BOD Measurement - Thermo Fisher Scientific

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Wissenschaftlich-Technische Werkstätten GmbH & Co. KG · Dr.-Karl-Slevogt-Straße 1 · 82362 Weilheim · Germany · Tel.: +49 (0)881-183-0 · Fax: +49 (0)881-62539

BODMeasurement

BOD measurement according to EN 1899-1 and EN 1899-2

and for self-checks

The Biological Oxygen Demand is an important parameter in water resource manage-ment. It is a quantity used for the quality of water and the purification power ofbiological wastewater treatment stages. In addition it is essential in the planningand dimensioning of sewage treatment plants.

In routine use BOD determination is used to check the wastewater in the inflow anddischarge of sewage treatment plants. Depending on the measurement site and typeof wastewater the BOD value can lie between a few mg/l and several thousand mg/l.Several methods are available for carrying out the measurement.

WTW offers various measuring systems for these methods.

In “dilution BOD” the oxygen content of a sample is measured with an oxygen sensorbefore and after an incubation period of 5 days. The difference between the measure-ments is the BOD5 value; this method is officially recognized.

In “BOD self-checks” with the respirometer the reduction in oxygen causes a definitepressure difference which can be measured by a pressure sensor. This method is veryeasy to carry out and is a practical method.

As these two methods are basically very different they only correlate for a few sam-ples which, however, have a practical relevance such as in the discharge channelsof municipal sewage treatment plants. In both cases the samples must be kept at20 °C for 5 days. WTW offers a wide range of suitable thermostatted equipment.

Biological Oxygen Demand

Further information on this subject canbe requested from WTW:

BOD primer (CD-ROM)Application reportsOffprints

Literature

WTW offers seminars in which the subject of BOD measurement is treated in detail.On request WTW will be pleased to send you further details about these seminars.

Seminars

BOD measurementsaccording to DIN

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109

BOD Measurement


“Dilution BOD”according to EN 1899-1 (previously DIN 38 409 P51) and EN 1899-2

practical method according to the self-check regulations(previously DIN 38 409 P51)

“BOD self-check measurement”

inoLab® BSB/BOD Level 3

OxiTop® IS 12

OxiTop® Control

with instrument from page

inoLab® BSB/BOD Level 3 Versatile, accurate, with evaluation program 110acc. to EN 1899-1, EN 1899-2 and ISO 5815-1989

ProfiLine Oxi 197, Comfortable, robust, accurate 113ProfiLine Oxi 197-S

Applications

from page

For applications for soil analysis, 130biodegradability and others please refer to the Oxygen consumption rate section

For documentation Software, printers and accessories 180

Model from page

OxiTop® Simple handling, 5-day memory, 114mercury-free pressure measurement

OxiTop® Control Comfortable, large memory, 118infrared data transmission, graphics display

Extension sets ❍ OxiTop® measuring heads + SETs 123and Accessories ❍ OxiTop® control system 123

(measuring heads, controller...)❍ Stirrer platforms 124❍ Storage racks, marking rings 125❍ General accessories 125

Thermostats ❍ Thermostat boxes 126❍ Thermostat cabinets 127

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EN 1899-1/1899-2

“Dilution BOD” according to EN 1899-1 (previously DIN 38 409 P51) and EN 1899-2

BOD5 measurements can be carried out with all WTW laboratory oxygen meters.The instruments as the complete range of accessories are described in the “oxygen meters” section.

With inoLab® BSB/BOD Level 3flexible and powerful

inoLab® BSB/BOD Level 3 with terminal, self-stirringStirrOx® G oxygen sensor and bar-code reader

YearWarrantyIP 43 3

NEW

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111Wissenschaftlich-Technische Werkstätten GmbH & Co. KG · Dr.-Karl-Slevogt-Straße 1 · 82362 Weilheim · Germany · Tel.: +49 (0)881-183-0 · Fax: +49 (0)881-62539


Optionally a PC keyboard or bar-code reader

can be connected for sample identification

Versatile – precise – with BODn evaluation program

This laboratory oxygen meter has been specially developedfor BODn measurements. A special program allows BODn deter-mination according to EN 1899-1. You can store up to 7 ofyour own routines for frequently occurring dilution ratios. Amaximum of 30 measuring samples each with 18 dilutionsallow the management of up to 540 diluted samples. TheinoLab® BSB/BOD Level 3 can also be used as a conventionalhigh-end oxygen meter.

Special functions

• BOD/depletion• Determination of the biochemical oxygen demand

according to DIN EN 1899-1• Determination of oxygen depletion according to

DIN 38 414 P6• Up to 5 samples for dilution water• Up to 30 measuring samples• Up to 18 dilutions per measuring sample• Up to 7 routines can be stored• Adjustable incubation time, 5 ... 30 days

• For a detailed description of further oxygen meters in the inoLab® family see page 66 ff.

• Complete range of accessories see page 70 ff.

StirrOx® G

Self-stirring oxygen sensor – simul-taneous stirring and measurement

● Single-handed operation for rapidseries measurements

● Constant approach flow for highreproducibility

● Immediately ready for measuring –no polarization period required

● Extremely low self-consumption ofoxygen - only 0.008 µg h-1 (mg/l)-1

● Zero-current free – no zero pointcalibration necessary

● With calibration and storage vesselOxiCal®-ST as standard

● Long working life – 6 months withone electrolyte filling

● IMT temperature compensationwith 2 built-in temperature sensors

● Membrane leakage monitoring –damaged membranes are indicated

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Ordering InformationBOD measurement with inoLab® BSB/BOD Level 3 Order No.

inoLab® BSB/BOD Level 3 Flexible and powerful – the intelligent BOD measuring 1H30-010place consisting of multifunction box and universal terminal, with PC software/connection cable

inoLab® BSB/BOD Level 3 Intelligent BOD measuring place with additional built-in printer 1H31-010

inoLab® BSB/BOD Level 3 The integrated BOD measuring place, with PC software/connection cable, without printer/terminal 1H32-000

KF 12 Karlsruhe bottle including 60 mm ground stopper, suitable for 205 700BOD5 determination, minimum order 10 bottles

inoLab® BSB SETs Order No.

inoLab® BSB/BOD Level 3 Including terminal, oxygen sensor and accessories 1H30-011

inoLab® BSB/BOD Level 3 With built-in printer, including terminal, oxygen sensor and accessories 1H31-011

inoLab® BSB/BOD Level 3 Without printer/terminal, with PC software/connection cable, sensor and accessories 1H32-001

AccessoriesCellOx® 325-3 Galvanic oxygen sensor, 3 m cableStirrOx G Self-stirring oxygen sensor

Bar-code reader

SET ordering example inoLab® BSB/BOD Level 3 + CellOx® 325-3 1H30-011

Note: other sensors in SET and instruments versions for 120 VAC/60 Hzs are available on request

Ordering Information SETs

2

4

2

2

Please refer to page 70 for oxygen sensors and page 74 for further accessories.

Technical DatainoLab® BSB/BOD Level 3

Measuring range/ O2 conc. 0.00 ... 19.99 mg/lResolution 0.0 ... 90.0 mg/l*

O2 saturation 0.0 ... 199.9%0 ... 600%*

O2 part. press. 0.0 ... 199.9 mbar0 ... 1250 mbar

Temperature -5.0 ... +50.0 °C * depends on oxygen sensor and medium

Accuracy O2 conc. ±0.5% of value (±1 digit) O2 saturation ±0.5% of value

Temperature ±0.1 K

Temp. 0 ... +50 °C automatic via IMT compensationcompensation

Salinity Automatic from 0.0 ... 70.0,correction adjustable via display

AutoRead For reproducibility better than 0.05 mg/l or better than 1 mbar pO2

Real-time clock Not affected by power cuts

KCalibration OxiCal® rapid calibration in OxiCal®-SL

Data memory 2000 Data sets (measurement, temperature, time/date, ident no.); time-controlled storage at intervals from 1 s ... 60 days, data storage period unlimitedBSB/BOD: max. 540 diluted samples and multiple dilution water

Data output Via display or interface

Interface Self-configuring as analog output 0-2 V or bidirectional RS 232

Other For StirrOx® G with automatic AutoRead start and stop via key on StirrOx® Gconnections

Operating time Continuous from mains supply

Protection type IEC 529 / IP 43

Dimensions 300 x 250 x 70 (B x D x H in mm)

Weight Approx. 1.5 kg

Certified to CE, TÜV/GS, UL, CUL

Warranty 3 years on the instrument

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Ordering Information

• Detailed description of the ProfiLine Oxi 197 and Oxi 197-S laboratory oxygen meters see page 64 ff.

• Complete range of accessories see page 70 ff.

BOD measurement with ProfiLine Oxi 197 and Oxi 197-S Order No.

ProfiLine Oxi 197 ProfiLine oxygen meter, extremely robust, hose-water proof (IP 66), 200 350RS 232 digital output, operation from mains supply or rechargeable batteries, withplug-in power supply with connection for self-stirring oxygen sensor StirrOx® G and CellOx® 325

ProfiLine Oxi 197-S As ProfiLine Oxi 197, but additionally with 2 analog recorder outputs 200 313corresponding to the display of oxygen and temperature

StirrOx® G Self-stirring oxygen sensor for oxygen determination in Karlsruhe bottles, with OxiCal®-ST calibration 201 425and storage vessel and accessory case with spare parts and maintenance supplies

KF 12 Karlsruhe bottle including 60 mm ground stopper, suitable for 205 700BOD5 determination, minimum order 10 bottles

With ProfiLine Oxi 197, Oxi 197-Scomfortable · robust · accurate

Laboratory oxygen meters ProfiLine Oxi 197 andProfiLine Oxi 197-S with self-stirring oxygen sensorStirrOx® G

YearWarranty

IP 66IP 67 3

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BODMeasurement“BOD Self-Check

Measurements”Practical method according to the self-check regulations

Proposal for a German standard method –

DEV 46th installment 2000 – H55

OxiTop® IS 6, OxiTop® IS 12

Simple handling

Mercury-free measurement

5-day memory

Push-buttonmeasurements possible

Extendable

Mobile

Precise

FeaturesMercury-free BOD measurement

Despite all discussions about quickeralternative methods, the determinationof the biological oxygen demand BODhas not become any less important. Onthe contrary, it is still one of the mostimportant measurements for the man-agement of water resources and allowsstatements to be made about theloading of waters and wastewater withbiodegradable substances. The impor-tance of the respirometric BOD measure-ment is also shown by the inclusion ofthe “Determination of the biochemicaloxygen demand after n-days (BODn) ina respirometer – extension of themethod according to DIN EN 1899-2(H55)” as a proposal for a Germanstandard method in the 46th installment2000 of the DEV.

Criticisms of the conventional mano-metric measuring systems have mainlyconcerned the use of mercury for mea-suring the pressure. Mercury is toxic andif not handled properly it producesvapors which are injurious to health.

With the development of the OxiTop®

systems, WTW has fulfilled a worldwidecustomer wish – mercury-free BODdeterminations.

With OxiTop® WTW now offers a uniqueand modular mercury-free BOD instru-ment system which has been developedfor daily practical use.

OxiTop® alters the previous handlingprocess in a revolutionary manner.

YearWarranty1

U.S. patentgranted (US5,770,153)

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“BOD self-check measurements”


The OxiTop® IS 6, IS 12-6 and IS 12complete packages have beenassembled so that they containeverything necessary to carry outthe measurements.

OxiTop® IS 6

Ready for use with 6 measuring places

OxiTop® IS 12-6

Ready for use with 6 measuring places,extendable to 12 places

OxiTop® IS 12


Each package contains:

1 Stirrer platform IS 6/IS 12 with plug-in mains power supply(see page 124)

1 REF 600 Stirrer bar remover1 NHP 600 NaOH pellets1 NTH 600 Nitrification inhibitor1 MK 164/600 Overflow

flask 164 ml1 MK 432/600 Overflow

flask 432 ml1 Dia/600 Chart paper block

Each measuring place contains the following items:

1 OxiTop® (green or yellow) 1 PF 600 Amber sample bottle 1 GK 600L Rubber sleeve 1 RST 600 Stirrer bar

Conversion to OxiTop®

Any conventional manometric BODmeasuring instrument (no matterwhether from WTW or anybody else)can be converted to the OxiTop®

system. Various conversion sets areavailable. (see page 123)

OxiTop® IS 6, IS 12Complete package for 6 or 12 measuring places

... or conversion

YearWarranty1

Test agents see page 125

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OxiTop® closely observedBOD measurement with “brains”

The patented measuring headcontains the following items:

● 1 Piezoelectric pressure sensor● 2 Operating keys: M for

showing the momentary value; Sfor showing the stored value

● 2-place LED, displaying 00 to 50“scale divisions”. 1 scale divisioncorresponds to 3.55 hPa. Acorrect measurement shouldonly show scale divisions up to40; with larger values thesensible measuring range hasalready been exceeded so thatthe display only serves fororientation purposes.

● Data memory for 5 measure-ments at daily intervals. It is notnecessary to read off themeasurements every day as theyare made automatically. Thismeans that measurements canbe carried out over a weekendwith unattended operation. Themeasurement can also be readoff after 7 days (BOD7).

● AutoTemp function: delayedstart of measurement for sampleswhich are too cold. OxiTop®

delays the start until a constanttemperature has been achieved;the minimum delay period is 1 hour.

● 2 batteries with a typicalworking life of 1 year (if properlyused for BOD measurements).

YearWarrantyIP 54 1

Technical DataOxiTop®-measuring head

Measuring principle Manometric with pressure sensor

Quantity measured BODn

Measuring range 0 ... 40 digits (display units)equals 0 ... 40 / 80 / 200 / 400 / 800 / 2000 / 4000 mg/L BOD

Display range 0 ... 50 digits

Display ±1 digit (=̂ ±3.55 hPa)accuracy

Display 2-character 7-segment LED, 10 mm

Operating 500 ... 1100 hParange

Memory For BOD, daily

Power Lithium battery (280 mAh) supply 2 x CR 2430

Power consumption Max. 25 mA (during display of measurements)

Safety class 3 to IEC 1010

Protection type IP 54 to DIN 40 050

EMC EN 61326 Class B, FCC Class A

Climate class 2, VDI/VDE 3540

Ambient Storage: -25 ... +65 °Ctemperature Operation: +5 ... +50 °C

Dimensions 69 x 70 mm (H x dia.)

Test certificates CE, TÜV/GS, UL, CUL

Warranty 1 year on the instrument

Very modern microelectronics

Pressure sensor, microcontroller, timer, memory

US patent granted (US 5,770,153)

Registered industrial property rights:• Protected design patent• Utility model patent

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Accessories

BOD determination with OxiTop® “mercury-free” measuring system Order No.

OxiTop® IS 6 Complete package, ready for use, for 6 measuring places, with IS 6 Inductive Stirring System, 208 210for mains operation 230 V / 50/60 Hz and 6 OxiTop® measuring systems, including 6 sample bottles, 6 rubber sleeves, 6 stirrer bars and other accessories

OxiTop® IS 12-6 Complete package, ready for use, for 6 measuring places (extendable to 12 measuring places), 208 212with IS 12 Inductive Stirring System, for mains operation 230 V / 50/60 Hz and 6 OxiTop® measuring systems, including 6 sample bottles, 6 rubber sleeves, 6 stirrer bars and other accessories

OxiTop® IS 12 Complete package, ready for use, for 12 measuring places, with IS 12 Inductive Stirring System, 208 211for mains operation 230 V / 50/60 Hz and 12 OxiTop® measuring systems, including 12 sample bottles, 12 rubber sleeves, 12 stirrer bars and other accessories

Note: versions for 120 VAC / 60 Hz on request

For system Accessories from page

OxiTop® IS 6 and System extensions 123OxiTop® IS 12 Conversions (OxiTop® measuring heads, stirring systems IS 6, IS 12) 123

Storage rack for OxiTop® 125Marking rings 125

Thermostatic instruments (boxes, cabinets) 126

OxiTop® IS 12 OxiTop® IS 6

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BODMeasurement

Comfortable handling

Mercury-free pressuremeasurement

Large data memory inmeasuring head

Infrared data trans-mission to controller

Automatic samplemanagement

Automatic measuringprotocol

Mobile

Precise

Features

“BOD Self-CheckMeasurements”

Practical method according to the self-check regulations

Proposal for a German standard method –

DEV 46th installment 2000 – H55

OxiTop® Control 6, OxiTop® Control 12

The OxiTop® Control system is the logicalfurther development of the successfulOxiTop® system.

• Instead of the display and keys theOxiTop®-C measuring head has aninfrared interface with which it com-municates with Controller OC 100 orOC 110.

• The Controller OC 100/OC 110 canmanage up to 100 OxiTop®-C mea-suring heads.

• Documentation is carried out via theAchat OC program in combinationwith a PC (or the TD 100 Thermalprinter)

The measuring head stores 180 to 360data sets (depending on set runningtime) which can be called up at anytime in the Controller and where theyare shown graphically.

Call-up is by collect call or selectively by“pointing” to the required measuringhead. Each measuring head has its ownidentification; this means that manualidentification is no longer necessary.

Comfortable BOD determination with the OxiTop®

Control system

YearWarranty1

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Operation of the system is clear and simple

• Select language

• Set operating mode either

BOD routine for single samples or

BOD standard for samples withparallel batches and statisticalevaluation

• Set running time

• Prepare sample and start measure-ment by briefly clicking the measu-ring head with the Controller

• Incubate sample

• Wait until set running time haselapsed

• If necessary, monitor sample bycalling up the data (can also becarried out through glass or Plexiglas,

so that the sample is not disturbedby opening the door of thethermostat cabinet!)

• Data can be called up as often asrequired during the measurement

• When measurement is finished resultcan be read off from the Controllerdisplay

• Documentation of results

OxiTop® Control

Operation

Complete package for 6 or 12 measuring places

YearWarranty1

The OxiTop® Control 6 and Control 12 complete packageshave been assembled so that they contain everything necessary to carry out the measurements.

OxiTop® Control 6


OxiTop® Control 12


Each package contains:

1 Controller OC 1001 Stirrer platform IS 6/IS 12

with plug-in mains power supply(see page 124)

1 REF 600 Stirrer bar remover 1 NHP 600 NaOH-pellets1 NTH 600 Nitrification inhibitor1 MK 164/600 Overflow

flask 164 ml1 MK 432/600 Overflow

flask 432 ml1 Dia/600 Chart paper block

Each measuring place contains the following items:

1 OxiTop®-C 1 PF 600 Amber sample bottle 1 GK 600L Rubber sleeve 1 RST 600 Stirrer bar

120

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1 Short click from controller to measuring head to startthe sample

2 Infrared call-up of data at incubator. Data transfer eventhrough closed incubator doors and OxiTop® boxes

OxiTop®-C closely observedBOD measurement with “infrared brains”

The measuring head with itsprotected design and utility modelpatents contains the following items:

● 1 Piezoelectric pressure sensor,pressure range 500 to 1350 hPa

● Infrared interface for datatransmission to Controller withpilot lamp

● Data memory for max. 360 datasets. Data is stored automaticallyat preset time intervals from 0.5hours to max. 99 days.

● AutoTemp function: delayedstart of measurement for sampleswhich are too cold. OxiTop®-Cdelays the start until a constanttemperature has been achieved;the minimum delay period is 1hour. In the BOD standardoperating mode this functioncan be switched off.

● 2 batteries with a typicalworking life of 1 year.

YearWarrantyIP 54 1

OxiTop®-C measuring headMeasuring principle Manometric with pressure sensor

Measurement of BODn

Pressure 500 ... 1350 hParange

Accuracy ± 1% of value ± 1 hPa

Resolution 1 hPa (corresponds to 0.7% of BODn measuring range)

Display LED pilot lamp

Power 2 x CR 2430 supply lithium batteries (280 mAh)

Safety class 3, IEC 1010





Dimensions 70 x 70 mm (H x dia.)



Technical Data

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¡



OxiTop® Control closely observed

Achat OC PC communication program,TD 100 thermal printer

The handy Controller manages thedata for up to 100 OxiTop®-C measuring heads.

This comprises:

● Identifying the samples withautomatic number allocation, i.e.manual marking or labeling thesamples is not necessary

● Data call-up function for all samplesor selected samples.

● Sample progress display● Calculation, evaluation and

graphical presentation of BODvalue

● Protocol of data on battery-operated TD 100 Printer or with a PC via the Achat OCcommunication program

Operating comfort guaranteed by:

● Large graphics display● Operator guidance in

- German, English, French, Spanish, Italian (OC 100)

- German and English (OC 110)● Data transmission even through

glass doors● Simple adaptation to specific

measuring tasks

Confidence in the measurements isguaranteed by:

● AutoTest with function monitoringand system messages

● High data security, independent ofpower supply from batteries

YearWarrantyIP 54 1

Controller OxiTop® OC 100 + OC 110Measuring ranges OC 100/OC 110: 0 ... 40 / 80 / 200 / 400 / 800 / 2000 / 4000 mg/L BOD

(corresponds to 0 ... 142 hPa)

OC 110 only: • measuring range variable with upper limit 400 000 mg/L (in BOD special mode)

• 500 ... 1350 hPa (pressure mode)

Data sets per 180 ... 360 (depends on running time)measurement

Measurement Adjustable from:period 0.5 ... 6 h in 0.5 h steps

6 ... 24 h in 1 h steps1 .. 99 days in 1 day steps

Display LCD graphics display 64 x 128 point

Energy 3 x 1.5 V alkaline batteries supply (AA/mignon)






Dimensions 45 x 100 x 200 mm (H x B x D)

Weight Approx. 390 g



Technical Data

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BOD determination with Controller OxiTop® OC 100 and OxiTop®-C measuring heads “mercury-free” Order No.

OxiTop® Control 6 Complete package, ready for use, for 6 measuring places, with Controller OC 100 and IS 6 Inductive Stirring System, 208 201for mains operation 230 V / 50/60 Hz and 6 OxiTop®-C measuring systems, including 6 sample bottles, 6 rubber sleeves, 6 stirrer bars and other accessories

OxiTop® Control 12 Complete package, ready for use, for 12 measuring places, with Controller OC 100 and 208 204IS 12 Inductive Stirring System, for mains operation 230 V / 50/60 Hz and 12 OxiTop®-C measuring systems, including 12 sample bottles, 12 rubber sleeves, 12 stirrer bars and other accessories

Note: versions for 120 VAC / 60 Hz on request

Accessories Order No.

TD 100 Thermal printer (battery-operated) with IR interface for data 208 900 transmission from Controllers OxiTop® OC 100 and OC 110including 1 roll of special paper and 1 set of batteries

RP 100 1 roll of special paper for TD 100 thermal printer (minimum order 5 rolls) 208 910

Software (see also page 180) Order No.

ACHAT OC PC communication program “ACHAT OC” for Controller OxiTop® OC 100 or 208 990 OC 110 for further data processing and documentation of measuring data. Software requirements: Windows 3.1 or higher, update possibilities on request. Required accessory: interface cable AK 540/B

AK 540/B Interface cable for connecting Controller to a PC via the RS 232 interface, 902 842 including 9/25-pole adapter


for system Accessories from page

OxiTop® Control 6 System extensions OxiTop®-C IS 6, IS 12 123and Storage rack for OxiTop® 125OxiTop® Control 12

Thermostatic instruments (boxes, cabinets) 126

Accessories

Test agents see page 125

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OxiTop®-measuring heads and SETs

System extensions and conversions

OxiTop®-C IS 6 / IS 12

OxiTop®-C measuring heads and SETs

extension sets for OxiTop® Control

The OxiTop® measuring systems can be used to convert allconventional BOD measuring systems in a very simple way.

With the extension sets OxiTop®-C IS 6 and OxiTop®-C IS 12 the OxiTop® Control instruments can beextended by 6 and 12 measuring units respectively.

OxiTop® measuring heads Order No.

OxiTop®-10 10 OxiTop® measuring heads (5 yellow, 5 green) 208 813



OxiTop®/GB 1 OxiTop® measuring head (yellow) 208 810

OxiTop®/GN 1 OxiTop® measuring head (green) 208 800

OxiTop® measuring heads in SETs with accessories Order No.

OxiTop® SET-2 SET for 2 measuring units, complete with 2 OxiTop® measuring heads (1 yellow, 1 green), 208 8192 sample bottles, 2 sleeves, 2 magnetic stirrer bars



Ordering Information OxiTop®-measuring heads and SETs

BODMeasurementSystem Extensions,Conversions, general accessories

124

BSB BOD

DBOBSB

BOD DBO

BSB BOD

DBO


Ordering Information OxiTop®-C measuring heads and SETs

Stirrers for BOD measurement

Stirrers IS 6 and IS 12 have been specially developed for BODmeasurement with the OxiTop® system. With the aid of asoftware-controlled speed alteration system the stirrer alwayscatches the stirrer bar so that it cannot remain stationary norcan it wobble about. The sample is simply placed on a stirrerand the magnetic stirrer bar will start rotating properly in thecenter without any problems.

The speed is selected so that an optimal gas exchange with thesample takes place.

The stirrer is maintenance-free and non-wearing as it containsno moving parts.

Ordering Information for stirrers

OxiTop®-C measuring heads Order No.

OxiTop®-C 1 OxiTop®-C measuring head 208 830

OxiTop®-C 2 2 OxiTop®-C measuring heads 208 823

OxiTop®-C 6 6 OxiTop®-C measuring heads 208 822

OxiTop®-C measuring heads in extension set for OxiTop® Control Order No.

OxiTop®-C IS 6 Extension set for 6 measuring positions complete with IS 6 inductive stirring system, 208 130for mains operation 230 VAC 50/60 Hz, with 6 OxiTop®-C measuring heads and 6 sample bottles, 6 rubber sleeves, 6 magnetic stirrer bars

OxiTop®-C IS 12 Extension set for 12 measuring positions complete with IS 12 inductive stirring system, 208 133for mains operation 230 VAC 50/60 Hz, with 12 OxiTop®-C measuring heads and 12 sample bottles, 12 rubber sleeves, 12 magnetic stirrer bars

Note: versions for 120 VAC 60 Hz on request

Stirrers Order No.

IS 6 Stirrer for 6 stirrer positions, mains operation 230 VAC, 50/60 Hz 208 140

IS 12 Stirrer for 12 stirrer positions, mains operation 230 VAC, 50/60 Hz 208 141

Note: versions for 120 VAC/50/60 Hz on request

IS 6 IS 12Energy Plug-in mains transformersupply 230 VAC (+10%...-15%), 50/60 Hz/24 VA

optionally for 120 VAC (+10%...-15%), 50/60 Hz/24 VA

No. of stirring 6 12positions

Stirrer speed Program-controlled, 180...450 min-1


Protection type IP 30 to DIN 40050

EMV EN 61326 Class B, FCC Class A


Ambient Storage: -25 °C...+65 °Ctemperature Operation: +5 °C...+40 °C

Dimensions 67 x 265 x 181 mm 67 x 350 x 266 mm(H x B X D)

Weight 1.6 kg 3.2 kg



Technical Data

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Accessories “BOD self-check measurements”

Ordering Information general accessories

Storage racks

For safe storage of OxiTop® measuringsystems and OxiTop®-C measuringheads

Marking rings

For identification of BOD bottles forOxiTop® instruments

General accessories and spare parts

General accessories Order No.

St-OxiTop® Storage rack for 6 OxiTop® measuring systems 209 010

Mark-6 Set of marking rings (6 pcs) with 209 013set of identification shields (1-12) for bottle identification

Batt/OxiTop® Spare batteries (1 set) 209 012

MK 22/600 Overflow measuring flask, contents 22,7 ml 209 030



MK 164/600 Overflow measuring flask, contents 164 ml 209 060




PF 600 Sample bottle, amber, minimum order 3 pcs 209 100

GK 600 L Rubber sleeve, minimum order 3 pcs 209 172

RST 600 Stirrer bars, minimum order 3 pcs 209 120

REF 600 Stirrer bar remover 209 130

NHP 600 Sodium hydroxide pellets, 2 bottles of 50 g 209 140

NTH 600 Nitrification inhibitor 209 331

Dia/600 5 blocks of chart paper 209 020

Test agentsOxiTop® PM Test agent for monitoring OxiTop® systems 209 333

(packing unit for checking 6 measuring systems)

OxiTop® PT Test agent for checking under-pressure and leakage for all OxiTop® measuring heads 209 334

Mercury disposalHgP 6 Mercury disposal package for 6 measuring positions 209 162

HgP 10 Mercury disposal package for 10 measuring positions 209 163

QBM 600 Mercury binding agent (1 kg) 209 190

PE 600 Rubber ball, fits threads of PF 600 bottle 209 207

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BSB BOD

DBOBSB

BOD DBO

BSB BOD

DBO


OxiTop® Boxcompact – precise

OxiTop® Box is a benchtop model with hinged clear-view coverwhich can accommodate a maximum of either 12 OxiTop®

measuring places or 20 Karlsruhe bottles.

The chamber is equipped with a connection for an IS 6 or IS 12 stirrer.

A special compartment is provided for thermostatting 6 methylene blue samples.

The box is made of non-corrosive materials and thecompressor is CFC-free.

A cross-flow fan ensures uniform temperature distribution.

The box has an automatic defrosting system withcondensate evaporation.

Thermostat box with forced air circulation for20 ± 1 °C

BODMeasurementThermostats

OxiTop® Box, thermostat cabinets

OxiTop® BoxEnergy supply 230 VAC, 50 Hz (+10 ... -15%)

optionally 115 VAC 60 Hz (+10 ... -15%)

Power 200 Wconsumption

Starting current Max. 5 A (10 A for 115 V, 60 Hz)

Safety class 2, EN 61010



Temperature 20 °C ± 1 Kcontrol

Ventilation Yes

Additional heating Yes

Internal sockets 1

CFC-free Yes

Dimensions 375 x 425 x 600 mm (H x B x D)

Weight Approx. 30 kg

Test certificate CE


BOD thermostat boxes Order No.

OxiTop® Box BOD OxiTop® Box, thermostat box with temperature-controlled forced ventilation 208 432for 230 V 50 Hz mains supply

Note: versions for 115 V / 60 Hz on request


Technical DataExample of an application:

OxiTop® Box with OxiTop® Control 12

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Thermostats

Thermostat Cabinetsversatile · powerful · inexpensive

YearWarranty1

BOD5 values must be determined at aconstant temperature of 20 °C. If thisrequirement cannot be realized at theworkplace then a thermostat cabinet inwhich the samples can be placed for theduration of the test is required.

As the samples must be additionallystirred the thermostat cabinets are fittedwith internal sockets to provide thestirrers with electricity.

Depending on the thermostat cabinetsize up to 48 samples can be thermo-statted simultaneously.

Sizes /2 and /4 are available with trans-parent insulating glass doors.

Alternatively all thermostat cabinets canbe provided with a variable temperaturecontroller, range +5 ... +40 °C.

Thermostat cabinets with fixed and variable temperatures

128

BSB BOD

DBOBSB

BOD DBO

BSB BOD

DBO


Technical DataTS 606/2 TS 606-G/2 TS 606/3 TS 606/4 TS 606-G/4 TS 1006

Energy supply 230 V/50 Hz Euro

Power consumption 120 W 130 W 140 W 150 W 170 W 150 W

Gross contents 180 l 180 l 260 l 360 l 360 l 500 l

Weight 37 kg 47 kg 46 kg 62 kg 79 kg 76 kg

Ambient temperature +10 °C...+32 °C

Temperature control 20 °C ± 1 K

Forced air circulation Yes


Internal sockets 4

CFC-free Yes

Dimensions outside: 850 x 602 x 600 884 x 602 x 600 1215 x 602 x 600 1589 x 602 x 600 1589 x 602 x 600 1515 x 755 x 715(H x B x D in mm) inside: 734 x 513 x 433 734 x 513 x 433 1047 x 513 x 433 1418 x 513 x 433 1418 x 513 x 433 1338 x 646 x 516

Certified to CE, TÜV/GS


Note: Versions for 120 VAC 60 Hz on request

Technical DataTS 606/2-Var TS 606-G/2-Var TS 606/3-Var TS 606/4-Var TS 606-G/4-Var TS 1006-Var

Energy supply 230 V/50 Hz Euro

Power consumption 140 W 140 W 160 W 170 W 190 W 170 W

Gross contents 180 l 180 l 260 l 360 l 360 l 500 l

Weight 37 kg 47 kg 46 kg 62 kg 79 kg 76 kg

Ambient temperature +10 °C...+32 °C

Temperature control range +5 °C..+40 °C ±1 K

Forced air circulation Yes


Internal sockets 4

CFC-free Yes

Dimensions outside: 850 x 602 x 600 884 x 602 x 600 1215 x 602 x 600 1589 x 602 x 600 1589 x 602 x 600 1515 x 755 x 715(H x B x D in mm) inside: 734 x 513 x 433 734 x 513 x 433 1047 x 513 x 433 1418 x 513 x 433 1418 x 513 x 433 1338 x 646 x 516

Certified to CE, TÜV/GS


Note: Versions for 120 VAC 60 Hz on request

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Thermostats

Ordering Information BOD thermostat cabinetsBOD thermostat cabinets Order No.

TS 606/2 Thermostat cabinet for 2 BOD instruments OxiTop® Control 6/12, 208 252OxiTop® IS 6 /IS 12-6 / IS 12 / IS 602

TS 606/2-Var As TS 606/2 but with digital temperature setting in the range 208 365+5 ... +40 °C with digital display of actual value

TS 606-G/2 As TS 606/2 but with insulated glass front doors 208 253

TS 606-G/2-Var As TS 606-G/2 but with digital temperature setting in the range 208 366+5 ... +40 °C with digital display of actual value

TS 606/3 Thermostat cabinet for 3 BOD instruments OxiTop® Control 6/12/ 208 362OxiTop® IS 6 /IS 12-6 / IS 12 / IS 602


TS 606/4 Thermostat cabinet for 4 BOD instruments OxiTop® Control 6/12/ 208 355OxiTop® IS 6 / IS 12-6 / IS 12 / IS 602


TS 606-G/4 As TS 606/4 but with insulated glass front doors 208 356

TS 606-G/4-Var As TS 606-G/4 but with digital temperature setting in the range 208 369+5 ... +40 °C with digital display of actual value

TS 1006 Thermostat cabinet for 4 BOD instruments OxiTop® Control 6/12/ 208 622OxiTop® IS 6 / IS 12-6 / IS 12 / IS 602

TS 1006-Var As TS 1006 but with digital temperature setting in the range 208 370+5 ... +40 °C with digital display of actual value

Note: versions for 120 VAC 60 Hz on request

Documents

BOD Measurement - Thermo Fisher Scientific