VERDER VP2-HT PH/RX Manual De Regulatión página 37

RX PUMP PROGRAMMING AND CALIBRATION
RX PROPORTIONAL DOSING
This kind of dosing is proportional to the distance of the mV measure from the desired Setpoint.
Proportionality is achieved by modulating the pump flow rate from 10-100% of the maximum flow.
The proportionality range and the verse are freely programmable (SetP. end T.Max).
There is a fixed hysteresis in the dosage range of 5mV. This hysteresis avoids unwanted dosing in the case of use of
unstable probes.
SetP. = Setpoint, desired value of measure
T.Max = Maximum Threshold, value of the measure that defines the range of proportionality and the direction of the
dosing. When the measure reaches the maximum threshold, the pump flow rate is maximum.
Flow.Max =% Maximum flow rate
Del.On = seconds expected by the pump before dosing when the setpoint is exceeded
EXAMPLE OF SETTING SetP.:
The factory settings allow to dose Chlorine in the plant.
With a measure equal to or greater than 730mV the pump does not dose .
With a measure equal to or less than 630mV the pump doses at 80% of the maximum flow.
With a measure between 630mV and 730mV the pump doses proportionally to the distance of the measure from the
setpoint.
Example:
-measure = 670mV, the pump will dose at 52%
-measure = 690mV the pump will dose at 38%.
Rev 1.1
All manuals and user guides at all-guides.com
Cod. 00.009.126
In the Dosing menu, select "Proportional" by the
cursor and press ENTER.
The factory parameters are shown in the figure on the
left.
Use the ▼ ▲buttons to move the cursor and select
the parameter to be modified and press ENTER to
enter the modification.
Use the ▼ ▲ buttons to define the desired value and
press the ENTER button each time to confirm the
change.
If you want to esc programming and return to
measurement, press ESC for 3 seconds.
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