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H49.0.01.6C-05_VWR

as of version 1.6

Operating Manual

TD 121

Recalibratable high precision thermometer

For Pt100 4-wire temperature probes

European Catalogue Number(s):

Euro Plug:

620-1932

Issued:

01.04.2013

WEEE-Reg.-Nr. DE 93889386

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Summary of Contents for TD 121

Page 1: ...5_VWR as of version 1 6 Operating Manual TD 121 Recalibratable high precision thermometer For Pt100 4 wire temperature probes European Catalogue Number s Euro Plug 620 1932 Issued 01 04 2013 WEEE Reg Nr DE 93889386 ...

Page 2: ...ation and reliability of the device can only be guaranteed if it is not subjected to any other climatic conditions than those stated under Specification 2 Transporting the device from a cold to a warm environment condensation may result in a failure of the function In such a case make sure the device temperature has adjusted to the ambient temperature before trying a new start up 3 The circuitry h...

Page 3: ...but at the plug When connecting the probe the plug will slide in smoothly if plug is entered correctly Selection of Output Mode The output can be used as serial interface or as analogue output This choice has to be done in the configuration menu 1 3 Connections 1 Output Operation as interface Connect to optically isolated interface adapter Operation as analogue output Connection via suitable cable...

Page 4: ...y this factor to compensate for deviations in the temperature probe or in the measuring device factor is in oFF Scale correction factor inactive 0 000 2 5 Power off Selection of Power Off Delay 1 120 Power off delay in minutes Device will be automatically switched off as soon as this time has elapsed if no key is pressed no interface communication takes place oFF Power off function inactive contin...

Page 5: ...rrors often occur if the heat loss caused by the probe is not considered When measuring fluids therefore the probe should be emerged sufficiently deep and be stirred continuously When measuring gases the probe should also emerge as deep as possible in the gas to be measured e g when measuring in channel pipes and the gas should flow around the probe at sufficient flow Measuring Surface Temperature...

Page 6: ... 1 Scal 100 32 F Standard setting off 0 000 i e temperature is nor corrected Together with the zero displacement see above this factor is mainly used to compensate for sensor deviations Unless the factor is set to off the Corr arrow in the display shows an active scale correction 4 4 Output By using an electrically isolated interface converter the device can be connected to a PC The output can be ...

Page 7: ...he measuring range specified temperature too high Wrong probe connected Check probe sensor cable defective replace Err 2 Value below display range Check Is the value below the measuring range specified temperature too low Wrong probe connected Check probe sensor cable defective replace Err 3 Value exceeding display range set resolution to 0 1 or Auto Err 4 Value below display range set resolution ...

Page 8: ... internal pin 1 9 mm for external 10 5 12V direct voltage supply suitable power supply PS 100 Power Consumption output off ca 0 90mA output serial interface ca 1 15mA analogue output ca 1 25mA Display Two 4 digits LCD s 12 4mm high and 7 mm high for temperature min max values hold function etc as well as additional pointing arrows Pushbuttons 6 membrane keys for on off switch menu operation min an...

Page 9: ...NTIES OF FITNESS AND IN LIEU OF THE WARRANTY OF MERCHANTABILITY 11Equipment disposal This equipment is marked with the crossed out wheeled bin symbol to indicate that this equipment must not be disposed of with unsorted waste Instead it s your responsibility to correctly dispose of your equipment at lifecycle end by handling it over to an authorized facility for separate collection and recycling I...

Page 10: ...8 400 Fax 020 4808 480 E mail info nl vwr com Norway VWR International AS Haavard Martinsens vei 30 0978 Oslo Tel 02290 Fax 815 00 940 E mail info no vwr com Poland Labart Sp z o o A VWR International Company Limbowa 5 80 175 Gdansk Tel 058 32 38 200 do 204 Fax 058 32 38 205 E mail labart pl vwr com Portugal VWR International Material de Laboratório Lda Edifício Neopark Av Tomás Ribeiro 43 3 D 279...

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