Excellent PLC
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Product Introduction
The Epro PR9268/617-100-N is a high-precision electrodynamic velocity sensor designed for monitoring the absolute vibration velocity of machine casings and structural components in industrial rotating equipment. Based on electrodynamic principle, this robust sensor transforms mechanical vibration into an electrical signal proportional to vibration velocity, offering excellent linearity and wide frequency response.
As part of Epro’s trusted PR9268 series, the PR9268/617-100-N is ideal for use in condition monitoring, vibration protection systems, and predictive maintenance programs. It supports high-accuracy vibration measurement across a broad frequency spectrum, ensuring early detection of imbalance, misalignment, looseness, and other mechanical faults in turbines, compressors, pumps, motors, and fans.
With a compact, rugged construction and high immunity to electromagnetic interference, the sensor is optimized for harsh industrial environments, including applications in power plants, petrochemical facilities, steel production, and offshore platforms.
Product Specifications
| Parameter | Specification |
|---|---|
| Model Number | PR9268/617-100-N |
| Product Type | Electrodynamic Velocity Sensor |
| Measurement Principle | Electrodynamic velocity sensing |
| Sensitivity | 20 mV/mm/s ±5% |
| Measurement Range | ±50 mm/s RMS (typical) |
| Frequency Response (±3 dB) | 10 Hz to 1000 Hz |
| Natural Frequency | 4.5 Hz (internal) |
| Linearity | ±1% of full scale |
| Transverse Sensitivity | <5% |
| Output Type | Dynamic voltage output (mV/mm/s) |
| Operating Voltage | Passive sensor, no power required |
| Load Resistance | ≥10 kΩ |
| Case Isolation | >100 MΩ |
| Connector Type | MIL-C-5015 or cable gland |
| Cable Length | Up to 100 meters |
| Operating Temperature Range | -30°C to +120°C |
| Storage Temperature Range | -40°C to +150°C |
| Vibration Limit | 500 m/s² peak |
| Shock Limit | 1000 m/s² |
| Environmental Protection | IP65 or higher |
| Housing Material | Stainless steel |
| Mounting Thread | M8 x 1.25 or custom |
| Dimensions (H x Ø) | 78 × 58 mm |
| Weight | 1.05 kg |
| Compliance | CE, ATEX certified for hazardous areas |
Applications
The Epro PR9268/617-100-N velocity sensor is widely used in various industrial sectors, including:
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Steam and Gas Turbines: Absolute casing vibration measurement.
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Centrifugal and Reciprocating Compressors: Identifying structural looseness and imbalance.
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Industrial Pumps: Monitoring casing vibration for early fault detection.
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Electric Motors and Generators: Assessing mechanical health and performance.
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Fans and Blowers: Vibration diagnostics for imbalance and misalignment.
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Gearboxes: Detecting wear and mechanical degradation.
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Steel Mills and Rolling Equipment: Continuous vibration monitoring under harsh conditions.
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Offshore and Marine Platforms: Vibration measurement in extreme environments.
Advantages
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High Sensitivity and Accuracy: 20 mV/mm/s output ensures precise velocity measurements.
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Broad Frequency Response: Effective for both low and mid-frequency vibration monitoring.
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Passive Operation: No external power required simplifies installation.
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Compact, Rugged Design: Stainless steel housing suitable for harsh industrial environments.
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ATEX Certified: Safe for use in hazardous and explosive areas.
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Excellent Signal Quality: High immunity to electromagnetic interference (EMI).
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Wide Operating Temperature Range: Reliable performance from -30°C to +120°C.
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Flexible Mounting: Standard M8 thread or customized options available.
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Versatile Applications: Suitable for diverse industries and machinery.
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Low Maintenance: Proven reliability and long service life.
Frequently Asked Questions (FAQ)
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What is the function of the PR9268/617-100-N sensor?
It measures absolute vibration velocity of machine casings and structural components. -
What is the typical sensitivity of this sensor?
20 mV/mm/s ±5%. -
Is this sensor active or passive?
It is a passive sensor—no external power is required. -
What is the usable frequency range?
10 Hz to 1000 Hz (±3 dB). -
Can it be used in hazardous environments?
Yes, it is ATEX certified and approved for use in hazardous areas. -
What are the typical applications?
Used in turbines, compressors, motors, pumps, fans, gearboxes, and more. -
What is the maximum operating temperature?
Up to +120°C in continuous operation. -
How is it typically installed?
Mounted via an M8 x 1.25 thread or customized mounting options. -
What is the typical output signal?
Dynamic voltage output in mV/mm/s. -
Does it require special signal conditioning?
Compatible with standard vibration monitoring systems and modules such as Epro MMS series or Bently Nevada monitors.
Related Models (Same Series / Related)
| Model Number | Product Type | Key Features |
|---|---|---|
| PR9268/617-000-N | Velocity Sensor | Standard model, different mounting options |
| PR9268/617-050-N | Velocity Sensor | Medium sensitivity version |
| PR9268/617-200-N | Velocity Sensor | High sensitivity version |
| PR9268/617-400-N | Velocity Sensor | Extended temperature range |
| PR9268/617-800-N | Velocity Sensor | High EMI immunity for heavy industrial |
| PR9268/627-100-N | Velocity Sensor with Integral Cable | Fixed cable version for harsh environments |
Popular Epro Models (Same Brand)
| Model Number | Product Type | Key Features |
|---|---|---|
| PR6423/010-010 | Proximity Probe | Precision shaft vibration measurement |
| PR6424/014-040 | High-Temperature Proximity Probe | For extreme temperatures |
| MMS 6140 | Relative Rotor Vibration Monitor | Advanced vibration monitoring |
| MMS 6120 | Absolute Bearing Vibration Monitor | Bearing vibration diagnostics |
| MMS 6210 | Speed Monitoring Module | Machine overspeed protection |
| CON021 | Universal Signal Conditioner | For PR6422/PR6423/PR9268 sensors |
