Rosemount 3051S
Reference Manual
XD_SCALE and OUT_SCALE
The XD_SCALE and OUT_SCALE each include three parameters: 0%, 100%, and, engineering units. Set these based on the L_TYPE:
L_TYPE is Direct
When the desired output is the measured variable, set the XD_SCALE to the “Primary_Value_Range”. This is found in the Sensor Transducer Block. Set OUT_SCALE to match XD_SCALE.
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.:
Pressure (Channel 1) | Temperature (Channel 2) | Flow (Channel 7) |
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|
|
Pa | °C | lbm/sec |
|
|
|
kPa | °F | lbm/min |
bar | °K | lbm/hour |
|
|
|
mPa |
| lbm/day |
mbar |
| kg/sec |
|
|
|
torr |
| kg/min |
atm |
| kg/hour |
|
|
|
psi |
| grams/sec |
g/cm2 |
| grams/min |
|
|
|
kg/cm2 |
| grams/hour |
inH2O at 68 °F |
| StdCuFt/sec |
mmH2O at 68 °F |
| StdCuFt/min |
in.H2O at 4 °F |
| StdCuFt/min |
mmH2O at 4 °F |
| StdCuFt/hour |
ftH2O at 68 °F |
| StdCuFt/day |
inHg at 0 °C |
| StdCuM/hour |
mmHg at 0 °C |
| StdCuM/day |
|
|
|
|
| NmlCuM/hour |
|
| NmlCuM/day |
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.
