16
2.4.3. MAKING A MEASUREMENT
Use the leads to connect the device to be tested to the terminals of the instrument. The device to be tested must not be live.
M
mA
R
The instrument makes the measurement directly. It displays the result and
the measurement current.
To obtain a continuity value per standard IEC 61557:
Make a measurement at 200 mA and note its value, R
1
.
Then reverse the leads and note the value R
2
.
Calculate the mean:
M
mA
If an external voltage > 15 V appears during the continuity measurement, the instrument is protected without a fuse. The
continuity measurement is stopped and the instrument reports an error until the voltage disappears.
2.5. RESISTANCE MEASUREMENT
The resistance measurement is made with a weak current and can measure resistances up to 1000 k
Ω
.
R =
R
1
+ R
2
2
V
k
Ω
OFF
Ω
M
Ω
VAR
Set the switch to
k
Ω
.
As for a continuity measurement, connect the device to
be tested to the terminals of the instrument. The device
to be tested must not be live (see § 2.4.3).
k
Содержание C.A 6536
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