Alternating Current Measurement; Direct Current Measurement - Würth MM 50 Traducción Del Manual De Instrucciones De Servicio Original

Alternating current measurement

▸
Set the selector switch [9] to V~.
▸
Plug the black measuring lead into the COM jack [5].
▸
Plug the red measuring lead into the V/Ω input
jack [6].
▸
Connect the measuring leads to the test object.
The multimeter automatically searches for the most
3
favourable measurement range.
The measurement result is output at the display [1].
3
AC voltage
Measuring Resolution
range
400 mV 0.1 mV
400 mV 0.1 mV
4 V 1 mV
40 V 10 mV
50 V 100 mV
Input resistance: 10 MΩ.
Overvoltage protection: 120 V

Direct current measurement

▸
Set the selector switch [9] measuring range to
mA or A .
▸
Plug the black measuring lead into the COM jack [5].
▸
Plug the red measuring lead into the mA meas-
uring jack [8] or the 20 A jack [7].
Attention !
For a current above 400 mA, the 20 A measuring
jack [7]must be used!
▸
Connect the measuring leads to the test object.
The multimeter automatically searches for the most
3
favourable measurement range.
The measurement result is output at the display
3
[1]. The current direction is indicated by the lead-
ing sign.
Direct current
Measuring Resolution
range
40 μA 10 μA
400 μA 100 μA
4 A 1 mA
* 10 mA
20 A
18
Accuracy
± 1.5 % rdg + 6 d
± 0.8 % rdg + 8 d
RMS
Accuracy
± 1.0 % rdg + 5 d
± 1.2 % rdg + 10 d
Attention !
*To protect the device against overheating, allow
a pause of 15 minutes for cooling after measuring
for a period of no more than 10 seconds.
Overload protection:
• The mA range is protected by a 400 mA self-
resetting fuse.
• Observe the maximum duty cycle in the 20 A
range. Fuse: F 20 A
Alternating current measurement
▸
Set the selector switch [9] measuring range to
"mA" or "A".
▸
Plug the black measuring lead into the COM jack [5].
▸
Plug the red measuring lead into the mA meas-
uring jack [8] or the 20 A jack [7].
Attention !
For a current above 400 mA, the 20 A measuring
jack [7]must be used!
▸
Connect the measuring leads to the test object.
The multimeter automatically searches for the most
3
favourable measurement range.
The measurement result is output at the display [1].
3
Attention !
To protect the device against overheating, allow a
pause of 15 minutes for cooling after measuring
for a period of no more than 10 seconds.
Alternating current
Measuring Resolution
range
40 mA 10 μA
400 mA 100 μA
4 mA 1 mA
*
10 mA
20 A
Attention !
To protect the device against overheating, allow a
pause of 15 minutes for cooling after measuring
for a period of no more than 10 seconds.
Overload protection:
• The mA range is protected by a 400 mA self-
resetting fuse.
• Observe the maximum duty cycle in the 20 A
range. Fuse: F 20 A
Accuracy
± 1.2 % rdg + 8 d
± 2.0 % rdg + 5 d