Technical data
Initial Set-Up: Ensure Modbus units are set-up as desired: set Modbus register 95
(UnitsSystem) to 0 for U.S. Customary units or to 1 for metric units.
Periodic Loop:
• Wait for external event for synchronizing the start of the meter delta volumes. Send
trigger Modbus message: set Modbus register 1482 (DoUpdtTrigDeltaVols) to 1
(TRUE).
• Read trigger Modbus register 1482 (DoUpdtTrigDeltaVols) in a loop until it is read as
0 (FALSE) indicating that the delta volumes have been updated.
• Read trigger Modbus register 1482 (DoUpdtTrigDeltaVols) in a loop until it is read as
0 (FALSE) indicating that the delta volumes have been updated.
• Read trigger Modbus register 1482 (DoUpdtTrigDeltaVols) in a loop until it is read as
0 (FALSE) indicating that the delta volumes have been updated.
• Read delta volume registers (either the FLOAT registers or the LONG register pairs)
in a single Modbus read. If the delta volume registers are read as LONG register
pairs, calculate each delta volume as follows:
4.1.8 Save the configuration
1. Use the Daniel MeterLink Tools¦Edit/Compare Configuration menu.
2.
Enable the View All radio button to display the Extended configuration.
This includes some read-only data points that help describe the meters
configuration. Read-only datapoints are displayed for reference only and cannot be
changed. They are displayed with a gray background for reference only and cannot
be changed. The extended configuration data points are viewable in the
Maintenance Logs Report, Archive Log Report , Flow Calibration, Zero Calibration
dialogs and the Edit/Compare Configuration tool.
3. Enable the View Metrology radio button to display only the metrology portion of the
configuration.
The Metrology View includes the following parameters: Path dimensions, Pipe
diameter, Transducer delay parameters, zero flow calibration coefficients, and flow
calibration coefficients.
4. Click the Read button to display the meter's configuration parameters.
Daniel Liquid Ultrasonic Flow Meters calibration and configuration parameters
40 Daniel 3810 Series Operations Manual