Additel 221A Multifunction Temperature Calibrator User Manual - Manual (Page 80)

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1. In the HART diagnostic and service interface, choose PV Zero Trim from list, then you can press Enter or Select to
start the PV zero operation. The screen will ask you to confirm the PV zero (As shown in Figure 11.8).
2. Press OK to confirm or Cancel.
Figure 11.8 HART PV Zero Trim Figure 11.9 HART PV Calibration Setting