Keller ITS CellaPort PT 120, Operating Manual, Page: 22 / 72

Operating manual PT 11x, 12x,13x
16
13.1.4 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.1.
CellaPort models PT 110/113 which
have a thermopile sensor also fea
ture „automatic averaging“. This facili-
tates a steady measurement, on the one hand, and enables fast re-
sponse times on the other hand when temperatures become erratic. This
function is activated as a default setting.
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