Section 6.0 Maintenance And Troubleshooting; Maintenance; Troubleshooting - BIO RAD PowerPac 1000 Instruction Manual

POWER PAC
6.0 MAINTENANCE AND TROUBLESHOOTING

6.1 MAINTENANCE

PowerPac power supplies require very little maintenance to assure reliable operation. During normal opera-
tion, spills and splashes may cause residues to form on the case. Unplug the power supply. Use a damp
cloth to wash down the outer case. Avoid wetting the connectors located below the front panel and on the
rear of the unit.

6.2 TROUBLESHOOTING

If a system or operator error occurs, the appropriate error message will appear on the LCD display. The
power does not operate when an error message is displayed.
If a no-load or rapid change in resistance error is inadvertently activated, it is possible to temporarily deacti-
vate it. To deactivate, press the number
menu.
Error
Message
RAPID CHANGE IN
RESISTANCE
SYSTEM WAS SHUT DOWN
PRESS CE TO RESET
ARCING WAS DETECTED
SYSTEM WAS SHUT DOWN
CORRECT THE FAULT
PRESS CE TO RESET
GROUND LEAK DETECTED
SYSTEM WAS SHUT DOWN
CORRECT THE FAULT
AND RESTART THE SYSTEM
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key and the key simultaneously to access the deactivation
6 STOP
Solution
An unusually rapid change in resistance was detected during an electro-
phoresis run. This may be due to a leaking cell.
• Check the cell for leaks.
• Reset the power supply by pressing the
screen. The power supply then is ready to run.
System detected electrical arcing (current jumping from one wire to
another) during the run.
• Check the cell for arcing hazards.
• Reset the power supply by pressing the
screen. The power supply then is ready to run.
A ground current leak was detected during the run.
• Check the cell for improper grounding. If the cell is being cooled
with an external chiller, make sure there are no leaks from the
coolant circuit into the cell.
• Restart the power supply by turning the
Maintenance and Troubleshooting
key to return to the last
CE
key to return to the last
CE
switch off and on.
Power
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