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Flow Calibration
FLOWSIC600 · Technical Information · 8010125 V 4.0 · © SICK AG 85
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If the zero phase values do not meet the aforementioned criteria, the zero phase needs to
be adjusted.
To shift the zero phase cursor to the proper position, the parameter "Zerophase[rad]" in the
parameter table on the right hand needs to be adjusted.

Click the arrows to raise or lower the zero phase in steps of 0.1 rad or type in a value.

Begin by changing the zero phase value in steps of 0.5 rad.

Then click "Write to meter" and check the reaction in the signal window.

Continue until the green cursor is positioned near or exactly on the red asterisk. (The
asterisk marks the second positive zero passage.)
The proper value of the zero phase can be calculated or determined empirically.
Examples for the effect on the phase lag:
– Zero phase + 6.28 rad (=2

):
Shifts the ZeroPhase BA (or AB) line by about one
period to the right
– Zero phase - 3.14 rad (=-

):
Shifts about half a period to the left

After having adjusted the zero phase, check the SOS again (

pg. 80, 3.3.8 ).
The meter must be in the Configuration Mode with the Parameter write lock in
the UNLOCKED position.