11/13/06
Repair and Maintenance of 300V Power Supply
The ENDURO 300 Volt 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 Labnet
’
s Technical Service Department. Their contact information in your
area can be found at www.labnetlink.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 300Volt Power Supply. For additional fuses, contact
Labnet
’
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.
