Pump-solutions-group Neptune Polymaster Liquid Polymer Blend & Feed Manuel d'utilisateur télécharger pdf (Page 18)

INSTRUCTIONS FOR OPERATION OF POST-DILUTION UNIT

(Applies to 2 stage dilution furnished on models PA/PM-3000 and PA/PM-3000R only)

The models PA/PM-3000 include two separate water flow indicators with separate water flow adjustment

knobs. The primary dilution flow meter is located on the front face for the Polymaster. The second dilution or

post dilution flow indicator is inside the unit with the rate setting valve at the top of the flow meter.

When using the dual dilution unit, a maximum of 20gpm (1200 gph) of water may be passed through the

primary flow circuit into the Gatlin mixing chamber. Up to 30gpm (1800 gph) of water may be added by

means of the secondary or post dilution water flow indicator.

NOTE:

If the Polymaster stops and the amber fault light comes on when

turning on the post dilution unit, sufficient water flow or pressure

may not be available from your water source.

Complete steps 1-6 of the START -UP procedure on page II using only the primary flow indicator on the

front panel of the Polymaster. Calculate the desired final solution percentage and set the post dilution flow

indicator to provide the balance of dilution water required.

It is recommended that both primary and post dilution flow indicators be set to approximately the same flow

rate unless the total water exceeds 2400gph in which case the maximum of 1200gph of water is added by the

primary dilution flow meter and the balance is added by the post dilution flow meter.

The post dilution flow control valve is positioned at the top of the internal flowmeter. The Polymaster should

produce double the desired final solution and then process down to the desired final concentration.

EXAMPLE: If you need 2400 gph of a 0.5% solution, set the Polymaster to produce 1200 gph on the primary

dilution meter and l200gph of water on the secondary dilution water meter. The Gat1in will produce 1%

solution with the primary 1200gph of water and 12gph of neat polymer. The introduction of the secondary

1200gph of post dilution water will result in a total of 2400gph of a 0.5% final solution.

If a model PA/PM-3000 unit has been purchased and it is determined that less than 1200pgh of total solution

is required, then all of the dilution water should pass through the primary mixing circuit and the secondary

dilution water meter should not be used. This will ensure the maximum velocity of the final solution through

the static mixer.

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Pump-solutions-group Neptune Polymaster Liquid Polymer Blend & Feed Manuel d'utilisateur Page 18