Elma BM 251-252-255-257
side 43
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Non-Contact EF-Detection:
An antenna is located along the top-right end of the
meter, which detects electric field surrounds current-carrying conductors. It is ideal for
tracing live wiring connections, locating wiring breakage and to distinguish between live or
earth connections.
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Probe-Contact EF-Detection:
For more precise indication of live wires, such as
distinguishing between live and ground connections, use the Red (+) test probe for direct
contact measurements.
PC computer interface capabilities
The instrument equips with an optical isolated interface port at the meter back for data
communication. Press HOLD button while turning the meter on to enable meter RS232
output.Optional purchase PC interface kit BRUA20X is required to connect the meter to
the PC computer RS232 or USB ports.
MAX/MIN at Fast 20/s measurement mode
Press REC button momentarily to activate MAX/MIN recording mode. The LCD “MAX MIN”
turn on, and the reading update rate will be increased to 20/second. The meter beeps
when new MAX (maximum) or MIN (minimum) reading is updated. Press the button
momentarily to read the MAX and MIN readings in sequence. Press the button for 1
second or more to exit MAX/MIN recording mode. Auto-ranging remains, and Auto-Power-
Off is disabled automatically in this mode.
