AMETEK PLA-PLW - Manual (Page 50)

INPUT TERMINAL CONNECTOR
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There is a shock hazard at the load when using an electronic load with a rated output greater than 40V. To protect
personnel against contact with hazardous voltages, ensure that the load, including connections, has no live parts, which
are accessible. Also ensure that the insulation rating of the source wiring and circuitry is greater than or equal to the
maximum output voltage of the electronic load.
When making connections to the bus bars. Ensure that each terminal’s mounting hardware and wiring assembly are
placed to avoid touching the other terminal and shorting the electronic load input. Heavy connecting cables must have
some form of strain relief to avoid loosening the connections or bending the bus bars.
LOCAL SENSE CONFIGURATION
When the Electronic Load is strapped for local sensing, an unavoidable voltage drop is incurred in the load leads and this
adds to the load regulation. Hence, local sensing is usually used in applications where the lead lengths are relatively short
or load regulation is not critical. Local or remote sense can be set by accessing: MENU
ÆLOAD
CONTROL ÆREMOTE SENSE Æ LOCAL and pressing enter button to confirm.
To meet safety requirement, load wire size should be large enough to carry electric current of the source to the Electronic
Load without overheating. Stranded, copper wires are recommended. The wires should be large enough to limit the
voltage drop to less than 1V per lead. Refer to Table 2.4 for proper wire size selection. Input wire connections are made
to the "+" and "-" terminals on the rear panel of the Load.
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To protect personnel against accidental contact with hazardous voltages, ensure that the load, including connections, have
no live parts, which are accessible. Also ensure that the insulation rating of the load wiring and circuitry is greater than or
equal to the maximum input voltage of the electronic load.
Never touch the input terminal when your hands are wet. Dry your hands first before operate the instrument.
WARNING
WARNING
WARNING
CAUTION
(-)
(+)
DC Power Supply
_
+
USE THE LARGEST GAUGE,
LOWEST INDUCTANCE AND
SHORTEST LENGTH POSSIBLE
PROGRAMMING
ELECTRONIC
LOAD
–
+
2-10