Evoqua DEPOLOX POOL COMPACT WALLACE & TIERNAN, Инструкция по эксплуатации

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3. Description DEPOLOX® Pool Compact
10
EN
Positioner without feedback
With the selection of the integrated controller
for "positioner", for example, it is possible to
use chlorine overfeed control in connection
with a positioner as an actuator of a chlorine
gas dosing system.
2-point pulse-duration controller for dosing
pumps
The dosing pump is switched on for the calcu-
lated time within an adjustable cycle period Tp
(relay contact). The cycle period is mainly
determined by the reaction time of the con-
nected 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
2-point pulse-frequency controller for sole-
noid pumps
Solenoid pumps are controlled with 0 to 100/
120/140/160/180 pulses per minute, depending
on the specification of the connected pump.
The duty cycle during each dosing is 0.3 s. The
pause time is calculated to be between 0.2 s and
60 s, depending on the dosing rate.
Example of a solenoid pump at 120 pulses/min:
3-point pulse-duration controller for dosing
pump and 3-point pulse-frequency controller
for solenoid pump
Pump 1 decreases the control value,
Pump 2 increases the control value.
The control range is between –100 % (Pump 1)
and +100 % (Pump 2); this range can also be
set in manual mode. If the setpoint = actual
value, no pump is activated (neutral zone Xsh).
Output signals as for 2 point pulse-duration
controller and 2-point pulse-frequency cont-
roller.
Solenoid pump (pulse-fre-
quency controller)
2-point Solenoid pump 2P
Dosing Cl
2
Correction pH or pH
Correction conductivity
2 solenoid pumps (pulse-
frequency controllers)
3-point Solenoid pump 3P
Correction pH and pH
Dosing contact 2-point Dosing contact
Dosing Cl
2
Correction pH or pH
Correction conductivity
Controller for Type Parameter description Action
Ð
Ð
Ð
Ð
Ð
Ð
Ð
Ð
Yout in % Pulses/min
100... 120...
84... 96...
72... 85...
56 75
50... 60...
33... 40...
25... 30...
10... 12...
5... 6...
1 1
0 0
1 0 0 %
0 % - 1 0 0 %
1 0 0 %
O u t p u t s i g n a l
D o s i n g r a t e
X
s h
P u m p 2 P u m p 1
- 1 0 0 %