EPRO PR9268/602-000 Triaxial Seismic Vibration Velocity Sensor

The EPRO PR9268/602-000 is a high-end integrated triaxial seismic velocity sensor in the PR9268 series, functionally upgraded from conventional single-axis 201/202 models. Adopting advanced integrated three-dimensional electromagnetic induction structure, it synchronously captures axial, horizontal and transverse absolute vibration velocity of rotating machinery casings and base structures with a single unit. Designed for full-space structural vibration monitoring, it features wide-frequency response, high orthogonal axis isolation and industrial rugged integration, eliminating monitoring dead zones of single-direction sensors. Fully compatible with MMS6000 TSI system and multi-channel seismic signal acquisition modules, it is specially used for comprehensive vibration condition assessment and structural fault diagnosis of large-scale heavy-duty rotating units in power, petrochemical and process industrial fields.

1. Triaxial Integrated Structural & Installation Advantages

PR9268/602-000 adopts die-cast integrated sealed alloy housing with built-in precision triaxial spring-mass induction system. Different from separate single-axis sensors, its internal orthogonal layout strictly isolates mutual interference between X/Y/Z three axes, ensuring independent and accurate vibration induction in each direction. The integral rugged structure resists long-term industrial vibration impact, oil mist erosion and temperature cycling changes, maintaining consistent structural stability in heavy-load and complex working conditions.

Featuring compact all-in-one design, this sensor realizes three-direction full-space vibration monitoring with one-time installation, greatly simplifying on-site layout and reducing equipment modification workload compared with installing multiple single-axis sensors. It adopts standard fixed mounting structure for direct attachment on equipment bearing housings, unit bases and structural supports. No air gap adjustment or periodic calibration is required after installation, supporting plug-and-play replacement of old decentralized multi-point vibration monitoring schemes and optimizing on-site wiring aesthetics and maintainability.

2. Full-space Triaxial Vibration Measurement Performance

Engineered for three-dimensional vibration acquisition, PR9268/602-000 outputs linear vibration velocity signals synchronously for X (horizontal), Y (transverse) and Z (axial) directions. It supports a wide professional frequency response range covering conventional mechanical vibration fault bands, accurately capturing multi-directional vibration characteristics such as structural resonance, base looseness, bearing abnormal vibration and equipment deflection displacement. Each axis maintains consistent industrial standard sensitivity and excellent linearity, effectively avoiding measurement saturation and data distortion under complex multi-dimensional vibration superposition conditions.

With ultra-low inter-axis crosstalk design, the sensor suppresses invalid vibration interference between different directions and improves the authenticity and accuracy of three-dimensional vibration data. It maintains ultra-stable zero drift performance under full working temperature range and long-term continuous operation, providing complete multi-dimensional data support for unit vibration vector analysis, structural stress judgment and equipment trend early warning, which cannot be realized by single-axis monitoring sensors.

3. Integrated Structure & Industrial Environmental Adaptability

Adopting high-precision integrated winding coil and optimized damping structure, the sensor features stable internal impedance and consistent dynamic response of three axes. The fully sealed industrial-grade housing reaches excellent dust-proof, waterproof and oil-proof level, adapting to harsh industrial environments such as bearing box oil mist, high humidity, dust accumulation and temperature fluctuation. The internal mechanical structure is strictly calibrated for fatigue resistance, resisting continuous operating vibration load and instantaneous mechanical impact.

Designed with integrated wiring interface, it avoids cable dispersion and multi-wire interference problems caused by multi-sensor combination. The whole machine undergoes strict aging and temperature cycle tests, with excellent environmental adaptability and long operational life. It effectively reduces the failure rate of multi-point monitoring systems and lowers long-term field operation and maintenance costs, suitable for 24/7 uninterrupted full-space online monitoring of heavy-duty units.

4. Multi-channel Signal Processing & System Matching Logic

PR9268/602-000 supports dedicated multi-channel seismic vibration acquisition modules and MMS6000 TSI system comprehensive monitoring cards, adopting targeted three-axis signal synchronous processing logic, completely different from single-axis signal demodulation mode:

• Triaxial Synchronous Acquisition Module: Supports simultaneous sampling of X/Y/Z three-direction vibration signals, with independent channel filtering for each axis to eliminate cross-axis clutter interference and restore true full-space vibration state.

• Multi-channel Field Conditioner: Optimized for integrated triaxial sensor signal transmission, realizing synchronous signal amplification and attenuation compensation, ensuring consistent waveform quality of three-axis data in complex electromagnetic environments.

• TSI System Comprehensive Analysis Card: Matches three-dimensional vibration data characteristics, realizing multi-directional vibration amplitude calculation, vector synthesis, fault frequency spectrum analysis and linkage alarm output.

5. Core Product Selling Points & Industrial Value

• All-in-one Triaxial Full-space Monitoring: Single sensor realizes three-dimensional vibration acquisition, replacing three single-axis sensors, simplifying system layout and reducing installation space occupation.

• Ultra-low Inter-axis Crosstalk Performance: Strict orthogonal isolation design ensures independent and accurate data of each axis, avoiding signal superposition distortion of combined single-axis schemes.

• Comprehensive Mechanical Fault Diagnosis: Provides full-space vibration vector data, supporting in-depth diagnosis of structural looseness, base deflection and multi-directional resonance faults that are difficult to identify by single-axis monitoring.

• Integrated Maintenance-free Design: No gap adjustment and multi-point calibration required, integrated wiring reduces on-site failure points, improving system operational reliability.

• Heavy-duty Industrial Environmental Adaptability: Rugged sealed structure adapts to harsh working conditions of large unit bases and heavy equipment cabins, suitable for long-term stable monitoring.

6. Industrial Application Scenarios

• Full-space structural vibration monitoring of large thermal power steam turbines, gas turbines and unit base foundations

• Multi-dimensional vibration condition diagnosis of petrochemical heavy-duty centrifugal compressors and large process rotating machinery

• Structural safety monitoring and resonance early warning for industrial heavy-load equipment supports and fixed base systems

• Upgrade and integration optimization of old decentralized single-axis multi-point vibration monitoring systems for large units