LEFM 3xxCi User Manual
IB1406 Rev 12
Section 8
Page 62
February 2017
Reprogramming the Transmitter
Before each transmitter leaves the factory, it is preprogrammed to work with the meter body with which it
will be installed. This information is stored within a configuration file that is maintained by Cameron. The file
includes the following information:
•
Pipe size
•
Pipe transducer frequency
•
Acoustic path lengths
•
Calibration constant
•
Alarm settings
•
K-factor
•
Analog input/output scaling
Should the processor in the transmitter fail and require replacement, the transmitter must be reprogrammed
with the appropriate configuration file using Caldon’s LEFMLink software (for PC). The procedure is as
follows:
1.
Download the LEFMLink User Manual from Cameron’s Measurement Systems website for
reference.
2.
Connect the serial interface cable between a COM port on the PC and the transmitter.
3.
Select the appropriate Modbus ID and baud rate using LEFMLink software. All transmitters are
initially programmed with a Modbus ID of 1, and a baud rate of 19200 with RTU Slave Mode.
4.
Select the configuration file for the meter.
5.
Send the configuration file. The transmitter will be reprogrammed.
