Emerson Process Management ROSEMOUNT 5300 - Manual (Page 316)

Reference Manual
00809-0100-4530, Rev BA
July 2009
Rosemount 5300 Series
J-10
Indirect Square Root
Select indirect square root when the desired output is an inferred
measurement based on the transmitter measurement and the relationship
between the sensor measurement and the inferred measurement is
square root (e.g. level).
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
represent the operating range of the process. 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 transmitter
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.
NOTE!
To avoid configuration errors, only select Engineering Units for XD_SCALE
and OUT_SCALE that are supported by the device. The supported units are:
Table J-4. Length
Table J-5. Level Rate
Display Description
m meter
cm centimeter
mm millimeter
ft feet
in inch
Display Description
m/s meter per second
m/h meter per hour
ft/s feet per second
in/m inch/minute