Vaisala HM44 - Manual (Page 19)

Chapter 5 ____________________________________________ Humidity measurements in concrete
VAISALA __________________________________________________________________________ 17
4. Insert the probe into the sleeve by feeding it in with the cable until it touches the
bottom. Close a rubber plug around the cable and seal the sleeve with it:
Figure 5.3 Sealing the sleeve with a plastic plug
5. Fold the cable in the installation cover and close the lid. Leave the probe to stabilize
before starting the measurements.
§
plastic
sleeve
probe
rubber
plug lid
probe
cable
installation
cover
sealing
Figure 5.4 Cable folded in the installation cover
Alternatively, you can insert the probe into the sleeve about 30 minutes before starting the
measurements. In this case, close the cable lead-through of a rubber plug with its cap as
shown in the photo, and seal the sleeve with the plug: