KROHNE OPTIMASS with MFC 300 EN - Manual (Page 109)

109
Ref Display Description & Settings
C 3.x Current output X ctd...
C3 x.6 Range 0 … xx.xx (format and unit depends on measured variable, see C3 .x.05)
C3 .x.7 Polarity
Both polarities Plus and minus values are used
Positive polarity Negative values are set to 0%
Negative polarity Positive values are set to 0%
Absolute Absolute value is used
Choice of meas. value polarity, note flow direction, see C 1.5.1
C.3.z.8 Limitation ± xxx … ± xxx % (setting range -150 %
a
value
a
+150 %)
C 3.x.9 Low flow cutoff xx.x ± xx.x %
(setting range: 0.0 %…20 %)
1st value = operating point
2nd value = hysteresis
(condition: 2nd value
a
1st value)
C 3.x.10 Time constant xxx.x s
(setting range 000.1 s…100.0 s) Time constant for
Current Output X
C 3.x.11 Special function
OFF: switched off
Automatic range: switched on - for indication
status output accordingly
External range: switched on- for external range change
Activate control input accordingly
C 3.x.12 Threshold
Appears only when Fct. C 3.x.11 activated, see above.
Set switching point for automatic range or external range; defines the
rangeability
xx.x ± xx.x %
(setting range: 5.0 %…80 %)
1st value = operating point
2nd value = hysteresis
(condition: 2nd value
a
1st value)
C 3.x.13 Information
Displays the Serial No, Software No and calibration date of the circuit
board
C 3.x.14 Simulation Sequence, see Test Level Menu, Fct. B 1
C 3.x.15 4mA trimming Set actual value for 4mA.
C 3.x.16 20mA trimming Set actual value for 20mA.
In the following descriptions for the frequency output, "x“ denotes the terminals:
C 3.2 = A
C 3.3 = B C 3.5 = D
C 3.x Frequency output X
C 3.x.1 Pulse shape
Automatic approx. pulse width in [ms] = 500 / (max. pulse rate in
[1/s])
Symmetrical: pulse duty factor approx. 1:1
Fixed set in Fct. C 3.x.2
C 3.x.2 Pulse width
Appears only when "fixed“ activated in Fct. C 3.x.01 Pulse Shape, see
above
xxx.xx ms
(setting range: 0.05…2000 ms) (Note:
max. setting value Tp [ms]
a
500.00 / (max. pulse rate
[1/s] )
C 3.x.3 100 % Puls rate xxxxx.x Hz
(setting range 00000.00…10000.0 Hz)
limitation at 100% pulse rate
a
100 Hz: Imax
a
100 mA
limitation ati 100% pulse rate > 100 Hz:Imax
a
20 mA