Martindale Electric VT25, Инструкция по эксплуатации

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Removable probe tip covers
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Probe tip protective cover
Polarity indicators
When connected to a DC voltage source
either the + or – polarity LED’s
13
will
illuminate dependant on polarity. The
positive probe
2
is on the main body and is
marked with L2 and +.
When connected to an AC voltage source
both the + and – polarity LED’s will
illuminate.
The polarity LED’s will illuminate when the
voltage source is ≥ 12V AC rms or DC.
Voltage threshold indicators
The voltage threshold LED’s 12 will
illuminate when the magnitude of the voltage
source is at a value approaching or greater
than the corresponding marked voltage.
For example if the voltage source is 55V
AC rms then the 24V and 50V LED’s will
illuminate, if 690V AC rms all voltage
threshold LED’s from 24V to 690V will
illuminate.
ELV warning and single pole test
indicator
If the batteries are low or exhausted a
hazardous live voltage will not be indicated
by the polarity or voltage threshold LED’s,
but an indication of a voltage above the ELV
limit (50V) will continue to be indicated by
the ELV LED
9
.
The ELV LED also indicates the presence of
AC voltage when the unit is used as a single
pole phase detector.
Continuity indicator
The continuity RX LED 10 will illuminate to
indicate continuity of a circuit under test.
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