7
into the LOCKED position as shown in Figure. Confirm that the sensor head is properly closed.
Degaussing and Zero Setting
When the key is pressed, the probe will demagnetize the core and set the output to zero voltage if
it has been magnetized by switching the power on and off, or by an excessive input. Always carry out
demagnetizing and Zero Setting before measurement and without current in the clamp. The
demagnetizing and Zero Setting process takes about a few seconds. During demagnetizing and Zero
Setting, a demagnetizing waveform is output.
If degaussing and Zero Setting succeeds, the buzzer will make two short beeps. If degaussing and
Zero Setting failed, the buzzer will make a single sound, for one second.
Do not demagnetize while the conductor being measured is clamped. This could damage the
components of the circuit being measured. Also, check that the conductor being measured is not
clamped when supplying power to the current probe for the same reason. Demagnetized waveforms are
generated when switching on the supply.
Measurement
Press the opening lever to open the sensor head.
Align the sensor so that the probe’s current direction indication corresponds to the direction of
current flow through the conductor to be measured. Also, align the clamp so that the conductor is
in the center of the sensor aperture.
Press the opening lever on the sensor head until the UNLOCK indication disappears. Check that
the opening lever is firmly locked, and the sensor head securely closed.
4.
Safe Probing
This device is designed to comply with Safety Standards and has been thoroughly tested for safety prior
to shipment. However, mishandling during use could result in injury or death, as well as damage to the
device. Be certain that you understand the instructions and precautions in the manual before use. We
disclaim any responsibility for accidents or injuries not resulting directly from device defects.
To avoid short circuits and potentially life-threatening hazards, follow these warnings and precautions:
Never attach the clamp to a circuit that operates over the maximum rated voltage to earth.
Please avoid clamping around bare conductors during measurement.
While clamping and measuring, do not touch the clamp in front of the barrier or the
conductor being measured.
Be careful to avoid damaging the insulation surface while taking measurements.
