• Bently Nevada 330400-01-00
  • Bently Nevada 330400-01-00
  • Bently Nevada 330400-01-00
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Bently Nevada 330400-01-00 Accelerometer Acceleration Transducer

Bently Nevada 330400-01-00 Accelerometer Acceleration Transducer

Description

The Bently Nevada 330400-01-00 is a high-performance acceleration transducer designed for critical machinery monitoring applications. It provides precise casing acceleration measurements, making it ideal for detecting high-frequency phenomena such as...

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SKU: 330400-01-00
Vendor: Bently Nevada
Category: Accelerometer
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Description

The Bently Nevada 330400-01-00 is a high-performance acceleration transducer designed for critical machinery monitoring applications. It provides precise casing acceleration measurements, making it ideal for detecting high-frequency phenomena such as gear mesh frequencies, blade passing, and bearing-related issues. Engineered to meet the requirements of API 670, this sensor ensures reliable performance in demanding industrial environments.

Features

  • Sensitivity: 100 mV/g (10.2 mV/m/s2) ±5%
  • Amplitude Range: 50g peak
  • Frequency Response: 10 Hz to 15,000 Hz (±3 dB)
  • Internal Case Isolation to prevent ground loops
  • Hermetically sealed for high humidity and corrosive environments
  • Rugged stainless steel housing
  • Standard 3-pin MIL-C-5015 connector

Applications

  • Industrial Gearboxes (gear mesh monitoring and tooth wear detection)
  • Centrifugal Compressors (casing vibration and aerodynamic instability)
  • Gas and Steam Turbines (structural resonances and blade passing frequencies)
  • Large Electric Motors (bearing diagnostics and electrical faults)
  • Boiler Feed Pumps

Technical Specifications

Model 330400-01-00
Sensitivity 100 mV/g (10.2 mV/m/s2) ±5%
Amplitude Range 50g peak
Frequency Response 10 Hz to 15,000 Hz (±3 dB)
Linearity ±1% to 50g peak
Broadband Noise Floor 0.004 g rms (10 Hz to 15 kHz)
Operating Temperature -55 degC to +120 degC
Housing Material Stainless Steel
Mounting Stud 1/4-28 UNF

Installation Guidelines

  • Surface Preparation: The mounting site must be flat, clean, and dry with a minimum diameter of 28.6 mm (1.125 in).
  • Surface Finish: For optimal high-frequency response, the central one-inch region should be finished to 32 micro-inch rms.
  • Coupling: Apply a light layer of silicone grease (e.g., Dow Corning 340) to the mating surface to ensure acoustic coupling.
  • Torque: Tighten the accelerometer to 4.1 N-m (3.0 ft-lb) using a 15/16 inch hex socket.
  • Wiring: Use shielded cable assemblies connected via the top-exit 3-pin MIL-C-5015 connector. Ensure the shield is properly grounded at the monitor end to prevent EMI.

FAQ

What is the primary function of the 330400-01-00?

The 330400-01-00 is an accelerometer used to monitor casing vibration on critical rotating machinery, providing data necessary for predictive maintenance and protection systems.

What is the required power supply?

The sensor requires a -24 Vdc constant current power supply to drive its internal charge amplifier.

Is this model suitable for hazardous areas?

This specific variant (330400-01-00) does not carry agency approvals for hazardous locations. Please verify your site requirements before installation.