Measurement Computing DBK34 - Manual (Page 4)

Environmental Concerns
CAUTION
The DBK34’s batteries contain toxic materials (Pb and H
2
SO
4
). After the battery’s
life cycle is over (up to 500 full cycles or 5-10 years of use), sealed-lead batteries
must be recycled or properly disposed of.
Fuse Replacement
DBK34 contains four glass fuses that can be replaced by the user. Note that you should always check your
unit for blown fuses prior to sending it back to the factory for repair. This could save you time and money.
The following table indicates the probable reason that a particular fuse may have blown, and includes part
numbers and amperage.
Fuse Rating Probable Cause of Blowing Fuse Replacement Fuse
F1 15 A Overload on input power. 15A, 32V, LITTLEFUSE# 311015
F2 8 A Output overload. 8A, 32V, LITTLEFUSE# 312008
F3 8 A Output overload. 8A, 32V, LITTLEFUSE# 312008
F4 8 A Auxiliary Battery overload. 8A, 32V, LITTLEFUSE# 312008
DBK34 Fuse Locations
To replace a fuse:
1. Disconnect the DBK34 from loads and from supply power.
2. Remove the DBK34’s cover plate. This requires the removal of 4 screws.
3. Examine the fuses (F1 through F4) to see which, if any, have blown. Note that you can usually see
the blown element through the fuse’s glass body.
4. Replace the blown fuse with the appropriate replacement fuse (see preceding table).
5. Replace the DBK34 cover and secure with screws (removed in step 2).
DBK34, pg. 4 879795 DBK Option Cards and Modules