IM 253401-01E
14-13
14
Adjustment, Calibration and Trouble-Shooting
14.5 Replacing the Fuse (for WT130)
When replacing the fuse of the WT130, carry out the procedure described below.
WARNING
• The fuse used must be of the specified rating (current, voltage, type) in
order to prevent a fire hazard.
• Make sure to turn OFF the power switch and to unplug the power cord from
its source before replacing the fuse.
• Never short-circuit the fuse holder.
Fuse Ratings
The fuse used in the WT130 has the following specifications.
100V/200V Common
Maximum rated voltage : 250V
Maximum rate current : 0.5A
Type : Time-lag
Approved standard : UL/VDE
Parts number : A1346EF
Replacing Procedure
Replace the fuse as follows.
1 Turn the power switch OFF.
2 Unplug the power cord from the power connector.
3 Place the tip of a flat-blade screwdriver in to the slot of the fuse holder, and move the
screwdriver in the direction of the arrow to remove the fuse holder.
4 Remove the blown fuse.
5 Insert a new fuse into the holder, then install the holder in place.
Note
The fuse used in the WT110 can not be replaced by the user, because of the fuse inside the case. If you
believe the fuse is blown, please contact your nearest YOKOGAWA representative listed on the back
cover of this manual. The ratings of the fuses used inside the case are indicated below.
Location Max. rated voltage Max. rated current Type Approved standard Part No.
Main board 250 V 1 A Time lag UL/VDE S9564VK
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