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4.4 Monitoring of temperatures
• The unit detects the current system temperature and shows it on the display
(→ chapter 10.2 Changing the display unit in the Run mode).
4.5 Volumetric flow 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 (fig� 1): [OUx] = [Hno]�
• Hysteresis function / normally closed (fig� 1): [OUx] = [Hnc]�
First the set point (SPx) is set, then the reset point (rPx) at the requested
distance�
• Window function / normally open (fig� 2): [OUx] = [Fno]�
• Window function / normally closed (fig� 2): [OUx] = [Fnc]�
The width of the window can be set by means of the distance between SPx and
rPx� SPx = maximum value, rPx = minimum value�
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2
HY = hysteresis; FE = window
When set to the window function the set and reset points have a fixed hysteresis of 0�25 %
of the final value of the measuring range� This keeps the switching state of the output stable
if the volumetric flow varies slightly�
