Vaisala HMDW80 User Manual download pdf (Page 38)

User's Guide _______________________________________________________________________

36 ___________________________________________________________________ M211510EN-C

Replacing the INTERCAP

Sensor on

Outdoor Models HMS82/83

REQUIRED

TOOLS

- New INTERCAP

humidity sensor.

- New filter (always recommended when replacing the sensor).

- Medium size crosshead screwdriver (Pozidriv)

- Flat head screwdriver

- 3 mm hex key (Allen key) for opening the radiation shield screws.

- If transmitter mounted on pole: 2.5 mm hex key for opening and

tightening the set screw.

NOTE

You will need to remove the radiation shield to access the sensor, and

this is difficult to do while the transmitter remains mounted on a pole or

wall. The procedure below takes advantage of the detachable screw

terminal to allow the cable to remain in place during the operation.

1. Power down the transmitter.

2. Open the transmitter cover and unplug the screw terminal. This

allows you to leave the cable and cover at the installation site.

1305-019

Figure 22 Unplugging the Screw Terminal

3. Remove the transmitter from its installation point.

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Vaisala HMDW80 User Manual Page 38