Hoefer PS2A200 - Manual (Page 26)

Troubleshooting
Display shows “Open circuit”
• Check that both leads from each electrophoresis
unit are plugged in completely.
• Check that both electrophoresis unit electrodes
contact buffer and that buffer contacts both ends
of the gel.
• Check electrode connections.
• Check for broken leads or electrodes.
No display
• Check that the power supply is plugged into a
working receptacle.
• Check that the main power switch is on.
Unable to change parameter values
• Check that the instrument is in SET mode and that
the cursor is located in the field in which you wish
to adjust the value.
•
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