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The instrument shows clear messages when erroneous condition appears. Messages are also displayed
when the obtained values are outside expected range. The beeper is playing a beep on errors.
a) on zero reading
b) on sample reading
Light High: There is too much light to perform a measurement.
Please check the preparation of the zero cuvette.
Light Low: There is not enough light to perform a measurement.
Please check the preparation of the zero cuvette.
No Light: The instrument cannot adjust the light level. Please check
that the sample does not contain any debris.
Inverted Cuvettes: The sample and the zero cuvette are
inverted.
Zero: A zero reading was not taken. Follow the instructions of the
measurement procedure for zeroing the meter.
Under Range: A blinking "0.00" indicates that the sample absorbs
less light than the zero reference. Check the procedure and make sure
you use the same cuvette for reference (zero) and measurement.
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