Siemens Ardoptix PT 140 AF1, Operating Manual, Page: 24 / 68

s
Operating manual
16
individually with a minimum of 2 and a maximum of 10 interpolating
points (X/Y nodes). This information is stored in a user-defined tempera-
ture-indexed lookup table and used for signal conditioning. For values
lower than the 1st node and higher than the last node, the first and last
linear segments are extrapolated. Enter the nodes in ascending order.
Use the rear panel display to access this function via
C001
/
LIN.1.
15.1.4 Smoothing function
When the target object’s temperature is erratic, it makes sense to
smooth these temperature fluctuations in order to stabilize the signal.
The greater the time constant t
98,
(user-definable), the lower the effect of
these fluctuations on the yielded temper
ature reading. The pyrometer’s
response time is proportional to the time constant. Set signal smoothing
via parameter
C001
/
FIL.Q
.
analogue
output
signal
time
output signal without
smoothing
output signal with
smoothing
X4
X3
X1 X2
Y1
Y2
Y3
Y4
1
Temperature before offset
Temp
e
ra
tu
re
a
ft
e
r
o
ff
s
e
t