Vaisala HMP230 Manuel d'utilisateur télécharger pdf (Page 12)

HMP230 SERIES

User's Guide M210225en-B

NOTE

During installation the sensor head must not be unsol-

dered from and again resoldered to the main printed

board of the transmitter. This procedure may damage

the humidity calibration of the transmitter.

3.2.3. HMP233 transmitter

The HMP233 can be installed in ducts and channels with the help of the in-

stallation kit available; the kit consists of a flange, a supporting bar for the

sensor head cable and screws for attaching the flange to the wall of a duct.

With the help of the installation kit the distance between the sensor head and

the channel wall can be easily adjusted. The range of adjustment is 100...320

mm; the distance is measured from the tip of the sensor head to the flange.

supporting bar

sealing

flange

a plugged hole for reference

measurements

duct wall

Figure 3 Installing the sensor head of the HMP233 in a channel with

the help of flange and supporting bar.

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Vaisala HMP230 Manuel d'utilisateur Page 12