Relative Value (Zero); Hz Filter; Automatic Shut-Off (Instrument); Backlighting - Chauvin Arnoux F 65 Bedienungsanleitung

3.5. RELATIVE VALUE (ZERO)

It is possible to compare two values, in any function except frequency
measurement, simply by pressing the «ZERO» button.
When the first value is displayed on the screen, press the ZERO
button.
The ZERO symbol then appears on the screen and the display unit
indicates the value zero.
Make your second measurement. The display unit then indicates the
difference between the second value and the first value.
To deactivate this function, press the «ZERO» button again.
This function can be used to compare two voltage measurements (e.g.
to determine a voltage drop) or to correct for the resistance of the
cords when making a resistance measurement.

3.6. 50-60 Hz FILTER

It is possible to filter the signal (when making a current measurement),
in order to display only the fundamental, by a long press on the
«HOLD» button.
The 50/60 Hz symbol ,then appears on the screen.
To deactivate this function and return to measuring over the whole
passband of the instrument, effect another long press on the
«50-60 Hz» button.
The WIDE symbol then appears on the screen.

3.7. AUTOMATIC SHUT-OFF (INSTRUMENT)

The clamp is shut-off automatically after 10 minutes if no operation
is performed.
The symbol indicates that the automatic shut-off mode is
activated.
To deactivate automatic shut-off, hold the «ZERO» button down and
operate the switch.
The symbol disappears from the display unit, indicating that
automatic shut-off is deactivated.

3.8. BACKLIGHTING

Pressing the
The backlighting can be switched off manually by pressing the
key; otherwise, it is switched off automatically after 180 seconds.
key activates backlighting of the display.
26