Carel GLD Small Series - Sensor Replacement Procedure; Built-in Version Sensor Replacement

30
ENG
Gas Leakage Detector +0300047IE rel 1.1 - 26.04.2023
Maintenance
4.5 Sensor replacement procedure
When the need for replacement is signalled via Modbus communication (coil 311 SensorExpired), proceed as follows:
• Acquire a pre-calibrated sensor with the same part number as the one mounted on the detector.
• Disconnect power
4.5.1 Built-in version:
J6
J5
3B
2B
1B
3A
2A
1A
–
+
G
+
B
A
G0
Sh
J2
J1
R1
W3
W2
W1
W8
W7
W6
W5
W4
J7
J8
J4
J3
24 Vac/dc
Open the cover
J6
J5
J5
J5
J5
J5
J5
J5
J5
J5
3B
2B
1B
J5
1B
J5
3A
2A
1A
–
+
G
+
B
A
G0
Sh
J2
J1
R1
W3
W2
W1
W8
W7
W6
W5
W4
J7
J8
J4
J4
J4
1A
J4
1A
J4
J4
J4
J3
J3
J3
J3
J3
J3
J3
J3
J3
J3
J3
J3
24 Vac/dc
Unplug the pre-calibrated sensor connector from J7
J6
J5
3B
2B
1B
3A
2A
1A
J6
J5
J5
J5
J5
J5
J5
J5
J5
3B
2B
1B
J5
1B
J5
3A
2A
1A
J7
Unscrew the sensor from the inside nut.
J6
J5
3B
2B
1B
3A
2A
1A
–
+
G
+
B
A
G0
Sh
J2
J1
R1
W3
W2
W1
W8
W7
W6
W5
W4
J7
J8
J4
J3
24 Vac/dc
J6
J5
3B
2B
1B
3A
2A
1A
–
+
G
+
B
A
G0
Sh
J2
J1
R1
W3
W2
W1
W8
W7
W6
W5
W4
J7
J8
J4
J3
24 Vac/dc
Completely disconnect the pre-calibrated sensor from its housing and replace
the pre-calibrated sensor with a new one with the same part number.