Siemens 3RS2

4.5 Sensor types
The analogically adjustable temperature monitoring relays support the connection of the
following types of sensor, depending on the version:
• Resistance sensors Pt100 (monitoring for overshoot and undershoot) For more detailed
information, refer to Chapter "Resistance sensors (Page 69)".
• Thermocouples
– Type J (monitoring for overshoot and undershoot)
– Type K (monitoring for overshoot and undershoot)
For more detailed information, refer to Chapter Thermocouples (Page 67).
4.6 Measuring ranges
Table 4-2 Measuring ranges of the analog devices
Measuring
range
Switch position of the potentiometer for setting the measured value ϑ1
Min 1/2 Max
0 °C ... +100 °C 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C
0 °C ... +200 °C 0 °C 20 °C 40 °C 60 °C 80 °C 100 °C 120 °C 140 °C 160 °C 180 °C 200 °C
0 °C ... +600 °C 0 °C 60 °C 120 °C 180 °C 240 °C 300 °C 360 °C 420 °C 480 °C 540 °C 600 °C
+500 °C ... +1000
°C
500 °C 550 °C 600 °C 650 °C 700 °C 750 °C 800 °C 850 °C 900 °C 950 °C 1000 °C
-50 °C ... +50 °C -50 °C -40 °C -30 °C -20 °C -10 °C 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C
Measuring ranges of the sensors:
• Pt100 resistance sensors:
– -50 °C ... +50 °C
– 0 °C ... +100 °C
– 0 °C ... +200 °C
• Thermocouples:
– 0 °C ... +200 °C
– 0 °C ... +600 °C
– +500 °C ... +1000 °C
Changes in temperature over time can be found in the time diagrams (see Chapter Time
diagrams (Page 22)).
Analog devices
4.6 Measuring ranges
3RS2 temperature monitoring relay
Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002 19