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MESSTEC Power Converter GmbH
Operating Manual
TEC Controller
Document: 10100920OM
Revision: 1.1
Date: 10.10.2019
Page 42/71
4-Wire Sensor cabling
For high precision temperature measurements it is recommended, to apply
4-wire cabling of the temperature sensor. In addition, a shielded cable may be
appropriate in case of significant EMI (Electromagnetic Interference).
Fig. 26: Sensor cabling: 4-Wire
Note: Never mix up A and B pins. At the sensor end of the cable, signal
TS-SUPP-A has to be combined only with TS-SENS-A. The same is true for
the B signals of the interface.
2-Wire Sensor cabling
For temperature measurements with lower requirements, it may be adequate
to apply 2-wire cabling of the temperature sensor. It is not necessary to exter-
nally short circuit the TS-SUPP and TS-SENS pins (A or B).
Fig. 27: Sensor cabling: 2-Wire