configuration that is stored for the selected input or output type, and the stored configuration may not be
appropriate for your process.
After verifying channel and output configuration, return the control loop to automatic control.
8.2 Configure an mA Output
Use an mA Output to report current values of process variables. The mA signal varies between 4 mA and
20 mA in proportion to the current value of the assigned process variable.
Depending on your purchase order and channel configuration, your transmitter may have 0–3 mA Outputs.
Channel A is always mA Output 1, and Channel B and Channel C can be configured as mA Output 2 and
mA Output 3 respectively.
Note
Channel A also supports HART/Bell 202 communications, superimposed on the mA signal. HART is not
available on Channel B or Channel C.
8.2.1 Configure mA Output Source
Display
Menu
>
Configuration
>
Inputs/Outputs
>
Channel
x
>
I/O Settings
>
Source
ProLink III
Device Tools
>
Configuration
>
I/O
>
Outputs
>
mA Output
x
Field Communicator
Configure
>
Manual Setup
>
Inputs/Outputs
>
Channel
x
>
mA Output
x
>
mAO
x
Source
mA Output Source
specifies the process variable that is reported by the mA Output.
Prerequisites
•
If you plan to configure the output to report volume flow, ensure that you have set
Volume Flow Type
as
desired: Liquid or Gas Standard Volume.
•
If you plan to configure an output to report a concentration measurement process variable, ensure that
the concentration measurement application is configured so that the desired variable is available.
•
If you are using the HART variables, be aware that changing the configuration of
mA Output 1 Source
will
change the configuration of the HART Primary Variable (PV).
Note
mA Output 2 Source
is not tied to the HART secondary variable. You can configure these independently. This
is different from previous Micro Motion Coriolis transmitters.
Procedure
Set
mA Output Process Variable
as desired.
Defaults:
•
mA Output 1: Mass Flow Rate
•
mA Output 2: Density
•
mA Output 3: Temperature
Configuration and Use Manual
Integrate the meter with the control system
MMI-20025166
March 2019
Configuration and Use Manual
137