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Product Introduction
The Epro PR9268/617-100N is a high-precision electrodynamic velocity sensor, developed to deliver accurate vibration measurement for rotating machinery in industrial environments. Designed for robust, long-term deployment, this sensor is commonly used in predictive maintenance and condition monitoring systems. The PR9268 series is recognized for its reliability, mechanical durability, and consistency in producing linear output across a wide frequency range. The model PR9268/617-100N is tailored for horizontal mounting and features a built-in damping system for optimized response in demanding applications.
Epro, now part of Emerson, manufactures the PR9268 series to stringent quality standards, making it a preferred choice in petrochemical, power generation, and heavy industrial settings.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | PR9268/617-100N |
| Measurement Principle | Electrodynamic velocity sensing |
| Measuring Range | 100 mm/s (RMS) |
| Frequency Range | 10 Hz – 1,000 Hz (±3 dB) |
| Sensitivity | 28.5 mV/mm/s (±5%) |
| Direction Sensitivity | Horizontal |
| Output Type | Analog Voltage |
| Mounting | Screw mounting (M8 or as specified) |
| Case Material | Stainless Steel |
| Protection Class | IP65 |
| Operating Temperature Range | -30°C to +90°C |
| Shock Resistance | 1000 g peak |
| Connector Type | MIL-C-5015 or cable gland (customizable) |
| Electrical Isolation | ≥ 10⁸ Ohm |
| Weight | 1.05 kg |
| Dimensions | 78 × 58 mm |
Applications
The Epro PR9268/617-100N is widely used in the following industrial scenarios:
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Steam and Gas Turbines: Monitoring of bearing and casing vibrations.
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Centrifugal Compressors: Ensuring smooth operation by tracking dynamic balance and rotor behavior.
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Industrial Fans and Pumps: Condition monitoring to detect misalignment or imbalance early.
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Generators and Motors: Detecting mechanical looseness or resonance issues.
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Paper Machines and Mills: High-frequency monitoring in rotating paper rolls and mechanical presses.
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Petrochemical Plants: Integration with online monitoring systems like MMS and SCADA.
Advantages
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High Sensitivity: The sensor’s precision makes it ideal for detecting even low-amplitude vibrations.
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Broad Frequency Response: Supports condition monitoring across a wide operating bandwidth.
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Robust Design: Engineered with stainless steel housing and high IP protection to withstand harsh environments.
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Mechanical Durability: Built to tolerate high shock and vibration without signal degradation.
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Low Maintenance: Passive operation with no power supply needed, reducing total lifecycle cost.
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Standardized Output: Easy integration with most monitoring systems and signal conditioners.
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EMC Resistance: Designed to operate reliably in electrically noisy industrial environments.
Frequently Asked Questions (FAQ)
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Q: What type of signal does the PR9268/617-100N output?
A: It provides an analog voltage signal proportional to vibration velocity. -
Q: Can this sensor be used in vertical applications?
A: This model is optimized for horizontal mounting. For vertical configurations, Epro offers specific variants. -
Q: What monitoring systems is this sensor compatible with?
A: It integrates seamlessly with Epro MMS, Emerson CSI, Bently Nevada, and other industry-standard systems. -
Q: What is the primary failure mode of this sensor?
A: Mechanical damage from incorrect mounting or exposure to extreme shock beyond its rated 1000g. -
Q: Does it require a power supply?
A: No, it is a passive sensor and does not need external power. -
Q: Can the sensor be installed in hazardous areas?
A: This version is non-Ex. For hazardous areas, Epro provides ATEX-certified variants. -
Q: Is the output linear?
A: Yes, the sensor maintains a linear output across the specified frequency range. -
Q: How long is the standard cable?
A: The default cable length is 5 meters. Other lengths are available on request. -
Q: What happens if the sensor gets wet?
A: It is IP65-rated, providing effective protection against water and dust ingress. -
Q: How often does this sensor need calibration?
A: Typically every 2–3 years depending on operating conditions, as per ISO standards.
Related Models from the Same Series or Functionality
| Model Number | Description | Mounting Orientation | Frequency Range | Sensitivity |
|---|---|---|---|---|
| PR9268/617-000 | Standard version without damping | Horizontal | 10 – 1000 Hz | 28.5 mV/mm/s |
| PR9268/607-100N | Vertical mounting version | Vertical | 10 – 1000 Hz | 28.5 mV/mm/s |
| PR9268/617-050 | Short-body version for tight spaces | Horizontal | 10 – 600 Hz | 28.5 mV/mm/s |
| PR9268/617-200 | High-sensitivity version | Horizontal | 5 – 1000 Hz | 45 mV/mm/s |
| PR9268/607-000 | Basic vertical model | Vertical | 10 – 1000 Hz | 28.5 mV/mm/s |
| PR9268/617-110 | IP67 high-protection variant | Horizontal | 10 – 1000 Hz | 28.5 mV/mm/s |
Popular Models from the Same Brand (Epro/Emerson)
| Model Number | Description | Category | Application Use Case | Interface Type |
|---|---|---|---|---|
| PR6423/002-030 | Eddy current proximity probe | Displacement Sensing | Shaft vibration monitoring | CON021 Connector |
| PR6424/014-040 | High-temp eddy current sensor | Displacement Sensing | Turbine bearing temperature | CON041 Connector |
| MMS3120/022-100 | Monitoring system module | Vibration Monitoring | Machinery health monitoring | Rack-mounted |
| CON041 | Connection module for PR6424 | Accessory | Signal conditioning | Terminal strip |
| PR6423/005-010 | Eddy current probe for axial movement | Displacement Sensing | Axial displacement monitoring | CON021 Compatible |
| MMS6110 | Compact vibration monitoring unit | Condition Monitoring | Compact machinery integration | DIN-rail |
