Appendix2. The diffrence between DPCS and DPCS Emulator
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Cold Junction Compensation input of STC01
The thermocouple compensation line of STC01 on the UIOU57 base card is attached on VTBUX32 of
TOSDIC terminal unit. The Cold Junction Compensation needs the circumference temperature of
VTBUX32 terminal unit. For this reason, an external thermistor is installed in the VTBUX32
neighborhood in DPCS emulator. The thermistor cable is connected to the thermistor connectors (CJC1
and CJC2) of UOIU57 base card. Attach the thermistor connected to CJC1 near channel 4, and one
connected to CJC2 near channel 12, to obtain best compensation result.
Figure A2.4 Thermo couple compensation line
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