Maintenance
1. Do not use the meter in an environment with severe change; do
not store the unit in an environment with high temperature, high
humidity, and high vibration.
2. Take battery off if the meter has not been used for a long period
of time.
3. The humidity sensor will start aging under the influence of
oxidation, reduction, corrosion, pollution, vaporisation, diffusion or
other metallurgy. The aging process will affect its precision
seriously.
4. Cleaning and inspection of temperature probe:
The smoke, coal, dust, grease attached on the protective tube of
temperature probe will slow down the heat conduction of the
thermocouple and cause measuring error.
5. Cleaning and inspection of humidity sensor:
The smoke and dust attached on the humidity sensor will slow
down the function of humidity sensor and cause measuring error.
Therefore, it should be cleaned periodically. Blow off the dust with
mild compressed air instead of water or alcohol. The aluminium
plate inside the humidity sensor should be replaced upon the
occurrence of corrosion.
6. Battery replacement:
Open the battery case and replace the exhausted battery with
new battery. (1 x 9V battery NEDA 1604, 6F22 or equivalent)
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