Bently Nevada 330400-01-CN 330400 Accelerometer

Description

The 330400-01-CN is an industrial accelerometer designed for critical machinery casing vibration monitoring, featuring a 1/4-28 UNF integral mounting stud (Option 01) and designated with the -CN suffix for Chinese hazardous area compliance (NEPSI/CCC). This transducer delivers a sensitivity of 100 mV/g with a measurement range of 50 g peak, meeting the requirements of API Standard 670 for casing acceleration measurements such as gear mesh monitoring and overall machinery protection.

This unit provides a frequency response of 10 Hz to 15 kHz and is constructed with a 316L stainless steel housing for harsh environments. The 330400 is intended for mounting directly on bearing housings or machine casings; accurate installation is essential to ensure signal integrity and avoid false readings. The -CN suffix indicates the configuration is certified for use in China hazardous areas, adhering to local NEPSI and CCC requirements.

Features

• Sensitivity: 100 mV/g (10.2 mV/m/s2)
• Amplitude Range: 50 g (490 m/s2) peak
• Frequency Response: 10 Hz to 15 kHz
• Mounting Thread: 1/4-28 UNF integral stud (Option 01)
• Housing: 316L stainless steel, hermetically sealed
• Connector: 3-pin MIL-C-5015 receptacle
• Operating Temperature: -55 degC to +121 degC
• Shock Survivability: 5000 g peak

Applications

• Gear mesh monitoring
• Casing vibration measurement
• Critical rotating machinery protection
• General industrial acceleration monitoring

Ordering Information

Technical Specifications

Installation Guidelines

• Install the accelerometer on the machine casing or bearing housing using the integrated stud.
• Ensure the mounting surface is prepared to 32 minch rms.
• Use appropriate mounting torque (4.1 N-m) to prevent base strain sensitivity.
• Wiring should be protected in conduit; use splash boots if required for environmental protection.
• Ensure compliance with local electrical codes for hazardous area installations (-CN suffix).

Compliance and Certifications

• CE compliant
• RoHS Directive 2011/65/EU
• China RoHS (EFUP 15 years)
• NEPSI/CCC (per -CN suffix)
• ABS Marine Vessels compliant