6
OPERATION
56
IFC 050
www.krohne.com
09/2016 - 4002184003 - MA IFC 050 R03 en
C2.2.11 20mA trimming
Trimming of the current at 20 mA.
Reset to 20 mA restores the factory calibration.
Used for HART
®
setting.
C2.3 frequency out X
C2.3.1 pulse shape
Specify the pulse shape.
Select: symmetric (about 50% on and 50% off) / automatic (constant pulse with
about 50% on and 50% off at 100% pulse rate) / fixed (fixed pulse rate; for setting
refer to "C2.3.3 100% pulse rate")
C2.3.2 pulse width
Only available if set to "fixed" in C2.3.1.
Range: 0.05
…
2000 ms
Note: max. setting value Tp [ms]
≤
500 / max. pulse rate [1/s], gives the pulse
width = time where the output is activated
C2.3.3 100% pulse rate
Pulse rate for 100% of the measuring range.
Range: 1
…
10000 Hz
Limitation 100% pulse rate
≤
100/s: I
max
≤
100 mA
Limitation 100% pulse rate > 100/s: I
max
≤
20 mA
C2.3.4 polarity
Set polarity; please note flow direction in C1.2.2!
Select: both polarities (plus and minus values are displayed) / positive polarity
(display for negative values = 0) / negative polarity (display for positive values = 0) /
absolute value (always displays positive, with both negative and positive values)
C2.3.5 low flow cutoff
Sets the measurement to "0" for low values.
x.xxx
±
x.xxx L/h; range: 0.0
…
20 L/h
(1st value = switching point / 2nd value = hysteresis),
condition: 2nd value
≤
1st value
C2.3.6 time constant
Range: 000.1
…
100 s
C2.3.7 invert signal
Select: off (activated output: switch closed) / on (activated output: switch open)
C2.3.8 information
Serial number of the I/O board, software version number and production date of the
circuit board.
C2.3.9 simulation
For sequence refer to "B1.3 frequency out D".
Function
Setting / Description