KROHNE OPTISONIC 7300 EN - Manual (Page 72)

6
OPERATION
72
OPTISONIC 7300
www.krohne.com 09/2012 - 4001102303 - MA OPTISONIC 7300 R03 en
C2. .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])
C2. .5 measurement Measurements for activating the output.
Select: volume flow / corr. volume flow / mass flow / molar mass /
flow speed / velocity of sound / gain / diagnostics 1, 2, 3.
C2. .6 range 0…100% of the measurement set in Fct. C2. .5
0…xx.xx _ _ _ (format and unit depend on the measured variable, see
above)
C2. .7 polarity Set polarity of current output, please note flow direction in C1.3.2!
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 (use for the output)
C2. .8 limitation Set lower and upper limit for current output before applying the time
constant (see Fct. C2. .10).
± xxx … ±xxx%
Range: -150…+150%
C2. .9 low flow cutoff Below set value, current output is set to zero.
x.xxx ± x.xxx%
Range: 0.0…20%
1 st value = switching point / 2 nd value = hysteresis
Condition: 2 nd value ≤ 1 st value
C2. .10 time constant Averages measurement
Increasing value improves stability but delays the reaction.
Range: 000.1…100.0 s
C2. .11 special function When activated, changing the scale improves the resolution.
Select:
Off (switched off)
Automatic range (scale changes to extended automatically for the
threshold with hysteresis. Switching from one to another scale
requires activation by a status output)
External range (scale changes to extended range by control input)
C2. .12 threshold Appears only when Fct. C2. .11 is activated.
Set lag value between normal and extended range. The automatic
range function always changes from the extended to the normal range
when the 100% current is reached.
Range: 05.0…80%
C2. .13 information
1 st line: serial number of the I/O circuit board
2 nd line: software version number
3
rd
line: production date of the circuit board
C2. .14 simulation Sequence see B1. current output 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.