Hach-Lange LDO10130 User Manual
Page 11
Message or symptom
Possible cause
Action
Out of range
Probe cap loose, scratched
or damaged
Reposition or replace the probe cap.
Temperature and/or pressure
sensor error
Make sure that the temperature and pressure sensors
are both reading correctly.
1
Damaged probe
Make sure that the blue and red LEDs are both
illuminated on the probe. If not, replace the probe or
contact a Technical Support Representative.
Sample outside of
specifications
Make sure that the sample concentration, temperature
and pressure are within the range of the probe.
iButton number does not
match probe cap lot number
Replace the iButton or probe cap or do a user
calibration.
Bubbles trapped under probe
tip
Gently shake the probe until bubbles are removed.
Out of range
Probe cap exposed to direct
sunlight
Install the protective shroud.
Slope out of range
Probe not prepared for
sample
Let the probe reach equilibrium in a water-saturated air
environment and do the calibration again.
Calibration method settings
Make sure that the calibration standards in the method
are correct.
Probe cap loose, scratched
or damaged
Locate and install the iButton that matches the probe
cap and replace the probe cap.
Temperature and pressure
errors
Make sure that the temperature and pressure sensors
are both reading accurately. Contact a Technical
Support Representative.
1
LED lights do not function
Contact a Technical Support Representative.
Bubbles trapped under probe
tip
Gently shake the probe until bubbles are removed.
LDO–calibration not supported
(factory calibration)
LDO method calibration
option is set to Factory.
If user calibration is necessary, change the settings in
Calibration Options. Refer to
on page 8.
O2 Sensor 0 days remaining
There are 0 days remaining
in the life of the probe cap
Replace the probe cap. Calibration will be allowed,
however the calibration icon and question mark will be
shown on the measurement screen even if the
calibration has passed.
Meter set to incorrect date
and time
Disconnect the probe from the meter. Set the correct
date and time in the Meter Options menu. Connect the
probe and make sure that the message has been
removed.
Software not updated
Update the HQd software to the latest version and test
again.
O2 Sensor ## of days remaining
There are 30 days or fewer
remaining in the life of the
probe cap.
Replace the probe cap soon.
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