Hach-Lange PHC745 - Manual (Page 13)

1. Soak the probe tip in the 4.01 and 7.00 buffers each for 5 minutes.
2. Rinse the probe with deionized water. Blot dry with a no-lint cloth.
3. Calibrate the probe.
Troubleshooting
Message or symptom Possible cause Action
Probe not supported Software not updated To download the most current version of the software,
refer to the applicable product page on the
manufacturer's website.
Refer to the HQd Series meter documentation for more
information.
HQd meter does not sense the
IntelliCAL
®
probe
Contact technical support.
Connect a probe or probe
requires service Probe not connected correctly Disconnect, then connect the probe. Tighten the locking
nut.
Software not updated To download the most current version of the software,
refer to the applicable product page on the
manufacturer's website.
Refer to the HQd Series meter documentation for more
information.
Large number of methods stored
on probe If the probe has a large number of stored methods, more
time is necessary for connection. Do not disconnect the
probe, continue to let the probe connect.
Damaged probe Make sure that there is connectivity with another probe or
meter to confirm isolated issue with probe. Contact
technical support.
pH reading and/or mV reading
is same for all solutions Soaker bottle not removed Remove the soaker bottle.
Electrical issue Contact technical support.
Standard not recognized error Soaker bottle not removed Remove the soaker bottle.
Incorrect buffer or contamination
in the buffer solution Use fresh buffer solution as specified in the method.
Contamination in the filling
solution Drain and replace the filling solution with fresh solution.
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