Emerson Rosemount 3100 Series, Reference Manual, Page: 126 / 144

Reference Manual
00809-0100-4840, Rev. BA
July 2008
Rosemount 3100 Series
F-12
P012 (PV Units)
P012 Description:
Use this to select alternative Display Units of the PV, which are reported to the
HART Master Device e.g. Rosemount 3490 Series Control Unit.
NOTE:
Selecting alternative Display Units does not re-scale the PV value.
Table F-1.
P012 (PV Units) Options
P013 (PV Scale Factor)
P013 Description:
When calculating the level of liquid contents in metres, feet or inches, P013 is
used for converting (scaling) the raw level measurement to alternative units
before output. If alternative units are not required, keep P013 set to 1.0.
When calculating the volume of liquid contents, P013 is set to the volume of
the ideal shaped cylinder, sphere or conical vessel (tank). P014 is set to the
diameter (only applicable to horizontal cylinders), as shown by Figure F-4 on
page F-9.
When calculating the volume of liquid contents or flow in an irregular shaped
vessel or open channel, P013 is set to the maximum output PV - as described
for the “Special” shape option of P011 (Tank Shape).
When calculating the rate of liquid flow in a standard open channel,
parameters P013 and P014 are terms in a flow rate calculation, as specified
for Flume/Weir options described for P011 (Tank Shape).
Minimum/Maximum value:
0.0/999999
Category Default Metric Units Alternative Units
Level “m” (meter) “ft” (feet), “in” (inches), “cm” (centimetres),
“mm” (millimetre)
Volume “m3” (cubic meter) “gal” (gallon), “l” (litre), “ft3” (cubic feet) or “bbl” (barrel)
Speed “m/s” (meters/second) “ft/s” (feet/second) or “in/s” (inches/second)
Flow “m3/h” “m3/d” (m3/day), “m3/m” (m3/minute),
“m3/s” (m3/second) “g/d” (gallon/day),
“g/h” (gallon/hour), “g/m” (gallon/minute),
“g/s” (gallon/second), “l/h” (litre/hour), “l/m”
(litre/minute), “l/s” (litre/second), “ft3/day” (ft3/day),
“ft3/hour” (ft3/hour), “ft3/m” (ft3/minute),
“ft3/s” (ft3/second), or
“Mg/d” (Million gallons/day or MGD)
Mass Kg “ton” or “tne” (tonne)
Temperature
°
C
°
F
Fraction % -