Commissioning
RMA42
28
Hauser
Inband
The limit value is violated as soon as the measured value to be checked drops below or exceeds a
minimum or maximum value specified beforehand. The hysteresis is located at the insides of the
band.
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Fig. 13:
Inband operating mode
Special situation: hysteresis and delay at one limit value
In special cases when the hysteresis and limit value display are activated, a limit value is switched
based on the following principle.
If the hysteresis and limit value delay are activated, the delay is activated when a limit value is
overshot and measures the time since the value overshoot began. If the measured value drops back
below the limit value, the delay is reset again. This also happens if the measured value falls under
the limit value but is still above the specified value of the hysteresis. The next time the limit value
is exceeded, the delay time becomes active and starts measuring from 0.
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Fig. 14:
Hysteresis and delay active
