The user is then notified that the loop may now be returned to automatic control. After the user presses OK the HART Communicator returns to the Calibration screen.
The HART Communicator is now at the starting screen for the Full Temper Trim.
Basic Setup Procedures
If a transmitter has been configured to measure both Level and Interface, the Basic setup screen will display the procedure Select PV on the second line. If a transmitter has not been configured to measure Interface, the second line will not appear.
If the user selects Select PV from the Basic setup screen, this screen will appear reminding the user that the loop should be removed from automatic control before proceeding. When this has been done, the user must press OK to continue.
The user must now select which variable, Level or Interface will be the Primary Variable. In other words, which variable will control the loop current output from the transmitter. In this example, the user selects Interf and must press ENTER when ready to proceed.
The HART Communicator sends the command selecting the variable to be the Primary variable, and the transmitter will respond when the change has been made. The user is then notified that the loop may now be returned to automatic control. After the user presses OK the HART Communicator returns to the Basic setup screen.
Reranging the Transmitter
Setting the Measurement Value for 4mA and 20mA by Keypad
If you desire to change the Level value at which the Current output is 4mA and 20mA when the Level is the selected Primary Variable, or change the Interface value at which the Current output is 4mA and 20mA when the Interface is the selected Primary Variable, the following procedure is used.
If the user selects Rerange from the Basic setup screen, a new menu screen will appear with the two choices Keypad rerange and Apply Values. The user will select Keypad rerange to change the 4mA and 20mA measurement values.
If the user selects Keypad rerange from the Rerange screen the user may change the LRV (4mA measurement value), the URV (20mA measurement value) or the Unit of measure. If Unit is selected by pressing the right arrow, a selection of units is available to the user.
This screen will show the user that in is the current user units and the user may select from ft, m, in or cm. When the user has selected the units that he desires by the up or down arrows, he must press ENTER to continue.
After the user has selected new units, he is warned that until he sends the new units code to the transmitter, all variables that use this units code will remain in the previous units code. The HART Communicator does not automatically send the new units code to the transmitter. The user must acknowledge this message by pressing OK to continue.
The user is returned to the Keypad rerange screen. Note that the label above F2 is now SEND. The user must press the SEND key for the HART Communicator to send the new units code to the transmitter.
15
