Repair And Maintenance Of 300V Power Supply - VWR 250V Manual De Instrucciones

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Repair and Maintenance of 300V Power Supply

The 300V Power Supply requires no periodic maintenance program with the exception of an
occasional dry wipe-down of the instrument.
Encountering Problems
1. Check the troubleshooting section.
2. Contact VWR's Technical Service Department. Their contact information in your area can
be found at www.vwr.com.
3. If the unit must be shipped back for repair, contact your distributor for a Return Authorization
Number and shipping instructions. The unit will be repaired as quickly as possible and
returned to you.
Replacing the Fuse
One extra fuse is supplied with the 300V Power Supply. For additional fuses, contact VWR's
Technical Service department.
To replace the fuse:
1. Turn off the main power switch at the rear of the 300V Power Supply and
detach the power cord.
2. Open the fuse compartment located inside the Power Entry Module by inserting a small flat
blade screwdriver into the slot below the ON/OFF switch. Turn the screwdriver to gently
pry open the fuse compartment.
Note: The fuse compartment will not open with the power cord in place.
3. Pull the fuse holder out of the compartment and inspect the fuse. If the fuse is burned or
there is a break in the fuse element, replace the fuse with an identical type of fuse (4A/250V)
as provided in the fuse holder (see figure below).
4. Place the fuse holder back into the compartment.
5. Snap the cover closed.
6/22/2012
Revision 1.0
12

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