B+K precision 5490C Series, Руководство пользователя

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6
Getting Started
Before connecting and powering up the instrument, please review the instructions in this chapter.
2.1 Input Power and Fuse Requirements
The 5490C Series digital multimeters can operate on 110 V or 220 V with +/-10% tolerance at 60 Hz or
50 Hz. Before powering the instrument, please check for the correct power input setup that
corresponds to the line voltage to be used for operation. Note the label on the rear panel of the
instrument as shown below:
RATING FUSE
~ 110V/60Hz T1 AL
~ 220 V/50Hz T500mAL
Table 2.1 – Fuse Table
Before connecting to an AC outlet or external power source, verify that the AC power cord, including
the extension line, is compatible with the rated voltage/current and that there is sufficient circuit
capacity for the power supply. Once verified, connect the cable firmly.
The included AC power cord is safety certified for this
instrument operating in rated range. To change a
cable or add an extension cable, be sure that it can
meet the required power ratings for this instrument.
Any misuse with wrong or unsafe cables will void the
warranty.
SHOCK HAZARD:
The power cord provides a chassis ground through a
third conductor. Verify that your power outlet is of the
three-conductor type with the correct pin connected
to earth ground.