Operation Manual

<6. Operation of FlowNavigator Program>
6-5
IM 01C25R51-01E
6.1.3 Flow Calculation of Device and FlowNavigator
(1) EJX Multivariable Transmitter
Refertotheinstructionmanual“EJX910AandEJX930AMultivariableTransmitters”(IM
01C25R01-01E)
(
2) digitalYEWFLO Vortex Flowmeter
Followings give an overview of the calculation modes.
• Detail (Gas / Liquid) Compensation Mode
- Gas temperature pressure compensation (Detail)
T
hemassowrateofthegasiscalculatedbasedontheprocesstemperatureandpressure
by referring to the physical property database of FlowNavigator Resource.
The temperature value is the output of digitalYEWFLO Built-in Temperature Sensor
(
OptionalCode/MV)orTemperatureTransmitter.Thepressurevalueistheoutputof
Pressure Transmitter.
- Liquid temperature compensation (Detail)
T
hemassowrateoftheliquidiscalculatedbasedontheprocesstemperaturebyreferring
to the physical property database of FlowNavigator Resource. The temperature value is the
output of digitalYEWFLO Built-in Temperature Sensor (Optional
C
ode:/MV)orTemperatureTransmitter.
• Steam Compensation Mode
- Saturated steam (Temperature)
T
hemassowrateofthesaturatedsteamiscalculatedbasedontheprocesstemperature
by referring to the saturated steam table (a process temperature) in the device. The process
temperature value is the output of digitalYEWFLO Built-in Temperature Sensor (Optional
C
ode:/MV)orTemperatureTransmitter.
- Saturated steam (Pressure)
T
hemassowrateofthesaturatedsteamiscalculatedbasedontheprocesspressure
by referring to the saturated steam table (a process pressure) in the device. The process
pressure value is the output of Pressure Transmitter.
- Superheated steam
T
hemassowrateofthesuperheatedsteamcalculatedbasedontheprocesstemperature
and pressure by referring to the superheated steam table in the device. The process
temperature value is the output of digitalYEWFLO Built-in Temperature Sensor (Optional
C
ode:/MV)orTemperatureTransmitter,andtheprocesspressurevalueistheoutputof
Pressure Transmitter.
• Simple (Gas / Liquid) Compensation Mode
- Gas temperature pressure compensation
T
hemassowrateofthegasiscalculatedbasedontheprocesstemperatureandpressure
by using the density correction value input by users in FlowNavigator. The temperature
v
alueistheoutputofdigitalYEWFLOBuilt-inTemperatureSensor(OptionalCode:/MV)or
Temperature Transmitter. The pressure value is the output of Pressure Transmitter.
- Liquid temperature compensation
T
hemassowrateoftheliquidiscalculatedbasedontheprocesstemperaturebyusing
the density correction value input by users in FlowNavigator. The temperature value is the
o
utputofdigitalYEWFLOBuilt-inTemperatureSensor(OptionalCode:/MV)orTemperature
Transmitter.