50 3200P pH Meter User Guide
3 Troubleshooting and Maintenance
Troubleshooting Common Problems
Table 3 lists common problems, possible causes, and how to
resolve them.
Note that improper operation of the electrode will lead to
abnormal readings. During measurement, soak the electrode
tip completely in solution. The location of the electrode in
the solution should have good mobility.
Tab le 3 3200P pH Meter troubleshooting
Number Failure mode Failure cause Solutions
1 No display after meter starts
up. The display is not lit up.
1 Power adaptor not installed correctly.
2 The power supply does not meet with the
requirements.
3 The power adaptor is damaged.
4 The power socket has poor contact.
5 The LCD is damaged (After start up for a
few minutes, the user can hear a buzzing
sound after pressing [On/Off] key, but
there is no display on LCD.)
1 Reconnect.
2 Use the required power
supply.
3 Replace the power adaptor.
4 Ensure there is a good
contact.
5 Contact Customer Service.
2Display is dim. 1 Check the power adapter.
3 No buzzing when pressing
key
1 You may have pressed invalid keys under
the current setup.
2 The buzzer has been damaged.
1 The buzzer only sounds
when you press a valid key.
4 No response when pressing
key
1 You may have pressed invalid keys under
the current setup.
2 The key has been damaged.
1 Press the valid key for
operation.
5 Meter does not display 25 °C
when ATC probe is not
connected with meter.
When the meter is not connected with a ATC
probe, the meter will automatically switch to
manual temperature setting.
Manually input the correct
solution temperature.
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