Elma Instruments BM076, Руководство пользователя

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Elma 076
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Electric Field EF-Detection
The meter displays “EF” when it is ready. Signal strength is indicated as a series of bar-
graph
segments on the display together with variable beep tones.
s
●
Non-Contact EF-Detection: An
antenna is located along the top-
right end of the stationary clamp
jaw, which detects electric field
surrounds energized conductors.
It is ideal for tracing live wiring
connections, locating wiring
breakage and to distinguish
between live or earth
connections.
●
Probe-Contact EF-Detection: For
more precise indication of live wires, such as distinguishing
between Live and Ground connections, use one single probe
to test via terminal COM for direct contact EF-Detection with best
sensitivity.
CAUTION & WARNING for Non-Invasive (Clamp-on) Current Measurements:
CAUTION
(Application and Removal of the Clamp-on Jaws) For non-invasive current measurements,
press the jaw trigger and clamp the jaws around conductor(s) of only one single pole of a
circuit for load current measurement. Make sure the jaws are completely closed, or else it
will introduce measurement errors. Enclosing conductor(s) of more than one pole of a
circuit may result in differential current (like identifying leakage current) measurement.
Align the conductor(s) to the Jaws center indicators (Regular or amptip™ indicators where
applicable) as much as possible to get the best measuring accuracy. For removal, press
the jaw trigger and remove the jaws from the conductor(s).
Adjacent current-carrying devices such as transformers, motors and conductor wires may
affect measurement accuracy. Keep the jaws away from them as much as possible to
minimize influence.
WARNING
Do not use the meter to measure currents above the rated frequency (400Hz). Circulating
currents may cause the magnetic circuits of the Jaws reach a hazardous temperature.
Non-Invasive amptip
tm
Low-Current Functions: