3. Maximum Cable Length between Sensor and PS-220
The integral cable supplied with the sensor can be extended with another cable after a
connection inside an IP65 junction box.
ID-221 and all ID-223 sensors:
1. For Gas Group IIC hazardous area (Hydrogen):
150 meters maximum if 20 AWG wires (or thicker wires) are used.
1100 meters maximum if 22 AWG wires are used.
2. For Gas Groups IIA or IIB hazardous area (Ethylene and Propane):
1800 meters maximum if 20 AWG wires (or thicker wires) are used.
1100 meters maximum if 22 AWG wires are used.
3. For non-hazardous area:
1800 meters maximum if 20 AWG wires (or thicker wires) are used.
ID-225 sensors:
1. For Gas Group IIC hazardous area (Hydrogen):
150 meters maximum if 20 AWG wires (or thicker wires) are used.
550 meters maximum if 22 AWG wires are used.
2. For Gas Groups IIA or IIB hazardous area (Ethylene and Propane):
1300 meters maximum if 18 AWG wires (or thicker wires) are used.
900 meters maximum if 20 AWG wires are used.
3. For non-hazardous area:
1300 meters maximum if 18 AWG wires (or thicker wires) are used.
ID-227 sensors:
1. For Gas Group IIC hazardous area (Hydrogen):
150 meters maximum if 20 AWG wires (or thicker wires) are used.
1000 meters maximum if 22 AWG wires are used.
2. For Gas Groups IIA or IIB hazardous area (Ethylene and Propane):
1600 meters maximum if 20 AWG wires (or thicker wires) are used.
1000 meters maximum if 22 AWG wires are used.
3. For non-hazardous area:
1800 meters maximum if 20 AWG wires (or thicker wires) are used.
The above maximum cable lengths refer to connecting the sensor to Safety Barriers. Safety
Barriers are usually installed close to the signal processor in a safe area. A safe area may be
an Explosion Proof enclosure installed in a hazardous area. The Safety Barriers may be
installed in a longer distance from the signal processor, and the connecting cable between
them and signal processor should have 16 AWG wires (or thicker).
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