Troubleshooting Common Problems - Agilent Technologies 3200P User Manual

3 Troubleshooting and Maintenance

Troubleshooting Common Problems

Table 3 3200P pH Meter troubleshooting
Number Failure mode
1 No display after meter starts
up. The display is not lit up.
2 Display is dim.
3 No buzzing when pressing
key
4 No response when pressing
key
5 Meter does not display 25 °C
when ATC probe is not
connected with meter.
50
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.
Failure cause
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 You may have pressed invalid keys under
the current setup.
2 The buzzer has been damaged.
1 You may have pressed invalid keys under
the current setup.
2 The key has been damaged.
When the meter is not connected with a ATC
probe, the meter will automatically switch to
manual temperature setting.
Solutions
1 Reconnect.
2 Use the required power
supply.
3 Replace the power adaptor.
4 Ensure there is a good
contact.
5 Contact Customer Service.
1 Check the power adapter.
1 The buzzer only sounds
when you press a valid key.
1 Press the valid key for
operation.
Manually input the correct
solution temperature.
3200P pH Meter User Guide