ProMinent DULCOMETER Assembly And Operating Instructions Manual page 68

Operating menus
[HYST.]
Hysteresis =
If the value has fallen below a limit value,
then the limit value criteria are reset when
the measured value has reached the
value of the limit value plus hysteresis.
If the value has fallen below a limit value,
then the limit value criteria are reset when
the measured value has reached the
value of the limit value minus hysteresis.
If the limit value criteria no longer exist on
[TIMELIM] , then the control is
expiry of
automatically reactivated.
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