Electric-meter Tester
Overall rating: (N/A)
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Tests accuracy of meters used for recording electric curernt
consumption and makes necessary adjustments, using following
methods: (1) Connects meter to standard (specially calibrated
electric meter mechanism) and adjusts standard's dials to meter
being tested. Pushes switch and allows needle on standard to
revolve specified number of turns or for clocked period.
Compares meter and standard calibrated dials to ascertain
accuracy of meter. (2) Connects testing instruments, such as
wattmeter, voltmeter, and ammeter, across coils of meter and
allows load to pass thruogh meter for clocked period. Computes
watt-hours of current consumed, using instrument reaidngs and
time factor.
Compares watt-hour comuptations with dial on tested
meter to determine meter accuracy.
Adjutss meters by loosening
or tightening screws, using screwdriver. Inspcets wiring of
installed meters for improper connections or diversions of
current. May make minor repairs and recommend meter removal for
major repair. May clean mechanism with solution and small brush.
May calculate inaccurate meter variations from standrad. May set
up auxiliary equipment to route current around installed meter
during testing to avoid interruption to service.
Does not
perform tests on inaccurate meters to diagnose malfunctioning if
inaccuracy cannot be corrected by screw adjustment [Inside-Meter
Tester (utilities) 729.281-034].May be designated according to
types of meters tested as Meter Tester, Demand Meters
(utilities); Meter Tester, Polyphase (utilities); Meter Tester,
Primary utilities); Meter Tester, Single Phase (utilitie
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Electric-Meter Tester
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