Technical Specifications Output signal: 1.5 V AC minimum at 50 ft/min surface speed; frequency range: 2 Hz to 10 kHz; operating temperature: -50 °C to +120 °C; enclosure: IP67; probe diameter: 8 mm; thread: M8 × 1.0; housing: 316 stainless steel.
Functional Features High-sensitivity coil design; low-speed detection capability; passive operation; 316 stainless steel for corrosion resistance; non-contact measurement; compact probe size.
Application Scenarios Low-speed shaft speed measurement, small gear tooth detection, slow-speed conveyor monitoring, low-RPM machine protection, precision speed sensing at low speeds.
Performance Parameters Minimum detectable speed: 10 rpm typical with 20-tooth gear; signal-to-noise ratio: > 20 dB at minimum speed; vibration resistance: 20 g peak.
Material Composition 316 stainless steel housing, high-sensitivity fine-wire copper coil, high-flux neodymium magnet, epoxy potting, Tefzel insulated leads.
Structural Characteristics Small-diameter threaded probe; hex locknut; integral cable with Tefzel insulation; sealed front face.
Working Principle A high-flux magnet and high-sensitivity coil produce a stronger magnetic circuit. As ferrous teeth pass, reluctance changes induce a higher output voltage at lower speeds, enabling reliable speed detection at very low RPM.
Installation Requirements Mount in threaded hole aligned with target gear;
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