Martel Electronics 3001 - Manual (Page 81)

11. Maintenance
11.1 Cleaning the Calibrator
Warning
To avoid personal injury and/or damage to the Calibrator, use only the specified
replacement parts and do not allow water into the case.
Caution
To avoid damaging the case, do not use solvents or abrasive cleaners.
Clean the calibrator and pressure modules with a soft cloth dampened with water, or mild
soap and water.
11.2 Replacing a Line Fuse
Warning
To avoid electrical shock hazard disconnect line power before opening the case or
fuse compartment.
The line power fuses and line voltage selector are located in the compartment above the
power switch on the right rear of the Calibrator. See the rear panel layout in section 2.5.
Table 10 shows the correct replacement fuse for each line voltage setting.
Table 10 - Replacement Fuses
Fuse Description Line Voltage Setting
0.25 A/250 V fast 120 V (90 V to 132 V)
0.125 A/250 V fast 240 V (198 V to 264 V)
To check or replace a fuse:
1. Disconnect the line power.
2. Using the blade of a suitable flat screwdriver, pry up the tab at the base of the
line fuse compartment by inserting the blade in the center slot under the tab.
The compartment cover will pop part way out.
3. Remove the compartment cover. The fuses come out with the compartment
cover and can easily be checked or replaced.
4. To reinstall the fuse holder, push the compartment cover back into the
compartment until the tab locks in place.
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