Product Releases

Shaft Rotation Speed Sensors

Tue, 09/25/2012 - 11:35am
Electro-Sensors, Inc.

The patented ST420, ST420-LT, and ST420-DI shaft rotation speed sensors from Electro-Sensors, Inc. (Minnetonka, MN) are 2-wire, loop-powered, analog-output shaft speed sensors. They detect passing magnets of a shaft-mounted pulsar disc or wrap and output a smooth, continuous 4-20 mA analog signal in direct proportion to shaft rotation speed. The ST420 is Intrinsically Safe for Class I and II hazardous locations. The ST420-LT and ST420-DI have integral conduit attachments, are NEMA 4X, IP65, and Dust Ignition-proof for Class II hazardous locations. According to the company, all models have rugged stainless-steel M18x1 housings for harsh environments and require no user calibration. Custom measurement ranges are available upon request.

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