Thermo Fisher Scientific 2-Wire Temperature Transmitter - Manual (Page 2)

68X256904 Rev 1 10/99
6 Before Calibration
Remove cover of Transmitter and ensure that electrode is correctly
connected as above. Connect Amp meter to the 4/20mA output of
Transmitter (Appendix 1).
7 Temperature Transmitter Calibration
1) Immerse Temperature probe in water bath at varying temperatures
and observe Amp meter display;
2) Amp meter should read corresponding mA output as follows:
3) In 0oC, the output is 4 mA;
4) In 25oC, the output is 8 mA;
5) In 50oC, the output is 12 mA;
6) In 80oC, the output is 16.8 mA;
7) In 100oC, the output is 20 mA;
8) To calibrate, locate “Temp adjustment” trimmer;
9) Using a fine screwdriver, slowly turn trimmer till Amp meter reads
correct current output;
NB: For other Temperature values, expected current output is based on:
mA = {(16/100) x Temperature value} + 4mA
8 Specifications
Model ECTEMPXTR
Range 0 TO 100 o C
Accuracy ±
0.5 o C
Calibration 1 pt
Input 2-wire Pt 100
Output 4-20 mA
Operating
Voltage DC 12 V to 24 V
Load 100 Ohms max. for 12 V;
600 Ohms max. for 24V
Housing 77 x 77 x 28 mm, field mountable
9 Appendix 1
Connecting Amp Meter for Calibration
Figure 3 - Method One
Figure 4 - Method Two
10 Ordering Information
pH
Item Cat Code
pH Transmitter ECPHXTR
Combination pH Electrode, General, integral 5m cable ECARTSO05B
Combination pH Electrode, w/PMP, integral 5m cable ECARGTSO05B
Dissolved Oxygen
Item Cat Code
Dissolved Oxygen Transmitter ECDOXTR
General Purpose D.O. probe, 0.5 – 40 ppm, Industrial,
integral 5m cable ECDOGEN
General Purpose D.O. probe, 0 – 10 ppm, Industrial,
integral 5m cable ECDOTPll
ORP
Item Cat Code
ORP Transmitter ECORPXTR
Combination Platinum ORP Electrode, w/PMP,
integral 5m cable ECHTPTTSO05B
Combination Gold ORP Electrode, w/PMP, integral
5m cable ECHTAUTTSO05B
Conductivity
Item Cat Code
Conductivity Transmitter ECCONXTR
2-Pin SS,k=1.0, integral 3m cable ECCONSEN46
Temperature
Item Cat Code
Temperature Transmitter ECTEMPXTR
Pt 100 probe, SS316 ECPT10001M or
ECPT10005M
Power Supply
Item Cat Code
120V Power Supply EC-120-XTR
220V Power Supply EC-220-XTR