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Velocity Sensors

Product catalog summary

Overview
Brüel & Kjær Vibro has been a leading manufacturer of vibration measuring instruments and machine condition monitoring systems for over 50 years. They offer a wide range of sensors for measuring mechanical vibrations in rotating machines, providing solutions for various applications worldwide.

Types of Sensors

Velocity Sensors: Used for measuring absolute casing and bearing vibrations. They operate in the frequency range of 1 Hz to 2,000 Hz and are suitable for high temperatures, explosive areas, and underwater applications.
Displacement Sensors: Measure relative shaft vibration, shaft position, expansion, speed, phase position, and eccentricity.

Key Features of Velocity Sensors

High reliability proven by long-term industrial installations.
Electronic linearization allows accurate measurement below resonant frequencies.
Stainless-steel casing ensures durability in harsh environments.
Easy installation with central threaded bore and suitable accessories.
No power supply required for active sensors, delivering high output voltage at low internal resistance.

Technical Specifications

Protection classes range from IP 44 to IP 68.
Operating temperature ranges from -40°C to +200°C depending on the model.
Measurement principles include electro-dynamic sensors with frequency ranges from 1 Hz to 2,000 Hz.
Various models are available for different applications, including permanent installations, Ex-areas, underwater, and portable use.

Applications and Installation
Velocity sensors are used in various industrial applications, including standard, Exe, and underwater installations. They are designed for easy integration with existing systems, featuring different cable designs and mounting options.

Contact Information
For more information, visit the Brüel & Kjær Vibro website or contact their offices in Denmark and Germany.

Catalog excerpts

BrUel & Kjaer Vibro Velocity sensors

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Quality products from a single source For more than 50 years, Brüel & Kjær Vibro has been a leading manufacturer of vibration measuring instruments and machine condition monitoring systems. Brüel & Kjær Vibro provide world-wide services as well as rapid and customized system solutions. For measuring and monitoring mechanical vibration in rotating machines, the technically correct acquisition of measurements is essential. The appropriate sensor for your measurement task With the extensive product range of Brüel & Kjær Vibro sensors, you will find the most suitable solution for your application....

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The velocity sensors of Bruel & Kjffir Vibro measure mechanical vibrations in the frequency range 1 Hz to 2,000 Hz. Their high level of reliability has been proven by long-term installations in industry. Velocity sensors are used for the measurement of the • absolute casing vibrations • absolute bearing vibrations in machines. Coordinated solutions The resonant frequencies of the velocity sensors are at 8 Hz or 15 Hz depending upon their different constructional features. Through electronic linearization of the respective frequency range it is possible to also measure vibrations that lie well...

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4) can also be supplied as VS-0188 with central thread M 8 5) typically by means of a magnetic head, (AC-172, AC-273) or probe (AC-171, AC-172)

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Velocity sensors Types and dimensions (80 with VS -079) Measurement direction Measurement direction

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Velocity sensors for permanent installation

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Velocity sensors Types and dimensions (75 with VS-277) Measurement direction

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Velocity sensors for underwater use

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Installation examples Standard application Sensor Protective conduit Signal cable delivered with the sensor Signal cable - white - brown - black/yellow Signal - yellow Com - white -24 VDC - red 0V - black Protective conduit Signal cable Signal 0V PA/equipotential bonding Shield - blue - brown - green/yellow - black/yellow Signal cable Standard signal cable - yellow - white - yellow - white

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