0000137630 Rev. 2.0 10
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Case PPM Mode:
In order to maintain the selected ppm of chemical, The pump calculates the right dosing rate starting from the
following parameters:
• Pulse per minute on pulse input
• Flowmeter factor (pulse/liter)
• Density of chemical
• Concentration of chemical
If calculated flow rate is bigger than maximum, the pump goes in MEM function (if selected) and doses the lasting
quantity when possible.
The pump doses in proportion to an external signal (i.e.:
impulse launch counter), automatically calculating the
relationship between incoming signals and pump speed on
the basis of the programmed ppm value.
The dosage frequency can be modified during operation, by
pressing the
keys at the same time to increase
the flow, or the
keys to decrease it.
Makes it possible to set:
• Conc.(%)= product concentration.
• Memory= The pump has a memory function, which
signals the reception of a signal during dosage. If
set to Off, it merely sends a signal, if set to On it
sends a signal and memorizes the impulses, then
executes them when it has finished receiving
signals
• 1/1= number of impulses per liters (1/1-999/999)
and consequently the system will dose according to
the values set.
• Set P.= ppm value that the system will dose.
Case 1:N Mode:
Pump doses following pulses number to the related input.
One input pulse generate 1 second of dosing at set speed (N)
e.g.
• If N is set to 1 (N=1), pump doses for one second at speed=1% of Max speed
• If N is set to 100 (N=100), pump doses for one second at speed=100% (Max speed)
* quantity dosed in 1 second
If calculated flow rate is bigger than maximum, the pump goes in MEM function (if selected) and doses the lasting
quantity when possible.
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