Product Overview
The Bently Nevada 330425-02-05 Accelerometer is a rugged industrial vibration acceleration transducer engineered for continuous condition monitoring of critical rotating machinery. Designed for demanding industrial environments, this sensor delivers accurate casing vibration measurements, making it an excellent choice for turbines, compressors, pumps, motors, gearboxes, and other high-value assets where equipment reliability is essential.
Built with a hermetically sealed stainless-steel housing, the 330425-02-05 offers exceptional resistance to moisture, dust, corrosion, and harsh operating conditions. The -02 configuration features an M8 × 1 integral mounting stud, while the -05 option includes multiple hazardous-area certifications, making the sensor suitable for a wide range of industrial installations.
Whether used in predictive maintenance programs or integrated into advanced machinery protection systems, this accelerometer provides stable, repeatable performance to help minimize unplanned downtime and improve operational efficiency.
Engineering Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330425-02-05 |
| Product Type | Accelerometer |
| Technology | Piezoelectric Accelerometer |
| Sensitivity | 25 mV/g (2.5 mV/m/s²) ±5% |
| Measurement Range | 75 g Peak |
| Frequency Response | 10 Hz – 15 kHz (±3 dB) |
| Operating Voltage | -24 ±0.5 VDC |
| Bias Current | 2 mA Nominal |
| Output Bias Voltage | -8.5 ±0.5 VDC |
| Electrical Connection | 3-Pin MIL-C-5015 Connector |
| Housing Material | 316L Stainless Steel |
| Protection Rating | Equivalent to IP68 (Sensor Body) |
| Operating Temperature | -55°C to +121°C |
| Mounting Thread | M8 × 1 Integral Stud |
| Hazardous Area Approval | CSA, ATEX, IECEx |
| Dimensions | 23 mm × 23 mm × 59 mm |
| Weight | Approximately 99 g (0.099 kg) |
Typical Industrial Applications
The Bently Nevada 330425-02-05 is widely deployed in industrial monitoring systems that demand dependable vibration measurement and long-term operational stability.
Typical applications include:
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Steam turbines
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Gas turbines
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Industrial compressors
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Centrifugal pumps
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Electric motors
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Gearboxes
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Fans and blowers
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Cooling tower drive systems
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Process manufacturing equipment
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Power generation facilities
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Oil & gas production systems
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Petrochemical processing plants
Its wide frequency response enables reliable detection of bearing faults, gear mesh defects, imbalance, looseness, and structural vibration, supporting proactive maintenance strategies before failures occur.
Why Choose the 330425-02-05?
Selecting the right vibration sensor is critical for protecting valuable machinery. The 330425-02-05 combines precision engineering with proven industrial durability.
Key benefits include:
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High-frequency vibration measurement for critical machinery
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Excellent long-term measurement stability
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Robust stainless-steel construction for harsh environments
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Wide operating temperature capability
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Compact design simplifies installation in confined spaces
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Excellent resistance to shock, moisture, and corrosion
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Hazardous-area certifications for demanding industrial applications
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Reliable performance in continuous monitoring systems
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Low maintenance requirements
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Trusted solution for predictive maintenance and machinery protection programs
Frequently Asked Technical Questions
1. What does the "02-05" suffix indicate?
"02" specifies the M8 × 1 integral mounting stud, while "05" indicates multiple international hazardous-area approvals including CSA, ATEX, and IECEx.
2. What type of sensor is this?
It is a piezoelectric accelerometer designed for industrial vibration monitoring.
3. What is the measurement range?
The sensor measures vibration up to 75 g peak.
4. What frequency range does it support?
It provides a frequency response from 10 Hz to 15 kHz, making it suitable for both low- and high-frequency machinery diagnostics.
5. Can it operate in hazardous environments?
Yes. The -05 configuration includes multiple hazardous-area certifications for industrial installations.
6. What materials are used in the housing?
The housing is manufactured from corrosion-resistant 316L stainless steel.
7. What operating temperature can it withstand?
The accelerometer is designed to operate from -55°C to +121°C.
8. Is the sensor waterproof?
The sensor body provides protection equivalent to IP68, offering excellent resistance to dust and water ingress.
9. Which machines commonly use this accelerometer?
It is commonly installed on turbines, motors, pumps, compressors, fans, gearboxes, and generators.
10. Why is this model suitable for predictive maintenance?
Its high sensitivity, broad frequency response, and durable construction enable early detection of mechanical faults, helping reduce maintenance costs and avoid unexpected equipment failures.
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