Brymen BM876, Руководство пользователя

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12
Insulation Resistance function
WARNING
The LCD icons
used together throughout in this manual is referred as active
measurements of Insulation Resistance function through the activation of the
TEST
button on the meter or on the Remote Probe. The sources a user selectable
test voltage of 50V, 100V, 250V, 500V or 1000V to measure Insulation Resistance
values. The
in a flashing manner warns against test voltage is being output. Use
extreme caution when operating the to avoid electric shock.
is inhibited when the meter sounds 3-beeps and displays the detected voltage
value plus warning against energized circuit of more than 30V is being connected,
before the is active. Measurements shall only be carried out on parts of an
installation or equipment that are de-energized.
Connecting to energized circuits when the is active will produce false results
and may damage the instrument. Always check with voltage functions and remove
power from the circuits before carrying out the
.
Setup as illustrated below.
Select an intended test voltage of 50V, 100V, 250V, 500V or 1000V. For model 878,
press the
RANGE (Test Voltage) button momentarily to select the voltage in sequence.
Last selection will be saved as power up default for repeat measurement convenience.
For Models 877 or 876, turn the Rotary Knob directly to select the intended voltage
instead.
The secondary display shows the selected voltage for 1 second right after the selection,
and then displays the actual detected voltage readings. The voltage annunciator by the
secondary display remains indicating the voltage selected.