54
11. OPERATION
a) HOLD Function
Use the HOLD function to permanently display the current measured value and interrupt
the measurement.
For this, push the button “HOLD” during a measurement (6). The display indicates “HOLD”.
To deactivate, push the button “HOLD” again briefly (6). You may continue the
measurement.
b) NCV-Function (Contact-Free Voltage Recognition)
The NCV function (“non-contact-voltage detection”) leads to contact-free detection of the
presence of voltage at the conductors. The NCV sensor is attached at the top of the
current sensor.
Touch the NCV sensor to a conductor. When voltage is present, the red LED (2) lights up.
This function is only active with the current injection probe on.
¼
The highly sensitive NCV sensor may cause the LED to light up briefly at static
charges as well. This is normal and not a malfunction.
Always test this function at a known voltage source to avoid incorrect detection. There is a
danger of electric shock at incorrect detection!
