KROHNE MFC 300 EN - Manual (Page 85)

OPERATION
6
85
MFC 300
www.krohne.com 02/2012 - 4000498602 - MA MFC 300 R03 en
C3. Current Output X
C3. Current Output X X stands for one of the connection terminals A, B or C
stands for Fct. no. C3.2 (A) / C3.3 (B) / C3.4 (C)
C3. .1 Range 0%…100% HART ® current output: 4…20 mA
Current range for the selected measurement, e.g. 4...20 mA,
corresponds to 0…100%
Note: with a 0...20 mA current output, HART in Fct. C6.8.1 must be shut off!
xx.x … xx.x mA; range: 0.00…20 mA
(condition: 0 mA ≤ 1st value ≤ 2nd value ≤ 20 mA)
C3. .2 Extended Range Defines the min. and max. limits.
xx.x … xx.x mA; range: 03.5…21.5 mA
(condition: 0 mA ≤ 1st value ≤ 2nd value ≤ 21.5 mA)
C3. .3 Error Current Specify error current.
xx.x mA; range: 3…22 mA (condition: outside of extended range)
C3. .4 Error Condition The following error conditions can be selected.
Select: error in device (error category [F]) / application error (error category
[F]) / out of specification (error category [S])
C3. .5 Measurement Measurements for activating the output.
Select measurement: Volume Flow / Mass Flow / Temperature / Density /
Velocity / Diagnosis 1 / Diagnosis 2 /
Depending on the settings for the concentration measurement, the following
measurements are possible:
Diagnosis 3 / Concentration 1 / Concentration 2 / Concentration Flow 1 /
Concentration Flow 2
C3. .6 Range 0…100% of the measurement set in Fct. C3. .5
0…xx.xx _ _ _ (format and unit depend on the measurement, see above)
C3. .7 Polarity Set polarity, please note Flow Direction in C1.3.1!
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 (use for the output)
C3. .8 Limitation Limitation before applying the time constant.
± xxx … ±xxx%; range: -150…+150%
C3. .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
C3. .10 Time Constant Range: 000.1…100 s
C3. .11 Special Function Automatic Range; select:
Off (switched off)
Automatic range (range is changed automatically, extended lower range,
only makes sense together with a status output)
External range (change by control input, extended lower range, control input
must also be activated)
.book Page 85 Monday, February 6, 2012 11:01 AM