Connecting The Calec® St Iii Smart - INTEGRA Metering CALEC ST III User Manual

Installation
5.3.2 Connecting the CALEC® ST III Smart
Connect the meter according to schematic diagram on the inside of the front cover.
u
Upper row
Label Function
6
2
Temperature
Hot side (2/4 wires)
1
5
9 Sensor power +3.6 V
11 GND #1
10 Pulse input #1
25 M-Bus B
24 M-Bus A
B11
Socket #1
Channel 1
A11
B31 RS485 #1 B
A31 RS485 #1 A
B21
Socket #2
Channel 1
A21
65 Sensor power -24 V
64 Sensor power +24 V
L, N Main power supply
3-140-UM-EN-02
Wrong connections may destroy the device
The function and the marking of the terminals A11/B11, A12/B12, A31/B31, A41/B41, A21/B21,
A22/B22 depends on the options installed in the device.
u Carefully check the installed options and choose the correct connections.
Incomplete wiring of the temperature sensors
Incomplete wiring of the 2-wire temperature sensors may lead to false measurement results.
u Always connect the 2-wire temperature sensors together with the four supplied wire
bridges.
NOTICE
NOTICE
Lower row
Label Function
8
4
Temperature
Cold side (2/4 wires)
3
7
86 Sensor power +3.6V
55 GND #2
54 Pulse input #2
51 Digital out A
50 Digital out A
B12
Socket #1
Channel 2
A12
B41 RS485 #2 B
A41 RS485 #2 A
B22
Socket #2
Channel 2
A22
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