Vaisala hmt120 - 5 Maintenance; Removing and Fastening Fixed Humidity Probe; Figure 13 Removing the Humidity Probe (Fixed Probe Model)

5. Maintenance
5.1 Removing and Fastening Fixed Humidity Probe
To remove or replace the probe:
1. Loosen the metal locking bushing by carefully turning it counterclockwise.
2. Remove the probe from the transmitter by pulling it gently downwards.
3. Attach the new probe to the 4-pin M8 panel connector at the transmitter (only one
position possible).
4. Tighten the locking bushing to the M8 panel connector by turning it clockwise
1
2
3
Figure 13 Removing the Humidity Probe
(Fixed Probe Model)
1 Locking bushing
2 Holder bushing (attached permanently
to the probe)
3 HMP110 probe
HMT120 User Guide M211244EN-C
48