Smooth Button; L M Button; Set- Up Function - Chauvin Arnoux C.A 6541 Notice De Fonctionnement

4.5

/ SMOOTH Button

I I I I I First function
Used to select the desired parameter to be modified – the selected parameter flashes.
It is modified using the
I I I I I Second function SMOOTH
Used to activate a digital filter for insulation measurement. It only has an effect on the displayed values
(which are smoothed) and not the actual measurements.
This function is useful for instances when the displayed insulation values are highly unstable, brought
about due to a capacitive component in the tested element for example.
L
4.6 Button
M
This function is used to change the flashing parameters being displayed, or to consult R (t) values (see
§ 4.3).
As a general rule, two figures (day, month, hour , min., sec., OBJ, TEST) flash.
The L L L L L and M M M M M functions have a "follow-on" mode, i.e.: as soon as the high or low modification limit is
reached, the parameter to be modified switches automatically to the following low or high limit.
I I I I I First function L L L L L : By pressing the button briefly, the displayed number can be increased unit by
unit.
When pressed for a longer time, the number is increased at a faster rate.
I I I I I Second function M M M M M : By pressing the button briefly, the displayed number can be decreased unit by
unit.
When pressed for a longer time, the number is decreased at a faster rate.
Unlike all the other second functions of other buttons, it is not necessary to press the
each time to get to the M function. The
function (only), as long as the user does not deactivate it by pressing
4.7

SET- UP function

This function, found on the rotary selector switch, is used to alter the device configuration by directly
accessing the parameters to be modified.
After having selected SET-UP with the rotary selector switch:
- all the display segments are lit up for 1 second,
- the software version number is displayed
- the instrument serial number is displayed
- PUSH comes up on the small display and btn on the main display, inviting the operator to press a
button.
The SET-UP function is used to directly access the parameters to be modified, by pressing the
corresponding button:
- After having pressed a button, the figures or the symbols corresponding to the selected function
appear on the screen.
- The figures or the symbols that can be modified flash on the screen. The usual modification procedure
using the and L buttons should be followed.
M
- All the parameters are immediately and permanently saved.
The table on the following page defines the buttons that are functional when in SET-UP, and the
corresponding display with the possible range of adjustment.
L
button (see § 4.6).
M
symbol remains displayed and thus valid for the M
2nd
44
2nd
or another button.
2nd
button