Hanna Instruments HI 96770C Thermometer User Manual


 
9
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
Light High: There is too much light to perform a measurement.
Please check the preparation of the zero cuvet.
Light Low: There is not enough light to perform a measurement.
Please check the preparation of the zero cuvet.
No Light: The instrument cannot adjust the light level. Please check
that the samples does not contain any debris.
Inverted cuvets: The sample and the zero cuvet are inverted.
Zero: A zero reading was not taken. Follow the instructions of
the measurement procedure for zeroing the meter.
b) on sample reading
ERRORS AND WARNINGS
Under range: A blinking “0” indicates that the silica content in the
sample is less than 0 mg/L.