Connection Systems; Sensor Types - Siemens 3RS2 Manual

Digital devices

5.7 Sensor types

Performance feature
Number of sensors that can be moni‐
tored
Adjustable hysteresis values
Number of adjustable limit values
Adjustable trip delay time delay
Adjustable ON-delay time OnDelay
Adjustable monitoring
Reset
1)
Unit
1) See Reset (Page 43)
2) %, mA - applies only to the universal analog input 4 mA ... 20 mA
3) NTC Type: B57227-K333-A1 (100 °C: 1.8 kΩ; 25 °C: 32.762 kΩ)
5.6

Connection systems

The devices can be supplied with the connection systems detailed below:
• Screw terminals
• Spring-type terminal (Push In)
5.7 Sensor types
The digitally adjustable temperature monitoring relays support the connection of the following
types of sensor, depending on the version:
Resistance sensors
• Pt100
• Pt1000
• KTY83-110
• KTY84
• NTC
1) NTC type: B57227-K333-A1 (100 °C: 1.8 kΩ; 25 °C 32.762 kΩ)
Details are provided in Chapter Resistance sensors (Page 69).
32
3RS2600, 3RS2800
1
1 ... 999 °C/°F
2
Off; 0.1 ... 999 s
Off; 0.1 ... 999 s
Overshoot / undershoot / window mon‐
itoring
Auto / remote reset / manual reset
°C/°F
1)
3RS2600 + 3RS2900, 3RS2800 + 3RS2900
≤ 3
1 ... 999 °C/°F
2
Off; 0.1 ... 999 s
Off; 0.1 ... 999 s
Overshoot / undershoot / window monitoring
Auto / remote reset / manual reset
°C/°F/ (%, mA) 2)
3RS2 temperature monitoring relay
Equipment Manual, 02/2022, A5E42462552002A/RS-AB/002