Pfeiffer TPG 261 Single Gauge - Ideal Vacuum … (505)872-0037 idealvac.com ... 3.4 Gauge Connector sensor 20 3.5 control Connector 21 3.6 relay Connector 22 3.7 Interface Connector

Operating InstructionsIncl. Declaration of Conformity

BG 805 195 BE / B (2004-08) 1

SingleGauge™Single-Channel Measurement andControl Unit for Compact Gauges

TPG 261

VACUUM

(505)872-0037idealvac.com

idealvac.com

www.idealvac.com

2 BG 805 195 BE / B (2004-08) TPG261.oi

In all communications with Pfeiffer Vacuum, pleasespecify the information on the product nameplate. Forconvenient reference copy that information into thespace provided below.

Typ: No: F-No: V Hz VA

Pfeiffer Vacuum, D-35614 Asslar

This document applies to products with part numberPTG28030.

The part number (No.) can be taken from the productnameplate.

This manual is based on firmware version 302-510-A.

If your unit does not work as described in this document,please check that it is equipped with the above firmware

version ( 57).

We reserve the right to make technical changes withoutprior notice.

All dimensions are indicated in mm.

Product Identification

Validity

BG 805 195 BE / B (2004-08) TPG261.oi 3

The TPG 261 is used together with Pfeiffer VacuumCompact Gauges (in this document referred to asgauges) for total pressure measurement. All productsmust be operated in accordance with their respectiveOperating Instructions.

The scope of delivery consists of following parts:

1 TPG 261 Single-Channel Measurement and ControlUnit

1 Power cord

1 Connector for control connection

4 Collar screws and plastic sleeves

2 Rubber feet

1 Rubber bar

1 Operating Instructions (this document)

1 Betriebsanleitung

SingleGauge™ INFICON AGFullRange™ INFICON GmbH

Intended Use

Scope of Delivery

Trademarks

4 BG 805 195 BE / B (2004-08) TPG261.oi

Contents

Product Identification 2Validity 2Intended Use 3Scope of Delivery 3Trademarks 3

1 Safety 61.1 Symbols Used 61.2 Personnel Qualifications 71.3 General Safety Instructions 71.4 Liability and Warranty 8

2 Technical Data 9

3 Installation 143.1 Personnel 143.2 Installation, Setup 143.2.1 Rack Installation 143.2.2 Installation in a Control Panel 173.2.3 Use as Desk-Top Unit 183.3 Mains Power Connector 193.4 Gauge Connector sensor 203.5 control Connector 213.6 relay Connector 223.7 Interface Connector RS232 23

4 Operation 244.1 Front Panel 244.2 Turning the TPG 261 On and Off 254.3 Operating Modes 264.4 Measurement Mode 274.5 Parameter Mode 314.5.1 Switching Function Parameters 334.5.2 Gauge Parameters 374.5.3 Gauge Control 464.5.4 General Parameters 514.5.5 Test Parameters 55

BG 805 195 BE / B (2004-08) TPG261.oi 5

5 Communication (Serial Interface) 645.1 RS232C Interface 645.1.1 Data Transmission 645.1.2 Communication Protocol 665.2 Mnemonics 685.2.1 Measurement Mode 695.2.2 Parameter Mode 755.2.2.1 Switching Function Parameters 755.2.2.2 Gauge Parameters 765.2.2.3 Gauge Control 805.2.2.4 General Parameters 815.2.2.5 Test Parameters 825.2.3 Example 88

6 Maintenance 89

6 Troubleshooting 90

8 Repair 91

9 Storage 92

10 Disposal 92

Appendix 93A: Conversion Tables 93B: Default Settings 94C: Firmware Update 95D: Literature 98E: Index 100

Declaration of Conformity 102

For cross-references within this document, the symbol( XY) is used, for cross-references to further docu-ments, listed under "Literature", the symbol ( [Z]).

6 BG 805 195 BE / B (2004-08) TPG261.oi

1 Safety

DANGER

Information on preventing any kind of physical injury.

WARNING

Information on preventing extensive equipment andenvironmental damage.

Caution

Information on correct handling or use. Disregard canlead to malfunctions or minor equipment damage.

The lamp/display is lit.

The lamp/display flashes.

The lamp/display is dark.

Press the key (example: PARA key).

Do not press any key.

1.1 Symbols Used

Symbols for residualrisks

Further symbols

BG 805 195 BE / B (2004-08) TPG261.oi 7

Skilled personnel

All work described in this document may only be car-ried out by persons who have suitable technical train-ing and the necessary experience or who have beeninstructed by the end-user of the product.

Adhere to the applicable regulations and take the nec-essary precautions for all work you are going to do andconsider the safety instructions in this document.

DANGER

Caution: mains voltage

Contact with live parts is extremely hazardouswhen any objects are introduced or any liq-uids penetrate into the unit.

Make sure no objects enter through the lou-vers and no liquids penetrate into the equip-ment.

Communicate the safety instructions to all other users.

1.2 PersonnelQualifications

1.3 General SafetyInstructions

8 BG 805 195 BE / B (2004-08) TPG261.oi

Pfeiffer Vacuum assumes no liability and the warrantybecomes null and void if the end-user or third parties

disregard the information in this document

use the product in a non-conforming manner

make any kind of interventions (modifications, altera-tions etc.) on the product

use the product with accessories not listed in the cor-responding product documentation.

1.4 Liability andWarranty

BG 805 195 BE / B (2004-08) TPG261.oi 9

2 Technical Data

Voltage 90 … 250 VAC

Frequency 50 … 60 Hz

Power consumption 45 W

Overvoltage category II

Protection class 1

Connection European appliance connec-tor IEC 320 C14 ( 19)

Temperaturestorageoperation

–20 … +65 °C+ 5 … +50 °C

Relative humidity 80% up to +31 °C,decreasing to 50% at +40 °C

Use indoors onlymax. altitude 2000 m NN

Pollution degree II

Protection type IP30

Number 1

CompatibleCompact Gauges

Pirani

Pirani CapacitanceCold CathodeFullRange™ CCProcess IonFullRange™ BACapacitancePiezo

TPR 261, TPR 265, TPR 280,TPR281PCR 260IKR 251, IKR 261, IKR 270PKR 251, PKR 261IMR 265PBR 260CMR 261 … CMR 275APR 250 … APR 267

Number 1

sensor connector Amphenol C91B applianceconnector, female, 6-pole(pin assignment 20)

Mains specifications

Ambiance

Compatible gauges

Gauge connections

10 BG 805 195 BE / B (2004-08) TPG261.oi

Voltage +24 VDC 5%

Current 750 mA

Power 18 W

Fuse protection 900 mA with PTC element,self-resetting after turning theTPG 261 off or disconnectingthe gauge. The supply con-forms to the requirements of agrounded protective extra lowvoltage (SELV-E according toEN 61010).

Front panelRemote control

via 3 keysvia RS232C interface

Measurement range depending on gauge

( [1] … [14])

Measurement errorgain erroroffset error

0.01% F.S.

0.01% F.S.

Measurement rate 50 / s

Display rate 10 / s

Filter time constantslownormal (nor)fast

1.2 s (fg = 0.13 Hz)400 ms (fg = 0.4 Hz) 20 ms (fg = 8 Hz)

Measurement units mbar, Pa, Torr

Offset correction for linear gauges–5 … 110% F.S.

Calibration factor for logarithmic gauges0.10 … 9.99

for linear gauges0.500 … 2.000

A/D converter resolution 0.001% F.S.

Gauge supply

Operation

Measurement values

BG 805 195 BE / B (2004-08) TPG261.oi 11

Number 2

Reaction delay 20 ms if switching thresholdclose to measurement value(for larger differences con-sider filter time constant)

Adjustment range depending on gauge

( [1] … [14])

Hysteresis 1% F.S. for linear gauges,

10% of measurement valuefor logarithmic gauges

Contact type floating changeover contact

Load max. 30 VAC, 30 W (ohmic)60 VDC, 1 A, 30 W (ohmic)

Service lifemechanicelectric

5×107 cycles

1×105 cycles (at max. load)

Contact positions 22

Relay connector D-Sub appliance connector,female, 15-pole

(pin assignment 22)

Number 1

Reaction time 20 ms

Contact type floating normally open contact

Load max. 30 VAC, 30 W (ohmic)60 VDC, 1 A, 30 W (ohmic)

Service lifemechanicelectric

5×107 cycles

1×105 cycles (at max. load)

Contact positions 21

Control connector Amphenol C91B applianceconnector, female, 7-pole

(pin assignment 21)

Switching functions

Switching function relays

Error signal

Error signal relay

12 BG 805 195 BE / B (2004-08) TPG261.oi

Manualvia keysactivation/deactivation ( 28, 48, 49)

Externalvia control connectorON conditionOFF condition

signal +0.8 VDCsignal +2.0 … 5 VDC or inputopen

Hotstartwhen mains power on ( 48)

Self controldeactivation whenpressure risesOFF threshold adjustable ( 50)


(pin assignment 21)

Number 1

Voltage range 0 … +10 VDC

Internal resistance 660

Measuring signal vs.pressure

depending on gauge

( [1] … [14])


(pin assignment 21)

Standard RS232C

Protocol ACK/NAK, ASCII with3-character mnemonics,bi-directional data flow,8 data bits, no parity bit,1 stop bit

RS232C only TXD and RXD used

Transmission rate 9600, 19200, 38400 baud

RS232 connector D-Sub appliance connector,male, 9-pole

(pin assignment 23)

Gauge control

Analog output

Interface

BG 805 195 BE / B (2004-08) TPG261.oi 13

228.5 2.5

310

111.6

68.1

VACUUM

ø3.555.9

70.8

122.5

128.5

For incorporation into a rack or control panel or as desk-top unit.

1.1 kg

Dimensions [mm]

Use

Weight

14 BG 805 195 BE / B (2004-08) TPG261.oi

3 Installation

Skilled personnel

The unit may only be installed by personswho have suitable technical training and thenecessary experience or who have been in-structed by the end-user of the product.

The TPG 261 is suited for incorporation into a 19" rackor a control panel or for use as desk-top unit.

DANGER

Caution: damaged product

Putting a damaged product into operation canbe extremely hazardous.

In case of visible damages, make sure theproduct is not put into operation.

The TPG 261 is designed for installation into a 19" rackchassis adapter according to DIN 41 494. For this pur-pose, four collar screws and plastic sleeves are suppliedwith it.

DANGER

Caution: protection class of the rack

If the product is installed in a rack, it is likelyto lower the protection class of the rack(protection against foreign bodies and water)e.g. according to the EN 60204-1 regulationsfor switching cabinets.

Take appropriate measures for the rack tomeet the specifications of the protectionclass.

3.1 Personnel

3.2 Installation, Setup

3.2.1 Rack Installation

BG 805 195 BE / B (2004-08) TPG261.oi 15

In order to reduce the mechanical strain on the frontpanel of the TPG 261, preferably equip the rack chassisadapter with a guide rail.

For safe and easy installation of heavy rack chassisadapters, preferably equip the rack frame with slide rails.

Guide rail

Slide rails

16 BG 805 195 BE / B (2004-08) TPG261.oi

Secure the rack adapter in the rack frame.

The admissible maximum ambient tem-

perature ( 9) must not be exceededneither the air circulation obstructed.

Rack chassis adapterHeight 3 U

Slide the TPG 261 into the rack chassis adapter …

… and fasten the adapter panel to the rack chas-sis adapter using the screws supplied with theTPG 261.

Height 3 U rackchassis adapter

BG 805 195 BE / B (2004-08) TPG261.oi 17

DANGER

Caution: protection class of the control panel

If the product is installed in a control panel, itis likely to lower the protection class of thecontrol panel (protection against foreignbodies and water) e.g. according to theEN 60204-1 regulations for switching cabi-nets.

Take appropriate measures for the controlpanel to meet the specifications of the pro-tection class.

For mounting the TPG 261 into a control panel, the fol-lowing cut-out is required:

M3 or ø 3.5

122.5

113

70

55.9

The admissible maxi-mum ambient tem-

perature ( 9) mustnot be exceeded nei-ther the air circulationobstructed.

For reducing the mechanical strain on the front panel,preferably support the unit.

3.2.2 Installation in a

Control Panel

18 BG 805 195 BE / B (2004-08) TPG261.oi

Slide the TPG 261 into the cut-out of the control

panel …

… and secure it with four M3 or equivalent screws.

The TPG 261 is also suited for use as desk-top unit. Forthis purpose, two self-adhesive rubber feet as well as aslip-on rubber bar are supplied with it.

Stick the two supplied rubber feet to the rear part

of the bottom plate …

… and slip the supplied rubber bar onto the bot-tom edge of the front panel.

3.2.3 Use as Desk-Top

Unit

BG 805 195 BE / B (2004-08) TPG261.oi 19

Select a location where the admissible maxi-

mum ambient temperature ( 9) is not ex-ceeded (e.g. due to sun irradiation).

DANGER

Caution: line voltage

Incorrectly grounded products can be ex-tremely hazardous in the event of a fault.

Use only a 3-conductor power cable withprotective ground. The power connector mayonly be plugged into a socket with a protec-tive ground. The protection must not be nulli-fied by an extension cable without protectiveground.

The unit is supplied with a power cord. If the mains con-nector is not compatible with your system, use your own,suitable cable with protective ground (3 1.5 mm

3).

The socket must be

fuse-protected with10 Amax

If the unit is installed in a switching cabinet, the mainsvoltage should be supplied and turned on via a centraldistributor.

3.3 Mains PowerConnector

20 BG 805 195 BE / B (2004-08) TPG261.oi

Do not unfastenthis screw

(internal groundprotection)

Connect the gauge to the sensor connector viaa sensor cable set available from us ( salesliterature) or your own, screened (electromag-netic compatibility) sensor cable. Make sure thegauge you are connecting is compatible

( 9).

Pin assignment ofthe female 6-poleAmphenol C91B ap-pliance connector:

1

2

3

4

56

1 2

5 4

6 3

Pin Signal

1 6 2 3 4 5

IdentificationSupply +24 VDCSupply common GNDSignal input (measuring signal+)Signal common (measuring signal–)Screening

3.4 Gauge Connectorsensor

Pin assignmentsensor

BG 805 195 BE / B (2004-08) TPG261.oi 21

This connector allows to read the measuring signal, toevaluate the state of the floating contacts of the error

relay, and to activate or deactivate the gauge ( 46).

Connect the peripheral components to thecontrol connector on the rear of the unit usingyour own, screened (electromagnetic compati-bility) cable.

Pin assignment ofthe female 7-poleAmphenol C91B ap-pliance connector:

13

25

4

67

8

6 4

7 5

8 2

1

3

Pin Signal

2

5

4

1, 6

Analog output gauge 0 … +10 VDC

Screening GND

Gauge on signal +0.8 VDCoff signal +2.0 … 5 VDC or input open

Not assigned

3 7 No error

Error or powersupply turned off

A suitable connector is supplied with the TPG 261.

3.5 control Connector

Pin assignmentContact positionscontrol

22 BG 805 195 BE / B (2004-08) TPG261.oi

This connector allows to use the floating switching con-tacts for an external control system.

Connect the peripheral components to the relayconnector on the rear of the unit using yourown, screened (electromagnetic compatibility)cable.

Pin assignment ofthe female 15-poleD-Sub applianceconnector:

15

9

8

1

Pin Signal

Switching function 1

4 3 2

Pressure belowthreshold

Pressure abovethreshold or powersupply turned off

Switching function 2

7 6 5

Pressure belowthreshold

Pressure abovethreshold or powersupply turned off

9 … 14 Not connected

Supply for relays with higher switching power

15 1 8

+24 VDC, 200 mAGNDGND

Fuse-protected at 300 mA with PTCelement, self-resetting after poweroff or pulling the relay connector.Meets the requirements of agrounded protective extra low volt-age (SELV-E according toEN 61010).

3.6 relay Connector

Pin assignmentContact positionsrelay

BG 805 195 BE / B (2004-08) TPG261.oi 23

The RS232C interface allows for operating the TPG 261

via a HOST or terminal ( 64). It can also be used for

updating the firmware ( 95).

Connect the serial interface to the RS232 con-nector on the rear of the unit using your own,screened (electromagnetic compatibility) cable.

e.g. PC TPG 261

Chassis

2 RXDRXD

3 TXDTXD

5 GND

Chassis

GND

(Minimum configuration)

Pin assignment ofthe male 9-poleD-Sub applianceconnector:

5

1

9

6

Screening

Pin Signal Pin Signal

2 3 5

RXDTXDGND

1 6 9

not connectednot connectednot connected

4 7 8

DTRRTSCTS

Casing = screening

3.7 Interface ConnectorRS232

Pin assignmentRS232

24 BG 805 195 BE / B (2004-08) TPG261.oi

4 Operation

VACUUM

Degas activated

Measurement value in floating point orexponential format or status messages

Measurementunit

Parameter modeactivated

Warning/error(flashing)

Operator keys

Switching function status

Offset value 0

Correction factor 1

Gauge activated

No function

4.1 Front Panel

BG 805 195 BE / B (2004-08) TPG261.oi 25

Make sure the TPG 261 is correctly installed and thespecifications in the Technical Data are met.

The power switch is on therear of the unit.

Turn the TPG 261 on withthe power switch (or cen-trally, via a switched powerdistributor, if the unit is in-corporated in a rack).

After power on, the TPG 261 …

automatically performs a self-test

identifies the connected gauge

activates the parameters that were in effect beforethe last power off

switches to the Measurement mode

adapts the parameters if required (if another gaugewas previously connected).

Turn the TPG 261 off with the power switch (or centrally,via a switched power distributor, if the unit is incorpo-rated in a rack).

Wait at least 10 s before turning the TPG 261on again in order for it to correctly initialize it-self.

4.2 Turning theTPG 261 On and Off

Turning the TPG 261on

Turning the TPG 261off

26 BG 805 195 BE / B (2004-08) TPG261.oi

The TPG 261 works in the following operating modes:

Measurement modefor displaying measurement values or statuses

( 27)

Parameter mode

for displaying or editing parameters ( 31)

Switching function parameter group

for entering or displaying thresholds ( 33)

Gauge parameter group for entering or displaying gauge parameters

( 37)

Gauge control group for entering or displaying gauge control parame-

ters ( 46)

General parameter group for entering or displaying general parameters

( 51)

Test program group

for running internal test programs ( 55)

Program transfer mode

for updating the firmware ( 95)

4.3 Operating Modes

BG 805 195 BE / B (2004-08) TPG261.oi 27

The Measurement mode is the standard operating modeof the TPG 261. Measurement values and statuses aswell as the gauge identification are displayed in thismode.

Parameter

mode

>10 s

Measurement mode

Status

Power on

Measurement value

Gauge identification

depending

on history

4.4 Measurement Mode

28 BG 805 195 BE / B (2004-08) TPG261.oi

Certain gauges can be turned on and off manually, if the

gauge control is set to ( 49).

Available for:Pirani Gauge (TPR)

Pirani Capacitance Gauge (PCR)

Cold Cathode Gauge (IKR)

FullRange™ CC Gauge (PKR)

Process Ion Gauge (IMR)

FullRange™ BA Gauge (PBR)

Capacitance Gauge (CMR)

Piezo Gauge (APR)

Press key >1 s:The gauge isturned off.

is dis-played instead ofthe measurementvalue.

Press key >1 s:The gauge isturned on. A statusmessage may bedisplayed insteadof the measure-ment value.

Turning the gauge onand off

BG 805 195 BE / B (2004-08) TPG261.oi 29

Pre

ssure

p

Measure

ment

range

30 BG 805 195 BE / B (2004-08) TPG261.oi

Press keys >0.5 s:The type of the connectedgauge is automatically iden-tified and displayed for 4 s:

Pirani Gauge(TPR 261, TPR 265, TPR 280,TPR 281)

Pirani Capacitance Gauge1)

(PCR 260)

Cold Cathode Gauge(IKR251, IKR261)

Cold Cathode Gauge(IKR270)

FullRange™ CC Gauge(PKR251, PKR261)

Process Ion Gauge(IMR265)

FullRange™ BA Gauge(PBR260)

Capacitance Gauge(CMR261 … CMR275)

Piezo Gauge(APR250 … APR267)

No gauge connected(no Sensor)

Connected gauge cannot beidentified (no Identifier)

1) TPR and PCR have identical identifiers. In

the TPG 261, there is no distinction made onthe display and in data evaluation, since pres-sure ranges of these gauges are approximatelythe same.

31

Displaying the gaugeidentification

Getting to theParameter mode

BG 805 195 BE / B (2004-08) TPG261.oi 31

The Parameter mode is used for displaying, editing andentering parameter values as well as for testing theTPG 261. For ease of operation, the parameters are di-vided into groups.

Power on

Parameter mode

depending

on history

Switching function parameters

Gauge parameters

Gauge control

General parameters

Test parameters

>10 s

Measurement

mode

4.5 Parameter Mode

32 BG 805 195 BE / B (2004-08) TPG261.oi

Switching function parame-

ters 33

Gauge parameters 37

Gauge control 46General parameters

51Test parameters

55

Modifications of parameters come into effect immedi-ately and are stored automatically. Exceptions are men-tioned under the corresponding parameters.

Selecting a parametergroup

Selecting a parameterin a parameter group

Editing a parameter ina parameters group

BG 805 195 BE / B (2004-08) TPG261.oi 33

The switching function parameter

group (setpoint parameters) isused for displaying, entering andediting threshold values of the twoswitching functions.

Measurm

ent m

ode

Parameter modedependingon history

Switching function 1 lower threshold

Switching function 1 upper threshold

Switching function 2 lower threshold

Swiching function 2 upper threshold

>10 s

4.5.1 Switching

Function

Parameters

34 BG 805 195 BE / B (2004-08) TPG261.oi

The TPG 261 has two switching functions with two ad-justable thresholds each. The status of the switching

function is displayed on the front panel ( 24, 21) andcan be evaluated via the floating contacts at the relayconnector.

Pre

ssure

pS

witchin

g

function

On Off

Time t

Off

2

3

4

2

3

4

2

3

4

Dis

pla

y

Measurement value

The name of the parameter,

e.g.:Switching function 1lower setpoint

is displayed as long as thekey is pressed or at least for1.5 s.

Afterwards, the currentlyvalid threshold value is dis-played.

Selecting a parameter

BG 805 195 BE / B (2004-08) TPG261.oi 35

Press key <1 s:The value is increased/decreased by 1 increment.

Press key >1 s:The value is increased/decreased continuously.

Value

The lower switching threshold(Setpoint low) defines the pres-sure at which the switching func-tion is activated when the pres-sure is dropping.

e.g.:

Gauge dependent ( table).

If another gauge type is con-nected, the TPG 261 automati-cally adjusts the switchingthreshold if required.

low

er

thre

shold

limit

uppe

rth

reshold

limit

1×10-2

1000

5×10-4

1×10-9

1×10-6

10005×10-10

all values in mbar, CAL=1

1×10-21×10-11

10001×10-9

1500

F.S. / 1000 F.S.

Editing the thresholdvalue

Limits of the lowerswitching thresholds

36 BG 805 195 BE / B (2004-08) TPG261.oi

The minimum hysteresis between the upperand lower switching threshold is at least 10% ofthe lower threshold or 1% of the set full scalevalue. If the value of the minimum hysteresisdrops below these values, the upper thresholdis automatically adjusted to a minimum hystere-sis. This prevents unstable states.

Value

The upper switching threshold(Setpoint high) defines the pres-sure at which the switching func-tion is deactivated when the pres-sure is rising.

e.g.:

Gauge dependent ( table).

If another gauge type is con-nected, the TPG 261 automati-cally adjusts the threshold ifrequired.

+10% lower threshold

low

er

thre

sh

old

1500

1×10-2

1000




1000

all values in mbar, CAL=1

uppe

rth

ers

hold

limit

low

er

thre

sh

old

limit

1×10-2+10% lower threshold

1000+10% lower threshold

F.S.+1% measurement

range (F.S.)

The minimum hysteresis between the upperand lower switching threshold is at least 10% ofthe lower threshold or 1% of the set full scalevalue. This prevents unstable states.

Limits of the upperswitching thresholds

BG 805 195 BE / B (2004-08) TPG261.oi 37

The Gauge parameter group

(sensor parameters) is used fordisplaying, entering and editingparameters of the connectedgauge.

Measure

ment m

ode

depending

on history

Filter time constant

Calibration factor

Measurement range

Offset

Penning Underrange Control

Degas

Parameter mode

>10 s

4.5.2 Gauge Parameters

38 BG 805 195 BE / B (2004-08) TPG261.oi


e.g.:Filter time constant


Afterwards, the currentlyvalid parameter value is dis-played.

Some parameters are not available for all gauges andthus not always displayed.

38 40 41 42 43 45

*) depending on pressure

*)

*)Ava

ilab

le f

or

The measurement value filter permits a better evaluationof unstable or disturbed measuring signals.

The measurement value filter does not affect

the analog output ( 21).


Measurement valuefilter

BG 805 195 BE / B (2004-08) TPG261.oi 39

Value

Fast:The TPG 261 responds quicklyto fluctuations of the measure-ment value. As a result, it willrespond faster to interferencein measured values.

Pressure p

Time t

Normal:Good relationship between re-sponse and sensitivity of thedisplay and the switching func-tions to changes in the meas-ured values.

Pressure p

Time t

Slow:The TPG 261 does not re-spond to small changes inmeasured values. As a result,it will respond more slowly tochanges in the measured val-ues.

Pressure p

Time t

40 BG 805 195 BE / B (2004-08) TPG261.oi

The value is increased/decreased by the defined in-crements.

The calibration factor allows the measured value to be

calibrated for other gases than N2 ( characteristiccurves in [1] … [12]).





Process Ion Gauge *)

(IMR)

FullRange™ BA Gauge **)

(PBR)


Piezo Gauge (APR)

*)only for pressures <1×10

-2 mbar.

**)only for pressures <1×10

-1 mbar.

Value

e.g.:

No correction

e.g.:

Measurement valuecorrected by a factorof 0.10 … 9.99(logarithmic gauges).

Measurement valuecorrected by a factorof 0.500 … 2.000(linear gauges).

Calibration factor

BG 805 195 BE / B (2004-08) TPG261.oi 41



For linear gauges, the full scale (F.S.) value has to bedefined according to the connected gauge type. Forlogarithmic gauges it is automatically recognized.








Piezo Gauge (APR)

Value

e.g.:

0.01 mbar0.1 mbar1 mbar10 mbar100 mbar1000 mbar2 bar5 bar10 bar50 bar

Conversion table

Appendix 93

The value is increased/decreased by the defined in-crements.

Measurement range(F.S.) of lineargauges

42 BG 805 195 BE / B (2004-08) TPG261.oi

The offset value is displayed and readjusted accordingto the actual measurement value (in the range of-5 +110% of the set full scale value).








Piezo Gauge (APR)

The offset correction affects:the displayed measurement valuethe displayed threshold value of the switching functions

the analog output at the control connector ( 21)

Value

Offset correctiondeactivated

e.g.:

Offset correctionactivated

Press key >1.5 s:The offset value is read-justed. The actual measure-ment value is accepted asnew offset value.

Reset the offset value.

When the offset correction is activated, the saved offsetvalue is subtracted from the actual measurement value.This allows measuring relative to a reference pressure.

When the zero of the gauge is readjusted, theoffset correction must be deactivated.

Offset correction

BG 805 195 BE / B (2004-08) TPG261.oi 43

Behavior in the event of an underrange with Cold Cath-ode Gauges (Penning underrange control).








Piezo Gauge (APR)

There is a number of possible causes of an underrange:

the pressure in the vacuum system is lower than themeasurement range

the measurement element has not ignited (yet)

the discharge has failed

a defect has occurred

Caution

Caution: relay is switching

An underrange can lead to unintended reac-tions of the connected control system.

Prevent false control signals and messagesby disconnecting the sensor and control ca-bles.

Underrange control

44 BG 805 195 BE / B (2004-08) TPG261.oi

Value

Underrange state is interpretedas admissible measurement

value. is displayed.The switching function remainsON.

Underrange state is interpretedas inadmissible measurement

value. is displayed.The switching functionchanges to OFF.

Activate/deactivate theunderrange control.

If chances are that the pressure in the vacuumsystem drops below the measurement range of

the gauge, it is advisable to select .

If is selected, the evaluation of theswitching function is suppressed for approx.10 seconds when the gauge is turned on andeach time after an underrange has occurred.During this time, the switching function remainsOFF.

BG 805 195 BE / B (2004-08) TPG261.oi 45

Contamination deposits on the electrode system of hotcathode gauges may cause instabilities of the measure-ment values. The Degas function allows to clean theelectrode system.






FullRange™ BA Gauge (PBR )


Piezo Gauge (APR)

Value

Normal operation.

Degas: The electroncollection grid isheated to 700 °C byelectron bombard-ment and the elec-trode system is thuscleaned.

Start degas.Duration of the Degas func-tion 3 min. (can be aborted).

Abort degas.

Degas

46 BG 805 195 BE / B (2004-08) TPG261.oi

The Gauge control group (control

parameters) is used for display-ing, entering and editing parame-ters which define the activation/deactivation of the connectedgauge.

If the connected gaugecannot be controlled

( 48), this group isnot available.

dependingon history

Gauge deactivation

OFF threshold

Parameter mode

>10 s

Gauge activation

Measure

ment m

ode

4.5.3 Gauge Control

BG 805 195 BE / B (2004-08) TPG261.oi 47


e.g.:Gauge activation



Some parameters are not available for all gauges andthus not always displayed.

48 49 50

Availa

ble

for


48 BG 805 195 BE / B (2004-08) TPG261.oi

Certain gauges can be activated by different means.

The following gauges can be controlled:Pirani Gauge (TPR)







Piezo Gauge (APR)

Value

Manual activation:The gauge can be activated by

pressing the key.

External activation:The gauge is activated by aninput signal fed via the control

connector ( 21).

Hotstart:The gauge is automatically ac-tivated when the TPG 261 isturned on. Measurement isthus automatically resumedafter a power failure. Gauge

deactivation 49.

Increase/decrease the valueby the defined increments.

Gauge activation

BG 805 195 BE / B (2004-08) TPG261.oi 49

Certain gauges can be deactivated by different means.

The following gauges can be controlled:Pirani Gauge (TPR)



FullRange™ CC Gauge *)

(PKRx)

Process Ion Gauge *)

(IMR)

FullRange™ BA Gauge *)

(PBR)

Capacitance Gauge (CMRx)

Piezo Gauge (APR)

*)except for self control

Value

Manual deactivation:The gauge is deactivated by

pressing the key.

External deactivation:The gauge is deactivated byan input signal fed via the

control connector ( 21).

Additionally for ColdCathode Gauge:

Self control:The gauge deactivates itselfwhen the pressure rises

( 50).


Gauge deactivation

50 BG 805 195 BE / B (2004-08) TPG261.oi

Definition of the OFF threshold for the gauge to be de-activated by itself (self control).



Cold Cathode Gauge (IKRx)





Piezo Gauge (APR)

Adjustment range

e.g.:

10-5

…10-2

mbar, CAL=1



OFF threshold

BG 805 195 BE / B (2004-08) TPG261.oi 51

The General parameter group

(general parameters) is used fordisplaying, entering and editinggenerally applicable system pa-rameters.

Measurement unit

Transmission rate

Display resolution

Default settings

Parameter mode

>10 s

depending

on historyM

easure

ment m

ode

4.5.4 General

Parameters

52 BG 805 195 BE / B (2004-08) TPG261.oi

The name of the parameter

e.g.:Measurement unit



The parameters are available for all gauge types andthus always displayed.

53 53 54 54

Availa

ble

for

all gauges



Editing a parameter

BG 805 195 BE / B (2004-08) TPG261.oi 53

Unit of measured values, thresholds etc. See Appendix

( 93) for conversion.

Value

mbar/bar

Torr (only available if

Torr lock is not activatedi.e. Torr is not

suppressed 58)

Pascal

Transmission rate of the RS232C interface.

Value

e.g.:

9600 baud19200 baud38400 baud

Measurement unit

Transmission rate

54 BG 805 195 BE / B (2004-08) TPG261.oi

Display resolution of measured values.

Value

Display

rounded to onedecimal digit

or two integrals

Display

rounded to twodecimal digits

or three inte-grals

All user parameter settings are replaced by the factorysettings.

Loading of the default parameter settings is ir-reversible.

Value

The default values are loaded

( 94).

Display resolution

Default settings

BG 805 195 BE / B (2004-08) TPG261.oi 55

The Test parameter group is usedfor displaying the firmware ver-sion, entering and editing specialparameter values, and for runningtest programs.

This group is only avail-

able if the key waspressed while theTPG 261 was turned on.

Measure

ment m

ode

Firmware version

Watchdog control

Keylock

RAM test program

RS232C test program

Parameter mode

Power

on

depending

on history

4.5.5 Test Parameters

56 BG 805 195 BE / B (2004-08) TPG261.oi

The name of the parameter

e.g.:Firmware version

is displayed.

The parameters are available for all gauge types andthus always displayed.

57 57 58 58A

vaila

ble

for

all

ga

uges

The name of the parameter is dis-played as long as the key is pressedor at least for 1.5 s.

The firmware version is continuously displayed.

59 59 60 60 61 61 62 63

Availa

ble

for

all

ga

uges

The name of the test program is displayed untilit is started.



Editing a parameter

BG 805 195 BE / B (2004-08) TPG261.oi 57

Start test program.

The firmware version (program version) is displayed.

Version

The two parts of the firmwarenumber are displayed alter-nately.

The last character indicates the modifi-cation index (-, A … Z). Please mentionthis index when contactingPfeiffer Vacuum in the event of a prob-lem.

Behavior of the system control (watchdog) in the eventof an error.

Setting

The system automatically ac-knowledges error messages ofthe watchdog after 2 s.

Error messages of the watch-dog have to be acknowledgedby the operator.

Starting the testprogram

Firmware version

Watchdog control

58 BG 805 195 BE / B (2004-08) TPG261.oi

The measurement unit can be suppressed in the

corresponding parameter setting ( 53).

Setting

Measurement unit avail-able.

Measurement unit notavailable.

The entry lock function prevents inadvertent entries inthe Parameter mode and thus malfunctions.

Setting

Entry lock function disabled.

Entry lock function enabled.

is displayed whenthe user attempts to edit a set-ting in the Parameter mode.

Torr lock

Keylock

BG 805 195 BE / B (2004-08) TPG261.oi 59

Test of the main memory.

Test sequence

The test runs automatically onetime:

Test in process (very briefly).

Test finished, no error found.

Test finished, error(s) found.

The lamp flashes.

If the error message persistsafter several test sequenceshave been run, please contactyour local Pfeiffer Vacuumservice center.

Test of the program memory.

Test sequence


Test in process

Test finished, no error found.After the test, a four-digitchecksum (hexadecimal for-mat) is displayed.

Test finished, error(s) found.After the test, a four-digitchecksum (hexadecimal for-

mat) is displayed. The lamp flashes.


RAM test

EPROM test

60 BG 805 195 BE / B (2004-08) TPG261.oi

Test of the parameter memory.

Test sequence


Test in process (very briefly).

Test finished, no error found.

Test finished, error(s) found.

The lamp flashes.


Test of the display.

Test sequence

The test runs automati-cally one time

*):

First, all display ele-ments are lit at thesame time, ...

:

... and then, each ele-ment is lit individually.

*)Stop the test sequenceand activate one elementafter another by pressingthe key once per element.

EEPROM test

Display test

BG 805 195 BE / B (2004-08) TPG261.oi 61

Test of channel 0 of the analog/digital converter (with areference voltage at the signal input of the sensor con-

nector ( 20)).

If the signal input is open, the TPG 261 dis-plays a default value that may easily fluctuatebecause of the high sensitivity of the openmeasurement circuit.

Test sequence

e.g.:

Measuring signal in Volt.

Test of channel 1 of the analog/digital converter (with areference voltage at the signal input of the sensor con-

nector ( 20)).

If the signal input is open, the TPG 261 dis-plays a default value that may easily fluctuatebecause of the high sensitivity of the openmeasurement circuit.

Test sequence

e.g.:

Gauge identification voltage.

No gauge connected.

A/D converter test 0


62 BG 805 195 BE / B (2004-08) TPG261.oi

Test of the relays of the TPG 261. The program teststheir switching function.

Caution

Caution: The relays switch irrespective of thepressure

Starting a test program may cause unwantedeffects in connected control systems.

Disconnect all sensor and control systemlines to ensure that no control commands ormessages are triggered by mistake.

The relays switch on and off cyclically. The switchingoperations are indicated optically and can be heard.

The contacts of the switching functions 1 … 4 are con-

nected to the relay connector ( 22), the contacts of

the error relay to the control connector ( 21) on therear of the housing. Check their function with an ohm-meter.

Test sequence


All relays deactivated

Switching function relay 1

Switching function relay 2

: No function

I/O test

BG 805 195 BE / B (2004-08) TPG261.oi 63

No function

Gauge relay

No function

Error relay

Test of the RS232C interface. The TPG 261 repeatseach sign transmitted by the communicating HOST.

The data transferred from/to the TPG 261 can

be displayed by the computer only ( 64).

Test sequence

The test runs automatically.

RS232C test

64 BG 805 195 BE / B (2004-08) TPG261.oi

5 Communication (Serial Interface)

The serial interface is used for communication betweenthe TPG 26x

1) and a computer. A terminal can be con-

nected for test purposes.

When the TPG 26x is put into operation, it starts trans-mitting measured values in intervals of 1 s. As soon asthe first character is transferred to the TPG 26x, theautomatic transmission of measured values stops. Afterthe necessary inquiries or parameter modifications havebeen made, the transmission of measured values can be

started again with the COM command ( 71).

Pin assignment of the 9-pole D-Sub connector and

RS232 interface cable 23.

The data transmission is bi-directional, i.e. data andcontrol commands can be transmitted in either direction.

1 start bit8 data bitsNo parity bit1 stop bitNo hardware handshake

1)Communication structure and procedures are identi-cal for both controllers TPG 261 and TPG 262.Therefore the term TPG 26x is used in this chapter.

5.1 RS232C Interface

Connection diagramconnection cable

5.1.1 Data Transmission

Data format

BG 805 195 BE / B (2004-08) TPG261.oi 65

The following abbreviations and symbols are used:

Symbol Meaning

HOST Computer or terminal

[...] Optional elements

ASCII American Standard Code for InformationInterchange

Dec. Hex.

<ETX> END OF TEXT (CTRL C)Reset the interface

3 03

<CR> CARRIAGE RETURNGo to beginning of line

13 0D

<LF> LINE FEEDAdvance by one line

10 0A

<ENQ>

ENQUIRYRequest for data transmission

5 05

<ACK> ACKNOWLEDGEPositive report signal

6 06

<NAK> NEGATIVE ACKNOWLEDGENegative report signal

21 15

"Transmit": Data transfer from HOST to TPG 26x"Receive": Data transfer from TPG 26x to HOST

After each ASCII string, the HOST must wait for a reportsignal (<ACK><CR><LF> or <NAK> <CR><LF>).

The input buffer of the HOST must have a capacity of atleast 32 bytes.

Definitions

Flow Control

66 BG 805 195 BE / B (2004-08) TPG261.oi

Messages are transmitted to the TPG 26x as ASCIIstrings in the form of mnemonic operating codes andparameters. All mnemonics comprise three ASCII char-acters.

Spaces are ignored. <ETX> (CTRL C) clears the inputbuffer in the TPG 26x.

HOST TPG 26x Explanation

Mnemonics[and parameters]

<CR>[<LF>]

Receives messagewith "end of mes-sage"

<ACK><CR><LF> Positive acknowledg-ment of a receivedmessage

When requested with a mnemonic instruction, theTPG 26x transmits the measurement data or parametersas ASCII strings to the HOST.

<ENQ> must be transmitted to request the transmissionof an ASCII string. Additional strings, according to thelast selected mnemonic, are read out by repetitivetransmission of <ENQ>.

If <ENQ> is received without a valid request, theERROR word is transmitted.

5.1.2 Communication

Protocol

Transmission format

Transmissionprotocol

Reception format

BG 805 195 BE / B (2004-08) TPG261.oi 67



<CR>[<LF>]


<ACK><CR><LF> Positive acknowledg-ment of a receivedmessage

<ENQ> Requests to transmitdata

Measurement values

or parameters<CR><LF>

Transmits data with"end of message"

: :

<ENQ> Requests to transmitdata

Measurement values

or parameters<CR><LF>

Transmits data with"end of message"

The strings received are verified in the TPG 26x. If anerror is detected, a negative acknowledgment <NAK> isoutput.



<CR>[<LF>]


***** Transmission or programming error *****

<NAK><CR><LF> Negative acknowl-edgment of a re-ceived message


<CR>[<LF>]


<ACK><CR><LF> Positive acknowl-edgment of a re-ceived message

Reception protocol

Error processing

Error recognitionprotocol

68 BG 805 195 BE / B (2004-08) TPG261.oi

ADC A/D converter test 85

BAU Baud rate (transmission rate) 81

COM Continuous mode 71

CAL Calibration factor 77

DCD Display control digits (display resolution) 81

DGS Degas 79

DIC Display control (display changeover) 82

DIS Display test 84

EEP EEPROM test 84

EPR EPROM test 84

ERR Error status 73

FIL Filter time constant (measurement value filter) 76

FSR Full scale range (measurement range of linear gauges) 77

IOT I/O test 86

LOC Keylock 83

OFC Offset correction (linear gauges) 78

OFD Offset display (linear gauges) 78

PNR Program number (firmware version) 82

PR1 Pressure measurement (measurement data) gauge 1 69

PR2 Pressure measurement (measurement data) gauge 2 69

PRX Pressure measurement (measurement data) gauge 1 and 2 70

PUC Penning underrange control (underrange control) 79

RAM RAM test 84

RES Reset 74

RST RS232 test 87

SAV Save parameters to EEPROM 82

SC1 Sensor control 1 (gauge control 1) 80

SC2 Sensor control 2 (gauge control 2) 80

SCT Sensor channel change (measurement channel change) 73

SEN Sensors on/off 72

SP1 Setpoint 1 (switching function 1) 75




SPS Setpoint status (switching function status) 76

TID Transmitter identification (gauge identification) 72

TKB Keyboard test (operator key test) 87

TLC Torr lock 83

UNI Pressure unit 81

WDT Watchdog control 83

5.2 Mnemonics

BG 805 195 BE / B (2004-08) TPG261.oi 69

Transmit: PRx <CR>[<LF>]

Measurement value x = 1 –> Gauge 1

2 –> Gauge 2

Receive: <ACK><CR><LF>Transmit: <ENQ>

Receive: x,sx.xxxxEsxx <CR><LF>

Measurement value 1)

[in current pressure unit]

Status, x =

0 –> Measurement data okay1 –> Underrange2 –> Overrange3 –> Sensor error4 –> Sensor off (IKR, PKR, IMR, PBR)5 –> No sensor (output: 5,2.0000E-2 [mbar])6 –> Identification error

1) Values always in exponential format.

For logarithmic gauges, the 3rd

and 4th decimal

are always 0.

5.2.1 Measurement

Mode

Measurement datagauge1 or 2

70 BG 805 195 BE / B (2004-08) TPG261.oi

Transmit: PRX <CR>[<LF>]


Receive: x,sx.xxxxEsxx,y,sy.yyyyEsyy <CR><LF>

Measurement

value gauge 2 1)

[in current

pressure unit]

Status gauge 2

Measurement value gauge 1 1)


Status gauge 1, x =




and 4th decimal

are always 0.

Measurement datagauges 1 and 2

BG 805 195 BE / B (2004-08) TPG261.oi 71

Transmit: COM [,x] <CR>[<LF>]

Mode x = 0 –> 100 ms

1 –> 1 s (default)2 –> 1 min.

Receive: <ACK><CR><LF>

<ACK> is immediately followed by the con-tinuous output of the measurement value inthe desired interval.

Receive: x,sx.xxxxEsxx,y,sy.yyyyEsyy <CR><LF>

Measurement

value gauge 2 1)

[in current

pressure unit]

Status gauge 2

Measurement value gauge 1 1)


Status gauge 1, x =




and 4th decimal

are always 0.

Continuous output ofmeasurement values(RS232)

72 BG 805 195 BE / B (2004-08) TPG261.oi

Transmit: SEN [,x,x] <CR>[<LF>]

Gauge 2, x =

0 –> No status change

1 –> Turn gauge off

2 –> Turn gauge on

Gauge 1


Receive: x,x <CR><LF>

Status gauge 2, x =

0 –> Gauge cannot be turned on/off

1 –> Gauge turned off

2 –> Gauge turned on

Status gauge 1

Transmit: TID <CR>[<LF>]



Identification gauge 2, x =

TPR (Pirani Gauge or

Pirani Capacitive gauge 1)

)

IKR9 (Cold Cathode Gauge 10-9

)

IKR11 (Cold Cathode Gauge 10-11

)

PKR (FullRange CC Gauge)

PBR (FullRange BA Gauge)

IMR (Pirani / High Pressure Gauge)

CMR (Linear gauge)

noSEn (no SEnsor)

noid (no identifier)

Identification gauge 1

1) TPR and PCR have identical identifiers.

There is no distinction made in communicationand in data evaluation, since pressure rangesof these gauges are approximately the same.

Turning a gaugeon/off

Gauge identification

BG 805 195 BE / B (2004-08) TPG261.oi 73

Transmit: SCT [,x] <CR>[<LF>]

Display channel, x =

0 –> Gauge 11 –> Gauge 2


Receive: x <CR><LF>

Display channel

Transmit: ERR <CR>[<LF>]


Receive: xxxx <CR><LF>

xxxx =

0000 –> No error1000 –> Error Controller error

(See displayon front panel)

0100 –> NO HWR No hardware0010 –> PAR Inadmissible

parameter0001 –> SYN Syntax error

The ERROR word is cancelled when read out.If the error persists, it is immediately set again.

Measurementchannel change

Error status

74 BG 805 195 BE / B (2004-08) TPG261.oi

Transmit: RES [,x] <CR>[<LF>]

x = 1 –> Cancels currently active

error and returns to measurement mode


Receive: [x]x,[x]x,... <CR><LF>

List of all present error messages,

xx = 0 –> No error 1 –> Watchdog has responded 2 –> Task fail error 3 –> EPROM error 4 –> RAM error 5 –> EEPROM error 6 –> DISPLAY error 7 –> A/D converter error 9 –> Gauge 1 error (e.g. filament

rupture, no supply)10 –> Gauge 1 identification error11 –> Gauge 2 error (e.g. filament

rupture, no supply)12 –> Gauge 2 identification error

Reset

BG 805 195 BE / B (2004-08) TPG261.oi 75

Transmit: SPx [,y,x.xxxxEsxx,x.xxxxEsxx] <CR>[<LF>]

Upper threshold 1)

[in current

pressure unit]

(default =

depending on

gauge)

Lower threshold 1)


(default = depending on

gauge)

Switching function assignment, y =

0 –> Meas. channel 1

1 –> Meas. channel 2

1 –> Switching function 1




1) Values can be entered in any format. They

are internally converted into the floating pointformat.


Receive: y,x.xxxxEsxx,x.xxxxEsxx <CR><LF>

Upper threshold

[in current

pressure unit]

Lower threshold


Switching function assignment

5.2.2 Parameter Mode

5.2.2.1 Switching

Function

Parameters

Threshold valuesetting, allocation

76 BG 805 195 BE / B (2004-08) TPG261.oi

Transmit: SPS <CR>[<LF>]


Receive: x,x,x,x <CR><LF>

Status switching function 4 1)




1) x = 0 –> off

1 –> on

Transmit: FIL [,x,x] <CR>[<LF>]

Gauge 2 x = 0 –> fast

1 –> medium

(default)

2 –> slow

Gauge 1



Filter time constant gauge 2

Filter time constant gauge 1

Switching functionstatus

5.2.2.2 Gauge Parameters

Measurement valuefilter

BG 805 195 BE / B (2004-08) TPG261.oi 77

Transmit: CAL [,x.xxx,x.xxx] <CR>[<LF>] ( )

Gauge 2

log. 0.100 ... 9.990

(default = 1.000)

lin. 0.500 ... 2.000

(default = 1.000)

Gauge 1


Receive: x.xxx,x.xxx <CR><LF>

Calibration factor gauge 2

Calibration factor gauge 1

The full scale value of the measurement range(Full Scale) of linear gauges has to be definedby the user; the full scale value of logarithmicgauges is automatically recognized.

Transmit: FSR [,x,x] <CR>[<LF>]

Gauge 2, x =

0 –> 0.01 mbar

1 –> 0.1 mbar

2 –> 1 mbar

3 –> 10 mbar

4 –> 100 mbar

5 –> 1000 mbar (default)

6 –> 2 bar

7 –> 5 bar

8 –> 10 bar

9 –> 50 bar

Gauge 1



Measurement range gauge 2

Measurement range gauge 1

Calibration factor

Measurement range(F.S.) oflinear gauges

78 BG 805 195 BE / B (2004-08) TPG261.oi

Transmit: OFC [,x,x] <CR>[<LF>] ( )

Gauge 2, x =

0 –> off (default)

1 –> on

2 –> auto (offset measurement)

Gauge 1



Gauge 2

Gauge 1

Transmit: OFD [,sx.xxxxEsxx,sx.xxxxEsxx] <CR>[<LF>]

Gauge 2 Offset 1)

[in current

pressure unit]

(default = 0.0000)

Gauge 1

1) Values can be entered in any format. They

are internally converted into the floating pointformat.


Receive: sx.xxxxEsxx,sx.xxxxEsxx <CR><LF>

Gauge 2

Gauge 1

Offset correction(linear gauges)

Offset display(linear gauges)

BG 805 195 BE / B (2004-08) TPG261.oi 79

Transmit: PUC [,x,x] <CR>[<LF>]

Gauge 2, x = 0 –> off (default)

1 –> on

Gauge 1



Gauge 2

Gauge 1

Transmit: DGS [,x,x] <CR>[<LF>] ( .)

Gauge 2, x =

0 –> Degas off (default)

1 –> Degas on (3 min.)

Gauge 1



Degas status gauge 2

Degas status gauge 1

Underrange control

Degas

80 BG 805 195 BE / B (2004-08) TPG261.oi

Transmit: SCx [,x,y,x.xxEsxx,y.yyEsyy] <CR>[<LF>]

OFF threshold

ON threshold

Controlling source for gauge

deactivation, x =

0 –> no control

1 –> automatic deactivation

2 –> manual deactivation

(default)

3 –> external deactivation

4 –> self control

Controlling source for gauge

activation, x =

0 –> no control

1 –> automatic activation

2 –> manual activation (default)

3 –> external activation

4 –> hot start

Controlled gauge, x =

1 –> Gauge 12 –> Gauge 2


Receive: x,y,x.xxEsxx,y.yyEsyy <CR><LF>

OFF threshold

ON threshold

Controlling source for

deactivating the gauge

Controlling source for activating the

gauge

5.2.2.3 Gauge Control

Gauge control

BG 805 195 BE / B (2004-08) TPG261.oi 81

Transmit: UNI [,x] <CR>[<LF>]

Pressure unit, x =

0 –> mbar/bar (default)1 –> Torr2 –> Pascal


Receive: x <CR><LF>

Pressure unit

Transmit: BAU [,x] <CR>[<LF>]

Transmission rate, x =

0 –> 9600 baud (default)1 –> 19200 baud2 –> 38400 baud

As soon as the new baud rate has been en-tered, the report signal is transmitted at the newtransmission rate.


Receive: x <CR><LF>

Transmission rate

Transmit: DCD [,x] <CR>[<LF>]

Resolution, x =

2 –> Display x.x (2 digits) (default)

3 –> Display x.xx (3 digits)


Receive: x <CR><LF>

Resolution

5.2.2.4 General

Parameters

Pressure unit

Transmission rate

Display resolution

82 BG 805 195 BE / B (2004-08) TPG261.oi

Transmit: SAV [,x] <CR>[<LF>]

x = 0 –> Save default

parameters1 –> Save user parameters

Receive: <ACK><CR><LF>

Transmit: DIC [,x] <CR>[<LF>]

Measurement display behavior

when a Pirani gauge or a Pirani Capacitance gauge is combinedwith a linear gauge with 1000 mbar F.S., x =0 –>manual (default)1 –>automatic


Receive: x <CR><LF>

Measurement display behavior

(For service personnel)

Transmit: PNR <CR>[<LF>]


Receive: 302-510-x <CR><LF>

-x = Modification index

(-- = original version)

Firmware number

Save parameters toEEPROM

Display changeover

5.2.2.5 Test Parameters

Firmware version

BG 805 195 BE / B (2004-08) TPG261.oi 83

Transmit: WDT [,x] <CR>[<LF>]

x = 0 –> Manual error

acknowledgement1 –> Automatic error

acknowledgement1)

(default)

1) If the watchdog has responded, the error is

automatically acknowledged and cancelled af-ter 2 s.


Receive: x <CR><LF>

Watchdog control

Transmit: TLC [,x] <CR>[<LF>]

x = 0 –> off (default)

1 –> on


Receive: x <CR><LF>

Torr lock status

Transmit: LOC [,x] <CR>[<LF>]

x = 0 –> off (default)

1 –> on


Receive: x <CR><LF>

Keylock status

Watchdog control

Torr lock

Keylock

84 BG 805 195 BE / B (2004-08) TPG261.oi

Transmit: RAM <CR>[<LF>]

Receive: <ACK><CR><LF>Transmit: <ENQ> Starts the test (duration <1 s)


ERROR word

Transmit: EPR <CR>[<LF>]

Receive: <ACK><CR><LF>Transmit: <ENQ> Starts the test (duration 5 s)

Receive: xxxx,yyyy <CR><LF>

Check sum (hex)

ERROR word

Transmit: EEP <CR>[<LF>]

Receive: <ACK><CR><LF>Transmit: <ENQ> Starts the test (duration <1 s)

Do not keep repeating the test (EEPROM life).


ERROR word

Transmit: DIS [,x] <CR>[<LF>]

x = 0 –> Stops the test – display

according to currentoperating mode (default)

1 –> Starts the test –all LEDs on


Receive: x <CR><LF>

Display test status

RAM test

EPROM test

EEPROM test

Display test

BG 805 195 BE / B (2004-08) TPG261.oi 85

Transmit: ADC <CR>[<LF>]


Receive: [x]x.xxxx,[x]x.xxxx,x.xxxx,x.xxxx <CR><LF>

ADC channel 4

identification

Gauge 2

[0.0000 ...

5.0000 V]

ADC channel 3

Gauge 1 identification

[0.0000 ... 5.0000 V]

ADC channel 2

Measurement signal

gauge 2

[0.0000 ... 11.0000 V]

ADC channel 1

Measurement signal gauge 1[0.0000 ... 11.0000 V]

ADC test

86 BG 805 195 BE / B (2004-08) TPG261.oi

Caution

Caution: The relays switch irrespective of thepressure.

Starting a test program may cause unwantedeffects in connected control systems.

Disconnect all sensor cables and controlsystem lines to ensure that no control com-mands or messages are triggered by mistake.

Transmit: IOT [,x,yy] <CR>[<LF>]

Relay status (in hex format), yy =

00 –> All relays deactivated

01 –> Switching function relay 1

activated


activated


activated


activated

10 –> Gauge relay CH1 activated

20 –> Gauge relay CH2 activated

40 –> Error relay activated

7F –> All relays activated

x = 0 –> Test stopped

1 –> Test runs


Receive: x,yy <CR><LF>

Relay status

I/O test status

I/O test

BG 805 195 BE / B (2004-08) TPG261.oi 87

Transmit: TKB <CR>[<LF>]



Key 4 x = 0 –> Not pushed1 –> Pushed

Key 3

Key 2

Key 1

Transmit: RST <CR>[<LF>]

Receive: <ACK><CR><LF>Transmit: <ENQ> Starts the test (repeats each

character, test is interruptedwith <CTRL> C)

Operator key test

RS232 test

88 BG 805 195 BE / B (2004-08) TPG261.oi

"Transmit (T)" and "Receive (R)" are related to Host.

S: TID <CR> [<LF>]E: <ACK> <CR> <LF>S: <ENQ>E: TPR,CMR <CR> <LF>

Request for gauge identificationPositive acknowledgementRequest for data transmissionGauge identifications

S: SEN <CR> [<LF>]E: <ACK> <CR> <LF>S: <ENQ>E: 0,0 <CR> <LF>

Request for gauge statusesPositive acknowledgementRequest for data transmissionGauge statuses

S: SP1 <CR> [<LF>]

E: <ACK> <CR> <LF>S: <ENQ>E: 0,1.0000E-09,9.0000E-07 <CR> <LF>

Request for parameters ofswitching function 1 (setpoint 1)Positive acknowledgementRequest for data transmissionThresholds

S: SP1,1,6.80E-3,9.80E-3 <CR> [<LF>]

E: <ACK> <CR> <LF>

Modification of parameters ofswitching function 1 (setpoint 1)Positive acknowledgement

S: FOL,1,2 <CR> [<LF>]

E: <NAK> <CR> <LF>S: <ENQ>E: 0001 <CR> <LF>

S: FIL,1,2 <CR> [<LF>]E: <ACK> <CR> <LF>S: <ENQ>E: 1,2 <CR> <LF>

Modification of filter time constant(syntax error)Negative acknowledgementRequest for data transmissionERROR wordModification of filter time constantPositive acknowledgementRequest for data transmissionFilter time constants

5.2.3 Example

BG 805 195 BE / B (2004-08) TPG261.oi 89

6 Maintenance

The product requires no maintenance.

For cleaning the outside of the TPG 261, a slightly moistcloth will usually do. Do not use any aggressive orscouring cleaning agents.

DANGER

Caution: mains voltage

Contact with live parts is extremely hazardouswhen liquids penetrate into the unit.

Make sure no liquids penetrate into theequipment.

Cleaning the TPG 261

90 BG 805 195 BE / B (2004-08) TPG261.oi

7 Troubleshooting

and the error relay opens ( 21).

Possible cause and remedy/acknowledgement

Interruption or instability in sensor lineor connector (Sensor error).

Acknowledge with the . key

If the problem persists, or

is displayed.


The TPG 261 has been turned on toofast after power off.

Acknowledge with the key.

If the watchdog is set to ,the TPG 261 acknowledges themessage automatically after 2 s

( 57).

The watchdog has tripped because ofa severe electric disturbance or an op-erating system error.


If the watchdog is set to ,the TPG 261 acknowledges themessage automatically after 2 s

( 57).


Main memory (RAM) error.



Program memory (EPROM) error.


Signalization of errors

Error messages

BG 805 195 BE / B (2004-08) TPG261.oi 91


Parameter memory (EEPROM) error.



Display driver error.



A/D converter error.



Operating system (Task Fail) error.


If the problem persists after the message has beenacknowledged for several times and/or the gaugehas been exchanged, please contact you localPfeiffer Vacuum service center.

8 Repair

Return defective products to your nearestPfeiffer Vacuum service center for repair.

Pfeiffer Vacuum assumes no liability and the warrantybecomes null and void if repair work is carried out by theend-user or third parties.

Technical support

92 BG 805 195 BE / B (2004-08) TPG261.oi

9 Storage

Caution

Caution: electronic component

Inappropriate storage (static electricity, hu-midity etc.) can damage electronic compo-nents.

Store the product in an antistatic bag or con-tainer. Observe the corresponding specifica-

tions in the technical data ( 9).

10 Disposal

N

WARNING

Caution: substances detrimental to the envi-ronment

Products or parts thereof (mechanical andelectric components, operating fluids etc.)can be detrimental to the environment.

Dispose of such substances in accordancewith the relevant local regulations.

After disassembling the product, separate its compo-nents according to the following criteria:

Such components must be separated according to theirmaterials and recycled.

Such components must be separated according to theirmaterials and recycled.

Separating thecomponents

Non-electroniccomponents

Electroniccomponents

BG 805 195 BE / B (2004-08) TPG261.oi 93

Appendix

kg lb slug oz

kg 1 2.205 68.522×10-3

35.274

lb 0.454 1 31.081×10-3

16

slug 14.594 32.174 1 514.785

oz 28.349×10-3

62.5×10-3

1.943×10-3

1

N/m2, Pa bar mbar Torr at

N/m2, Pa 1 10×10

-610×10

-37.5×10

-39.869×10

-6

bar 100×103

1 103

750.062 0.987

mbar 100 10-3

1 750.062×10-3

0.987×10-3

Torr 133.322 1.333×10-3

1.333 1 1.316×10-3

at 101.325×103

1.013 1.013×103

760 1

mbar Pascal Torr mmWs psi

mbar 1 100 750.062×10-3

10.2 14.504×10-3

Pascal 10×10-3

1 7.5×10-3

0.102 0.145×10-3

Torr 1.333 133.322 1 13.595 19.337×10-3

mmWs 9.81×10-2

9.81 7.356×10-2

1 1.422×10-3

psi 68.948 6.895×103

51.715 703 1

mm m inch ft

mm 1 10-3 39.37×10-3 3.281×10-3

m 103 1 39.37 3.281

inch 25.4 25.4×10-3 1 8.333×10-2

ft 304.8 0.305 12 1

Kelvin Celsius Fahrenheit

Kelvin 1 °C+273.15 (°F+459.67)×5/9

Celsius K-273.15 1 5/9×°F-17.778

Fahrenheit 9/5×K-459.67 9/5×(°C+17.778) 1

A: Conversion Tables

Weights

Pressures

Pressure units used inthe vacuum technology

Linear measures

Temperature

94 BG 805 195 BE / B (2004-08) TPG261.oi

The following values are activated when the default set-

tings are loaded ( 54):

1000 mbar

1.00 (log)

1.000 (lin)

normal

off

0×10-2 mbar

1×10-11 mbar

Default

off

mbar

9600

2 Digit

User

off

off

Auto

Hand

9×10-11 mbar

B: Default Settings

BG 805 195 BE / B (2004-08) TPG261.oi 95

If your TPG 261 firmware needs updating, e.g. forimplementing a new gauge type, please contactyour local Pfeiffer Vacuum service center.

Most of the settings you may have defined in the Pa-rameter and Test mode will not be affected by a firm-ware update. To be sure, note your parameter settings

before upgrading the firmware ( 94).

Turn the TPG 261 off.

Connect the TPG 261 with the serial COM1

(COM2) interface of your PC via a 9-pole D-Sub

extension cable ( 23) (the firmware of theTPG 261 cannot be loaded from a Mac).

With a pin (ø<2 mm), depress the switch on the

top of the unit, under the housing, and turn theTPG 261 on.

After power on, the display remains dark.

C: Firmware Update

User parameters

Preparing the TPG 261for a program transfer

96 BG 805 195 BE / B (2004-08) TPG261.oi

In the following instructions, the index is used insteadof the actual index.

Unpack the self extracting file

.

If you have not connected the TPG 261 to the

COM1 interface:

Open the batch file …

… edit the interface …

… and save the new setting.

Start batch file .

The new firmware is transmitted to the TPG 261.

Program transfer

BG 805 195 BE / B (2004-08) TPG261.oi 97

If the program transfer was successful, quit the Updatemode by turning the TPG 261 off.

Wait at least 10 s before turning the TPG 261on again in order for it to correctly initialize it-self.

The TPG 261 is now ready for operation. To besure, check that the current parameter settings areidentical with the previously defined settings

( 94).

Starting the TPG 261with the updated firm-ware

98 BG 805 195 BE / B (2004-08) TPG261.oi

[1] www.pfeiffer-vacuum.deInstruction SheetCompact Pirani Gauge TPR 261BG 805 105 BEPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[2] www.pfeiffer-vacuum.deOperating InstructionsCompact Pirani Gauge TPR 265BG 805 177 BEPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[3] www.pfeiffer-vacuum.deOperating InstructionsPirani-Messröhre TPR 280BG 805 178 BEPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[4] www.pfeiffer-vacuum.deOperating InstructionsPirani-Messröhre TPR 281BG 5179 BEPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[5] www.pfeiffer-vacuum.deOperating InstructionsCompact Pirani Capacitance Gauge PCR 260BG 805 180 BEPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[6] www.pfeiffer-vacuum.deInstruction SheetCompact Cold Cathode Gauge IKR 251BG 805 110 BNPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[7] www.pfeiffer-vacuum.deInstruction SheetCompact Cold Cathode Gauge IKR 261BG 805 113 BNPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

D: Literature

BG 805 195 BE / B (2004-08) TPG261.oi 99

[8] www.pfeiffer-vacuum.deInstruction SheetCompact Cold Cathode Gauge IKR 270BG 805 115 BE / APfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[9] www.pfeiffer-vacuum.deInstruction SheetCompact FullRange™ Gauge PKR 251BG 805 119 BNPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[10] www.pfeiffer-vacuum.deInstruction SheetCompact FullRange™ Gauge PKR 261BG 805 122 BNPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[11] www.pfeiffer-vacuum.deInstruction SheetCompact Process Ion Gauge IMR 265BG 805 132 BEPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[12] www.pfeiffer-vacuum.deInstruction SheetCompact FullRange™ BA Gauge PBR 260BG 805 131 BEPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[13] www.pfeiffer-vacuum.deInstruction SheetCompact Capacitance GaugeCMR 261 … CMR275BG 805 133 BEPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

[14] www.pfeiffer-vacuum.deInstruction SheetCompact Piezo Gauge APR 250 … APR 267BG 805 127 BNPfeiffer Vacuum GmbH, D–35614 Asslar,Deutschland

100 BG 805 195 BE / B (2004-08) TPG261.oi

– A –A/D converter test 61

– B –Baud rate 53

– C –Calibration factor 40

Cleaning 89

Communication 64

interface 64

Conformity 102

Connectors

control 21

mains power 19

relay 22

RS232 23

sensor 20

Contact positions

control 21

relay 22

Contents 4

control connector 21

Conversion 93

– D –Default settings 54; 94

Degas 45

Display

resolution 54

test 60

Disposal 92

– E –EEPROM test 60

EPROM test 59

Error messages 90

Example 88

– F –Factory settings 54; 94

Filter 38

Firmware

update 95

version 2; 57

– G –Gauge connector 20

Gauge control 46

gauge activation 48

gauge deactivation 49

OFF threshold 50

Gauge identification 30

Gauge parameters 37

calibration factor 40

Degas 45

measurement range 41

measurement value filter 38

offset 42

underrange control 43

General parameters 51

default settings 54

display resolution 54

measurement units 53

transmission rate 53

– I –I/O test 62

Identification of gauges 30

Intended Use 3

Interface

connector 23

test 63

transmission rate 53

– K –Keylock 58

– L –Liability 8

Literature 98

– M –Mains power connector 19

Maintenance 89

Measurement mode 27; 69

gauge identification 30

status messages 28

turning the gauge on/off 28

Measurement range 41

Measurement units 53

conversion 93

Measurement value filter 38

Mnemonics 68

E: Index

BG 805 195 BE / B (2004-08) TPG261.oi 101

– O –OFF threshold 50

Offset 42

Operating modes

Measurement mode 27

overview 26

Parameter mode 31

Program transfer mode 95

Operation

power off 25

power on 25

– P –Parameter mode 31; 75

Gauge control 46

Gauge parameters 37

General parameters 51

Switching functionparameters 33

Test parameters 55

Pin assignment

control 21

relay 22

RS232 23

Power connector 19

Power off 25

Power on 25

Pressure units 53

conversion 93

Program

update 95

version 2; 57

– R –RAM test 59

relay connector 22

Repair 91

RS232

connector 23

RS232C

test 63

– S –Safety 6

Scope of delivery 3

sensor connector 20

Serial interface

connector 23

Status messages 28

Storage 92

Switching functionparameters 33

Switching functions 22; 35; 36

Symbols 6

– T –Test parameters 55

Test program 55


display test 60

EEPROM test 60

EPROM test 59

firmware version 57

I/O test 62

keylock 58

RAM test 59

RS232C test 63

Torr lock 58

watchdog 58

Thresholds 35; 36

Torr lock 58

Transmission rate 53

Troubleshooting 90

– U –Underrange control 43

Units

conversion 93

Update 95

– V –Validity 2

– W –Warranty 8

Watchdog 58

102 BG 805 195 BE / B (2004-08) TPG261.oi

Declaration of Conformity

We, Pfeiffer Vacuum, hereby declare that the equipmentmentioned below complies with the provisions of the Di-rective relating to electrical equipment designed for usewithin certain voltage limits 73/23/EEC and the Directiverelating to electromagnetic compatibility 89/336/EEC.

SingleGauge™Single-Channel Measurement andControl Unit for Compact Gauges

TPG 261

PTG28030

Harmonized and international/national standards andspecifications:

EN 61010-1 (Safety requirements for electrical equipment

for measurement, control and laboratory use)

EN 50081-1 (Electromagnetic compatibility generic emission

standard)

EN 50082-2 (Electromagnetic compatibility generic immunity

standard)

Pfeiffer Vacuum GmbH, Asslar

9 May 2001

Wolfgang DondorfManaging director

Product

Part number

Standards

Signature

BG 805 195 BE / B (2004-08) TPG261.oi 103

Notes

Berliner Strasse 43D–35614 AsslarDeutschlandTel +49 (0) 6441 802-0Fax +49 (0) 6441 802-202

Original: German BG 805 195 BD / B (2004-08) [email protected]

bg805195be/ b www.pfeiffer-vacuum.de

Documents

Pfeiffer TPG 261 Single Gauge - Ideal Vacuum … (505)872-0037 idealvac.com ... 3.4 Gauge Connector sensor 20 3.5 control Connector 21 3.6 relay Connector 22 3.7 Interface Connector