Caution!
The zero point correction sets the current ACT value to
zero. In order exclude erroneous measurements, ensure
no system pressure is being applied when carrying out
this function.
This initiates the zero point correction. The ACT (actual)
value is indicated in the display as 0.0 bar. The correction
remains active until the device is turned off.
OFL/ZEro is displayed for 3
seconds if the measured pres-
sure (0 bar) is greater than 5%
of the measurement range.
Zero point correction cannot be
carried out. Please ensure that
no system pressure is being ap-
plied.
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