Lamar Technologies Alpha C-25 - Manual (Page 17)

4. CALIBRATION AND MAINTENANCE
ALPHA C-25 Manual V2.1.doc Page 17
4.6 MAINTENANCE
Standard electrical equipment maintenance and cleaning procedures should be
followed.
4.6.1 VENTS AND FAN
Regularly check that the rear fan vents are clean to ensure adequate cooling of the
unit. This is especially important when the unit is placed in a dusty or otherwise
dirty air environment.
4.6.2 DC BATTERY CABLES
Inspect DC battery cables and connectors periodically. Replace damaged or worn
cable.
4.6.3 REPLACEMENT OF FUSES
The Alpha C-25 is equipped with three fuses: one 20 ampere AC line fuse and two
35 ampere DC line fuses. See specification in section 6 for the specific types of
fuses required.
WARNING: Disconnect AC voltage and battery before
attempting to replace any fuses.
To replace the AC line fuse unscrew the fuse cover on the rear of the unit and
exchange the old fuse (see picture 1-2 in section 1).
To replace the DC line fuses unscrew the fuse cover just above the DC Line
Connector and exchange the old fuse (see picture 1-1 in section 1).
4.6.4 CLEANING AGENTS
Do not use acetone and other similar cleaning agents on the meters, timer or any
plastic part.