108 WT.050.570.000.DE.IM.0714
Functions DEPOLOX
®
Pool
2.6
Positioner (with and
without feedback)
With the selection of the integrated controller for "positioner", for ex-
ample, chlorine overfeed control in connection with a positioner is
possible as dosing equipment in a chlorinator.
2-point pulse
duration controller
for dosing pumps
The dosing pump is switched on for the calculated time within an adju-
stable cycle period TP (relay contact). The cycle period is mainly deter-
mined by the reaction time of the connected system and entered as the
cycle period TP.
Example: Cycle period TP = 100 s
Output value Yout = 30 %
Duty cycle 30 s
Off duty cycle 70 s
Fig. 30
2-point pulse
frequency controller
for pulse pumps
Pulse pumps are controlled with 0 to 100 or 0 to 120 pulses per minute,
depending on the specification of the connected pump.
The duty cycle during dosing is 0.3 s. The break time is calculated bet-
ween 0.2 and 60 s depending on the dosing rate.
Example for a pulse pump with 120 pulses/min.:
Yout in % 100... 84... 72... 56 50... 33... 25... 10... 5... 1 0
Pulses/min 120... 96... 85... 75 60... 40... 30... 12... 6... 1 0
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