Peekel Instruments PICAS - Connection of a 0-20 Ma Sensor; Connection of a Thermocouple Element

Peekel Instruments User manual PICAS V2.6.1
Page 18 of 59
2.2.6 Connection of a 0-20mA Sensor
Connection of a current sensor (0-20 mA or 4 – 20mA) when the sensor power supply from
PICAS is not used.
5V
1mA
1
2
3
4
5
6
to chassis
I
Figure 16: 0 – 20 mA Sensor connection
2.2.7 Connection of a Thermocouple element
A thermocouple element is connected like a voltage signal. For the compensation of the
cold junction at the screw terminals, the first channel of the CA4AI card is used. With this
channel the temperature of the junction must be measured, with a PT100 element.
5V
1mA
1
2
3
4
5
6
to chassis
V
Figure 17: Thermocouple connection