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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.
With the system temperature
rising, the output switches when
the switch-on point has been
reached (SP1). With the system
temperature falling, the output
does not switch back until the
switch-off point (rP1) 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 (SP1) and the switch-off
point
(rP1),
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 SP1 and rP1. SP1 = upper
value, rP1 = lower value.
Scaling the measuring range (analogue output)
• With the parameter "Lower end of analogue output" (ASP) you can
select the measuring value for which the output signal is 4mA or 0V.
• With the parameter "Upper end of analogue output" (AEP) you can
select the measuring value for which the output signal is 20mA or 10V.
• Minimum distance between ASP and AEP: 50°C / 90°F.
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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