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Hysteresis:
The hysteresis keeps the switch-
ing state of the outputs stable if
the system temperature varies
about the preset value.
When the system temperature is
rising, the output switches when
the switch-on point has been
reached (SPx); when the system
temperature 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.
Window function:
The window function enables
the monitoring of a defined
acceptable range.
When the system temperature
varies between the switch-on
point (SPx) and the switch-off
point
(rPx),
switched (window function/NO)
or not switched (window func-
tion/NC).
The width of the window can be set by means of the difference
between SPx and rPx. SPx = upper value, rPx = lower value.
All manuals and user guides at all-guides.com
the
output
T
SP
rP
1
0
1
acceptable range
T
SP
rP
is
1
0
1
0
hysteresis
t
Hno
Hnc
t
Fno
Fnc
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