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48
Set subfunction
“LIMIT CNT.”
to
10
on a trial basis.
Should the measuring value leave the above window in one direction more than 10 times, this window is temporarily rendered
inactive.
Display and outputs follow major changes of flow with the appropriate speed.
This setting provides an additional dead time for display and outputs:
Dead time = LIMIT CNT. x duration of measuring cycle.
Duration of measuring cycle =
approx. 60 ms
(for magnetic field frequency = 1/6 x line frequency, see Fct. 3.02, subfunction
“FIELD FREQ.”).
A “10” set in subfunction “LIMIT CNT.” results in a dead time of approx. 600 milliseconds.
By changing the subfunctions
“LIMIT VAL.”, “LIMIT CNT.”
and
“TIMECONST.”
(Fct. 1.02) on a trial basis, a setting can normally be found which ensures
that the display and outputs are sufficiently stable.
Each
of the steps described above must be followed by a check
of the ripple of display and outputs in measuring mode.
6.7
Stable signal outputs with empty measuring tube
All output signals (including display) will be stable (0%) when the level is lower than 10% of the inner diameter.
