Sensor Electronics SEC Millenium Series Instruction And Operation Manual page 24

High Alarm
Low Alarm
+ 24 VDC
Switch Device
Pressure Switch
Open Path Gas Detector
Air Flow Switch
Temperature Switch
Fire Detector
NOTE: Refer to the SEC 3100 DIN Transmitter Instruction
SEC 3100 DIN WIRING DIAGRAM
SEC 3100 LIM
SEC 3100 DIN Transmitter
TB 5
1 DC COMMON
2 +24 VDC
3 4 – 20 mA
4 Communication
Manual for additional wiring connections.