II - 10 IX 3131
3. FUNCTIONAL DESCRIPTION
3.1. Starting
Warning
• When measuring within a circuit, the circuit must be de-energized before connecting
the test leads.
• Instruments which are used in dusty environments should be wiped and cleaned
regularly.
• Do not leave the instrument exposed to direct heat from the sun or beat source for
long periods.
• Before removing the cover, ensure that the instrument is disconnected from any circuit
and in power "off" position.
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Note : For optimum precision for all L, C and R measurements at either the
highest or lowest ranges, it is recommended to calibrate the meter
before testing.
3.2. Voltage selection and fuse replacement
Caution : The meter must be completely turned off while replacing the fuse.
3.2.1. Voltage selection and line voltage protective fuse
• Select the power supply voltage with the
two switches on the rear panel.
(see figure 3a).
figure 3a
The protection fuse will be chosen
regarding the power supply voltage
previously. (See figure 3b).
figure 3b
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