10
• The overflow prevention OP is
not
assigned to a separate output! It offers
additional protection and only switches if, as the level rises, one of the output
has not switched even though the corresponding switch point has been
exceeded (e.g. due to application-related malfunctions).
• Typically the overflow prevention OP reacts when the selected measuring
segment has been reached (a few mm before the set OP value).
• The overflow prevention OP reacts immediately and without delay. The set
delay times (e.g. of a switch point directly below) have no effect on the overflow
prevention OP.
• The response of the overflow prevention OP is indicated on the display ("Full"
and indication of the current level change every second).
5.2.3 Display and switching functions
The unit displays the current level, selectable in cm or inches. The set unit of mea-
surement and the switching status of the outputs are indicated by LEDs.
The unit signals via four switching outputs (OUT1...OUT4) that a set limit has
been exceeded or that the level is below the limit. The parameters of the switching
outputs can be set.
• Hysteresis function / normally open (Fig. 5-2): [oux] = [Hno].
• Hysteresis function / normally closed (Fig. 5-2): [oux] = [Hnc].
First the set point [SPx] is set, then the reset point [rPx] with the requested
difference.
The hysteresis for the overflow prevention OP is fixed.
• Window function / normally open (Fig. 5-3): [oux] = [Fno].
• Window function / normally closed (Fig. 5-3): [oux] = [Fnc].
The width of the window can be set by means of the difference between
[FHx] and [FLx]. [FHx] = upper value, [FLx] = lower value.
