Resistance Measurements; Diodetest - Würth 0715 53 370 Traduction Des Instructions De Service D'origine

Operation (fig. I)
Alternating / Direct current measure-
ments
Do not perform alternating /
Performing DC voltage measurements
when switching on/off a motor that is
integrated into the circuit: If a voltage
surge occurs, this may damage the
measuring device.
1. Set the function switch [1] to ACV or DCV
position.
2. Connect the two measuring tips [9] to the meas-
urement points.
3 The relevant polarity of the measured value is
indicated together with the current value in the
display [5].

Resistance measurements

In order to prevent electric shock the
device must be disconnected from the
power supply and the capacitors must
be discharged prior to performing
resistance measurements.
1. Set the function switch [1] to Ω position.
2. Connect the measuring tips [9] with the object
to be measured.
3 The resistance value is indicated on the display [5].
Note
When performing a resistance meas-
urement ensure that all measurement
points are free of dirt, oil, solder lac-
quer or similar as otherwise inaccurate
measurements may result.
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Continuity test
Important!
In order to prevent electric shock never
perform continuity tests on live circuits
or lines.
1. Set the function switch [1] to
2. Press the MAX button [3] until the
appears on the display [5].
3. Touch the circuit or conducting wire to be tested
with the measuring tips [9].
4. If the resistance is less than
150 Ω an acoustic alarm sounds.
In case of an open circuit OL is indicated on the
display [5].
Diode test
1. Set the function switch [1] to
2. Press the MAX button until the
pears on the display.
3. Connect the measuring tips [9] to the object to
be measured. In general, forward voltage is in-
dicated by a value between 0.400 to 0.700 V,
and reverse voltage is indicated by OL. In case
of short-circuited devices a value of approx. 0 V
is indicated; in case of devices with open circuit
OL is displayed for both polarities.
Non-contact AC voltage
measurements
Danger!
Prior to using the device, test it for
proper functionality using a circuit that
is known to be live.
1. Move the detector [6] to the live line or insert
it into the current-carrying end of the electrical
connection.
2. If alternating current is present, the display [7]
lights up.
position.
symbol
position.
symbol ap-
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