OPERATION
6
97
IFC 300
www.krohne.com
06/2009 - 4000069802 - MA IFC 300 R03 en
No.
Function
Settings / descriptions
C1.2 filter
C1.2
filter
C1.2.1
limitation
Limitation of all flow values, before smoothing by time constant, affects all
outputs.
Settings: -xxx.x / +xxx.x m/s; condition: 1st value < 2nd value
Range 1st value: -100.0 m/s
≤
value
≤
-0.001 m/s
Range 2nd value: +0.001 m/s
≤
value
≤
+100 m/s
C1.2.2
flow direction
Define polarity of flow direction.
forwards (according to the arrow on the measuring sensor) or backwards (in
the opposite direction to the arrow)
C1.2.3
time constant
For all flow measurements and outputs.
xxx.x s; range: 0.0
…
100 s
C1.2.4
pulse filter
Suppresses noise due to solids, air/gas bubbles and sudden changes in pH.
Select: off (without pulse filter) / on (with pulse filter)
C1.2.5
pulse width
Only when pulse filter switched on, Fct. C1.2.4
Length of interference and delays to be suppressed on sudden changes in
flow.
xx.x s; range: 0.01...10 s
C1.2.6
pulse limitation
Dynamic limitation from one measured value to the next, only when pulse
filter switched on, Fct. C1.2.4 effective.
xx.x s; range: 0.01...100 m/s
C1.2.7
noise filter
Suppresses noise at low conductivity, high solids content, air and gas
bubbles, and chemically inhomogeneous media.
Select: off (without noise filter) / on (with noise filter)
C1.2.8
noise level
Range within which changes are evaluated as noise, and outside of which
changes are evaluated as flow (only with noise filter switched on,
Fct. C1.2.7).
xx.xx m/s; range: 0.01...10 m/s
C1.2.9
noise suppression
Set noise suppression (only when noise filter switched on, Fct. C1.2.7).
Range: 1
…
10, noise suppression factor [min = 1...max = 10]
C1.2.10
low flow cutoff
Sets output value of all outputs to "0":
x.xxx
±
x.xxx m/s (ft/s); range: 0.0
…
20 m/s (0.0...32.8 ft/s)
(1st value = switching point / 2nd value = hysteresis),
condition: 2nd value
≤
1st value
.book Page 97 Wednesday, June 10, 2009 4:20 PM
