7
UK
4.5 Volumetric flow or temperature monitoring / switching
function
OUTx changes its switching state if it is above or below the set switching limits
(SPx, rPx)� The following switching functions can be selected:
•
Hysteresis function / normally open (figure 1): [OUx] = [Hno]�
•
Hysteresis function / normally closed (figure 1): [OUx] = [Hnc]�
First the set point (SPx) is set, then the reset point (rPx) with the requested
difference� Note: when SPx is adjusted rPx is changed automatically; the differ-
ence remains constant�
•
Window function / normally open (fig� 2): [OUx] = [Fno]�
•
Window function / normally closed (figure 2): [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�
1
2
HY = hysteresis; FE = window
