CGEO INTERNATIONAL LIMITED CGEO-TEM2, Руководство по установке

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BSIL-T2-1.1 Instruction Manual
CGEO INTERNATIONAL LIMITED Installation Manual
4
Red
Red
红
Whit
e
白
Gree
n
绿
Blac
Readout
Box
读数仪
Gree
n
绿
Whit
e
白
CGEO-TEM2 thermometer wiring schematic diagram
When measuring, connect the green and white nips of CGEO-PR-VW to the black, red wires
of the transducers to read out directly, or connect green, white nips to black, red wire of
thermometer, and then the thermistor readings can be displayed directly in

C.
Note
，
please do not connect 4 colors nips of readout box to 4 core wires of thermometer
simultaneously, that is, it is just allowed to connect two wires every time to measure
temperature, otherwise it will result in readings error.
There are no polarity difference in signal lines of CGEO-TEM2 thermometer, green,
white wire are changeable.
6. Temperature Calculation Formula
T
A B LnR C LnR

 

1
273 2
3
( ) ( )
.
where:
T

Temperature in

C.
R

Resistance of the temperature transducers in
Ω.
LnR

Natural Log of Thermistor Resistance
A

1.4051

10-3 (coefficient is effective in
range
-5
0℃~+150℃)
B

2.369

10-4
C

1.019

10-7
If there is no special readout, the thermistor can be read by using a digital ohmmeter in
conjunction with the above equation, or get the temperature by Appendix A.