6
OPERATION
54
IFC 050
www.krohne.com
09/2016 - 4002184003 - MA IFC 050 R03 en
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 the polarity of the flow direction.
Select: normal direction (according to the arrow on the flow sensor) / reverse
direction (in the opposite direction to the arrow)
C1.2.3 time constant
Time constant of all flow measurements.
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) / automatic (with new pulse
filter)
Pulse filter "on":
Pulse filter "on":
Pulse filter "on":
Pulse filter "on": The change from one measurement value to the next one is
limited to the value "pulse limitation" for the total time "pulse width".
This filter allows a faster signal tracking for slowly changing flow values.
Pulse filter "automatic":
Pulse filter "automatic":
Pulse filter "automatic":
Pulse filter "automatic": The raw flow values are collected into a buffer, covering
two times the "pulse width" values. This filter is called "median" filter.
This filter allows a better suppression of pulse shaped disturbances (particles or air
bubbles in very noisy environment).
C1.2.5 pulse width
Length of interference and delays to be suppressed on sudden changes in flow.
Only available, if pulse filter (C1.2.4) is "on" or "automatic".
xx.x s; range for "on": 0.01
…
10 s or for "automatic": 0.1...20 s
C1.2.6 pulse limitation
Dynamic limitation from one measured value to the next; only if pulse filter (C1.2.4)
is "on".
xx.x s; range: 0.01...100 m/s
C1.2.7 low flow cutoff
Sets low flow values to "0"; affects all outputs
x.xxx
±
x.xxx L/h; range: 0.0
…
10 L/h
(1st value = switching point / 2nd value = hysteresis),
condition: 2nd value
≤
1st value
C1.3 empty pipe detection
C1.3.1 empty pipe detect
Select: off / empty pipe (F); empty pipe (S); empty pipe (I)
Flow indication "= 0" when "empty pipe"
C1.3.2 limit empty pipe
Only available if "empty pipe [..]" is activated in C1.3.1.
Range: 0.0
…
9999
μ
S (set about 50% of the lowest occurring conductivity in
operation.
Conductivity below this value means a signal as "empty pipe".
C1.3.3 act. conductivity
Only available if "empty pipe [..]" is activated in C1.3.1.
Actual conductivity is indicated. Activation takes place only after setting mode is
exited!
C1.3.4 time constant
Only available if "empty pipe [..]" is activated in C1.3.1.
Range: xxx.x s; 0.1...100 s
A damping is set for empty pipe detection.
C1.4 information
C1.4.1 liner
Shows the material of the liner.
C1.4.2 electr. material
Shows the material of the electrodes.