PR9268/201-000 | EPRO | Electrodynamic Velocity Sensor

Description

The PR9268/201-000 is an electrodynamic velocity sensor designed for absolute mechanical vibration measurement. Operating on an electrodynamic principle, it generates a voltage signal proportional to vibration speed, with measurable frequency ranges of 10 to 1000 Hz and 4 to 1000 Hz, and a peak-to-peak amplitude capacity of up to 3 mm. It features a rugged, industrial-grade construction with IP 55 or IP 65 waterproof rating, enabling installation in hazardous environments, and offers high sensitivity with strong anti-interference performance via its high-output, low-impedance measurement coil.

Key dynamic specifications for related base models include a sensitivity of 17.5 millivolts per mm per second, a natural frequency of 4.5 Hz ± 0.75 Hz at 20 degrees Celsius, transverse sensitivity < 0.1 at 80 Hz, amplitude linearity < 2%, maximum continuous acceleration of 10g, maximum intermittent acceleration of 20g, maximum transverse acceleration of 2g, damping coefficient of approximately 0.6% at 20 degrees Celsius, resistance of 1723Ω ± 2%, inductance ≤ 90 mH, and active capacitance < 1.2 nF. Available in multiple base models, including PR 9268/60 and PR 9268/70 for high-temperature environments up to 200 degrees Celsius such as gas turbines, it supports three sensitivity options and is widely applied in industrial settings for monitoring turbomachinery, fans, compressors, gearboxes, water pumps, and coal mills.