Contacted Current Measurement Up To 600 Ma - VOLTCRAFT VC281 TRMS Mode D'emploi

Proceed as follows to measure alternating currents up to max. 60 A:
- Switch the DMM on and select "A
"DC" will be displayed.
- Press "SELECT" to switch to AC mode. "AC" and "TRMS"
appear on the display. Press the "SELECT" button again
to switch back to DC mode.
- The display is automatically set to zero when the current
clamp is closed in the alternating current measurement
range. The rotary control (T) 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 be-
ing reached. In this case, the offset error remains linear
throughout the measurement range and can be subtract-
ed from the measurement. This will not impair the meas-
urement.
- Press the opening lever (W) to open the current clamp.
The current flow direction does not need to be considered
in AC mode as an alternating field is present.
- 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 dis-
play.
- After measuring, remove the clamp transformer from the measured object and switch both devices off.
i) Contacted current measurement up to 600 mA
Never exceed the maximum permitted input values. Do not touch any circuits or circuit compo-
nents if the circuit has voltages higher than 33 V ACrms or 70 V DC. Danger of death!
The voltage in the measured circuit must not exceed 600 V.
Always start contacted current measurement with the highest measurement range and switch
down to lower ranges if necessary. Before connecting the multimeter and before changing the
measurement range, always de-energise the circuit. All current measurement ranges are provided
with fuses and thus protected against overload.
Never measure currents above 600 mA in the mA/µA range as this will cause the PTC protection
elements to trip.
The µA/mA measurement input has a self-resetting PTC fuse, which means that you do not need to
replace the fuse in the event of an overload.
56
" mode. "A" and