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5725A
Instruction Manual
2-8
Accessing the Fuse 2-8.
wCaution
To prevent instrument damage, verify that the correct fuse is
installed for the line voltage setting. Acceptable fuse types are
Bussman type MTH or Littelfuse type 312 or equivalent, of the
appropriate amperage rating. Use only a 4A, 250V fast-blow
fuse when the line voltage selection switches are set in the
range 200-240V.
Note
A spare 4A, 250V fuse is shipped with the 5725A to ensure that one is
available for use on the 200-240V range.
The line power fuse is accessible on the rear panel. The fuse rating label to the right of
the fuse holder (labeled FUSE) shows the correct replacement fuse rating for each line
voltage setting. To check or replace the fuse, refer to Figure 2-4 and proceed as follows:
1. Turn off the POWER switch and disconnect the line power cord from ac line power.
2. Insert the blade of a standard screwdriver in the slot of the fuse holder labeled FUSE.
3. Turn the screwdriver counterclockwise until the cap and fuse pop free.
4. To reinstall the fuse, reverse this procedure.
100V
110V
115V
120V
S2 S3 S4
VOLTAGE
SELECTION
FUSE
F8A 250V
(FAST)
200V
220V
230V
240V
S2 S3 S4
F4A 250V
(FAST)
JOHN FLUKE MFG. CO., INC.
MADE IN U.S.A.
PATENTS PENDING
NO INTERNAL USER SERVICEABLE
PARTS REFER SERVICE TO
QUALIFIED SERVICE PERSONNEL
TO CLEAN FILTER
REMOVE FROM INSTRUMENT
AND FLUSH WITH WARM
SOAPY WATER
5700A CALIBRATOR
20V PK
MAX
CHASSIS
GROUND
FUSE
WARNING
GROUNDING
CONNECTOR IN POWER CORD
MUST BE CONNECTED TO
ENSURE PROTECTION FROM
ELECTRONIC SHOCK.
47-63 Hz
750VA MAX
CAUTION
FOR FIRE PROTECTION
REPLACE ONLY WITH A 250V FUSE
OF INDICATED RATING.
S4S3S2
11A MAX
HI
LO
CALIBRATION
ENABLE NORMAL
CURRENT
OUTPUT
!
!
!
aq5f.eps
Figure 2-4. Accessing the Fuse