Table of Contents
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Introduction
This chapter explains how to perform the routine maintenance and calibration tasks
required to keep your Calibrator in optimal operating condition. The tasks covered in this
chapter include the following:
Replacing the fuse
Cleaning the air filter and external surfaces
Verifying the operation of the Calibrator
For intensive maintenance tasks such as troubleshooting or repair, and for all procedures
that require opening the cover of the instrument, contact the Fluke service center.
The Calibrator should be calibrated annually.
Accessing the Fuses
The Calibrator uses fuses to protect both the line-power input and various front-panel
terminals of the Calibrator. The following sections describe the replacement procedures
and lists the appropriate fuses used in the Calibrator.
Line-Power Fuse
The Calibrator has a line-power fuse in series with the power supply. Table 6-1 indicates
the proper fuse for each line voltage selection.
To replace the line power fuse:
1. Unplug the power cord from the Calibrator.
2. Locate the fuse holder labeled "Power Fuse"on the rear panel of the Calibrator (see
Table 3-2, item 2).
3. Using a flat-blade screwdriver in the slot on the end of the fuse holder, unscrew the
fuse holder.
4. Replace the fuse with one rated for the selected line voltage. See Table 6-1.
5. Reinsert the fuse holder and screw it into the socket.
To avoid electric shock or fire, do not use makeshift fuses or
short-circuit the fuse holder.
Line Voltage Selection
115 Volts
230 Volts
XW Warning
Table 6-1. Line Power Fuses
Fuse
T4L250V (5 x 20 mm)
T2L250V (5 x 20 mm)
Operator Maintenance
Fluke Part No.
2743488
2743495
6
Introduction
6-3
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