Relative Values (Zero); 50-60Hz Filter; Automatic Shut-Off (Instrument); Backlighting - PCE Instruments F 65 Bedienungsanleitung

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displayed on the screen. To deactivate this function,
press the "HOLD" button again.

3.5. Relative values (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. 50-60Hz 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 50/60Hz 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 "50-60Hz" 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 key activates backlighting of the display.
The backlighting can be switched off manually by
pressing the key; otherwise, it is switched off
automatically after 180 seconds.
4.

FUNCTIONAL DESCRIPTION

4.1. Alternating current measurement (A range)

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