JUMO 701150 14597 safetyM STB/STW - Safety Temperature Limiter and Safety Temperature Monitor Operating Manual - Manual (Page 71)

7 Configuration level 71 2014-05-01
7.2 Analog inputs
k Factory setting
7.2.1 Connection Comment
Two sensors This setting is provided for dual probes or for two different probes.
Each of the two analog inputs is monitored separately for probe break, probe
short-circuit.
Single Pt100 in 2-wire circuit V 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.
Single 4 to 20 mA V 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 current signal due to the simplified external
wiring.