Troubleshooting, If a measurement error occurs, refer to – Hach-Lange PHC20103 User Manual User Manual
Page 10
2. Fill the probe storage cap or soaker bottle half full with Hach Electrode Storage Solution
or 3 M potassium chloride (KCl) solution.
3. Put the soaker bottle on the probe and tighten the soaker bottle cap.
4. Make sure that the solution in the storage cap or soaker bottle completely covers the
glass bulb and reference junction.
Note: The probe can also be stored in a sample for up to 2 hours if the sample pH is not high.
If the glass bulb becomes dry:
Rehydration
1. Soak the probe tip in the 4.01, 7.00 and 10.01 buffers each for 5 minutes.
2. Rinse the probe with deionized water. Blot dry with a lint-free cloth.
3. Calibrate the probe.
Troubleshooting
Message or symptom
Possible cause
Action
Probe not supported
Software not updated
Update the HQd software to the newest revision at
. Refer to the HQd Series
meter manual for specific instructions for the meter model.
HQd meter does not support
IntelliCAL
®
probe
Contact a Technical Support Representative.
Connect a probe or
probe requires service
Probe not connected properly
Disconnect, then connect the probe. Tighten the locking nut.
Software not updated
Update the HQd software to the newest revision at
. Refer to the HQd Series
meter manual.
Large number of methods stored
Continue to let probe connect. Do not disconnect the probe.
Damaged probe
Make sure there is connectivity with another probe or meter to
confirm isolated issue with probe. Contact a Technical Support
Representative.
Standard not recognized
error
Probe storage cap or soaker bottle
not removed.
Remove the probe storage cap or soaker bottle.
Incorrect or contaminated buffer
solution
Use fresh buffer solution as specified in the method.
pH reading and/or mV
reading is same for all
solutions
Storage cap or soaker bottle not
removed
Remove the storage cap or soaker bottle.
Electrical issue
Contact a Technical Support Representative.
Slow stabilization time
Contaminated glass sensor
on page 9).
Poor contact between reference
junction and solution
Shake the probe in the solution from side to side to refresh the
reference junction.
Probe not prepared for sample
For the best stabilization time, soak the probe in the sample
for several minutes before doing a sample measurement.
Low sample temperature or
temperature difference between
samples
Check the sample temperature. The lower the temperature or
the greater the difference of temperatures between samples,
the longer the stabilization time will be.
Air bubbles around inner reference
electrode
Gently tap the probe with hand or shake the probe downward
to remove any air bubbles.
10
DOC022.52.80197