Emerson Process Management 3144P Marine Instruments User Manual


 
Reference Manual
00809-0100-4021, Rev DA
November 2004
Rosemount 3144P
3-10
HART
4. Select OK after verifying the variable settings from the variable mapping
menu.
5. Select OK to return the control loop to automatic control.
6. Select HOME to return to the Online menu.
7. Select 1 Device Setup, 3 Configuration, 3 Dual-sensor configuration, 1
Differential Config, 1 Differential Units to set the desired differential units.
8. Select HOME to return to the Home screen.
If you are using a LCD display for local indication, configure the meter to
read the appropriate variables using the “ LCD Display Options” on
page 3-17.
AMS
For AMS, configure each sensor as indicated above.
Right click on the device and select “Configuration Properties” from the
menu. Select the Dual Sensor tab to configure the Differential
Temperature.In the Differential Temperature box, Set the Diff Units to the
desired output. Set damping if applicable.
Apply changes made (see “Apply AMS Changes” on page 3-5).
Average Temperature
The 3144P transmitter configured for dual-sensors can output and display
the average temperature of any two inputs. Use the following procedure to
configure the transmitter to measure the average temperature.
First, configure Sensor 1 and Sensor 2 appropriately. Select 1 Device
Setup, 3 Configuration, 2 Sensor Configuration, 1 Change Type and Conn.
to set the sensor type and number of wires for Sensor 1. Repeat for
Sensor 2.
NOTE
This procedure configures the average temperature as the primary variable
analog signal. If this is not necessary, assign the average temperature to the
secondary, tertiary, or quaternary variable.
1. From the Home screen, select 1 Device Setup, 3 Configuration, 1
Variable Mapping, 5 Variable Re-map to set the transmitter to display the
average temperature. Set the control loop to manual and select OK.
2. Select 4 Sensor Average from the Primary Variable (PV) menu.
3. Select three of the five variables (differential temperature, sensor 1,
sensor 2, First-Good, and terminal temperature) for the Secondary
Variable (SV), Tertiary Variable (TV), and Quaternary Variable (QV).
4. Select OK after verifying the variable settings in variable mapping menu.
5. Select OK to return the control loop to automatic control.
6. Select HOME to return to the Online menu.
7. Select 1 Device Setup, 3 Configuration, 3 dual sensor configuration, 2
average, 1 avg units to set the desired average temperature units.
8. Select HOME to return to the Home screen.
If using a LCD display, configure it to read the appropriate variables using
LCD Display Options” on page 3-17.
HART Fast Keys 1, 3, 1, 5, 4