Description
- EPRO PR9268/200-000 | Genuine EPRO Machinery Sensor
2. Unboxing & Physical Snapshot
- Brand & Model: EPRO PR9268/200-000
- Product Type: Electrodynamic velocity sensor for absolute casing vibration measurement on rotating machinery.
- Primary Applications: Steam turbines, gas turbines, hydro turbines, compressors, pumps, and fans where casing vibration monitoring is required.
- Sensor Orientation: Vertical mounting configuration (PR9268/20x series), designed for vertical installation.
- Approximate Physical Dimensions: Approximately 263 × 58 × 23 mm depending on cable and mounting configuration.
- Estimated Shipping Weight: Approximately 0.8–1.0 kg (1.8–2.2 lb) including protective packaging.
- Housing Material: Aluminum alloy housing for industrial vibration service.
- Cable Construction: Shielded PTFE insulated cable with industrial connection arrangement.
- Protection Rating: IP55 for PR9268/20x-x00 versions.
- Measurement Principle: Self-powered electrodynamic velocity sensing; no external sensor excitation required.
- What’s in the Box:
- EPRO PR9268/200-000 vibration velocity sensor
- Integrated sensor cable
- Protective packaging
- Calibration documentation when supplied
3. Product Introduction
Critical rotating equipment cannot tolerate inaccurate vibration information. The EPRO PR9268/200-000 is installed directly on machinery housings to measure absolute casing vibration velocity, converting mechanical movement into an electrical output signal for machinery protection and condition monitoring systems. It is commonly applied on turbines, compressors, and other large rotating assets where vibration trends are used for maintenance decisions.
This sensor is a precision mechanical instrument. Handle the sensing body carefully. The internal spring-mass assembly and electrical coil system must remain within calibration limits (especially after long storage periods or severe transport shock). Verify mounting orientation, cable condition, and connector integrity before commissioning.
4. Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | EPRO / Emerson |
| Model Number | PR9268/200-000 |
| Product Type | Electrodynamic Velocity Sensor |
| Measurement Application | Absolute casing vibration measurement |
| Sensor Orientation | Vertical |
| Measurement Principle | Electrodynamic velocity transducer |
| Sensitivity | 17.5 mV/mm/s |
| Frequency Range | 14 Hz to 1000 Hz |
| Natural Frequency | 4.5 Hz ±0.75 Hz at 20°C |
| Transverse Sensitivity | <0.1 at 80 Hz |
| Maximum Continuous Acceleration | 10 g |
| Maximum Intermittent Acceleration | 20 g |
| Amplitude Linearity | <2% |
| Resistance | Approximately 1723 Ω ±2% |
| Inductance | ≤90 mH |
| Operating Temperature | -20°C to +100°C |
| Humidity Range | 0–100% RH, non-condensing |
| Protection Class | IP55 |
| Weight | Approximately 930 g |
EPRO PR9268/200-000
5. Global Compliance & Industry Certifications
Expected regulatory approvals and compliance considerations for the EPRO PR9268/200-000 include:
- CE Mark — supports EMC compliance for industrial machinery monitoring installations.
- ATEX/IECEx — may apply for hazardous-area versions or approved system configurations.
- UL/cUL Recognition — depends on regional approval requirements and complete monitoring system configuration.
- RoHS Compliance — applicable to newer production revisions.
- Marine approvals such as DNV GL — require inclusion within a certified marine machinery monitoring package.
ATEX and IECEx approval is important when vibration monitoring equipment is installed near combustible gases or process vapors. Certification applies to the complete approved installation, including barriers, wiring, and monitoring equipment.
Verify specific lot certifications with OEM.
6. Long-Term Storage & Asset Preservation Guide
- Store the PR9268/200-000 in a dry, temperature-controlled warehouse with humidity below 60% RH. Moisture exposure can affect connector surfaces and metal interfaces over long periods.
- Keep the original protective packaging installed until field deployment. The cable, connector, and sensor mounting surface should remain free from contamination.
- Avoid dropping or mechanically striking the sensor. Internal electromechanical components may shift after excessive impact even when external damage is not visible.
- Record the sensor serial number, calibration information, and storage inspection date in the maintenance asset system.
- Do not coil the cable below its minimum bend radius. Repeated stress can damage internal conductors.
7. Physical Installation Prerequisites
- Mount the PR9268/200-000 vertically according to the approved machinery monitoring installation drawing.
- Ensure the mounting surface is clean, flat, and free of paint buildup or corrosion.
- Use the correct threaded mounting hardware and torque specification.
- Maintain cable separation from high-current motor cables and variable-frequency drive wiring.
- Leave sufficient cabinet clearance for associated monitoring equipment cooling; maintain at least 50 mm clearance above and below cabinet assemblies where natural convection is used.
- Verify signal grounding and shielding practices before startup.
- Inspect the cable armor, connector, and sensor body before installation.
8. Buyer’s FAQ (Logistics & Compliance Focus)
Q: What HS Tariff Code is commonly used for the EPRO PR9268/200-000?
A: Vibration measurement sensors are often evaluated under HS classifications related to measuring and inspection instruments, commonly within headings such as 9031. Final classification depends on the destination country’s customs rules and declared equipment function.
Q: Does Country of Origin affect procurement approval for this sensor?
A: Yes. COO documentation supports customs clearance, supplier qualification, and maintenance audit records. Keep the original EPRO label, packaging information, and certificate documents with the spare inventory.
Q: Should shipping insurance be purchased for the PR9268/200-000?
A: Recommended. Although the sensor is mechanically compact, it contains calibrated electromechanical components. Transport shock can affect measurement accuracy even when the housing appears undamaged.
Q: Does the PR9268/200-000 include firmware updates?
A: No. This is a self-powered electrodynamic vibration sensor and does not contain user-loadable firmware. Compatibility depends on the connected machinery protection system and signal input configuration.
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