Uniks C6, Manual

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Tap the " LPF/RAN " button to switch the range of AC voltage.
•
When in the AC voltage automatic measurement, press and hold the
" LPF/RAN " button for about 2 seconds to turn on or off the LPF filter
function. The filter attenuation frequency point is about -0.94dB at
1kHz.
3.3 DC voltage measurement
Connect the probes to the measured signal, the polarity of the
terminal connected to the red probe is displayed on the display. Read the
measurement results.
Caution:
△
If the measured voltage range is unknown in advance, please
set the function range switch to the maximum range, and then
gradually reduce the range until a satisfactory resolution is
achieved.
△
When measuring high voltage, pay special attention to avoid
electric shock.
3.4 AC current measurement
Switch the function range switch to the current position, hold the
trigger, open the clamp, and clamp a wire of the circuit to be tested. The
instrument will display the measured current value.
1. Tap the " SEL " button to switch to display the frequency of current
measurement.
2. Tap the " LPF/RAN " button to switch the AC current range
3. During AC voltage and current automatic measurement, press and hold
the " LPF/RAN " button for more than 2 seconds to turn on or off the
LPF measurement function.