Stenner Pumps S Serie Manual De Instalación Y Mantenimiento página 49

CONTROL MODES MENU
PPM FEED – VARIABLE FLOW, HALL EFFECT
The Variable Flow, Hall Effect option is used with process systems with a variable flow. The pump
accepts a hall effect input from a flow meter (typically, a paddlewheel or turbine type meter).
Program the pump with the:
• Meter K factor
• Process minimum and maximum flow rate (GPM or LPM selected in the Units submenu of Configuration)
• Chemical concentration %
• Specific gravity of the chemical
• Desired PPM dosing rate of the chemical
The pump uses the following equations to calculate the required speed:
• GPD
Pump Output Required (GPD) =
Pump Speed (%) =
• LPD
Pump Output Required (LPD) =
Pump Speed (%) =
S Series FW 4.01.02 US and Canada 800.683.2378, International 904.641.1666 www.stenner.com
continued
Process GPM × Feed Rate PPM X 1440
Chemical Concentration % × 10,000 × Specific Gravity
Pump Output Required (GPD) × 100
Max Pump Flow (GPD)
Process LPM × Feed Rate PPM X 1440
Chemical Concentration % × 10,000 × Specific Gravity
Pump Output Required (LPD) × 100
Max Pump Flow (LPD)
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