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8.2 “Set-Point”, pH proportional & proportional water meter (pulse)
This mode is valid for “pH pulse” and “pH pulse 2” outputs only.
Proportional mode set the instrument to operate using a calculated percentage between two set values that
enable or disable the Chlorine pump. To use this mode move cursor on “Working Mode”. Press the wheel and
select it.
PROPORTIONAL mode between 7pH(0 P/m) and 8pH (180 P/m). p/m is : pulses per minute
In this mode the pH pump will be “ON” for values greater than 8pH with maximum set pulses per minute capacity
(e.g.: 180) and it’ll be “OFF” for values lower than 7pH. For values of 7.5pH pump will be “ON” with 90 pulses
per minute capacity. The calculation is based on 180 pulses per minute setting (see page 22). To end procedure
move cursor on “OK” and press wheel to proceed to “Save” request screen. Move wheel on “YES” to save or
“NO” to discard changes.
Proportional Water Meter
Proportional mode can also be set into PROP+WM mode. This option allows to regulate proportional input based on
flow detected by water meter at set percentual values.
e.g.: reading at 9 will have an output of 90 P/m (50%). Adding the proportional flow from the water meter with
parameters set between 20 % (at 0mc/h) and 100% (at 8mc/h) results will be that (as example):
At 4 mc/h will have a working period of 54 P/m (60% of 90P/m)
60% is the middle value between 20% and 100% for reading of 4mc/h
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