PR9268/017-100 | Emerson EPRO Electrodynamic Velocity Sensor

PR9268/017-100 is a self-powered electrodynamic seismic velocity sensor from Emerson EPRO, designed to measure absolute casing vibration velocity on bearing housings, turbine casings, pump and fan supports for Turbine Supervisory Instrumentation (TSI) and machinery protection systems. This vertical mount velocity pickup comes with integrated 10m armored cable, widely deployed in power, oil & gas and petrochemical rotating machinery monitoring.

Working on electrodynamic induction principle, PR9268/017-100 generates AC voltage signal proportional to vibration velocity without external power supply. The suffix code /017 stands for vertical installation orientation; -100 represents 10 meters stainless steel armored integrated cable, suitable for permanent mounting on machine casings for continuous absolute vibration monitoring.

Key Features

• Self-powered electrodynamic velocity sensor, no external power required
• Vertical mounting configuration for Z-axis casing absolute vibration measurement
• 10m integrated stainless steel armored shielded cable, suffix -100 defines cable length
• Sensitivity: 17.5 mV/mm/s (±8.5% @80Hz, 20°C, 100kΩ load)
• Frequency response range: 14 Hz ~ 1000 Hz, natural frequency 14Hz ±7%
• Max continuous acceleration 10g, intermittent peak acceleration up to 20g
• Low transverse sensitivity <0.1 at 80Hz, minimizes cross-axis measurement interference
• Stainless steel hermetically sealed sensor housing, IP65/IP67 protection
• Wide operating temperature: Sensor -30℃ ~ +120℃; cable -40℃ ~ +180℃
• M8×1 mounting thread for direct installation on bearing housings and equipment casings
• Excellent amplitude linearity <2%, stable long-term performance for machinery protection
• Compatible with EPRO MMS6000 series monitoring racks and Emerson AMS 6500 system
• API 670 compliant for critical turbo machinery health monitoring

Technical Specifications

Model: PR9268/017-100 Brand: EPRO (Emerson) Sensor Type: Electrodynamic seismic velocity pickup (self-powered) Mount Orientation: Vertical (Z-axis casing vibration) Integrated Cable Length: 10 m (suffix -100) Measurement Principle: Electromagnetic induction, self-generating voltage output Sensitivity: 17.5 mV/mm/s Frequency Range: 14 Hz ~ 1000 Hz Natural Frequency: 14 Hz ±7% @20°C Max Vibration Amplitude: 500 μm peak-to-peak Amplitude Linearity: <2% Continuous Acceleration: 10g peak Intermittent Acceleration: 20g peak Transverse Acceleration Limit: 2g Transverse Sensitivity: <0.1 @80Hz Sensor Operating Temperature: -30℃ ~ +120℃ Cable Operating Temperature: -40℃ ~ +180℃ Housing Material: Stainless steel Mount Thread: M8×1 mm Protection Grade: IP65 (cable entry), IP67 sensor head Internal Resistance: 1723Ω ±2% Inductance: ≤90 mH Output Signal: AC voltage proportional to vibration velocity Recommended Load: ≥100 kΩ input impedance for monitor Measured Parameter: Absolute casing vibration velocity (mm/s)

Applications

• Power generation: Steam turbine, gas turbine, generator bearing housing vibration monitoring
• Oil & gas: Centrifugal compressors, expanders, process pump casing vibration protection
• Petrochemical: Critical rotating machinery absolute vibration alarm and condition monitoring
• Heavy industry: Large fans, blowers, hydro turbine casing vibration measurement
• TSI machinery protection system: Casing vibration monitoring for early failure warning and trip logic

Why Choose PR9268/017-100

EPRO PR9268 series velocity sensors are industry standard casing vibration transducers for turbo machinery TSI systems. PR9268/017-100 vertical version with 10m armored cable is ideal for measuring absolute housing vibration, complementing eddy current probes which measure shaft relative vibration.

It is passive and self-powered, so no excitation power is needed, simplifying field wiring. The stainless steel armored cable resists abrasion, high temperature and mechanical damage in plant environments. We supply original new PR9268/017-100 velocity sensors with inspection report and factory calibration certificate, global air & sea shipping available. We also handle inquiries for other PR9268 variants with different orientation codes and cable lengths. Contact us for datasheet, dimension drawing and formal quotation.

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FAQ

Q: What does PR9268/017-100 measure?

A: It measures absolute casing vibration velocity of bearing housings and machine casings, used for turbo machinery TSI protection.

Q: What is the meaning of /017 and -100?

A: /017 = vertical mounting orientation; -100 = 10 meters integrated armored cable.

Q: Does PR9268/017-100 need external power supply?

A: No. It is a self-powered electrodynamic velocity sensor, generating AC voltage signal by vibration movement.

Q: What system can PR9268/017-100 connect to?

A: It works with EPRO MMS6000 series monitors and Emerson AMS 6500 machinery health systems.

Q: What is the difference between velocity sensor PR9268 and eddy current probe PR6426?

A: PR9268 velocity sensor measures casing absolute vibration. PR6426 eddy current probe measures shaft relative vibration, clearance and displacement. They are often used together in one TSI system.

PR6426/000-010+CON021

Our products are widely used in CNC mechanical metallurgy, petroleum and natural gas, and petrochemical industries,Chemical industry, paper and printing, textile printing and dyeing, machinery, electronic manufacturing, automobile manufacturing,Plastic machinery, electricity, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution.The quoted price is not the actual price. Please contact the shopkeeper before placing the order to confirm the price and delivery time!!!

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