Emerson Rosemount 3051CF Series Reference Manual page 41

Reference Manual
00809-0100-4774
L_TYPE is indirect
When an inferred measurement is made based on the sensor measurement, set the
XD_SCALE to represent the operating range that the sensor will see in the process.
Determine the inferred measurement values that correspond to the XD_SCALE 0 and
100% points and set these for the OUT_SCALE.
L_TYPE is indirect square root
When an inferred measurement is made based on the sensor measurement AND the
relationship between the inferred measurement and sensor measurement is square root,
set the XD_SCALE to represent the operating range that the sensor will see in the process.
Determine the inferred measurement values that correspond to the XD_SCALE 0 and
100% points and set these for the OUT_SCALE:
Parameters
Channel
L-Type
XD_Scale
Note
Select only the units that are
supported by the device.
Out_Scale
Note
When the engineering units of the XD_SCALE are selected, this causes the engineering
units of the PRIMARY_VALUE_RANGE in the Transducer Block to change to the same units.
This is the only way to change the engineering units in the sensor transducer block
PRIMARY_VALUE_RANGE parameter.
Configuration examples
Filtering
The filtering feature changes the response time of the device to smooth variations in
output readings caused by rapid changes in input. Adjust the filter time constant (in
seconds) using the PV_FTIME parameter. Set the filter time constant to zero to disable the
filter feature.
Reference Manual
Enter data
1=Pressure, 2=Sensor Temp, 12=SPM mean, 13=SPM standard deviation
Direct, Indirect, or Square Root
Scale and Engineering Units
Pa bar torr at 0 °C
kPa mbar kg/cm
mPa psf kg/m
hPa Atm in H
2
Deg C psi in H
2
2
Deg F g/cm in H
2
Scale and engineering units
ft H O at 4°C
2
2
ft H O at 60 °F
2
2
ft H O at 68 °F
2
Oat 4 °C mm H O at 4 °C
2
O at 60 °F mm H O at 68 °C
2
O at 68 °F cm H O at 4 °C
2
Configuration
July 2020
m H O at 4 °C
2
mm Hg at 0 °C
cm Hg at 0 °C
in Hg at 0 °C
m Hg at 0 °C
41