Automation Direct ProSense VFS50-5-1001 Instrukcja obsługi - Strona 5
Przeglądaj online lub pobierz pdf Instrukcja obsługi dla Przyrządy pomiarowe Automation Direct ProSense VFS50-5-1001. Automation Direct ProSense VFS50-5-1001 18 stron. Vortex flow meter
Drukuj stronę4.1 Switching output
OUTx changes its switching status if it is above or below the set switching limits
(flow or temperature). Hysteresis or window function can be selected. Example of
volumetric flow monitoring:
Hysteresis function
SP
rP
SP = set point
rP = reset point
HY = hysteresis
Hno = hysteresis NO (normally open)
Hnc = hysteresis NC (normally closed)
When the hysteresis function is set, the set point [SPx] is defined first and
then the reset point [rPx] which must have a lower value. If only the set
point is changed, the reset point remains constant.
When set to the window function, the upper limit [SPx] and the lower limit
[rPx] have a fixed hysteresis of 0.25 % of the final value of the measuring
range. This keeps the switching status of the output stable if the flow rate
varies slightly.
Window function
FH
FL
SP = upper limit
rP = lower limit
FE = window
Fno = window NO (normally open)
Fnc = window NC (normally closed)
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