Sensor Types; Measuring Ranges - Siemens 3RS2 Manual

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
Min
0 °C ... +100 °C 0 °C
0 °C ... +200 °C 0 °C
0 °C ... +600 °C 0 °C
+500 °C ... +1000 500 °C
°C
-50 °C ... +50 °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)).
3RS2 temperature monitoring relay
Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002
Switch position of the potentiometer for setting the measured value ϑ1
10 °C 20 °C 30 °C
20 °C 40 °C 60 °C
60 °C 120 °C 180 °C
550 °C 600 °C 650 °C
-40 °C -30 °C -20 °C
1/2
40 °C 50 °C 60 °C
80 °C 100 °C 120 °C
240 °C 300 °C 360 °C
700 °C 750 °C 800 °C
-10 °C 0 °C 10 °C
Analog devices
4.6 Measuring ranges
70 °C 80 °C 90 °C
140 °C 160 °C 180 °C
420 °C 480 °C 540 °C
850 °C 900 °C 950 °C
20 °C 30 °C 40 °C
Max
100 °C
200 °C
600 °C
1000 °C
50 °C
19