Gill Instruments Ltd
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MetPak/MetPak RG and MetPak Pro Base Stations
Page | 98
Issue 1
Doc. No. 1723-PS-0023
October 2018
There is a drain hole at the base of the instrument with a gauze covering that might require
periodic cleaning. Carefully lift out the tipping bucket assembly to gain access to the drain hole for
checking/cleaning.
Carefully re-assemble the Rain gauge parts. When assembling the funnel to the base assembly
check that the internal funnel does not foul onto the tipping bucket. This can be checked by
pouring in water and checking the bucket tips or if the whole assembly is not fixed in position by
gently rocking the bucket and listening for the bucket to tip.
Internal parts require no lubrication.
NOTES
If a replacement or re-calibrated Rain Gauge is used then the Hub box will need programming
using MetSet with the new tip calibration factor if this has changed.
Calibration figures can be seen on the labels inside the Rain Gauge on the underneath of the
bucket and adjacent to the tip assembly.
8.2.6.
Tipping Bucket Spare Parts
1723-PK-076
Aerodynamic Tipping Bucket Rain Gauge (ARG100/EC (GI).
1723-PK-114
Tipping bucket Spares comprising of:-
3 off nylon screws to retain the bucket to the base assembly.
2 off funnel gauze filters.
2 off funnel gauze retainer top caps.
Users can check operation of the rain gauge by performing a simple test of functionality by pouring
some water into the bucket. The MetPak rain gauge should register incremental rainfall.
8.2.7.
Solar Sensor
If a Solar Sensor is used with a MetPak Pro Base Station then Users/Distributors should clean the
glass dome with a soft lint free cloth and where necessary with a non-aggressive cleaning solution
ideally once a week. Where this is not possible, cleaning should be done during regularly
scheduled visits to the sensor and site. It is ideally recommended the solar sensor should be
cleaned every month.
Drain Hole
Gauze
