PR9268/200-000 | Emerson EPRO Electrodynamic Velocity Sensor

PR9268/200-000 is a self-powered electrodynamic seismic velocity sensor from Emerson EPRO, used for absolute casing vibration measurement on bearing housings, turbine casings, pump and fan supports in TSI turbine supervisory and machinery protection systems. This variant features connector termination (no integrated armored cable), the suffix /200 defines vertical installation orientation and -000 means cable is not pre-fitted, requiring field cable assembly by end users.

Working on seismic electromagnetic induction principle, PR9268/200-000 outputs AC voltage proportional to vibration velocity and requires no external excitation power. It is widely used together with EPRO eddy current probes for complete turbo machinery condition monitoring in power, oil & gas and petrochemical plants.

Key Features

• Passive self-powered electrodynamic velocity pickup, no external power supply needed
• Vertical mounting configuration for Z-axis absolute casing vibration measurement
• Connector version without factory pre-mounted armored cable (-000), field wiring optional
• Sensitivity: 17.5 mV/mm/s (±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, reduces cross-axis measurement error
• Robust stainless steel sensor housing, splash-proof IP55 protection grade
• Sensor operating temperature: -20℃ ~ +100℃
• M8×1 mounting stud for direct installation on bearing pedestals and equipment casings
• Amplitude linearity <2%, low drift and high repeatability for safety protection interlock
• Compatible with EPRO MMS6000, MMS6100 monitoring racks and Emerson AMS 6500 system
• API 670 compliant for critical rotating machinery health monitoring

Technical Specifications

Model: PR9268/200-000 Brand: EPRO (Emerson) Sensor Type: Electrodynamic seismic velocity transducer (self-powered passive sensor) Mount Orientation: Vertical Z-axis casing vibration Cable Option: -000 = no integrated factory cable, connector termination Measurement Principle: Seismic electromagnetic induction, self-generating AC voltage Sensitivity: 17.5 mV/mm/s ±5% Frequency Response: 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: -20℃ ~ +100℃ Housing Material: Stainless steel Mount Thread: M8×1 mm Protection Grade: IP55 Internal Resistance: 1723Ω ±2% Inductance: ≤90 mH Output Signal: AC voltage proportional to casing vibration velocity Recommended Load: ≥100 kΩ input impedance for monitoring unit Measured Parameter: Absolute bearing housing vibration velocity (mm/s)

Applications

• Power generation: Steam turbine, gas turbine, generator bearing housing absolute vibration monitoring
• Oil & gas: Centrifugal compressors, expanders, large process pump casing vibration protection
• Petrochemical industry: Critical rotating machinery condition monitoring, vibration alarm and trip protection
• Heavy industry: Large fans, blowers, hydro turbine casing vibration measurement
• TSI machinery protection system: Complementary sensor paired with PR6426 eddy current probes for full shaft & casing monitoring

Why Choose PR9268/200-000

EPRO PR9268 series velocity transducers are industry standard absolute vibration sensors for turbo machinery TSI systems. PR9268/200-000 vertical connector variant without factory cable offers flexible on-site cable selection, ideal for projects where custom cable length or special high-temperature cable is required.

Being passive self-powered, it simplifies field wiring and eliminates power supply failure risks. Stainless steel rugged housing withstands oily, dusty industrial environments. We supply original new PR9268/200-000 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 and cable suffix codes. Contact us for datasheet, dimension drawing and formal quotation.

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FAQ

Q: What does PR9268/200-000 measure?

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

Q: What do /200 and -000 mean?

A: /200 = vertical mounting orientation; -000 = connector termination without factory pre-installed armored cable, field cable assembly needed.

Q: Does PR9268/200-000 need external power supply?

A: No, it is passive self-powered electrodynamic velocity sensor and generates AC signal from casing vibration movement.

Q: What monitoring systems are compatible with PR9268/200-000?

A: It works with EPRO MMS6000, MMS6100 series monitors and Emerson AMS 6500 machinery health systems.

Q: What is the difference between PR9268/200-000 and PR9268/017-100?

A: PR9268/017-100 is vertical with factory 10m integrated armored cable. PR9268/200-000 is vertical connector type without pre-fitted cable for custom field wiring.

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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