BIO RAD PowerPac Universal Power Supply, Instruction Manual

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PowerPac Universal Power Supply Instruction Manual
4.3 Replacing a Fuse
If the power supply is plugged into a working outlet, with the power switch in the ON
position and there is no display, lights or fan operation, a fuse might need to be replaced.
1. Disconnect the power cord from the electrical outlet.
2. Use a fingernail or a flat blade screwdriver to gently press the tabs on the side of the
fuse holder toward each other. This will release the fuse holder and the fuses. See
Figure 7. Inspect the fuses visually to determine if one or both of the fuses failed.
Figure 7. Rear view showing fuse drawer with notches
3. Remove the failed fuse from the fuse holder. Replace it with a 8.0 A, 250 VAC
5 mm x 20 mm fast-blow fuse (Bio-Rad catalog #12008061).
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4. Re-insert the fuse holder into its position. Press the fuse holder gently until it snaps
into place on both sides.
The unit is now ready for use.
NOTE: Repeated fuse failure might indicate a hardware failure. Contact Bio-Rad
Technical Support.
4.4 Expediting Technical Support
Make sure the following information is readily available before contacting Bio-Rad.
Product model : The product model is located on the sticker on the bottom of the
unit (example: PowerPac Universal Power Supply).
Serial number
: The serial number is located on the
sticker on the bottom of the unit. Also the PowerPac
device displays the serial number momentarily after
switching the power ON (example: Serial No: 00002).
Software version
: The PowerPac device displays the
software version momentarily after switching the
power ON (example: Version 1.012).
State clearly the error code, error message, or anomaly. Also note the conditions the
existed at the time the problem originated, including run parameters (V, A, and W), as
well as the electrophoresis cell and buffer system.
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Fuse specifications are applicable to products with a serial number of 042BR30000 and higher.