Functional Description And Operation; Operation And Display Elements - promesstec UDA 50-U Series User Manual

4. Functional description and operation

4.1. Operating and display elements
The display has 3 keys with which you can parameterize the device and call up stored functions
during operation. Functions that can be adjusted or changed are always signaled with a flashing
of the display. The settings made in the parameter level are always confirmed with [P] and thus
saved. However, the display also automatically saves all adjustments and switches to operating
mode if there are no further key operations within 10 seconds.
Key symbol
Program key [P]
Minus key [▼]
Plus key [▲]
A switched on relay or an activated switching point is visually signaled by a lighting of the
respective switching point LED next to the 7-segment display.
A display overflow/underflow is indicated by 4 bars "- - - -".
Example: Setting of device parameters, e.g. selection of input signal
Parameter
Example: Setting numerical values, e.g. measuring range end value
Numerical values are adjusted from the smallest to the largest digit with [▲] [▼] and confirmed
digit-selectively with [P]. A minus sign can only be parameterized on the most significant digit.
After the last digit, the display switches back to the menu level.
Function in operating mode
The program key [P] is used to
switch to parameterization.
The minus key [▼] can be used
to call up the min value or change
a lower limit value, depending on
the key function set.
The plus key [▲] can be used to
call up the max value or change a
lower limit value, depending on
the key function set.
Selection option
Function during parameterization
Change to a lower parameter level or
to the stored value.
Switching between parameters and
changing parameters in the value
level.
Switching between parameters and
changing parameters in the value
level.
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4. Functional description and operation