YOKOGAWA DR231, User Manual

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13-2
IM DR231-01E
13.2 Replacing the Fuse
WARNING
• The fuse must be of the specified rating (current, voltage, type) to
prevent a fire hazard.
• When replacing the fuse, be sure to turn off the AC power switch and
check that the source of the DC power supply is turned OFF also.
Next, remove the AC power cord, power supply wires, and DC power
supply connector. Then, replace the fuse.
• Never short-circuit the fuse holder.
Fuse Rating
The fuse must have the following specifications:
For AC power supply
Maximum rated voltage: 250 V
Maximum rated current: 2.5 A Type: time-lag
Standard: IEC/VDE certified Part number: A1350EF
For DC power supply
Maximum rated voltage: 250V
Maximum rated current: 6.3A Type: time-lag
Standard: IEC/VDE certified Part number: A1354EF
Replacement procedure
To replace the fuse, proceed as follows:
DR130/DR231 (in case of AC power supply)
1. Turn off the power switch. Turn off the AC power switch also on the rear panel of the DC
power supply model.
2. Unplug the AC power cord from the power outlet.
3. Remove the fuse holder at the side of the AC power connector on the rear panel.
4. Remove the blown fuse from the holder.
5. Insert a new fuse into the holder and then install the holder in place.
DR130 DR130 DC power DR231 DR231 DC power
model model