Troubleshooting - Bartington PSU1 Operation Manual

7. Troubleshooting
The PSU1 is unlikely to suffer any defects in normal use: no internal components are
serviceable. The most likely causes of failure, and their solutions, are detailed in the following
table.
In the event of any apparent malfunction beyond those described in the table below, please email
service@bartington.com, or telephone the Bartington Instruments service team on +44 (0)1993
706565.
Fault
No power output from
the PSU1 (when no mains
connected via the plug-in
charger adaptor)
PSU1 does not charge when
mains connected via the
plug-in charger adaptor
PSU1 does not hold its
charge (reduced battery
operation)
PSU1 makes buzzing sound
Buzzer sounds when
batteries have been
removed
PSU1 stuck in AC or DC
coupling mode
PSU1 stuck in Balanced or
Unbalanced mode
One or both LEDs do not
light correctly
BARTINGTON INSTRUMENTS
Possible Cause
Battery flat
Battery expired
Battery not fitted
None of the above
Failed 12V charger
Battery not fitted
None of the above
Batteries expired
Battery voltage is below 5V
Faulty 12V Charger
Defective Component
Defective component
Defective component
Defective component
Page 14 of 18
Solution
Recharge
Replace batteries and
charge
Fit batteries and charge
Return to Bartington
Instruments for repair
Replace charger
Fit batteries and charge
Return to Bartington
Instruments for repair
Replace batteries and
charge
Recharge
Test charger output is 12V.
Replace charger.
Return to Bartington
Instruments for repair
Return to Bartington
Instruments for repair
Return to Bartington
Instruments for repair
Return to Bartington
Instruments for repair
OM2443/4