ProMinent Splash Control Pro 2 - Hysteresis Metering Mode

8.2.3 ‘Hysteresis’ metering mode
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Setpoint and control settings
E01 pH value
Hysteresis
Hysteresis mode
Basic load
Setpoint
Maximum time
Active threshold
Fig. 95: ‘Hysteresis’ metering mode
Basic load
The basic load is a permanent capacity inde‐
pendent of the metering requirement. This function
should be used with great care to avoid overme‐
tering.
If the channel's metering direction is configured in downstream
mode, the control’s requirement is 100% as soon as the error
(measuring setpoint) is greater than the hysteresis value.
I.
II.
III.
IV.
0 %
100 %
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Fig. 96: Metering direction of the channel in downstream mode
I. Control setpoint
II. Measure
III. Hysteresis
IV. Metering effect
If the channel's metering direction is configured in upstream mode,
the control’s requirement is 100% as soon as the error (measuring
setpoint) is greater than the hysteresis value
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I.
100 %
I.
III.
II.
0 %
Fig. 97: Metering direction of the channel in upstream mode
I. Control setpoint
II. Measure
III. Hysteresis
IV. Metering effect
Setting measuring and control parameters
97