110 WT.050.570.000.DE.IM.0714
Functions DEPOLOX
®
Pool
2.6
Controller with mA out-
put
The DEPOLOX
®
Pool has up to four analog mA outputs. These can be
assigned individually as registration or controller outputs.
If Cl
2
dosing "analog output 2P" is selected the mA output 1 is perma-
nently assigned.
If pH dosing "analog output.2P" or "analog output.3P" is selected the
output 2 is permanently assigned.
If conductivity dosing "analog output 2P" is selected the mA output 3 is
permanently assigned.
Analog output controller
2-point
With a controller output of 0 % the output current is 0 or 4 mA, with a
higher controller output the output current reaches up to 20 mA. Pumps
with current input, thyristor controllers with DC or 3-phase pumps or
analog control valves can be used as dosing equipment.
Analog output controller
3-point
Pump 1 decreases the control value,
Pump 2 increases the control value.
Output behaviour similar as for "analog output controller (2-point)", but
with 50 % offset. This means that with a control deviation of 0 % (set-
point = actual value) a current of 10 or 12 mA is output (pump is idle).
Therefore 2 suitable pumps can be controlled with one mA current
loop.
Fig. 32
Setting Signal Pump Signal Pump
0 ... 20 mA
4 ... 20 mA
0 ... 10 mA
4 ... 12 mA
Pump 1
Pump 1
10 ... 20 mA
12 ... 20 mA
Pump 2
Pump 2
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