Emerson MMI-20019043 Manuel D’Utilisation
Options for mA Output Process Variable
(continued)
Table 6-1:
Process variable
Label
Display
ProLink II
ProLink III
Field Communicator
Concentration measurement
Density at reference
RDENS
CM: Density @ Reference Density at Reference
Temperature
ED Dens at Ref
Specific gravity
SGU
CM: Density (Fixed SG
units)
units)
Density (Fixed SG Units)
ED Dens (SGU)
Standard volume flow
rate
rate
STD V
CM: Std Vol Flow Rate
Volume Flow Rate at Ref-
erence Temperature
erence Temperature
ED Std Vol flo
Net mass flow rate
NET M
CM: Net Mass Flow Rate
Net Mass Flow Rate
ED Net Mass flo
Net volume flow rate
NET V
CM: Net Vol Flow Rate
Net Volume Flow Rate
ED Net Vol flo
Concentration
CONC
CM: Concentration
Concentration
ED Concentration
Baume
BAUME
CM: Density (Fixed
Baume Units)
Baume Units)
Baume
ED Dens (Baume)
6.2.2
Configure Lower Range Value (LRV) and Upper Range
Value (URV)
Display
•
OFF-LINE MAINT
> OFF-LINE CONFG > IO > CH A > AO 4 mA
•
OFF-LINE MAINT
> OFF-LINE CONFG > IO > CH A > AO 20 mA
ProLink II
•
ProLink
> Configuration > Analog Output > Primary Output > Lower Range Value
•
ProLink
> Configuration > Analog Output > Primary Output > Upper Range Value
ProLink III
Device Tools
> Configuration > I/O > Outputs > mA Output
Field Communicator
•
Configure
> Manual Setup > Inputs/Outputs > mA Output > mA Output Settings > PV LRV
•
Configure
> Manual Setup > Inputs/Outputs > mA Output > mA Output Settings > PV URV
Overview
The Lower Range Value (LRV) and Upper Range Value (URV) are used to scale the mA output,
that is, to define the relationship between mA Output Process Variable and the mA output
level.
that is, to define the relationship between mA Output Process Variable and the mA output
level.
Note
For transmitter software v5.0 and later, if you change LRV and URV from the factory default values,
and you later change mA Output Process Variable, LRV and URV will not reset to the default values. For
example, if you set mA Output Process Variable to Mass Flow Rate and change the LRV and URV, then you
set mA Output Process Variable to Density, and finally you change mA Output Process Variable back to Mass
Flow Rate
and you later change mA Output Process Variable, LRV and URV will not reset to the default values. For
example, if you set mA Output Process Variable to Mass Flow Rate and change the LRV and URV, then you
set mA Output Process Variable to Density, and finally you change mA Output Process Variable back to Mass
Flow Rate
, LRV and URV for Mass Flow Rate reset to the values that you configured. In earlier versions of
the transmitter software, LRV and URV reset to the factory default values.
Integrate the meter with the control system
102
Micro Motion
®
Model 2700 Transmitters with Analog Outputs