User`s guide

Chapter 4 ______________________________________________________________ Maintenance
VAISALA ______________________________________________________________________ 105
0201-001
Figure 54 QMH101 Probe Maintenance
The following numbers refer to Figure 54 above.
1 = Handle with cable
2 = Probe head
4. Attach the calibrated probe into the handle.
5. Push the sensor carefully back into the radiation shield.
6. Reconnect the cable.
Rain Gauge QMR101M
To ensure reliable and accurate measurements, we recommend that the
following checks be carried out at each visit to the rain gauge.
NOTE
If the gauge is still connected to the data logger and logger is
operating, be careful not to tip the spoon/bucket when carrying out
the following operations.
1. Inspect the funnel for any damage or blockage. At certain times
of year, leaves may have accumulated into the funnel. Dirt and
dust can also block the grille preventing or reducing the flow
rate to a slow drip to the buckets beneath. Remove all obstacles
from the funnel.
2. Check that the gauge is still level. It is surprisingly easy for an
apparently immovable gauge to become tilted as a result of