Reference Manual
Rosemount 8732
Universal Trim
The Universal Trim function enables the Rosemount 8732E to calibrate sensors that were not calibrated at the Rosemount factory. The function is activated as one step in a procedure known as
1.Determine the flow rate of the process fluid in the sensor.
NOTE
The flow rate in the line can be determined by using another sensor in the line, by counting the revolutions of a centrifugal pump, or by performing a bucket test to determine how fast a given volume is filled by the process fluid.
2.Complete the Universal Trim function.
3.When the routine is completed, the sensor is ready for use.
Auto Zero
The Auto Zero function initializes the transmitter for use with the 37 Hz coil drive mode only. Run this function only with the transmitter and sensor installed in the process. The sensor must be filled with process fluid at zero flow. Before running the Auto Zero function, be sure the coil drive mode is set to 37 Hz (Auto Zero will not run with the coil drive frequency set at 5 Hz).
Set the loop to manual if necessary and begin the Auto Zero procedure. The transmitter completes the procedure automatically in about 90 seconds. A symbol appears in the lower
Master Reset
The master reset is a function that the user can execute to reset the device configuration to the default setting.
There are three types of Master Reset:
Cold Start - Reset the device to a default configuration. The device address is not changed.
Warm Start - Restart the device. This reset function acts just like a power cycle. None of the configuration parameters are changed.
Reset Address - This reset changes the bus address of the device to the default address of 126. This change happens immediately regardless of the state of data exchange the transmitter is in.
