Emerson Fisher FIELDVUE L2t Instruction Manual page 13

Instruction Manual
D104782X012
2. Press and hold both the zero button and the span button for 3 to 8 seconds. The LED will blink red.
3. Press and release the zero button. The red LED will remain solid for 2 seconds then resume blinking.
4. Move the level to the point where you want the dump valve to be fully open.
5. Press and release the span button. The red LED will remain solid for 2 seconds then resume blinking.
6. Calibration is complete when the LED turns solid green.
Note
The LED will blink red if calibration is not successful.
A too narrow or too wide span may cause calibration to fail. Restart the calibration procedure and adjust the fully closed and/or
fully open points.
Note
The limit switches do not require an independent calibration; they are calibrated as part of the Zero and Span calibration.
Calibration using an Emerson Handheld Communicator
1. Install the latest version of the communication software on the user interface tool.
Note
This may include an FDI package or DD. Contact your
information on locating the necessary files.
Note
The TALK terminals are located under the transmitter cover.
2. Connect to device using TREX or other handheld communicator.
3. Open the device and go to Process Variables to take out of service.
4. Once out of service go to Configure > Guided setup.
5. Start calibration and follow instructions to move to and select the Zero position. The red LED will remain solid for 2
seconds then resume blinking.
You will then be instructed to set the Zero again or press next to set span.
6. Move the actuator or other device to the other end of travel and select span. The red LED will remain solid for 2
seconds. The handheld will ask to set again or continue.
7. Follow the prompts to fill in Calibration details.
8. Calibration is complete when the LED turns solid green.
9. Return the instrument to in service.
Emerson sales office to ensure you have the latest software version or for
L2t Liquid Level Controller
October 2023
13