Chapter 1 Installation and Maintenance 17
Installing the Multimeter
This section discusses the multimeter's grounding and power requirements
and contains instructions for installing the multimeter. (Refer to Appendix
C for instructions on how to install the switch lockout caps.) Figure 1 shows
the multimeter's rear panel. Many of the rear panel connectors and switches
are referenced in this section.
Grounding
Requirements
The multimeter comes with a three-conductor AC power cable (see Figure 3).
The power cable must be connected to an approved three-contact electrical
outlet that has its ground conductor connected to an electrical ground (safety
ground). The multimeter's power jack and the supplied power cable meet
International Electrotechnical Commission (IEC) safety standards.
WARNING For protection from electrical shock, the power cord ground
must not be defeated.
Line Power
Requirements
You can operate the multimeter from a single phase power source delivering
100 VAC, 120 VAC, 220 VAC, or 240 VAC (all values RMS), at 48 to 440
Hz. The power line voltage can vary by +/- 10% but cannot exceed 250 VAC
RMS. Maximum power consumption is 80 VA (Volt-Amps). The nominal
line voltage values and their corresponding limits are shown in Table 3.
Caution Possible multimeter damage. Before connecting the multimeter
to an AC power source, verify that the multimeter’s line voltage
selection switches are set to match the AC line voltage and that
the proper line fuse is installed. These topics are discussed in
the following sections.
Figure 1. Rear panel
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