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11 4 5 Output Trim
The Output Trim adjusts the HART transmitter's digital analog output according to the actual loop current measured by the
calibrator. To perform an Output Trim, proceed as follows:
1. In the HART diagnostic and service interface, choose Output Trim from list, then you can press Enter or Select to show
the Output trim point selection interface.
2. In this interface, you can select Low (zero point, 4mA) output trim or high (span point, 20mA) output trim and press Enter
or Done to display the Output Trim interface (as shown in Figure 11.12).
3. In the Output Trim interface, press Enter or Trim to execute the output adjustment. The trim value can be fetched by
pressing Fetch, or it can be inputted manually.
4. If Output Trim is successfully executed, the calibrator will goes back to the Output Trim selection interface. You can repeat
steps 2 and 3 to start another Output Trim.
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