KROHNE IFC 100 Converter EN - Manual (Page 59)

OPERATION
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IFC 100
www.krohne.com 07/2010 - 4000041004 - MA IFC 100 R04 en
C2. .9 low flow cutoff Sets output value to "0"
x.xxx ± x.xxx%; range: 0.0…20%
(1st value = switching point / 2nd value = hysteresis),
condition: 2nd value ≤ 1st value
C2. .10 time constant Range: 000.1…100 s
C2. .11 special function Select: off (switched off) /
automatic range (range is changed automatically, extended lower range,
only makes sense together with a status output)
C2. .12 threshold Appears only when Fct. C2. .11 threshold is activated between extended
and normal range. The automatic range function always changes from the
extended to the normal range when the 100% current is reached.
The upper 100% value of the hysteresis is then = 0. The threshold is then the
hysteresis value, instead of "threshold ± hysteresis" as shown in the display.
Range: 5.0…80%
(1st value = switching point / 2nd value = hysteresis),
condition: 2nd value ≤ 1st value
C2. .13 information Serial number of the I/O circuit board, software version number and
production date of the circuit board
C2. .14 simulation Sequence see B1. current out X
C2. .15 4mA trimming Trimming of the current at 4 mA
Reset to 4 mA restores the factory calibration.
Used for HART ® setting.
C2. .16 20mA trimming Trimming of the current at 20 mA
Reset to 20 mA restores the factory calibration.
Used for HART ® setting.
C2. frequency out X
C2. frequency out X X stands for connection terminals D
stands for Fct. no. C2.5 (D)
C2. .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,
setting see below Fct. C2. .3 100% pulse rate)
C2. .2 pulse width Only available if set to "fixed" in Fct. C2. .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. .3 100% pulse rate Pulse rate for 100% of the measuring range.
Range: 0.0…10000 1/s
Limitation 100% pulse rate ≤ 100/s: I
max
≤ 100 mA
Limitation 100% pulse rate > 100/s: I
max
≤ 20 mA
C2. .4 measurement Measurements for activating the output.
Select: volume flow / mass flow / diagnosis value / flow speed / coil
temperature / conductivity
C2. .5 rangemeasurement range 0…100% of the measurement set in fct. C2. .4
0…xx.xx _ _ _ (format and unit depend on the measurement, see above)
No. Function Settings / descriptions
.book Page 59 Friday, July 9, 2010 12:29 PM