JUMO 14597 safetyM STB/STW Ex - Safety Temperature Limiter and Safety Temperature Monitor Operating Manual - Manual (Page 25)

4 Electrical connection
19 2013-04-01
Legend Comment Screw terminals Screw terminals
1, 2 Analog input 1 (E1) Analog input 2 (E2)
Thermocouple /
Double thermocouple
RTD temperature probe Pt100/Pt1000 in
2-wire circuit
RTD temperature probe Pt100/Pt1000 in
3-wire circuit
V
RTD temperature probe Pt100 in
2-wire circuit, single sensor for both analog inputs
Caution:
When only one probe (SIL2) is connected, the temperature limiter device is reduced from
SIL3 to SIL2! However,
the internal 2-channel structure (1oo2D) in the device still remains.
Both channels measure the same sensor due to the simplified external wiring.
+
–
2 3
+
–
7 8
J
1 3
J
6 8
A
Enter the lead wire resistance for RTD temperature probes in 2-wire circuit when using greater line
lengths.
v
Setup program: edit => analog inputs
1 2 3
J
6 7 8
J
J
1 3 6 8