PPS

KOBOLD PPS Flow Switch

The KOBOLD PPS flow switch is intended for applications in which an electrical switching function is required once a specific flow rate is achieved. The PPS is delivered with either a normally-open (N/O) or normally-closed (N/C) switching function, according to customer request. Switching is achieved through a magnetically coupled reed switch which is hermetically isolated from the medium. The device operates through use of a paddle which is pivoted out of the fluid system by flow pressure. A cam attached to the top of the paddle then lifts internal magnets into a region near the reed switch. The magnetic field of the magnets then activates the reed contacts. A spring acts against the force of the paddle to force magnets out of reed switch proximity if flow volume decreases beyond a specific value (determined by pipe diameter & paddle length). Once the PPS has switched, the paddle is almost totally removed from the flow path. This guarantees minimal pressure loss across the instrument.

Datasheet: kobpps.pdf

Operating Manual: kobppsm.pdf