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4.5 Volumetric flow or temperature monitoring / switching
function
OUTx changes its switching status if it is above or below the set switching limits
(SPx, rPx)� The following switching functions can be selected:
4.5.1 Hysteresis function
Normally open: [OUx] = [Hno]
Normally closed: [OUx] = [Hnc]
First the set point (SPx) is set, then the
reset point (rPx) with the requested
difference�
When SPx is adjusted rPx is
changed automatically; the dif-
ference remains constant�
Example of volumetric flow monitoring
HY = hysteresis
4.5.2 Window function
Normally open: [OUx] = [Fno]
Normally closed: [OUx] = [Fnc]
The width of the window can be set by
means of the difference between SPx
and rPx� SPx = upper value
rPx = lower value�
Example of volumetric flow monitoring
FE = window
