Product Manual

Maintenance
Introduction 7
7-3
Introduction
This chapter tells you how to do the usual maintenance and tasks necessary to keep the
Product in service.
XWWarnings
To prevent possible electrical shock, fire, or personal injury:
• Have an approved technician repair the Product.
• Disconnect the mains power cord before you remove the
Product covers.
• Do not operate the Product with covers removed or the case
open. Hazardous voltage exposure is possible.
• Use only specified replacement parts.
Clean the Calibrator
Clean the Calibrator and pressure modules with a soft cloth dampened with water, or
mild soap and water.
Replace a Line Fuse
The line power fuses and line voltage selector are found in the compartment above the
power switch on the right rear side of the Calibrator. See the rear-panel layout in
Chapter 1.
Table 7-1 shows the correct replacement fuse for each line voltage setting.
Table 7-1. Replacement Fuses
Fuse Description Line Voltage Setting
W 0.25 A/250 V (SB) 120 V (100 V to 120 V) ±10 % about setting
W 0.125 A/250 V (SB) 220 V (198 V to 240 V) ±10 % about setting
WTo ensure safety, use exact replacement only.
To examine or replace a fuse:
1. Disconnect the line power.
2. Use the blade of a flat screwdriver to pry up the tab at the base of the line fuse
compartment. Insert the blade into the center slot under the tab. The compartment
cover will come part way out.
3. Remove the compartment cover. The fuses come out with the compartment cover and
can easily be examined or replaced.
4. To install the fuse holder, push the compartment cover back into the compartment
until the tab locks in position.
Change the Line Voltage
The Calibrator comes from the factory configured for the line voltage applicable for the
country of purchase, or as specified when it is ordered. To verify the line voltage setting,
examine the line voltage indicator on the power line fuse compartment cover.
Make sure that the line voltage selection is set for 120 V for line voltages between 100 V