SERIES 'AA' .006 GPH to 2.0 GPH (.38 to 126 ml/M) Series AA_4, AA_5 and AA_6 provide output ranges of 100:1. Series AA_7 and AA_8 offer output ranges of 66:1.
SERIES 'B' and 'C' .008 GPH to 25 GPH (.05 to 1578 ml/M) Series B and C provide output ranges of 100:1.
INTERNAL / EXTERNAL CONTROL, Series AA7, B7, C7 These metering pumps offer the versatility of a selector switch for either internal (manual) or external (automatic) control. Perfect for proportional treatment installations, or for use with the A/D converter or ampere-time meters where pump stroke frequency must vary linearly in response to plating ampere-hours. These pumps respond to any external switch closure, providing automatic stroke frequency control or proportional feeding. Series B7 & C7 also include adjustable electronic pressure control as a standard feature. This reduces the electrical load to the solenoid based on pump pressure required.
MICROPROCESSOR CONTROL, Series AA9, B9, C9 These are programmable electronic pumps featuring microprocessor-based control which employs an LCD display and a 4-key tactile keypad. They also come with continuous memory back-up which insures the integrity of your programmed values in the event of a power failure and keypad adjustable pressure control which reduces noise, shock and vibration during operation. The pump can be run in either manual / external mode select (0-100 sph or 1-100 spm) or external modes of 4-20 mA input control, both direct or inverse. It can also multiply or divide incoming pulses from a voltage free reed switch, transistor, opto-coupler or Hall Effect sensor.