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Warning & Error Descriptions
8. WARNING & ERROR DESCRIPTIONS
The instrument shows clear warning messages when erroneous conditions appear and when measured values
are outside the expected range. The information below provides an explanation of the errors and warnings,
and recommended action to be taken.
There is an excess amount of ambient light reaching the detector.
Ensure that the notch on the cap is positioned securely in the groove
before performing any measurements.
If the issue persists, please contact Hanna Instruments
®
technical support.
The sample and the zero cuvettes are inverted.
Swap the cuvettes and repeat the measurement.
There is either too much light or the instrument can not adjust the light
level. Please check the preparation of the zero cuvette and that the sample
does not contain any debris.
The meter is overheating. It cannot operate within published accuracy
specifications. The meter must be between 0 and 50 °C (32 and 122 °F)
to perform any measurements.
The meter temperature has dropped too low to operate within published
accuracy specifications. The meter must be between 0 and 50 °C (32 and
122 °F) to perform any measurements.
Meter temperature has changed significantly since the zero measurement
has been performed.
The zero measurement must be performed again.
The measured value is outside the limits of the method. Verify that the
sample does not contain any debris.
Check sample preparation, measurement preparation and method range.
Date and time settings have been lost.
Reset the values.
If the issue persists, please contact Hanna Instruments technical support.