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Bently Nevada 330400 / 330425 Accelerometer
The Bently Nevada 330400 / 330425 Accelerometers are designed for critical machinery applications that require casing acceleration measurements, such as gear mesh monitoring. The 330400 meets the requirements of American Petroleum Institute (API) Standard 670, offering a 50 g peak amplitude range with a sensitivity of 100 mV/g. The 330425 model is similar in design but provides a higher amplitude range of 75 g peak and a sensitivity of 25 mV/g.
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Categories: Accelerometer, Inertial Sensors
Description
The Bently Nevada 330400 / 330425 Accelerometers are high-performance vibration sensors designed for critical machinery monitoring where accurate casing acceleration measurement is required, such as gear mesh analysis. Built to meet API 670 standards, these accelerometers deliver reliable and precise vibration data for demanding industrial applications including turbines, compressors, gearboxes, and other rotating equipment.
The 330400 Accelerometer offers a 50 g peak amplitude range with 100 mV/g sensitivity, while the 330425 Accelerometer provides a higher 75 g peak range with 25 mV/g sensitivity. With rugged construction and dependable performance, these sensors support advanced condition monitoring, predictive maintenance, and machinery protection programs.
QTech Safety is a leading supplier of Bently Nevada 330400 / 330425 Accelerometer in Ireland, offering competitive prices and fast worldwide shipping across United Kingdom (UK), Germany, France, Italy, Spain, United States USA, Canada, Mexico, and Western Australia (Perth). Buy Bently Nevada Accelerometers from one of Ireland’s most trusted industrial safety equipment suppliers.
Features of Bently Nevada 330400 / 330425 Accelerometer
- Designed for critical machinery vibration monitoring
- Provides casing acceleration measurement for gear mesh and high-speed applications
- API 670 compliant (330400 model)
- 330400: 50 g peak amplitude range with 100 mV/g sensitivity
- 330425: 75 g peak amplitude range with 25 mV/g sensitivity
- Rugged, hermetically sealed stainless steel housing for harsh environments
- High-reliability industrial vibration transducer
- Supports predictive maintenance and condition monitoring systems
Technical Specifications of Bently Nevada 330400 / 330425 Accelerometer
Sensitivity:
• 330400: 10.2 mV/m/s² (100 mV/g) ±5%
• 330425: 2.5 mV/m/s² (25 mV/g) ±5%Acceleration Range:
• 330400: 490 m/s² (50 g peak)
• 330425: 735 m/s² (75 g peak)Frequency Response: 10 Hz to 15 kHz (±3 dB) / 30 Hz to 10 kHz (±10 %)
Operating Temperature: -55 °C to +121 °C (-67 °F to +250 °F)
Power Requirement: -24 ± 0.5 V DC; typical 2 mA bias current
Transverse Sensitivity: < 5 % of axial
Mounted Resonant Frequency: > 30 kHz
Noise Floor (Broadband):
• 330400: ~0.039 m/s² (0.004 g) rms
• 330425: ~0.098 m/s² (0.01 g) rmsEnvironmental: Hermetically sealed stainless steel housing; 100 % condensing, non-submerged
Shock Survivability: up to ~5000 g peak
Physical: 3-pin MIL-C-5015 connector, ~99 g (3.5 oz) weight, 23 mm diameter × ~59 mm height
Accelerometers Part Number & Configuration Guide
Standard (Example) Part Number
330400-01-00
This is a reference configuration for the Bently Nevada 330400 / 330425 Accelerometer. It represents one commonly supplied setup and helps customers understand how the part number is structured.
Configurable Part Number Format
3304XX-XX-XX
Each X / XX in the part number indicates a selectable option that can be customized based on your application requirements such as Sensitivity & Range, Mounting Thread Option & Approvals.
✅ Important: Final part number depends on the exact configuration needed for your machinery, environment, and monitoring system.
Applications
The Bently Nevada 330400 / 330425 Accelerometers are commonly used in monitoring critical rotating machinery, including:
Steam and gas turbines
Compressors
Gearboxes (gear mesh monitoring)
High-speed motors
Pumps in critical service applications
Why Choose QTech Safety?
At QTech Safety, we’re more than just a safety supplier we’re your trusted partner in workplace protection and compliance.
Here’s why companies across UK and Ireland (EU) choose us for safety products and training:
- Comprehensive Range of Safety Equipment:
From gas detection and PPE to industrial safety tools, we offer one of the widest selections of trusted brands all at competitive Irish market prices. - Test & Measurement Instruments You Can Trust:
We supply a wide range of test and measurement instruments from the most leading and trusted brands, including industrial sensors, multimeters, oscilloscopes, accelerometers, proximity sensors, and other advanced measurement tools to support accurate diagnostics, condition monitoring, calibration, and maintenance applications. - Expert Health & Safety Training:
We provide professional health and safety training programmes designed to help your workforce stay compliant and confident on the job. - Fast, Reliable Delivery Worldwide:
Whether you’re in Texas United States or Perth Western Australia, our fast delivery service ensures you get your safety equipment quickly and efficiently. - Trusted by European Businesses:
We’re proud to support industries across Europe (UK) with certified safety solutions, expert advice, and responsive customer service.
We Ship Worldwide
At QTech Safety, we supply industrial sensors and instrumentation across Ireland, offering fast and reliable worldwide delivery. Through strong global logistics partnerships, we ensure efficient shipping and professional support for customers in Europe, North America, and Australia.
🡆 Europe (United Kingdom, Ireland, Germany, France, Italy, Spain, and the rest of European Union)
🡆 Australia (Western Australia WA, Queensland QLD, and New South Wales NSW)
🡆 North America (United States, Canada, Mexico)
