Rosemount 3144 - Page 46

Rosemount Model 3144 and 3244MV Smart Temperature Transmitters
3-18
Model 3244MV This procedure assumes that your Model 3244MV transmitter is
connected to two sensors and that both are enabled and functioning
properly. If you have only one sensor connected and enabled, skip
Step 1.
1. Disable Sensor 2.
a. Connect the communicator to the transmitter loop.
b. From the Home screen, select 1 Device setup, 3 Basic setup,
7 Snsr 2 Conn to prepare to disable Sensor 2.
c. Select OK after you set the control loop to manual.
d. Select Not Used at the “Enter Sensor 2 type” prompt.
e. Select OK at the “Sensor 2 connection set to: Not Used”
prompt.
f. Select OK to return the control loop automatic control.
2. Connect the calibration device to the transmitter. Refer to
Figure 2-7 on page 2-9 or inside of the transmitter terminal side
cover for sensor wiring diagrams.
3. Connect the communicator to the transmitter loop.
4. From the Home screen, select 1 Device setup, 2 Diag/Service,
3 Calibration, 3 Sensor trim, 1 Snsr 1 inp trim to prepare to trim
the sensor.
5. Select OK after you set the control loop to manual.
6. Select the appropriate sensor trim units at the “Enter snsr 1 trim
units” prompt.
7. Select the sensor trim points (1 upper, 2 lower, or 3 both) at the
“Enter snsr 1 Trim points” prompt. Or select 4 abort to abort the
trim procedure.
8. Adjust the calibration device to an input value slightly less than
the upper range limit provided by the communicator if
performing an upper trim, or slightly greater than the lower
range limit provided by the communicator if performing a lower
trim.
9. Select OK. The communicator displays the output value the
transmitter associated with the input value.
10. Enter the appropriate trim point, depending on your selection in
Step 8.
11. Re-enable Sensor 2:
a. Connect the communicator to the transmitter loop.
b. From the Home screen, select 1 Device setup, 3 Basic setup,
7 Snsr 2 Conn to prepare to re-enable Sensor 2.
c. Select OK after you set the control loop to manual.
d. Select the appropriate sensor type at the “Enter Sensor 2 type”
prompt.
e. Select OK at the “Sensor 2 connection set to: XXXX” prompt.
f. Select OK after you return the control loop to automatic
control.