The Bently Nevada 330400-02-CN is a high-performance accelerometer designed for critical machinery casing vibration monitoring. Engineered to meet the stringent requirements of API 670, this transducer provides reliable acceleration measurements for industrial applications, including gear mesh monitoring and high-speed rotating equipment analysis.
Features
Sensitivity: 10.2 mV/m/s2 (100 mV/g) ±5%
Frequency Response: 10 Hz to 15 kHz or 30 Hz to 10 kHz
Amplitude Range: 490 m/s2 (50 g) peak
Transverse Sensitivity: Less than 5% of axial
Amplitude of Resonant Peak: 20 dB maximum
Hazardous Area Approvals: Includes CSA, ATEX, and IECEx (CN suffix)
Robust Design: IP68 rated for harsh industrial environments
Applications
Turbines: Steam and gas turbine vibration monitoring
Compressors: Centrifugal and axial compressor health
Pumps: High-speed centrifugal pumps
Motors & Generators: Heavy-duty motor applications
Petrochemical Plants: Monitoring equipment in hazardous locations
Mining & Mineral Processing: Conveyor systems, crushers, and grinders
Technical Specifications
Model
330400-02-CN
Sensitivity
10.2 mV/m/s2 (100 mV/g) ±5%
Amplitude Range
490 m/s2 (50 g) peak
Broadband Noise Floor
0.039 m/s2 (0.004 g) rms
Operating Temperature
-55 degC to +121 degC
Power Requirement
-24 Vdc
Mounting
M8 x 1 integral stud
Installation Guidelines
Ensure the mounting surface is flat and clean to maintain accurate high-frequency response.
Always power down the monitoring system before connecting or disconnecting the transducer.
Use shielded cabling to minimize EMI/RFI interference; the system supports cable lengths up to 305 meters (1000 ft).
Verify that the "CN" hazardous area approval matches your local site requirements before installation.
Periodic calibration is recommended to maintain the integrity of the vibration protection system.
FAQ
What is the 330400-02-CN?
The Bently Nevada 330400-02-CN is a 3300 XL series accelerometer designed for critical machinery casing vibration monitoring.
What is the primary use of this transducer?
It is primarily used for monitoring casing vibration in critical rotating machinery such as turbines, compressors, and high-speed pumps, specifically for detecting gear mesh issues.
What are the environmental limits?
The unit is rated IP68 for dust and water resistance and operates within a temperature range of -55 degC to +121 degC (-67 degF to +250 degF).
