Hach 2100Q Manuel D'utilisation Simplifié page 16

Section 9 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.
Detector signal too Insufficient light on
low! the 180° detector.
Overrange! Turbidity too high-
caused probably by
calibrating with
RapidCal only.
Underrange! The measured
absorbance is below
the calibration range.
16 English
Please check the
lamp!
Solution
Make sure that the lid
is closed during
reading and re-read.
Temperature too
high! Switch off
• Insert new batteries
instrument.
• Connect
USB/power module
RST: Average value! Solids are settling too
if rechargeable
batteries are used
Repeat the reading.
Confidence level is <
95%
• Check for
obstructed light
path.
• Check the lamp.
• Calibrate the upper
range.
• Dilute the sample.
Standard value out
Repeat calibration
of range. Insert
standard and push
Read
ID already in use.
Enter new ID
Error/Warning Description
Signals are too low on
the 90° and 180°
detector.
Temperature has
exceeded the meter
limits (>60 °C or
>140 °F).
slowly. The reading
mode is not suitable
for this sample.
The reading mode
Rapidly Settling
Turbidity did not meet
the range of ≥ 95%
confidence.
Used incorrect
standard value for the
reading.
The Operator or
Sample ID is
unavailable as it is
already assigned.
Solution
2100Q: The lamp is
defective. Change the
lamp (refer to Replace
the lamp on page 13).
2100Qis: Contact
technical support.
Turn off the meter and
let it cool down.
Select Normal or
Signal Average
reading mode.
• Invert the sample
several times so
that the solids
allocate. Repeat
the reading again.
• Switch to the
Normal reading
mode if the sample
is stable and does
not have settable
solids.
Insert the appropriate
standard and read
again.
Create a new ID.