Emerson Micro Motion 2500, Configuration And Use Manual

Page: 15 / 238

2.4 (Optional) Adjust digital communications
settings
Change the communications parameters to site-specific values.
Important
If you are changing communications parameters for the connection type that you are using, you will
lose the connection when you write the parameters to the transmitter. Reconnect using the new
parameters.
Procedure
1. To change the communications parameters using ProLink III, choose Device Tools >
Configuration > Communications.
2. To change the communications parameters using the Field Communicator, choose
On-Line Menu > Configure > Manual Setup > Inputs/Outputs > Communications.
2.5 Verify mass flow measurement
Check to see that the mass flow rate reported by the transmitter is accurate. You can use
any available method.
• Connect to the transmitter with ProLink III and read the value for Mass Flow Rate in
the Process Variables panel.
• Connect to the transmitter with the Field Communicator and read the value for Mass
Flow Rate.
On-Line Menu > Overview > Primary Purpose Variables
Postrequisites
If the reported mass flow rate is not accurate:
• Check the characterization parameters.
• Review the troubleshooting suggestions for flow measurement issues.
2.6 Verify the zero
Verifying the zero helps you determine if the stored zero value is appropriate to your
installation, or if a field zero can improve measurement accuracy.
The zero verification procedure analyzes the Live Zero value under conditions of zero flow,
and compares it to the Zero Stability range for the sensor. If the average Live Zero value is
within a reasonable range, the zero value stored in the transmitter is valid. Performing a
field calibration will not improve measurement accuracy.
Quick start
Configuration and Use Manual 7