VOLTCRAFT VC292 Bedienungsanleitung Seite 82

12.8.2 Measure alternating currents up to max. 60 A
1. Switch the DMM on and select A
2. Press SEL/
The display is automatically
Æ
set to zero when the current
clamp is closed in the alter-
nating current measurement
range.The rotary control has
no function here. It may be
that external influences (e.g.
a strong magnetic field in the
vicinity) prevent a precise
zero position from being
reached. In this case, the
offset error remains linear
throughout the measurement range and can be subtracted from the meas-
urement. This will not impair the measurement.
3. Press the opening lever to open the current clamp. The current flow direction
does not need to be considered in AC mode as an alternating field is present.
4. Surround the conductor that you want to measure and close the current clamp.
Position the conductor in the middle between the two position symbols on the
clamp.
The measured alternating current is indicated on the display.
Æ
5. After measuring, remove the clamp transformer from the measured object and
switch both devices off.
82
to switch to AC mode. "AC" and "TRMS" appear on the display.
mode. "A" and "DC" will be displayed.