Customer-Specific Calibration (Cga); Hysteresis; Window Function - IFM Electronic SU0502 Bedienungsanleitung

Technical information / Functioning / Parameters
Customer-specific
calibration (CGA)

Hysteresis

Window function

Page 26
This calibration changes the slope
of the curve of measured values.
It influences the display and the
analog output.
Calibration is only possible for
values > 25% of the final value
of the measuring range.
It can be reset (→ menu item
CAr).
The hysteresis keeps the switch-
ing state of the output stable if
the flow varies about the preset
value.
When the flow is rising, the out-
put switches when the switch-on
point has been reached (SPx).
When the flow is falling again,
the output switches back when
the switch-off point (rPx) has
been reached.
The hysteresis can be adjusted: First the switch-on point is set, then the
switch-off point with the requested difference.
The window function enables the
monitoring of a defined accept-
able range. When the flow varies
between the switch-on point
(SPx) and the switch-off point
(rPx), the output is switched (win-
dow function/NO)
switched (window function/ NC).
display
48 l/min
40 l/min
32 l/min
A = curve of measured values
without calibration
A1, A2 = curve of measured values
Q
SP
rP
1
0
1
0
acceptable range
Q
SP
rP
or not
1
0
1
0
A1
A
A2
40 l/min
after calibration
hysteresis
t
Hno
Hnc
t
Fno
Fnc
Q