Device Functions; Reset; Max./Min - Magnet-physik EF 14 Operating Instructions Manual

Electronic Fluxmeter EF 14

4 Device Functions

All key and menu functions are described in detail in this chapter.
The most important menus are invoked by the function keys (0 – 9). The names of the menus
are assigned above the keys. Some less frequently needed menus can be accessed via a selection
that is invoked by the Mode key. The menus and functions are then selected by the arrow keys
(←, →) and accessed with Enter.
In all menus the name of the menu is shown in the first line. In the second line follow operation
hints.
If a menu is entered, the EF 14 stops measuring. Then it is also not possible to read a measured
value from the computer interface.
If the EF 14 is remotely controlled via the interface (remote operation) the menus, except the
Mode selection, cannot be entered from the keypad. The remote operation can be identified by
an R in the upper right corner of the display.

4.1 Reset

The function Reset sets in DC mode the displayed measuring value, all maximum values
(Max., Min., Peak) and the analog output back at zero. Normally the Reset key is always
pressed in DC mode before a measurement is carried out.
In AC mode Reset sets only the maximum values (Max., Peak) to zero.

4.2 Max./Min.

If the Max./Min. key is pressed once, the absolute value of the maximum is shown in the line
below the measured value. The maximum is the highest reading that was captured since the
Reset key was pressed last. Only the absolute value is evaluated, the sign is ignored.
Fig. 4.2.1: Display of the absolute value of the maximum
If the Max./Min. key is pressed a second time, the maximum, the minimum and the difference
between maximum and minimum are shown. The maximum is the highest reading that was
captured since the Reset key was pressed last. The minimum is the lowest reading that was
captured since the Reset key was pressed last. Here the sign of the readings is taken into
account. This display is not available in AC-RMS operation, as the root mean square is always
positive by definition.
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BA – no.: 100514EBA02 December 9 , 2020 Page 21