Gill GMX100 User Manual page 124

Gill Instruments Ltd
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Inspect the funnel and filter for any damage or blockage. At certain times of the year leaves may
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have accumulated in the funnel. Dirt and dust can also block the filter, preventing or reducing the
flow rate to a slow drip to the bucket beneath. The leaves can easily be removed from the funnel.
Unscrew the 3 nylon screws securing the funnel to the case assembly and remove the funnel.
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Remove the end cap from the filter tube; remove the gauze filter material carefully.
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The external plastic funnel surface should be cleaned with clean water and a sponge; this will
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generally remove any mildew should this have been allowed to grow.
Chemicals/detergents should not be used if the water is to be collected for later analysis.
Otherwise mild detergents can be used if required.
The internal funnel tube that directs water to the tipping buckets may need cleaning. Use a pipe
cleaner or small nylon bristle wire brush or similar part to insert into the pipe to clean it.
Clean or replace the gauze filter into the filter tube and replace the top cap (for spares contact Gill

Instruments).
Remove and clean any dirt from the tipping bucket, being careful not to tip the bucket should the
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rain gauge still be logging.
Tipping
Bucket
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MaxiMet
Doc. No. 1957-PS-021
Gauze
Funnel filter kit
Funnel tube
Page 124
End cap
Balance arm
Level
May 2018
Issue 3