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PM400
3.4 Delta Mode
Press the button to enter the Delta Mode. The actual measurement value is set to zero,
saved as reference and the difference to the reference value. is displayed. The reference value
displays in the field above the operating button.
The scale-based indicators go to a middle setting.
3.5 Zeroing
Press the button to enter the Zeroing menu. Follow the displayed instructions.
After successful Zeroing, the Zero value is displayed in the field above the button in Need-
le and Numerical measurement screens.