The following schematic diagram shows the Morgan Pneumatic Chemical Injector () typical flow chart.

Pneumatic Chemical Injector Pump Electronic Control Module Schematic Diagram 

The () converts a 4-20mA or 1-5 VDC, to a pulsed pneumatic signal. The pneumatic signal varies from 0 – 50 pulses per minute or strokes per minute (SPM). The operating range of 0 – 50 SPM can be set to obtain a minimum of 0 – 10 (zero) and a maximum of 30 – 50 (span).

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