palintest Pooltest 3 - Page 7

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Pooltest
Pooltest
Press the blank key.
The screen will show
that the instrument is
measuring the blank.
Blanking enables the instrument to set the correct zero value.
This ensures the final result will be accurate, even when testing
water that is cloudy or coloured.
The blank value is held in memory. However, blanking
should be performed again each time a new sample is
taken from the pool or spa.
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