Process variable
Label
Display
ProLink III
FC
Net volume flow rate
Net Volume Flow Rate
Net Volume Flow Rate
Net Volume Flow Rate (CM)
Concentration
Concentration
Concentration
Concentration (CM)
Baume
Baume
Baume
Baume (CM)
Batching
% of batch delivered
% of Fill
% of Fill Delivered
% of Fill Delivered
8.2.2 Configure Lower Range Value (LRV) and Upper Range Value
(URV) for the mA Output
Display
Menu
>
Configuration
>
Inputs/Outputs
>
Channel
x
>
I/O Settings
>
Lower Range Value
ProLink III
Device Tools
>
Configuration
>
I/O
>
Outputs
>
mA Output
>
Lower Range Value
Device Tools
>
Configuration
>
I/O
>
Outputs
>
mA Output
>
Upper Range Value
Field Communicator
Configure
>
Manual Setup
>
Inputs/Outputs
>
Channel
x
>
mA Output
x
>
mA Output
x
Settings
>
Lower
Range Value
Configure
>
Manual Setup
>
Inputs/Outputs
>
Channel
x
>
mA Output
x
>
mA Output
x
Settings
>
Upper
Range Value
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 signal.
LRV
is the value of
mA Output Source
represented by an output of 4 mA.
URV
is the value of
mA Output
Source
represented by an output of 20 mA. Between
LRV
and
URV
, the mA Output is linear with the process
variable. If the process variable drops below
LRV
or rises above
URV
, the transmitter posts an output
saturation alert.
Procedure
Set
LRV
and
URV
as desired.
Enter
LRV
and
URV
in the measurement units used for
mA Output Source
.
•
Defaults: Specific to each process variable
•
Range: Unlimited
Note
You can set
URV
below
LRV
. For example, you can set
URV
to
50
and
LRV
to
100
. If you do this, the mA
Output will be inversely proportional to the value of
mA Output Source
.
Tip
For best performance:
•
Set
LRV
≥
LSL
(lower sensor limit).
•
Set
URV
≤
USL
(upper sensor limit).
•
Set these values so that the difference between
URV
and
LRV
is ≥
Min Span
(minimum span).
Integrate the meter with the control system
Configuration and Use Manual
April 2019
MMI-20048166
96
Micro Motion 4200 Transmitters