Manual

<2. About the EJX Multivariable Transmitter>
2-5
IM 01C25R01-01E
Table 2.2 Symbols
# Symbol Description
1 Qm Mass Flow
2 Qv Volume Flow
3 Qv_norm Normal·Standard Volume Flow
4 Nc Unit convert factor
5 Kfactor Basic ow Calculation factor
6 C Discharge Coefcient
7 ε Expansion Factor
8 β Diameter Ratio
9 d Diameter of orice
10 ∆p Differential Pressure
(Transmitter Setting unit)
11 ρb Base Density on Tb, SPb Condition
12 ρnorm Density on Normal, Standard condition
13 Tb Reference temperature unit: K
14 T Temperature unit: K
15 SPb Reference static pressure unit: kPa abs
16 SP Static Pressure unit: kPa abs
17 Temp K1 The density rate of change per
temperature 1degC of a density base
value (value which set 100% to 1)
For volume ow: set 0.
18 K Compressibility factor
Flow Unit Category
Table 2.3 Mass Flow Unit (HART protocol type)
Unit LCD Communication
grams per second g/s ←
grams per minute g/m g/min
grams per hour g/h ←
kilograms per second kg/s ←
kilograms per minute kg/m kg/min
kilograms per hour kg/h ←
kilograms per day kg/d ←
metric tons per minute t/m t/min
metric tons per hour t/h ←
metric tons per day t/d ←
pounds per second lb/s ←
pounds per minute lb/m lb/min
pounds per hour lb/h ←
pounds per day lb/d ←
short tons per minute STon/m STon/min
short tons per hour STon/h ←
short tons per day STon/d ←
long tons per hour LTon/h ←
long tons per day LTon/d ←
Table 2.4 Normal•Standard Volume Flow Unit
(HART protocol type)
Unit LCD Communication
normal cubic meter per
hour
Nm3/h
←
normal liter per hour
NL/h
←
standard cubic feet per
minute
SCFM
←
standard liter per hour SL/h ←
standard liter per minute SL/m SL/min
standard liter per second SL/s ←
normal cubic meter per
day
Nm3/d
←
standard cubic feet per
day
SCFD
←
standard cubic feet per
hour
SCFH
←
standard cubic feet per
second
SCFS
←
standard cubic meter per
day
Sm3/d
←
standard cubic meter per
hour
Sm3/h
←
thousand standard cubic
feet per day
MSCFD
←
million standard cubic
feet per day
MMSCFD
←
Table 2.5 Volume Flow Unit (HART protocol type)
Unit LCD Communication
cubic feet per minute CFM ←
gallons per minute GPM ←
liters per minute L/m L/min
imperial gallons per
minute
IGal/m Impgal/min
cubic meter per hour M3/h ←
gallons per second gal/s ←
million gallons per day Mgal/d ←
liters per second L/s ←
million liters per day ML/d ←
cubic feet per second CFS ←
cubic feet per day ft3/d ←
cubic meters per second M3/s ←
cubic meters per day M3/d ←
imperial gallons per hour IGal/h Impgal/h
imperial gallons per day IGal/d Impgal/d
cubic feet per hour CFH ←
cubic meters per minute m3/m m3/min
barrels per second bbl/s ←
barrels per minute bbl/m bbl/min
barrels per hour bbl/h ←
barrels per day bbl/d ←
gallons per hour gal/h ←
imperial gallons per
second
IGal/s Impgal/s
liters per hour L/h ←
gallons per day
gal/d
←