PhD6 Manual - English - 13-322

8/12/2019 PhD6 Manual - English - 13-322

1/36

1

PHD6Gas Detector

ReferenceManual

Honeywell Analytics651 South Main StreetMiddletown, CT 06457800 711-6776 860 344-1079Fax 860 344 10686 May 2011Part Number 13-322Version 2.08www.honeywellanalytics.com


2/36

1

PHD6 PERSONAL PORTABLE GAS DETECTORS HAVE BEENDESIGNED FOR THE DETECTION AND MEASUREMENT OFPOTENTIALLY HAZARDOUS ATMOSPHERIC CONDITIONS

IN ORDER TO ASSURE THAT THE USER IS PROPERLY WARNED OFPOTENTIALLY DANGEROUS ATMOSPHERIC CONDITIONS, IT ISESSENTIAL THAT THE INSTRUCTIONS IN THIS REFERENCE MANUALBE READ, FULLY UNDERSTOOD, AND FOLLOWED.

PHD6Reference Manual

Part Number 13-322Version 2.08

Copyright 2011by

Honeywell Analytics, Inc.Middletown, Connecticut 06457

All rights reserved.No page or part of this operation manual may be reproduced in any form without

written permission of the copyright owner shown above.

Honeywell Analytics reserves the right to correct typographical errors.Specifications are subject to change without notice.


3/36

2

Table of Contents CERTIFICATION INFORMATION 4 OPERATING TEMPERATURE AND HUMIDITY LIMITS 4 S IGNAL WORDS 4 WARNINGS AND CAUTIONS 4 1. DESCRIPTION 7

1.1 Methods of sampling 7 1.2 Multi-sensor capability 7

1.3 Calibration 7 1.4 Alarm logic 7

1.4.1 Atmospheric hazard alarms 8 1.4.2 Low battery alarms 8 1.4.3 Sensor over range alarms 8 1.4.4 PID lamp out alarm 8 1.4.5 LEL response failure due to lack of O 2 alarm 8 1.4.6 Security beep/flash 8 1.4.7 Latching alarms 8 1.4.8 Fault detection 9

1.5 Other electronic safeguards 9 1.6 Sensors 9 1.7 Optional sample draw pump 9

1.7.1 Special precautions when using the PHD6 pump 9

1.8 Data storage 9 1.8.1 Black box data recorder 10 1.8.2 Event logger 10

1.9 PHD6 design components 10 1.10 PHD6 standard accessories 10

1.10.1 Alkaline PHD6 detectors 11 1.10.2 Li-Ion PHD6 detectors 11

1.11 PHD6 kits 11 1.11.1 PHD6 Confined Space Kits 11 1.11.2 PHD6 Value Packs 11

2. BASIC OPERATIONS 11 2.1 Turning the PHD6 On 11

2.1.1 Start up with pump 12 2.1.2 Start up with PID or IR sensor 12

2.2 Operating Logic 12 2.2.1 Status Bar 12

Battery Status Icon 12

Heartbeat Symbol 13

Pump Status Icon 13

Calibration and Bump Due Warnings 13

Time 13

2.2.2 Screen Flip 13 2.3 Turning the PHD6 Off 13 2.4 Atmospheric Hazard Alarms 13

2.4.1 O2 Alarms 13 2.4.2 Combustible Gas Alarms 13 2.4.3 Toxic and VOC sensor alarms 13

2.4.4 Alarm Descriptions 13 Warning Alarms 13

Danger Alarms 14

STEL Alarms 14

TWA Alarms 14

2.5 Other Alarms 14 2.5.1 Missing Sensor Alarms 14 2.5.2 Sensor Overrange alarm 14 2.5.3 PID Lamp Out Alarm 14 2.5.4 O 2 Too Low for LEL Alarms 14 2.5.5 Low Battery Alarms 14 2.5.6 Calibration Due Warning 15 2.5.7 Out of Temperature Range 15


4/36

3

2.6 PC Connection via Infrared Port 15 2.7 PID sensor reactivity ratios 15

2.7.1 Displayed VOC 16 2.7.2 Specified VOC Calibration Gas 16

2.8 Special Instructions for NDIR sensors 16 2.8.1 Special Calibration Requirement for NDIR CO 2 (Carbon Dioxide) Sensor 16 2.8.2 Special Consideration for IR CH 4 Methane sensor gas calibration 16 2.8.3 Hydrogen Warning for IR CH 4 Methane Sensor 16

3. S AMPLING 16

3.1 Manual sample draw kit 17 3.1.1 Manual sample draw kit usage 18 3.2 Motorized sample draw pump 18

3.2.1 Starting the motorized sample pump 18 3.2.2 Turning off the pump 19 3.2.3 Pump low flow alarm 19

3.3 Sample draw probe 19 4. CALIBRATION 20

4.1 Functional (Bump) testing 20 4.2 Fresh Air/Zero Calibration 20

4.2.1 Fresh air calibration failure 21 4.2.2 Forced fresh air calibration 21 4.2.3 Fresh air calibration in a contaminated atmosphere 21

4.3 Gas Calibration 22

4.3.1 Gas calibration failure: All sensors except oxygen 22 4.3.2 Gas calibration failure: Oxygen sensors 22

4.4 Special Calibration Instruction for NDIR CO 2 sensor 23 4.4.1 CO 2 Sensor True Zero 23

4.5 Special Calibration Instructions for NDIR-CH 4 Sensor 23 5. MENU OPTIONS 23

5.1 Basic Menu 23 5.1.1 Entering the Basic Menu 23

5.2 Main Menu 24 5.2.1 Entering the Main Menu 24 5.2.2 Using the submenus. 25 5.2.3 Alarms Menu 25 5.2.4 Calibration Menu 25 5.2.5 Configuration Menu 26

5.2.6 Screen Menu 26 5.2.7 Information Menu 26 5.2.8 Datalogger Menu 26

6. MAINTENANCE 27 6.1 Batteries 27 6.2 Replacing alkaline batteries 27 6.3 Maintaining Li-Ion battery packs 28

6.3.1 Storage guidelines for the Li-Ion battery 28 6.3.2 Charging guidelines for Li-Ion battery 28 6.3.3 Charging procedure for Li-Ion battery 28 6.3.4 Charging with the pump attached 28 6.3.5 Battery troubleshooting 28

6.4 Sensors 28 6.4.1 Sensor replacement 28

6.4.2 Care and maintenance of PID sensors 29 6.4.2.1 Troubleshooting the PID 29

6.4.2.2 Cleaning and replacing PID components 29

6.5 Sample probe assembly 30 6.5.1 Changing sample probe filters 30 6.5.2 Changing sample probe tubes (wands) 30

6.6 PHD6 Pump Maintenance 30 6.6.1 Replacing pump filters 30

APPENDICES 32 Appendix A Toxic gas measurement Warning, Danger, STEL and TWA alarms 32

1. Warning and Danger Alarms 32 2. Time Weighted Average (TWA) 32 3. Short Term Exposure Limits (STEL) 32


5/36


6/36

5

4. Use only Duracell MN1500 or Ultra MX1500, Eveready EnergizerE91-LR6, Eveready EN91 batteries in the alkaline battery pack. Substitution of batteriesmay impair intrinsic safety.

5. To reduce the risk of explosion, do not mix old or used batterieswith new batteries and do not mix batteries from different manufacturers.

6. Do not charge the PHD6 with any charger other than theappropriate PHD6 charger. Standard versions of the PHD6 must be charged with theUL/CSA-approved charger, which is part number 54-49-103-1. European versions of the

PHD6 must be charged with the ATEX-approved charger, which is part number 54-49-103-5.

7. The PHD6 must be located in a non-hazardous location during thecharging cycle. Charging the PHD6 in a hazardous location may impair intrinsic safety.

8. PHD6 rechargeable battery packs are supplied with PanasonicCGR18650D Lithium-Ion batteries. The Li-Ion batteries in the battery packs may not bereplaced by the user. The rechargeable pack must be obtained from Honeywell Analyticsand replaced as a complete assembly to maintain intrinsic safety.

9. The accuracy of the PHD6 should be checked periodically withknown concentration calibration gas. Failure to check accuracy can lead to inaccurateand potentially dangerous readings. (The Canadian Standards Association (CSA)requires an accuracy check using known concentration calibration gas prior to each

days use.)10. Fresh air/zero calibrations may only be performed in an

atmosphere that is known to contain 20.9% oxygen, 0.0% LEL and 0 PPM toxic gas.11. The accuracy of the PHD6 should be checked immediately

following any known exposure to contaminants by testing with known concentration testgas before further use. Failure to check accuracy can lead to inaccurate and potentiallydangerous readings.

12. A sensor that cannot be calibrated or is found to be out oftolerance should be replaced immediately. An instrument that fails calibration may notbe used until testing with known concentration test gas determines that accuracy hasbeen restored, and the instrument is once again fit for use.

13. Do not reset the calibration gas concentration unless you are using

a calibration gas concentration that differs from the one that is normally supplied byHoneywell Analytics for use in calibrating the PHD6.Customers are strongly urged to use only Honeywell calibration materials whencalibrating the PHD6. Use of non-standard calibration gas and/or calibration kitcomponents can lead to dangerously inaccurate readings and may void the standardHoneywell Analytics warranty.

14. Use of non-standard calibration gas and/or calibration kitcomponents when calibrating the PHD6 can lead to inaccurate and potentiallydangerous readings and may void the standard Honeywell Analytics warranty.Honeywell Analytics offers calibration kits and long-lasting cylinders of test gasspecifically developed for easy PHD6 calibration. Customers are strongly urged to useonly Honeywell calibration materials when calibrating the PHD6.

15. Substitution of components may impair intrinsic safety.

16. For safety reasons this equipment must be operated and servicedby qualified personnel only. Read and understand this reference manual beforeoperating or servicing the PHD6.

17. A rapid up-scale reading followed by a declining or erratic readingmay indicate a hazardous combustible gas concentration that exceeds the PHD6s zeroto 100 percent LEL detection range.

18. The PHD6 is not designed for use in oxygen enrichedatmospheres.


7/36

6

19. Do not use the PHD6 pump for prolonged periods in anatmosphere containing a concentration of solvent or fuel that may be greater than 50%LEL.

20. Do not unplug the NDIR-CH 4 or NDIR-CO 2 sensors in an explosiveatmosphere. Unplugging IR sensors in an explosive atmosphere may impair intrinsicsafety.


8/36

7

1. DescriptionThe PHD6 is a multi-sensor gas detector that canbe configured to meet a wide variety of userrequirements. This chapter provides an overviewof many of the features of the PHD6. Moredetailed descriptions of the specific features ofthe PHD6 are contained in the subsequentchapters of this manual.

1.1 Methods of samplingThe PHD6 may be used in either diffusion orsample-draw mode. In either mode, the gassample must reach the sensors for the instrumentto register a gas reading. The sensors arelocated at the lower front of the instrument.

The sensor ports must bekept free of obstruction. Blocked sensorports can lead to inaccurate and potentiallydangerous readings.In diffusion mode, the atmosphere beingmeasured reaches the sensors by diffusingthrough the sensor ports at the front of theinstrument. Normal air movements are enough tocarry the sample to the sensors. The sensorsreact quickly to changes in the concentrations ofthe gases being measured. Diffusion-styleoperation monitors only the atmosphere thatimmediately surrounds the detector.The PHD6 can also be used to sample remotelocations with its hand-aspirated sample-draw kitor with its motorized, continuous sample drawpump. During remote sampling, the gas sampleis drawn into the sensor compartment through theprobe assembly and a length of tubing. Remotesampling operations only monitor the atmosphereat the end of the sample draw probe.Use of the hand-aspirated sample draw kits iscovered in section 3.1.Use of the motorized sample draw pump iscovered in section 3.2.A detailed description of the PHD6 probeassembly is given in section 6.5

1.2 Multi-sensor capabilityThe PHD6 can be configured to simultaneouslymonitor oxygen, combustible gases and vapors,volatile organic compounds (VOCs), and a wide

variety of toxic gases. All sensors arereplaceable in the field.Note: The accuracy of the PHD6 must beverified by calibration with knownconcentration test gas whenever a change ismade to the sensors installed in theinstrument.Calibration procedures are discussed in detailin Chapter 4.The PHD6 can utilize a variety of sensor types todetect atmospheric contaminants includingelectrochemical sensors, PID (Photo IonizationDetector) sensors, NDIR (Non-Dispersive Infra-Red Absorbance) sensors and catalytic hot-beadLEL sensors.Different measurement units are used dependingon the gas being measured.

Type of Hazard Measurement unit

Oxygen (O 2)Percentage byvolume

Combustible gas(LEL Sensor)

Percentage of lowerexplosive limit

(%LEL) or %/Vol CH 4 Hydrocarbon-specificcombustible gassensor(NDIR CH 4)

Percentage of lowerexplosive limit(%LEL) or %/Vol CH 4

Volatile OrganicCompounds (VOCs)(PID Sensor)

Parts-per-million(PPM) or tenths of apart-per-million(0.1PPM)

Toxic Gases (byelectrochemicalsensor

Parts-per-million(PPM) somesensors capable oftenths of a part-per-

million (0.1PPM)Toxic Gas by NDIR CO 2 sensor

%/Vol CO 2

Table 1.2. PHD6 Units of Measurement.

1.3 CalibrationThe PHD6 detector features fully automatic freshair and gas calibration.

The accuracy of thePHD6 should be checked periodically withknown concentration calibration gas. Failureto check accuracy can lead to inaccurate andpotentially dangerous readings. (TheCanadian Standards Association (CSA)requires an accuracy check using knownconcentration calibration gas prior to eachdays use.)Calibration procedures are discussed in detailin Chapter 4.Recommended calibration frequency isdiscussed in Appendix B.

1.4 Alarm logicPHD6 gas alarms can be adjusted manuallyusing the PHD6s built in menu functions, with


9/36

8

BioTrak II software via IrDA interface, or with theIQ Database Manager Program through the IQ6Dock. (See Chapter 6 for direct menuprogramming instructions). Alarms may be setanywhere within the nominal range of the specificsensor. When an alarm set point is exceeded aloud audible alarm sounds, and the bright redLED alarm lights flash.

1.4.1 Atmospheric hazard alarmsPHD6 portable gas

detectors have been designed for thedetection of deficiencies of oxygen,accumulations of flammable gases andvapors, and accumulations of specific toxicgases. An alarm condition indicating thepresence of one or more of these potentiallylife-threatening hazards should be taken veryseriously. Failure to immediately leave thearea may result in serious injury or death.

In the event of an alarmcondition it is important to follow establishedprocedures. The safest course of action is toimmediately leave the affected area, and toreturn only after further testing determinesthat the area is once again safe for entry.Failure to immediately leave the area mayresult in serious injury or death.

A rapid up-scale readingfollowed by a declining or erratic reading mayindicate a hazardous combustible gasconcentration that exceeds the PHD6s zeroto 100 percent LEL detection range. Failure toimmediately leave the area may result inserious injury or death.The combustible gas alarms are activated whenthe reading for combustible gases exceeds oneof the alarm setpoints. Combustible gas readingsare typically given in terms of percent of LEL(Lower Explosive Limit), but may also be shownin terms of percent-by-volume methane (CH 4).The PHD6 includes Warning and Danger alarmsfor the both the LEL sensor and the NDIR-CH 4 sensor.Two oxygen alarm set points have beenprovided; a low alarm for oxygen deficiency and ahigh alarm for oxygen enrichment.Up to four alarm set points are provided for thePID sensor and for each toxic gas sensor:

Warning, Danger, STEL (Short Term ExposureLimit) and TWA (Time Weighted Average).Appendix A discusses Warning, Danger,STEL and TWA alarms.

1.4.2 Low battery alarmsThe PHD6 includes multi-staged alarms for boththe Li-Ion and alkaline battery packs to let theuser know that the battery is running low.For detailed information concerning the lowbattery alarms, see section 2.5.5.

Use only Duracell MN1500or Ultra MX1500, Eveready Energizer E91-LR6,Eveready EN91 batteries. Substitution ofbatteries may impair intrinsic safety.

1.4.3 Sensor over range alarmsThe PHD6 will go into alarm if a sensor isexposed to a concentration of gas that exceedsits established range. In the case of an LEL orNDIR-CH 4 sensor reading that exceeds 100%LEL, the sensor channel will be automaticallydisabled by the instrument and the instrument willremain in constant alarm until it is turned off,brought to an area that is known to be safe, andthen turned back on. The display will show avertical arrow with two heads in place of thesensor reading for any channel that has gone intoover range alarm.See section 2.5.2 for further details.

In the event of an LELoverrange alarm the PHD6 must be turned off,brought to an area that is known to be safeand then turned on again to reset the alarm.

1.4.4 PID lamp out alarmThe PHD6 monitors the status of the PID lamp toensure that it is functioning properly. Alarms aregenerated if the PHD6 determines that the lampis out. See section 2.5.3 for further details

1.4.5 LEL response failure due to lack of O 2 alarm

The PHD6 features automatic warning againstLEL sensor response failure due to lack ofoxygen. See section 2.5.4 for details.

1.4.6 Security beep/flash

The PHD6 includes a security beep function thatis designed to notify the user that the instrumentis powered up and running. Once enabled thePHD6 will emit a short audible beep and give ashort flash on the LED at a user-defined interval.The security beep/flash can be enabled manuallythrough the Main Menu (see chapter 5), withBioTrak II software or through the IQ6 Dock.

1.4.7 Latching alarmsThe PHD6s alarms are self-resetting unless thealarm latch is enabled. With the PHD6s alarmlatch enabled, the audible and visible alarms willcontinue to sound after the atmospheric hazardhas cleared. To reset the alarms, simply pressthe MODE button. If the alarm latch is disabledand the alarm condition is no longer present, theinstrument will automatically return to normaloperation, and the visible and audible alarmscease without further input from the user.Latching alarms can be enabled manuallythrough the Main Menu (see chapter 5), withBioTrak II software or through the IQ6 Dock.


10/36

9

1.4.8 Fault detectionPHD6 software includes a number of additionalalarms designed to ensure the proper operationof the instrument. When the PHD6 detects thatan electronic fault or failure condition hasoccurred, the proper audible and visible alarmsare activated and an explanatory message isdisplayed.Faults and other electronic safeguards arediscussed in detail in section 2.5.

The PHD6 is designed todetect potentially life threatening atmosphericconditions. Any alarm condition should betaken seriously. The safest course of actionis to immediately leave the affected area, andreturn only after further testing determinesthat the area is once again safe for entry.

1.5 Other electronic safeguardsSeveral automatic programs prevent tamperingand misuse of the PHD6 by unauthorizedpersons. Each time the detector is turned on, thePHD6 automatically tests the LED alarm lights,

audible alarm, internal memory and pump status(if so equipped). The battery is monitoredcontinuously for proper voltage. The PHD6 alsomonitors the connection of sensors that arecurrently installed. The detection of anyelectronic faults causes the activation of theaudible and visible alarms and causes the displayof the appropriate explanatory message.

1.6 SensorsThe PHD6 can be configured to simultaneouslymonitor oxygen, combustible gases and vapors,volatile organic compounds (VOCs) and a

number of toxic gases. The sensor configurationof the PHD6 may be specified at the time ofpurchase, or changed in the field by appropriatelytrained personnel.The PHD6 must be calibrated following anysensor replacement.Replacement sensor part numbers andsensor ranges are given in Appendix C.

A sensor that cannot becalibrated or is found to be out of tolerancemust be replaced immediately. An instrumentthat fails calibration may not be used untiltesting with known concentration test gasdetermines that accuracy has been restored,and the instrument is once again fit for use.Calibration procedures are discussed in detailin Chapter 4.1.6.1 Cross SensitivitySensor cross-sensitivity figures are given in

Appendix D.The CO channel in the Duo-Tox sensor in thePHD6 may exhibit high levels of cross sensitivityto organic vapors (VOCs). For best performance

in an atmosphere known to contain VOCs, use adedicated CO sensor.

1.7 Optional sample draw pump A motorized sample-draw pump is available forthe PHD6 for situations requiring continuous"hands free" remote monitoring.

The PHD6 continuoussample draw pump (part number 54-54-102) isthe only pump that can be used with the

PHD6.The pump contains a pressuresensor that detects restrictions inairflow caused by water or otherobstructions being drawn into theunit and immediately acts to turnthe pump off in order to protectthe sensors, pump, and otherPHD6 components from damage.Pump status is continuouslymonitored by the PHD6microcontroller. When the pumpis active and functioning properly,

the spinning pump icon is displayed in the statusbar at the bottom of the display. Low flow orother pump fault conditions activate audible andvisible alarms and cause the display of theappropriate explanatory message.

1.7.1 Special precautions when using thePHD6 pump

The rubber material used in the PHD6 diaphragmpump is susceptible to temporary compromise byexposure to high levels of flammable fuel andsolvent vapors. If the PHD6 is being used tosample atmospheres that exceed 50% LEL, testthe pump frequently to ensure that pump functionhas not been compromised.To test the pump, block the end of the samplingline (probe) inlet with a finger. The pump shouldquickly go into alarm, which indicates properfunction. If the pump fails to go into alarm whilethe inlet is blocked, it is not working properly; andthe PHD6 may not be providing an accuratereading. If the pump test fails, the safest courseof action is to immediately leave the affected areaand to return only after further testing with known,functional detection equipment confirms that thearea is once again safe for entry.

Do not use the pump tosample for prolonged periods in conditionswhere the concentration of solvent or fuelvapors may be greater than 50% LEL.

1.8 Data storageThe PHD6 includes a black box data recorderand an event logger as standard features. A fulldatalogger is available as an upgrade at anytime.


11/36

10

1.8.1 Black box data recorder A black box data recorder is a standard feature inthe PHD6. The black box is continually inoperation whether the user is aware of it or not.The black box stores important information suchas gas readings, turn-on times, turn-off times,temperatures, battery conditions, the most recentcalibration date and settings, types of sensorscurrently installed, sensor serial numbers,warranty expiration and service due dates, and

current alarm settings.There is a finite amount of memory storageavailable in the black box data recorder. Oncethe memory is full, the PHD6 will begin to writethe new data over the oldest data. The black boxdata recorder will store a minimum of 63 hours ofdata in one-minute increments before it begins towrite new data over the oldest data. In this way,the newest data is always conserved.To extract the information from the black box datarecorder, the PHD6 must be returned toHoneywell Analytics. Once the data isdownloaded from the instrument, a report will be

generated. The unit and the report will then bereturned to the user. Simply call Honeywell Analytics Instrument Service Department toobtain a return authorization number. There is nocharge for the downloading service, but the useris responsible for any freight charges incurred.The black box data recorder in the PHD6 canbe upgraded to a fully enabled datalogger at anytime. All that is required is the activation codethat corresponds to the serial number of thePHD6 and the PHD6 Upgrade Utility Program.

1.8.2 Event logger

The event logger in the PHD6 stores dataassociated with alarm conditions. Each (alarm)event includes the following data for each of theinstalled sensors:

Sensor type Max reading Average reading Start time End time Duration of the event.

The PHD6 stores the data from the 20 most

recent alarm events. Once 20 events have beenstored, the PHD6 will begin to systematicallyoverwrite the data from the oldest event inmemory with data from new events. One eventmay be a combination of different alarmsoccurring simultaneously or in immediatesuccession. The event logger may bedownloaded using BioTrak II software. The PCmust be equipped with IrDA to provide aconnection.

1.9 PHD6 design components1. Case: The instrument is enclosed in a solid

PC (polycarbonate) case with TPE (rubber)overmold.

2. Front face: The front face of the instrumenthouses the MODE button, navigation keys,LCD (liquid crystal display), LED alarm lights,and audible alarm ports.

3. Display: A liquid crystal display (LCD)shows readings, messages, and other

information.4. Alarm LEDs: Top, front and side-mountedLED (light emitting diode) alarm lights providea visual indication of alarm state.

5. Infrared Port: The infrared port is located atthe bottom of the instrument and is used forcommunication between the PHD6 and a PC.

6. On / Off "MODE" button: The large blackpush-button on the front of the instrument isthe "MODE" button. The MODE button isused to turn the PHD6 on and off as well asto control most other operations, includingthe initiation of the automatic calibrationadjustment.

7. Navigation Keys: The up and downnavigation keys are located between theMODE button and the display.

8. Sensor compartment cover: The sensorsare located in a vented compartment at thebottom of the instrument.

9. Audible alarm ports: Two cylindrical portsextending through the front of the instrumenton opposing sides of the MODE button housethe loud audible alarms. The waterproofaudible alarms seat directly to the rubberinner-liner to protect the instrument againstleakage or exposure to liquids.

10. Battery pack: Two types of interchangeablebattery packs (rechargeable Lithium Ion (Li-Ion) and disposable alkaline) are available foruse. Li-Ion battery packs are recharged withthe pack installed on the PHD6.

11. Battery charger connector: A water-resistant connector at the bottom of the caseassembly is used to connect the PHD6 to thedrop in style charger.

12. Battery Compartment / Clip: The batteryinserts from the back of the instrument. Asturdy clip attached to the battery allows theuser to wear the PHD6 on a belt or other

article of clothing.1.10 PHD6 standard accessoriesStandard accessories included with every PHD6include calibration adapter, additional tubing foruse during calibration, manual sample draw kit,reference manual and quick reference card. Themanual sample draw kit consists of a sampledraw / calibration adapter, squeeze bulb,replacement sample probe filters, ten feet/threemeters of tubing and a sample probe.


12/36

11

Standard configurations of the PHD6 aredelivered in a cardboard box with cardboardinserts.

1.10.1 Alkaline PHD6 detectorsIf the PHD6 has been purchased as an alkalineinstrument, the standard accessories include analkaline battery pack and a set of 3 disposable

AA alkaline batteries.

1.10.2 Li-Ion PHD6 detectors

If the PHD6 has been purchased as a Li-Ionrechargeable instrument, the standardaccessories include Li-Ion battery pack and aslip-in PHD6 charger.

1.11 PHD6 kitsPHD6 detectors may also be purchased as partof a complete kit that includes calibration gas,fixed-flow regulator and a hard-shell carryingcase.

1.11.1 PHD6 Confined Space KitsIn addition to the standard accessories listedabove, Confined Space Kits also includecalibration fittings, fixed-flow regulator withpressure gauge, and appropriate large cylinder(s)of calibration gas in a foam-lined, waterproofhard-shell carrying case.

1.11.2 PHD6 Value PacksPHD6 Value Packs include an alkaline PHD6, allstandard accessories, calibration fittings, smallcylinder of calibration gas, and fixed flowregulator in a foam-lined non-waterproof hard-shell carrying case.

2. Basic OperationsThe PHD6 is a three-button gas detector. Mostday-to-day functions are initiated solely with theMODE button. The MODE button controls: Turning the PHD6 on and off Turning on the backlight Viewing the MAX, STEL and TWA reading

screens Initiating the calibration sequence

2.1 Turning the PHD6 OnTo turn the PHD6 on, press and hold the MODEbutton for one second. The introduction screen isfollowed by a screen showing a list of installedsensors and the sensor ports they occupy. ThePHD6 has 5 sensor ports, but can displayreadings for as many as 6 distinct gases.

The serial number will thenbe shown. If the detectorhas a fully enableddatalogger, the interval andmemory capacity will beshown.The sampling interval isgiven in minutes andseconds. The dataloggersamples continuously, so the data stream must

be broken into intervals to be recorded. Thedatalogging interval defines the frequency of thebreaks in the data stream. The capacity is thenumber of hours and minutes it will take tocompletely fill the dataloggers memory. Oncethe memory is filled, the PHD6 will start to writenew data over the oldest data in order toconserve that most recent data.The sampling interval in the fully enableddatalogger may be modified using BioTrak IISoftware, the IQ Systems or manually throughthe Main Menu.If the PHD6 is equipped with

the standard black boxdatalogger, it will show BlackBox.In the PHD6, a one-minutesampling interval will result inthe ability to store a minimumof 63 hours of readingsbefore the oldest data is overwritten by new data.If fewer than 5 sensors are used, the capacity willincrease.

As the instrument performs abasic electronic self test, thedate, time, temperature andbattery type will bedisplayed. During the self-test, the PHD6 performs asystem memory check andtests to see if a motorizedpump is attached to theinstrument. If a pump is detected, it will be brieflyactivated during the self-test. For details on startup procedures for pump-equipped PHD6instruments see section 2.1.1 below.The PHD6 will then display each installed sensoralong with any associated alarms levels.


13/36

12

For more information concerning atmospherichazard alarms, see section 2.4.

After the alarm screens, the PHD6 will show thatStarting Session, Resetting Averages followedby the calibrations status screen. Whenever thePHD6 is turned on, it automatically starts a newoperating session and resets STEL and TWAcalculations. The MAX reading is also reset forthe new session.

If calibration is due and the calibration duewarning is enabled, the user will need toacknowledge the calibration due status bypressing the MODE button. Once the MODEbutton is pressed, the PHD6 will continue to thecurrent gas readings screenand the appropriatecalibration due icons will flashto remind the user that theinstrument is past due forcalibration. If calibration isnot due, the number of daysuntil the next calibration willbe shown before theinstrument proceeds to the current gas readingsscreen.

2.1.1 Start up with pumpPHD6 instruments that are equipped with a built-in motorized sample draw pump will have aslightly longer start up sequence. After thecalibration status screens, the PHD6 will promptyou to leak test the pump.

See section 3.2 for further instructions onusing the PHD6 pump.

2.1.2 Start up with PID or IR sensorWhen a PID or IR sensor isinstalled in the PHD6, there willbe a warm-up period duringwhich the hourglass icon andeither PID or IR will be shown.The VOC gas type and reading areshown in reverse text.

PID and IR readings thatare displayed during the sensor warm upperiod should not be considered accurate.The use of the PHD6 to monitor forcompounds detected by the PID or IR sensorduring the warm up period may lead toinaccurate and potentially dangerousreadings.

2.2 Operating LogicOnce the PHD6 has completed the start upsequence, the current gas readings screen will beshown. The status bar at the bottom of thedisplay shows time plus calibration, pump andbattery status.To turn on the backlight press the MODE buttononce. To view the peak readings screen, pressthe MODE button a second time. Press theMODE button a third time to view the Short TermExposure Limit (STEL) and Time Weighted

Averages (TWA) for the operating session.

Screens that are accessible with the MODEbutton (including the Peak and STEL/TWAscreens) are selectable by the user. See section5.2.6 for details.Note: The PHD6 must be in continuousoperation for at least 15 minutes before it willbe able to calculate STEL or TWA values. Forthe first 15 minutes of any operating session,the screen will show the length of time thatthe instrument has been operating instead ofthe STEL and TWA values.

2.2.1 Status BarThe status bar at the bottom of the current gasreadings shows general information including:

Battery StatusHeartbeat (instrument status)Pump StatusPID Hourglass (PID warmup period)

PID Lamp Status (shows Check Sen.)Bump Due WarningCalibration Due WarningTime

Battery Status IconThe battery status icon is located at the far lowerleft of the screen. The battery icon gives anindication of how much power is left in thebattery.


14/36

13

When the battery icon is empty, it isconsidered a low battery condition and theuser should take the appropriate steps toeither recharge the Li-Ion battery orreplace the alkaline batteries.For more information on the lowbattery alarms, see section 2.5.5.IR Hourglass SymbolThe hourglass symbol along with IRare shown in the status bar duringthe IR sensors 1-minute warm-upperiod. Once the warm-up period is over, thehourglass will no longer be shown.

PID Hourglass SymbolThe hourglass symbol along with PID are shownin the status bar during the PID sensors 5-minutewarm-up period. Once thewarm-up period is over, thehourglass will no longer beshown.When a PHD6 is equipped with both an IR and a

PID sensor, the PID hourglass is shown since thePID sensor takes longer to warm up than the IRsensor.Heartbeat SymbolWhen the instrument is properlycharged, calibrated and functioningnormally, the heartbeat symbol willflash in the status bar.Pump Status IconIf the pump is attached andfunctioning, the moving fan iconwill appear in the status bar.

Calibration and Bump Due WarningsIf the PHD6 is due forcalibration the calibrationbottle icon and triangularwarning symbol will be flashin the status bar.TimeThe time is shown on thecurrent gas readings screenat the lower right.

2.2.2 Screen FlipThe screen orientation of the PHD6 may beflipped (so that it can be read looking down fromabove instead of up from below) by pressing theup and down arrows simultaneously at theCurrent Gas Readings screen.

2.3 Turning the PHD6 OffTo turn the PHD6 off, pressand hold the MODE buttonuntil the display readsRelease MODE to shutdown. Then release theMODE button. The display

will briefly show Shutting Down and SavingSensors before the display goes blank.

2.4 Atmospheric Hazard AlarmsThe PHD6 is configured with a series of alarmsthat are designed to warn the user of hazardousatmospheric conditions.

The PHD6 is designed todetect potentially life threatening atmosphericconditions. Any alarm condition should betaken seriously. The safest course of actionis to immediately leave the affected area, andreturn only after further testing determinesthat the area is once again safe for entry.

2.4.1 O2 AlarmsThe PHD6 is equipped with both high and lowalarms for oxygen. Fresh air contains 20.9%oxygen.The low oxygen alarm indicates oxygendeficiency and is normally set at 19.5% at thefactory.The high alarm indicates oxygen enrichment andis normally set at 23.5% at the factory.

2.4.2 Combustible Gas AlarmsThe PHD6 is equipped with a 2-stage alarm forconcentrations of combustible gas.The default LEL warning alarm setting is 10%LEL. The default LEL danger alarm setting is20% LEL.The default warning alarm for NDIR-CH 4 sensorsis 10% LEL or 0.5%/vol CH 4. The default dangeralarm is 20% LEL or 1.0%/vol CH 4.

2.4.3 Toxic and VOC sensor alarmsThe PHD6 is equipped with up to four differentalarms for toxic gases and volatile organiccompounds (VOCs). The combination of alarmsis designed to protect the user from both chronicand acute toxic hazards.Current alarm settings are shown during thestartup sequence, and can also be accessedthrough the Alarms Menu.

2.4.4 Alarm DescriptionsWarning AlarmsWarning alarms indicate a hazardousatmospheric condition that has not yet risen tothe level necessary to initiate the danger alarms.Warning alarms can be temporarily silenced bypressing the MODE button.


15/36

14

Danger AlarmsDanger alarms indicate a significantly hazardouscondition. The danger alarms cannot be silencedby the user.

STEL AlarmsSTEL (Short Term Exposure Limit) alarm valuesrepresent the average concentration ofinstrument readings for the target gas for themost recently completed 15 minutes of operation.

TWA Alarms TWA (Time Weighted Average) values arecalculated by taking the sum of exposure to aparticular toxic gas in the current operatingsession in terms of parts-per-million-hours anddividing by an eight-hour period.

2.5 Other AlarmsThe PHD6 will display warnings or errormessages when it detects problems duringoperation.

2.5.1 Missing Sensor Alarms

During startup, if the PHD6 fails to detect asensor that was present when the instrument waslast turned off, it will show the sensor channelwith None and the triangular warning symbol atthe Loading Sensors screen.

Press MODE to acknowledge the missing sensor

If the PHD6 loses connection with a sensorduring an operating session, itwill immediately go into alarmand show an X in the spaceon the display allotted for thesensor reading. The PHD6must be turned off to reset themissing sensor alarm.

2.5.2 Sensor Overrange alarmThe PHD6 will show a verticaldouble-headed arrow and go intoalarm if a sensor is exposed to aconcentration of gas thatexceeds its established range.In the case of an LEL readingthat exceeds 100% LEL, the LEL channel will beautomatically disabled by the instrument and thealarm will latch (remain on) until the instrument isturned off. The PHD6 must be turned off, broughtto an area that is known to be safe (containing20.9% oxygen, 0% LEL and 0 PPM toxic gases),and then turned back on. The display will show a

vertical arrow with two heads in place of thesensor reading for any channel that has gone intoover range alarm.

A combustible sensoroverrange alarm indicates a potentiallyexplosive atmosphere. Failure to leave thearea immediately may result in serious injuryor death!

In the event of an LELoverrange alarm the PHD6 must be turned off,brought to an area that is known to be safe(containing 20.9% oxygen, 0% combustiblegases and 0 PPM toxic gases), and thenturned on again to reset the alarm.

2.5.3 PID Lamp Out AlarmThe PID sensor in the PHD6uses a lamp to ionize the gassample and generate a reading.If the lamp fails to light duringinstrument startup, the PHD6 will attempt to startit for the duration of the warm-up cycle. If thelamp lights, the PHD6 will complete the warm-up

cycle and then enter standard operating mode. Ifthe lamp fails to light by the end of the 5-minutewarm-up cycle, the instrument will display an X inthe PID channel and the instrument will go intoalarm. The status bar at the bottom of the screenwill also show Check Sen. to let the user knowthat the PID sensor is not functioning.The PHD6 also tests the lamp in the PID sensorat regular intervals during normal operation. If thePHD6 determines that the lamp has gone out, theX will appear on the display in the PID channel,the instrument will go into alarm and the statusbar will show Check Sen.

2.5.4 O 2 Too Low for LEL AlarmsThe LEL sensor in the PHD6 requires a certainamount of oxygen to function properly. Whenoxygen levels fall below 11% by volume, thePHD6 will show X in place of the LEL readingand will indicate the oxygen levels are too low.

2.5.5 Low Battery AlarmsWhen the battery icon in the LCD appearsempty, it means that a low batterycondition exists. Leave the areaimmediately.If the PHD6 is equipped with an alkalinebattery pack, proceed to an area that is known tobe safe area (containing 20.9% oxygen, 0%combustible gases and 0 PPM toxic gases) andchange the batteries.

The PHD6 must be locatedin a non-hazardous location wheneveralkaline batteries are removed from the


16/36

15

alkaline battery pack. Removal of the alkalinebatteries from the battery pack in a hazardousarea may impair intrinsic safety.

CAUTION Always turn the PHD6 off prior toremoving the battery pack. Removal of thebattery pack with the instrument turned onmay cause corruption of stored data in thePHD6. If the PHD6 is equipped with a Li-Ion batterypack, proceed to an area that is known to be safeand recharge the battery pack.If the PHD6 continues to be used during a lowbattery condition, it will eventually go into a lowbattery alarm, and the warning alarm will soundand the screen will display the low batterywarning. To silence the alarms, the user willneed to acknowledge the low battery condition bypressing the MODE button before the instrumentwill resume monitoring. Once the MODE buttonis pressed, the empty battery cell and the cautionicon will flash. After 5 minutes the warning willsound again. This cycle will continue until thebattery reaches a very low battery condition,when the instrument will go into alarm for the lasttime, notify the user that it is shutting itself andproceed to turn itself off.Alkaline battery replacement and Li-Ionbattery charging instructions are contained insections 6.2 and 6.3.

The PHD6 must be locatedin a non-hazardous location during thecharging cycle. Charging the PHD6 in ahazardous location may impair intrinsicsafety.

2.5.6 Calibration Due Warning

If the PHD6 is due for calibration, the triangularwarning symbol and spanbottle icons will flash in thestatus bar at the bottom of theLCD once per second as areminder.

2.5.7 Out of Temperature RangeIf the operating temperaturefalls outside of the normaloperating range of a sensor inthe PHD6, the instrument will gointo alarm and the thermometer

icon will be shown on the display at the sensor.2.6 PC Connection via Infrared PortPHD6 instruments thatare equipped with a fullyenabled datalogger canbe downloaded to a PCusing BioTrak II or IQsoftware through thePHD6s infrared port. TheIrDA port is located on thebottom of the instrumenttowards the back.

1. If the PHD6 is turned off, hold the MODEbutton down for about 5 seconds untilCommunication Mode is shown. If thePHD6 is on already, proceed to step 2.

2. Align the infrared port onthe PHD6 with the PCsinfrared port to completethe connection.

Note: For furtherinstructions concerning the

download procedure for thePHD6, see the BioTrak II orIQ System manual as appropriate.

2.7 PID Sensor Correction FactorsThe PHD6 may be equipped with a PID (PhotoIonization Detector) sensor designed to detectVolatile Organic Compounds. The PID sensoremploys an ultraviolet lamp to ionize the VOCs inthe sample. The detector is then able to measurethe level of the VOCs and generate a reading..PID sensors are broadband in nature. This

means that they are inherently non-specific. Anygas or vapor that is ionized at the UV lampenergy will give a response.

It must be understood that theselection of a particular VOC or gas from theonboard PID library in the PHD6 does not implythat the detector will only respond to thatmaterial. It only means that the sensitivity scale(and default alarms) has been set to approximatethe target material.

Regardless of the library material selected, thePID sensor always remains broadband in natureand therefore will respond to any gases/vapors inthe ambient environment that are present and areionized at the UV lamp energy. Thisconsideration is particularly important when traceor hard to detect materials (higher correctionfactor (CF)) are present in highly contaminatedbackgrounds. In this case the PID would be apoor choice for detection of the target gas/vapor.

Correction factors in the PHD6onboard PID library for various, common VOCs

and gases should be considered as approximate.The PHD6 with PID has been fully tested andvalidated only for performance with isobutylene.

For other materials requiring verified accuracy itis necessary to calibrate the detector to thegas/vapor to be monitored directly. Further ifusing remote sample draw and/or physicalconditions in the field that differ from ambient, toperform calibrations as close to the physical andactual setup conditions as possible.


17/36

16

The convention in the gas detection industryis to calibrate the PID sensor to a knownconcentration of isobutylene and (asrequired) to use response factors or to selectthe scale of target gas from a pre-programmed menu. Sensitivity scale isdisplayed on the channel with 7 characterdesignation whether it is isobutylene oranother material.

2.7.1 Displayed VOC

To change the displayedVOC, first enter the BasicMenu by holding the MODEbutton to turn the PHD6 off.When Release MODE toShut Down is shown,continue to hold the MODEButton until the Basic Menuis shown.

At the Basic Menu press the down arrow once toselect Displayed VOC. A list of Volatile OrganicCompounds will be shown. Use the navigationarrows to highlight the appropriate VOC andpress MODE to select it. The new VOC will beshown when the PHD6 is restarted.

2.7.2 Specified VOC Calibration Gas

To change the calibration gas for PID sensor,follow the instruction in section 5.2.1 to reach theMain Menu. Then access the Calibration Menufollowed by the Gas Values submenu. Once inthe Gas Values submenu, select the VOCsensor. Then select Cal Gas Type and specifythe appropriate compound and amount forcalibration.

2.8 Special Instructions for NDIRsensors

Two NDIR sensors are available for the PHD6:One for the detection of carbon dioxide (CO 2),and one for the detection of methane (CH

4).

2.8.1 Special Calibration Requirement forNDIR CO 2 (Carbon Dioxide) Sensor

Unlike most sensors the Infrared CO 2 sensorrequires two different gas sources to fullycalibrate the instrument. The reason for this isthat it is effectively impossible to zero calibrate aCO 2 detector in ambient air because there is anunknown and varying amount of background CO 2present in the atmosphere.See section 4.4 for more details.

2.8.2 Special Consideration for IR CH 4Methane sensor gas calibration

The NDIR-CH 4 sensor is designed specifically forthe detection of methane. Gas calibration shouldalways be done with methane calibration gas atthe actual amount of methane shown on thecylinder. See section 4.5 for details.

2.8.3 Hydrogen Warning for IR CH 4 MethaneSensor

Unlike other types of sensors used to measurecombustible gases and vapors, the IR CH 4 sensorused in the PHD6 does not respond to hydrogen.

Do not use the NDIR CH 4 sensor for the detection of hydrogen. Unlikecatalytic hot-bead LEL sensors, the NDIR CH 4sensor in the PHD6 does not respond tohydrogen. Use the of the NDIR CH 4 for thedetection hydrogen may lead to propertydamage, personal injury or death.

3. SamplingThe PHD6 may be used in

either diffusion or sample-drawmode. In either mode, the gassample must reach the sensorsfor the instrument to register agas reading. The sensors arelocated on the front of theinstrument near the bottom in avented compartment.

The sensorports must be kept free ofobstruction. Blocked sensorports can lead to inaccurateand potentially dangerous

readings.In diffusion mode, the atmosphere beingmeasured reaches the sensors by diffusingthrough vents in the instrument. Normal airmovements are enough to carry the sample tothe sensors. The sensors react quickly tochanges in the concentrations of the gases beingmeasured. Diffusion-style operation monitorsonly the atmosphere that immediately surroundsthe detector.The PHD6 can also be used to sample remotelocations with either the hand-aspirated sample-draw kit, or with the motorized sample draw

pump. During remote sampling, the gas sampleis drawn into the sensor compartment through theprobe assembly and a length of tubing.

The PHD6 is deliveredwith a sample draw kit that contains 10 feet/3meters of polyester urethane (fuel-resistant)tubing part number 53-001. This material iscompletely compatible with commoncombustible gases/vapors, and the toxicgases CO and H 2S. When using the PHD6with a sample draw pump or kit to samplewith any of the gas types and tubing lengths


18/36

17

listed in the chart below, FEP-Lined Tubing(part number 53-036) should be used.

Gas Type Tubing LengthCL 2, CLO 2 Up to 10 ft/3m Max.HCN Up to 100 ft/30m

Max.PID, SO 2, NO, NO 2,PH 3, NH 3

> than 10 ft/3m upto 100 ft/30m Max.

Standard polyester urethane (fuel-resistant)tubing (part number 53-001) can be usedotherwise. Use of other types of tubing maycause inaccurate and potentially dangerousreadings that could result in serious injury ordeath.

For sampling using a PID sensor please referto the Application Note titled Usage andApplications of PID sensors version B1included with your PhD documentation orcontact customer service at 800-711-6776 torequest a copy.

Do not use the NDIR CH 4 sensor for the detection of hydrogen. Unlikecatalytic hot-bead LEL sensors, the NDIR CH 4sensor in the PHD6 does not respond tohydrogen. Use of the NDIR CH 4 for thedetection of hydrogen may lead to propertydamage, personal injury or even death.

3.1 Manual sample draw kitThe manual sample draw kit is comprised of asample draw probe, 2 sections of tubing, asqueeze bulb and an adapter that is used to

connect the sample draw accessories system tothe PHD6.Note: The maximum amount of tubing thatcan be used with the manual sample draw kitis 50 feet/15 meters.


19/36

18

3.1.1 Manual sample draw kit usageThe PHD6s manual sample

draw kit may not be usedfor the detection ofchlorine (Cl 2) or chlorinedioxide (ClO 2) due to thereactive properties ofthese gases.To use the manual sampledraw kit:1. Connect the short

section of hose thatcomes off the squeezebulb to the sample drawadapter.

2. To test the seals in the sample draw system,cover the end of the sample draw probe witha finger, and squeeze the aspirator bulb. Ifthere are no leaks in the sample draw kitcomponents, the bulb should stay deflated fora few seconds.

3. Secure the calibration adapter (with thesample draw assembly attached) to thePHD6 by inserting the tab and tightening theknurled screw into the brass nut at thebottom of the adapter.

4. Insert the end of the sample probe into thelocation to be sampled.

5. Squeeze the aspirator bulb to draw thesample from the remote location to thesensor compartment.To ensure accurate readings while usingthe manual sample draw kit, it isnecessary to squeeze the bulb once forevery one foot of sampling hose for the

sample to first reach the sensors, andthen to continue squeezing the bulb onceper second for an additional 45 secondsor until readings stabilize. As an example,if 10 feet/3 meters of tubing is used, it willbe necessary to draw the sample in bysqueezing the bulb continuously for aminimum of 55 seconds or until readingsstabilize.

6. Note the gas measurement readings.CAUTION: Hand-aspirated remote samplingonly provides continuous gasreadings for the area in which

the probe is located while thebulb is being continuouslysqueezed. Each time a readingis desired, it is necessary tosqueeze the bulb a sufficientnumber of times to bring afresh sample to the sensorcompartment.

3.2 Motorized sampledraw pump

The PHD6continuous sample draw pump

(part number 54-54-102) is the only pump thatcan be used with the PHD6.

A motorized sample-draw pump is available forthe PHD6 for situations requiring continuous"hands free" remote monitoring. The pump ispowered by the PHD6 battery. When the pump isattached to the instrument, the spinning fan iconwill be shown on the display in the current gasreadings screen.

Note: The maximum amount of

tubing that can be used with themotorized sample draw pump is100 feet/30 meters.

To ensure accurate readings while using thecontinuous sample pump, it is necessary toallow the pump to draw the sample for onesecond for every one foot of sampling hoseplus an additional 45 seconds or untilreadings stabilize. For example, with 10 ft/3mof tubing, it will be necessary to allow aminimum of 55 seconds for the sample to bedrawn into the sensor chamber and for thereadings to stabilize.

PHD6 instruments are designed to automaticallyrecognize the pump whenever it is attached tothe instrument. If the pump is attached when thePHD6 is turned off, the instrument willautomatically initiate the pump start up sequencewhen the instrument is turned on. If the pump isattached while the instrument is running, thePHD6 will automatically initiate the pump testsequence before returning to the current gasreadings screen.

Do not use the PHD6pump for prolonged periods in an atmospherecontaining a concentration of solvent or fuelthat may be greater than 50% LEL.

3.2.1 Starting the motorized sample pumpFirst attach the probe and tubing to the pump,then secure the pump (with the sample drawassembly attached) to the PHD6 by hooking thetabs on the pump into the corresponding slots onthe back of the PHD6. Once the pump is inposition over the sensors, tighten the knurledscrew on the adapter into receptor at the centerof the sensor cover.Note: The sample probe assembly must beattached to the pump when the pump isattached to the instrument.Once the pump is recognized, the pump testsequence will be initiated automatically. Theinstrument will instruct you to block the sampleinlet.


20/36

19

Block the sampling inlet by placing a finger overthe end of the sample probe assembly. Once theblockage is detected, the PHD6 will indicate thatthe test has been passed and instruct you toremove the blockage. Once the blockage isremoved, it will proceed to the current gasreadings screen and the pump icon will be shownin the status bar.

If the instrument is unable to detect the vacuumresulting from the pump blockage within 30seconds, the test will fail, the instrument will gointo alarm and you will be directed to remove thepump.Remove the pump and press the MODE button toresume diffusion operation.

3.2.2 Turning off the pumpTo turn off the pump, simply remove the pumpfrom the bottom of the instrument. The screenwill show Pump Fault followed by PumpDisconnected. Press MODE to continue withoutthe pump.

3.2.3 Pump low flow alarmThe PHD6 Pump contains a pressure sensor thatcontinuously monitors for restrictions in airflowcaused by water or other fluids being drawn intothe unit and immediately acts to turn the pump offin order to protect the sensors, pump, and otherPHD6 components from damage.CAUTION: Never perform remote samplingwith the PHD6 without the sample probeassembly. The sample probe handle containsreplaceable filters designed to block moistureand remove particulate contaminants. If thepump is operated without the probe assembly

in place, contaminants may cause damage tothe pump, sensors and internal componentsof the PHD6When the pump is active andfunctioning properly, the movingpump icon is shown on the lowerstatus bar on the display. Lowflow or other pump faultconditions activate audible and visible alarms andcause the display of the appropriate explanatory

message.

Press MODE once the blockage has beencleared to restart the pump.The pressure sensor in the sample draw pump is

designed to detect pressure changes while thesample-draw probe is being held in a verticalposition. If the probe is held horizontally or at alow angle while inserted into a fluid, a pressuredrop sufficient to cause the pump to shut downmay not be generated, and water could be drawninto the pump assembly causing damage to thepump, sensors and internal components of thePHD6.CAUTION: Insertion of the sample draw tubeinto a fluid horizontally or at a low angle maylead to water ingress and may cause damageto the sensors and internal components of the

PHD6. If the PHD6 determines that a significant increasein pressure has occurred, it will go into alarm andnotify the user that there is a blockage of thepump. The display will alternate between thefollowing two screens.Remove the blockage and press the MODEbutton to acknowledge the alarm and resumesampling.

3.3 Sample draw probeThe PHD6s sample draw probe is the standardprobe assembly from Honeywell Analytics. Thesample probe handle contains moisture barrierand particulate filters designed to removecontaminants that might otherwise harm theinstrument.Particulate contaminants are removed by meansof a cellulose filter. The hydrophobic filterincludes a Teflon barrier which blocks the flowof moisture as well as any remaining particulatecontaminants.Sample probe filters should be replacedwhenever visibly discolored due to contamination.


21/36

20

See section 6.5 for a probe diagram and a listof available sample probe filter replacementkits.

4. CalibrationThe accuracy of the PHD6 should be verified ona regular basis. Verification can be as simple asperforming a bump test, which is described belowin section 4.1. If the instrument fails the fresh airtest, then it must be fresh air calibrated beforeuse. If the instrument fails the bump test withcalibration gas, it must be successfully spancalibrated before use.Note: The NDIR-CO 2 sensor used in the PHD6cannot be zero calibrated in fresh air. Forspecific instructions on calibrating the CO 2 sensor, proceed to section 4.4.Note: The NDIR-CH 4 sensor used in the PHD6must be calibrated with methane calibrationscale to the actual amount of methane in thecylinder in terms of percent volume methane.See section 4.5 for details.* The Canadian Standards

Association (CSA) requires combustible gassensors to be bump tested prior to each daysuse with calibration gas containing between25% and 50% LEL. The functional (bump) testprocedure is covered in section 4.1.** The Canadian StandardsAssociation (CSA) requires combustible gassensors to undergo calibration when thedisplayed value during a bump test fails to fallbetween 100% and 120% of the expectedvalue for the gas.For Honeywell Analytics officialrecommendations concerning calibrationfrequency, see Appendix B.

4.1 Functional (Bump) testingThe accuracy of the PHD6 may be verified at anytime by a simple functional (bump) test.To perform a functional (bump) test, do thefollowing:1. Turn the PHD6 on and wait at least three

minutes to allow the readings to fullystabilize. If an IR or PID sensor is in use,wait until the stabilization period ends beforeproceeding. If any of the sensors have justbeen replaced, the new sensor(s) must beallowed to stabilize prior to use. See section6.4 for further details on sensor stabilizationrequirements.

2. Make sure the instrument is located in freshair.

Figure 4.1 Bump Test / Gas calibration set up

3. Verify that the current gas readings matchthe concentrations present in fresh air. Theoxygen (O 2) sensor should read 20.9%/vol.(+/-0.2%/vol.). The readings for the LELsensor should be 0% LEL. The PID, NDIR-CH 4 and toxic sensors should read 0 parts-per-million (PPM) in fresh air. For the NDIR-CO 2 sensor, a carbon dioxide level between0.03% and 0.10% is considered normal infresh air. If the readings deviate from theexpected levels in a fresh air environment,proceed to section 4.2 and perform the freshair calibration adjustment then proceed tostep 4.

4. Attach the calibration adapter and connectthe calibration cylinder to the PHD6 as shownin figure 4.1. Flow gas to the sensors.

5. Wait for the readings to stabilize. (Forty-fiveseconds to one minute is usually sufficient.)

6. Note the readings. Toxic, VOC andcombustible gas sensor readings areconsidered accurate in a bump test if theyare between 90%* and 120% of the expected

reading as given on the calibration cylinder.If the readings are considered accurate, thenthe instrument may be used without furtheradjustment. If the readings do not fall within90%* and 120% of the expected reading asgiven on the calibration cylinder, thenreadings are considered inaccurate. Ifreadings are considered inaccurate, proceedto section 4.3 and perform the gascalibration.

*Note: The Canadian Standards Association(CSA) requires combustible gas sensors toundergo calibration when the displayed value

during a bump test fails to fall between 100%and 120% of the expected value for the gas.Honeywell multi-calibration gas mixturescontain approximately 18% oxygen. Duringthe bump test the oxygen sensor should readwithin +/-0.5% of the level given on thecalibration cylinder.

4.2 Fresh Air/Zero CalibrationNote: The NDIR-CO 2 sensor in the PHD6 maynot be zero calibrated in fresh air. Seesection 4.4 for further instructions.


22/36

21

Fresh air/zero calibrationsmay only be performed in an atmosphere thatis known to contain 20.9% oxygen, 0.0% LELand 0 PPM toxic gas.To initiate the fresh air/zero calibration:1. Press the MODE button three times within

two seconds to begin the fresh air/zerocalibration sequence. The PHD6 will brieflydisplay AUTO CAL and then begin a 5-second countdown.

2. Press the MODE button before the end of the5-second countdown to begin the freshair/zero calibration. The fresh air/zerocalibration is initiated when the PHD6 showsCalibrating on the screen.

3. The PHD6 will indicate when the fresh

air/zero calibration is complete. It will thenproceed to a second 5-second countdown forthe gas calibration. If gas calibration is notrequired, allow the countdown to reach 0without pressing the MODE button.

For instructions on the Gas Calibration,proceed to section 4.3.

4.2.1 Fresh air calibration failureIn the event of a fresh aircalibration failure, thealarms will be activated andthe instrument will displaythe following screen. Notethat the sensor(s) that failthe zero calibration areshown (in this case, CO)

After 3 seconds, the PHD6will return to the current gas readings screen andthe visual and audible alarms will cease.When calibration is due, the triangular warningsymbol along with the span bottle icon thePHD6s status bar will showIf a successful fresh air calibration is notperformed prior to instrument shut down, thePHD6 will note that Fresh Air Calibration is dueduring instrument start up.

Possible causes and solutions1. The atmosphere in which the instrument is

located is contaminated (or wascontaminated at the time the instrument waslast fresh air calibrated.

2. A new sensor has just been installed.3. Instrument has been dropped or banged

since last turned on.4. There has been a significant change in

temperature since the instrument was last

used.Recommended action:Take the instrument to fresh air and allowreadings to stabilize. Perform the fresh air/zeroadjustment again. If the manual fresh air/zeroprocedure fails to correct the problem, performthe manual fresh air / zero calibration procedureas described in section 4.2.2 below.

4.2.2 Forced fresh air calibrationThe PHD6 includes safeguards to prevent freshair calibration in contaminated environments. Ifthe standard fresh air calibration fails a second

time, the instrument may be forced to acceptthe fresh air calibration by performing the manualfresh air calibration.

Fresh air calibrations mayonly be performed in an atmosphere that isknown to contain 20.9% oxygen, 0.0% LELand 0 PPM toxic gas. Performing a fresh aircalibration in a contaminated atmospheremay lead to inaccurate and potentiallydangerous readings.1. Initiate the standard fresh air / zero

calibration sequence by pressing the MODEbutton three times in rapid succession. The5-second countdown will begin.

2. Press and hold the down arrow key and thenpress the MODE button before the end of the5-second countdown. Continue to hold thedown arrow.

3. The fresh air/zero calibration is completewhen the instrument begins another 5-second countdown for the gas calibration. Ifgas calibration is not required, allow thecountdown to reach 0 without pressing theMODE button.

If the PHD6 still fails to calibrate after thisprocedure is attempted, contact Honeywell

Analytics.

4.2.3 Fresh air calibration in a contaminatedatmosphere

To fresh air calibrate the PHD6 in a contaminatedatmosphere, connect a cylinder of zero aircontaining 20.9% oxygen and no contaminants tothe PHD6 and flow gas to the instrument. Thenperform the fresh air calibration. See figure 4.1above for setup.


23/36


24/36

23

manner as the toxic and LEL sensors.If the O2 sensor fails to register a reading below19.5% during the gas calibration, the display willshow Check O2 Sensor Response. PressMODE to continue.If the oxygen sensor fails to register the drop inoxygen during the gas calibration while beingchallenged with calibration gas containing lessthan 19.0% oxygen, it should be considered outof tolerance and retired from service immediately.

See section 5.2.4 under Gas Values for moreinformation on the O2 sensor check.

A sensor that cannot becalibrated or is found to be out of toleranceshould be replaced immediately. Aninstrument that fails calibration may not beused until testing with known concentrationtest gas determines that accuracy has beenrestored, and the instrument is once again fitfor use.Possible causes and remedies for oxygensensor failure:

1. Calibration gas cylinder does not contain areduced level of oxygen. Verify that thecylinder contains less than 19.0% oxygen.To challenge the oxygen sensor withoutcalibration gas, hold you breath of about 10seconds and then slowly exhale directly ontothe face of the sensor (in the same way youwould attempt to fog up a piece of glass). Ifthe descending oxygen alarm is set to 19.5%,the instrument should go into alarm after afew seconds. If the oxygen sensor fails to gointo alarm during the exhalation test, theoxygen sensor must be replaced.

2. Oxygen sensor has just been replaced andhas not had time to stabilize.

3. Oxygen sensor failure.

4.4 Special Calibration Instructionfor NDIR CO 2 sensor

The Infrared CO 2 sensor requires two differentgas sources for full calibration. The reason forthis is that it is effectively impossible to zerocalibrate a CO 2 sensor in ambient air becausethere is an unknown and varying amount ofbackground CO 2 present in the atmosphere.

4.4.1 CO 2 Sensor True ZeroTo determine if the CO 2 sensor requires zerocalibration, connect the PHD6 to a cylinder ofcalibration gas that contains 0.00% CO 2 while theinstrument is in normal operation.If the reading shows 0.00% CO 2, then the CO 2 sensor does not require zero calibration.Disconnect the cylinder from the PHD6.If the reading shows anything other than 0.00%CO 2, leave the calibration gas on and press theMODE button three times within two seconds toinitiate the zero calibration sequence. Press

MODE again when prompted to begin the zerocalibration. Instruments equipped with a CO 2 sensor will automatically show the messagePress MODE if applying Zero Air with another 5-second countdown. Press MODE again to beginthe true zero calibration and follow theinstructions given on the screen. Once the zerocalibration is complete, remove the zero aircylinder from the instrument and proceed to thegas calibration (if necessary).

The gas calibration of the CO 2 sensor isperformed during the standard gas calibrationthat is described above in section 4.3. The PHD6will automatically prompt the user to apply theCO 2 calibration gas during the standard gascalibration sequence.

4.5 Special Calibration Instructionsfor NDIR-CH 4 Sensor

In many ways, the NDIR-CH 4 sensor used in thePHD6 is similar to a hot bead LEL sensor. Forthe purpose of calibration, they are very different.While LEL sensors can be calibrated with anumber of other gases when properly configured,The NDIR-CH 4 sensor must be calibrated withmethane to the exact amount shown on thecalibration gas cylinder. (This is different fromLEL sensors, where methane may be used forcalibration, but is often done at a scale thatmakes the readings mimic those given by aspecific amount of propane or pentane).

The NDIR CH 4 sensor inthe PHD6 must be calibrated using methane(CH 4) calibration gas at the actual amountshown on the cylinder. The defaultcalibration gas value for the NDIR-CH 4 sensor

is 50% LEL. The appropriate calibration gaslevel for the 50% LEL default calibration gassetting is 2.50%/vol. CH 4. Use ofinappropriate calibration gas may lead toinaccurate and potentially dangerousreadings.

5. Menu OptionsThe PHD6 operating firmware includes two menuoptions: the Basic Menu and the Main Menu.

5.1 Basic MenuThe Basic Menu is a shortened version of theMain Menu that offers immediate access to a fewkey functions including:

PID On/Off (enable or disable the PIDsensor)

Displayed VOC (select the targetcompound for the VOC sensor)

Contrast (displays light vs. dark setting) Main Menu access

5.1.1 Entering the Basic MenuTo access the Basic Menu, with the PHD6 on andthe current gas readings screen shown, hold the


25/36

24

MODE button down until the PHD6 beeps fourtimes and the Release MODE to Shut Down isshown. Then continue to hold the MODE Buttonuntil the Basic Menu is shown.

To navigate through the menu options, use theup and down navigation arrows to highlight thedesired submenu and press MODE to enter thesubmenu.

5.2 Main MenuThe PHD6 is fully configurable through the MainMenu. The Main Menu contains 6 sub menusthat lead to controls for the individual instrumentfunctions.

To navigate through the menu options, use theup and down navigation arrows to highlight thedesired submenu and press MODE to enter thesubmenu.To navigate through the menu options, use theup and down navigation arrows to highlight thedesired submenu and press MODE to enter thesubmenu.

Main Menu Options Diagram

5.2.1 Entering the Main MenuThere are two paths into the main menu.If the instrument is on , pressand hold the MODE buttondown for three seconds untilShutting Down is shown,then release the MODEbutton. The next screen willshow shutting down alongwith two black blocks at the

bottom of the screen. Pressand hold the two arrow keyswhile the two blocks areshown to enter the mainmenu.If the instrument is off , pressthe MODE button to start theinstrument. When StartingSession, Resetting Averagesis shown along with two blackblocks, press and hold thetwo arrow keys while the two blocks are shown toenter the main menu.


26/36

25

The Main Menu is the access point to 6submenus that control virtually every aspect ofthe PHD6s functionality.NOTE: Changes made in the Main Menu canhave a direct affect on the PHD6sfunctionality and should only be made bythose who are trained in proper gas detectionand monitoring techniques.

5.2.2 Using the submenus.In the Main Menu and the sub-menus, use the upand down arrows to navigate between the optionsand press MODE to enter. Three buttons willappear on the display to show thefunctions of the MODE button and the twonavigation keys on any screen that allowsinstrument setup changes.

5.2.3 Alarms MenuThe Alarms Menu contains the following 6submenus (options in parenthesis). Descriptionfollows (as needed).

Current Alarms (select any sensor to viewcurrent sensor alarm settings, then select anycurrent sensor alarm to make changes)

Default Alarms (scroll to view default sensoralarms for each recognized sensor plusoption to Set Default Alarms for all sensors

Alarm Latch (set on or off)The PHD6s alarms are self-resettingunless the alarm latch is enabled. With thePHD6s alarm latch enabled, the audibleand visible alarms will continue to soundafter the atmospheric hazard has cleared.Press the MODE button to reset thealarms. If the alarm latch is disabled andthe alarm condition is no longer present,the instrument will automatically return tonormal operation, and the visible andaudible alarms cease without further inputfrom the user.

Temp Alarms (enable or disable high andlow temperature alarms)

If the operating temperature falls outside ofthe operating range of the PHD6, theinstrument will go into alarm and thethermometer icon will be shown on thedisplay.

Event History (use up and down arrows toscroll through saved alarm events includestime, duration and peak and average sensorreadings during the event)

Vibrator (if equipped) (enable or disable thevibrating alarm)

5.2.4 Calibration Menu Fresh Air Cal (initiates Fresh Air Calibrationsequence)

Fresh air/zero calibrationsmay only be performed in an atmosphere that

is known to contain 20.9% oxygen, 0.0% LELand 0 PPM toxic gas.

Gas Calibration (initiates Gas Calibrationsequence (calibration gas required))

O 2 Gas Cal (initiates true O 2 Zero Calibrationsequence)

Note that this procedure requires acylinder of calibration gas that contains0.0% oxygen.

Gas Values (select any sensor to view orchange current calibration gas values).Note: The selection of the calibration gasfor the PID sensor is NOT linked to thedisplayed substance. A ratio is used tocalculate readings for various VOCsagainst the calibration standard. Seesection 2.7 for more details on the PID gasvalues. Note: In the case of the oxygen sensor,the O 2 gas setting can be used to enableor disable the oxygen sensor check thattakes place during gas calibration with

multi calibration gas. To disable theoxygen sensor check, select No.Disabling

the oxygen sensor checkmay result in the failure torecognize an oxygen-deficient atmosphere.

Always use a multi calgas cylinder containing18% oxygen tocalibrate the PHD6.

Reminders/Lock (access to submenusbelow)

Cal on Startup (enable or disable) When enabled, calibration isautomatically initiated whenever theinstrument is turned on. The calibrationcan be bypassed (unless Cal Due Lock isenabled) by letting the clock run out andproceeding to the current gas readingsscreen. Cal on Startup is usuallydisabled on new instruments and mustbe enabled by the user.

Cal Reminder: (adjust between every dayand every 180 days). The default setting

for standard instruments leaving the factoryis 30 days.

To disable the cal reminder, set the valueto 0.

Cal Lock: (enable or disable) Enable to require calibration when theCal Reminder is on. PHD6 automaticallyshuts down if Cal Lock is enabled, andcalibration is due but not performed. CalLock is usually disabled on newinstruments and must be enabled by theuser.


27/36

26

Bump Reminder: (enable, disable andadjust between every day and every 30days)

Used exclusively with the IQ6 Dock.Reminds the user to process theinstrument in the dock. To disable setthe value to 0. The Bump Reminder isusually disabled on new instruments andmust be enabled by the user.

Service Interval (enable, disable and

adjust between every day and every 730days (2 years)) The service interval is a reminder thattells the user when the instrument is duefor service. The Service Interval isusually disabled on new instruments andmust be enabled by the user.

Service Done (reset service date)Used to reset the service intervalfollowing instrument service.

Cal History (scroll through recentcalibrations, includes span reserve listing

which allows for predictive maintenance)5.2.5 Configuration Menu

Security Beep (enable or disable)Once enabled the PHD6 will emit a shortaudible beep and give a short flash on theLEDs at a user-defined interval to notify theuser that the instrument is powered up andrunning. The Security Beep is usuallydisabled on new instruments and must beenabled by the owner.

Basic Passcode (enable, disable andchange passcode)

Enable to require the entry of a passcodeto access the Basic Menu. The BasicPasscode is usually disabled on newinstruments and must be enabled by theowner. To permit access to the BasicMenu, and restrict it from the Main Menu,the Basic Passcode must differ from theMain Passcode.

Main Passcode (enable, disable and changepasscode)

Enable to require the entry of a passcodeto enter the Main Menu. The MainPasscode is usually disabled on newinstruments and must be enabled by theowner. The Main Passcode can be used toenter both the Main Menu and the BasicMenu.

Display Formats (contains submenus forsensor readings, sensor clamping andtemperature) Sensor readings (for toxic gases selectPPM (XX) or tenths-of-a-PPM (X.X) forsensors with this capability (such as H 2S).For NDIR-CH 4 choose between LEL andCH 4 (the CH 4 reading will display in

%/Vol.)). Sensors that cannot be adjustedwill show Fixed.

Temperature (select display in Celsius orFahrenheit) Most PHDs leave the factoryconfigured to read temperature inFahrenheit unless the customer requestsotherwise.

Language (select English, French orSpanish). Most PHDs leave the factoryconfigured in English unless the customer

requests otherwise. Date/Time (set time and date)

5.2.6 Screen Menu Contrast (screen contrast setting) Orientation (shifts display to be viewablefrom top or bottom of the instrument)

Backlight Mode (select continuous, TimedOff or Time Auto)

Select Continuous to have the backlighton at all times,Select Timed Off to require a MODE pressor an alarm condition to activate thebacklight. The default setting for most newPHD6 instruments when leaving the factoryis to turn the backlight off after 20 seconds.Select Time Auto to enable the automaticbacklight for low light conditions.

Backlight Time (set the time before thebacklight turns off in Time Off Mode)

Enable Screens (select the screens that areaccessible by sequentially pressing theMODE button including: Peak, Average,STEL and TWA screens.

5.2.7 Information Menu Versions (view instrument serial number,software version, and time and date ofinstrument manufacture)

Service Info (view Honeywell Analyticsphone contact numbers).

5.2.8 Datalogger Menu Interval (set datalogger interval between 1second and 1 hour) (menu option only notavailable in Black Box Datalogger versions)The datalogger samples continuously, so the

data stream must be broken into intervals tobe recorded. The datalogging interval definesthe frequency of the breaks in the datastream. The interval may be set anywherebetween one second and one hour by usingthe navigation arrows as detailed below. Thedefault datalogging interval is 1 minute. At aone-minute interval, the PHD6 will log aminimum of 63 hours of data before theoldest data is overwritten by newer data.

Sessions (view datalogger session dataincluding date, time, interval, temperature


28/36

27

and sensor minimum and maximumreadings)

Clear Datalog (clears all information from thedatalogger)

Select User (User name will be saved in thesession data)

Users names must be entered in BioTrak IIto appear in the user list.

Select Location (Location name will be

saved in the session data) Location names must be entered inBioTrak II to appear in the location list.

User on Startup (enable or disable a promptto select user and location at startup)

User and location names must be enteredinto the instrument via BioTrak II before thisoption can be enabled.

6. MaintenanceTo prevent ignition of

flammable or combustible atmospheres,disconnect power before servicing any partsin the PHD6.

6.1 BatteriesThe PHD6 is powered byinterchangeable alkalineand Li-Ion rechargeablebattery packs.To remove the battery packfirst loosen the top centerscrew on the back of theinstrument, then gently pullthe top of the battery awayfrom the instrument. The battery is hinged frombelow. Remove the battery once the top clearsthe upper housing by pulling up and away.CAUTION Always turn the PHD6 off prior toremoving the battery pack. Removal of thebattery pack with the instrument turned onmay cause corruption of stored data in thePHD6. Note: Center screw on ATEX / Europeanversion may be slightly different.

6.2 Replacing alkaline batteriesThe alkaline battery pack contains three AAalkaline batteries.

The PHD6 must be locatedin a non-hazardous location wheneveralkaline batteries are removed from thealkaline battery pack. Removal of the alkalinebatteries from the battery pack in a hazardousarea may impair intrinsic safety.

Use only Duracell MN1500or Ultra MX1500, Eveready Energizer E91-LR6,Eveready EN91 batteries. Substitution ofbatteries may impair intrinsic safety.


29/36

28

To replace the alkaline batteries:1. Remove the battery pack from the PHD6 as

discussed in above in section 6.1.2. Loosen the two screws at the top of the

battery pack by turning each turncounterclockwise.

3. Remove the three alkaline batteries andreplace them. Be sure to align the positiveand negative ends in accordance with thediagram under

each battery.4. Reinstall the back

cover plate thatwas removed instep 2.

5. Return the batterypack to the PHD6and re-tighten the top center screw. ThePHD6 will automatically turn itself on oncethe battery pack is reinstalled.

6.3 Maintaining Li-Ion battery packsThe PHD6 may be equipped with a rechargeable

Li-Ion (Lithium Ion) battery pack.

6.3.1 Storage guidelines for the Li-Ionbattery

Never store Li-Ion -version PHD6 instruments attemperatures above 30 degrees Celsius (86degrees Fahrenheit). Li-Ion batteries may sufferdeterioration resulting in damage to the internalcomponents when stored at high temperatures.The battery may be irretrievably damagedresulting in reduced battery capacity and voltage.Honeywell Analytics recommends leaving PHD6instruments with Li-Ion rechargeable batteries on

the charger when not in use.6.3.2 Charging guidelines for Li-Ion batteryThe Li-Ion battery in the PHD6 should never becharged at temperatures lower than 5 degreesCelsius (40 degrees Fahrenheit) or higher than30 degrees Celsius (86 degrees Fahrenheit.Charging at temperature extremes canpermanently damage the PHD6 Li-Ion battery.

The PHD6 must be locatedin a non-hazardous location during thecharging cycle. Charging the PHD6 in ahazardous location may impair intrinsicsafety.

6.3.3 Charging procedure for Li-Ion batteryDo not charge the PHD6

with any charger other than the appropriatePHD6 charger manufactured by HoneywellAnalytics. Standard versions of the PHD6must be charged with the UL/CSA-approvedcharger, which is part number 54-54-001.European versions of the PHD6 must becharged with the ATEX-approved PHD6charger.

1. Verify that the instrument is turned off. (If it isnot, press the MODE button for threeseconds until the message "Release Button"appears.)

2. Plug the power supply in. The red LED islabeled Power and will be lit whenever thecharger is plugged into a power source.

3. Insert the PHD6 into the charging cradlebottom side down with the display facingforward. The green LED on the charger is

labeled Charge and will blink while thebattery is charging.4. When the battery is fully charged, the green

Charge LED will be lit and not blinking.See section 5.3.4 for battery troubleshootingguidelines.

6.3.4 Charging with the pump attachedThe PHD6 with pump attached may be chargedaccording to the instruction given in section 6.3.3above.

6.3.5 Battery troubleshootingIf the green Charge LED on the charger fails tolight when the PHD6 with Li-Ion battery pack isplaced in the charger, remove the instrumentfrom the charger and press the MODE button toattempt to start the instrument.If the battery has been inserted into the chargerwithout the instrument, return it to the instrumentprior to attempting the restart.1. If the PHD6 starts and the battery icon if full,

then the battery is fully charged and may beused as is. In this case, the charger hasrecognized that the battery is charged andwill not charge it any further.

2. If the PHD6 fails to turn on, then the batterymay be severely discharged and should bereturned to the charger. The charger willthen begin a very slow recharge in order toprotect the battery. The green Charge LEDmay not be lit during the first four hours of theslow recharge. If the Charge LED has stillnot been lit after four hours, the battery packor charger is probably damaged.

3. If the PHD6 starts and any battery level otherthan full is indicated, then either the battery isdamaged or the charger is damaged. CallHoneywell Analytics for further instructions.

6.4 Sensors6.4.1 Sensor replacementThe sensors in the PHD6 are located in a ventedcompartment at the bottom of the instrument.To install a sensor:1. Turn the PHD6 off.2. Remove the battery pack as described in

section 6.1. This will automaticallydisconnect power from the instrument.


30/36

29

3. Remove the four screws that are locatedbelow the battery pack insertion from theback face of the PHD6.

4. Turn the instrument over to reveal the frontface and gently remove the sensor cover.

5. Remove the sensor that is to be replaced.6. Insert the new sensor into the appropriate

location on the sensor board.7. Reinstall the sensor cover by aligning it

properly over the sensors and securing it with

the four screws that were removed in step 3.8. Reattach the battery pack and re-tighten the

top center screw.9. New sensors must be allowed to stabilize

prior to use according to the followingschedule. The detector must be powered offand a functional battery pack must beinstalled for the sensor to stabilize.

Sensor Stabilization PeriodOxygen (O 2) 1 hour

LEL nonePID 5 minutes

NDIR-CH 4 orNDIR-CO 2 1 minute

All Toxic Sensorsexcept NO 15 minutes

NO (nitric oxide) 24 hours

Note: Steps 9 and 10 assume that the sensorstabilization period has passed.10. Perform the Fresh Air/Zero calibration and

the Gas calibration as discussed in sections4.2 and 4.3.

6.4.2 Care and maintenance of PID sensorsThe two critical

components of a PIDsensor are theelectrode stack andthe lamp. Theelectrode stack can bereplaced in the field. The lamp can be cleaned orreplaced in the field. The frequency ofmaintenance to both items will vary with the typeof usage and the nature of the contaminants towhich the sensor is exposed.

As a general rule, baseline shifts tend to becaused by the electrode stack and losses ofsensitivity tend to be caused by the lamp.

6.4.2.1 Troubleshooting the PIDWhen to replace the electrode stack:1. Baseline read

Documents

PhD6 Manual - English - 13-322