MD 9070 Insulation/Continuity Digital Multimeter
Operation
12
Connect the probes together to show the residue resistance reading and then press the
ZERO
button momentarily. The LCD will display a zero reading with the annuciator
Δ
turns on. The residue resistance reading is then saved temporarily as offset value for the
that follows until a further function change or power off.
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. 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.
