Secondary Functions; Display Lock; Preselection Of Min/Max Mode; Automatic Compensation For Cable Resistance - Chauvin Arnoux F 07 Manual De Instrucciones

3.11 Secondary Functions

3.11.1 Display lock

A short pressing on the HOLD key freezes the display.
A second pressing unlocks the display.

3.11.2 Preselection of MIN/MAX mode

A short pressing on the HOLD key then on the MIN/MAX key
preselects the MIN/MAX mode. A second pressing on the
HOLD key makes the MIN/MAX mode effective.
This function is used to select the MIN/MAX mode upon
request to prevent, for example, the unwanted or mistaken
integration of MIN/MAX values.

3.11.3 Automatic compensation for cable resistance

This compensation is obtained by holding down the HOLD
key when the continuity test or measurement resistance
function is selected.
When the key is released, when the display shows zero, the
correction value is memorised in the clamp.
If the value measured is higher than 2 Ω Ω Ω Ω Ω , this correction is
stopped and the memorised correction value is reset to zero.
This correction is prohibited in MIN/MAX mode.
3.11.4 Automatic compensation of current measurement
zero
This compensation is obtained by holding down the HOLD
key when the current measurement function is selected.
When the key is released, when the display shows zero, the
correction value is memorised in the clamp.
If the value measured is higher than 6 A, this correction is
stopped and the memorised correction value is reset to zero.
This correction is prohibited in MIN/MAX mode.

3.11.5 Manual mode selection AC, DC or AC + DC

By default the clamp switches to AC or DC mode automatically
(AC or DC symbol flashing) for the V and A functions.
Short successive pressures on the yellow key are used to
select manually AC measurement, DC measurement,
measurement of compound signals (AC + DC) and return to
automatic mode.
When the mode is selected manually, the symbol AC, DC or
AC + DC is fixed.
The selection of this manual mode is impossible in MIN/MAX
or HOLD mode.
The selection of AC + DC mode for the adapter function is
not possible.

3.11.6 Selections possible in continuity fonction

By default the clamp is in continuity function ( ) for the
position corresponding to the rotary switch.
Successive presses on the yellow key enable selection of
the resistance measurement (Ω), then the semi conductor
test function ( ) and to return to the continuity function ( ).
39