Hach 2100Q Manual Básico Del Usuario página 14

7
Troubleshooting
Refer to the following table for common problem messages or
symptoms, possible causes and corrective actions.
Error/Warning Description
Close lid and push The lid is open or lid
Read. detection failed.
Low Battery! Battery is low.
ADC Failure! Hardware error causing
reading to fail.
14 English
Detector signal too low! Insufficient light on the
Solution
Overrange!
Make sure that the lid is
closed during reading
and re-read.
• Insert new batteries
Underrange!
• Connect USB/power
module if
rechargeable batteries
are used
Repeat the reading.
8
Error/Warning Description
180° detector.
Turbidity too high-
caused probably by
calibrating with RapidCal
only.
The measured
absorbance is below the
calibration range.
Solution
• Check for obstructed
light path.
• Check the lamp.
• Calibrate the upper
range.
• Dilute the sample.
Repeat calibration