4-12
(2) Replacement
q Switch off the unit and disconnect power
cable
w Disconnect the cable of the defective sensor
on the terminal board. Replace the sensor by
a new sensor and connect the cable on the
terminal board again.
(TB1), referring to wiring diagram in 7.12
4.1.15 Humidity sensor (optional)
Please replace sensor every 2 years.
(The accuracy of sensor shall be kept within
±5%RH)
CAUTION
1. Be sure the colour marker to identify the
defective sensor for SS an DSS, RS and
DRS.
2. Be sure to execute calibration after
replacement for correction of offset figure.
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