PB-F
8.1.3 - PUMP CONTROLS
1 - ON/OFF light switch "green"
2 - Level L.E.D. "yellow"
3 - Pulse L.E.D. "red"
4 - Water meter mode indicator L.E.D.
5 - Proportional/Manual mode button
6 - Manual mode indicator L.E.D.
7 - Frequency adjustment (manual). For flow rates and technical data see table and diagrams.
8.1.4 - PB-F PUMP CONTROL DESCRIPTION (Fig. 17)
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ON/OFF SWITCH (1)
Main power supply
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GREEN L.E.D. ON
Power supply ON
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RED L.E.D. ON (3)
Shows the pump pulse frequency
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MANUAL /W. METER SELECTOR (5): 2 position
MANUAL: the pump will work as a normal manual pump: the flow is control L.E.D. by regulating the pulse
frequency knob (7) (% FLOW);
During manual operation the pump is independent from the w. meter external pulses: manual operation is
also used to prime the pump at a fixed flow rate.
W. METER: the pump works according to the pulses received by means of a Reed Contact (water meter or
other pulse emitting device): for every contact received the pump will inject additive.
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FLOW ADJUSTMENT KNOB (7) (% FLOW)
Set the pump pulse/minute at 100% of the max flow (knob 7 at full range scale).
PLEASE NOTE
In order to reach the required concentration of additive into the system always consider the PB-F functioning
mode, choose the correct size of pulse emitting w. meter and the right pump type (cc/stroke); to optimize the
dosage vary the concentration of the additive solution according to requirements.
When selecting the w. meter, check its pulse output per liters and bear in mind that PB-F model can accept
up to 6.000 external pulses per hour. Over this value, a protection system is activated to temporary stop the
pump.
8.1.5 - LEVEL CONTROL
The dosing pump is supplied with level control setting and upon request floating level switch.
When the level of the additive is lower than the switch, the level alarm and yellow L.E.D. are ON: the pump is
OFF.
The level control alarm goes ON with 5 seconds delay.
Fig. 17
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40
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