Operator Maintenance, Replacing the Power Line Fuse

Operator Maintenance

	Operator Maintenance
	This section describes how to replace the power line fuse and clean the
	power meter. If you need additional information about replacing parts or
	repairing the power meter, refer to the HP E4418B/E4419B Service
	Guide.
	To clean the power meter, disconnect it’s supply power and wipe with a
	damp cloth only.
	The power line fuse is located within the power meter’s fuse holder
	assembly on the rear panel. For all voltages the power meter uses a 250 V,
	F3.15AH, 20mm fast blow fuse with high breaking capacity (HP part
	number 2110-0957).

Note	The power meter also has an internal fuse. If you suspect that this
	fuse needs replaced it must be done by trained service personnel.
	Please refer to “Returning Your Power Meter for Service”, on
	page 2-80.

Replacing the Power Line Fuse

1.Remove the power cord from the power meter.

2.Slide the fuse holder assembly from the rear panel as shown in Figure 2-23.

3.Install the correct fuse in the “In line” position as shown in Figure 2-23. (A spare fuse can be stored in the fuse holder assembly.)

4.Replace the fuse holder assembly in the rear panel.

In line fuse

Spare fuse

2-80	HP E4419B User’s Guide