Maintenance And Troubleshooting; Maintenance; Troubleshooting; Basic Troubleshooting - BIO RAD PowerPac Instruction Manual

Section 4

Maintenance and Troubleshooting

4.1 Maintenance

The PowerPac HC requires little maintenance to assure reliable operation. To
clean the case, first unplug the power supply. Use a damp cloth to wipe down the
outer case. Ethanol may be used to wipe the case, however, prolonged contact or
use may cloud the green translucent case.

4.2 Troubleshooting

4.2.1 Basic Troubleshooting

Problem
No display/lights/fan
Repeated blown fuses Hardware failure
Leads from cell are
not long enough to fit
output jacks
4.2.2 Power Failure Detection (PFd)
Power failure related messages provide information in the event of a power
interruption during a run. The power supply and the electrophoresis cell are not at
fault, and there is no actual corrective action.
The power failure detection default setting is OFF. That means that if a power
outage occurs during a run, the run will be aborted and the run parameters will be
lost. According to the application and user preferences, PFd may be turned ON,
which will enable the PowerPac HC to resume the run automatically when power is
restored.
Cause
1. No AC power.
2. Blown fuse.
Output terminals for the
PowerPac HC are
recessed 16 mm to
meet safety regulations.
Some leads are not
long enough to make
electrical connection.
8
Solution
1. Check if PowerPac HC is unplugged,
or problem with AC power source,
or power switch is in off position "O".
2. Replace fuse. See Section 4.3 for
details.
Contact Bio-Rad Technical Resources.
Use the PowerPac Adaptor,
(Catalog number 165-5061) which
accommodates most standard 4 mm
banana plugs, to make a secure
electrical connection.
Note: Use of the PowerPac Adaptor
voids EN61010 safety provisions.