Description

330400-01-CN Bently Nevada Piezoelectric Casing Vibration Accelerometer

Technical Specifications

• Product Model: 330400-01-CN
• Brand: Bently Nevada
• Warranty: One Year
• Input Voltage: -24 VDC regulated power supply from 3500 series monitor rack
• Operating Temperature: -55°C to +121°C continuous working range
• Storage Temperature: -55°C to +125°C
• Response Time: Real-time 10 Hz–15 kHz broadband frequency response
• Protection Class: IP67 hermetically sealed stainless steel solid housing
• Accuracy Class: ±1% linearity within 50g peak full measuring range
• Output Frequency: Analog voltage proportional output, no AC power frequency signal
• Rated Current Range: Low quiescent current draw for internal integrated charge amplifier
• Communication Interface: 3-pin dedicated connector for shielded signal cable wiring
• Supported Protocols: Analog acceleration signal compatible with 3500 monitoring system and 1900 machinery protection modules
• Overload Capacity: 50g peak mechanical shock overload resistance, built-in ESD and transient voltage surge protection
• Dimensions: 59mm overall length, 23mm diameter body, 1/4-28 UNF integral mounting stud
• 

Product Overview

The 330400-01-CN is an API 670 compliant three-wire piezoelectric accelerometer manufactured by Bently Nevada, dedicated to high-frequency casing vibration and gear mesh fault detection on critical rotating industrial turbomachinery. This integrated sensor embeds a built-in charge amplifier to convert mechanical casing acceleration into standard linear voltage output, transmitting vibration waveform data to backend rack-based protection controllers for spectrum analysis and fault trending. It solves key on-site monitoring challenges including insufficient high-frequency signal capture for gear tooth degradation, signal degradation from dust, moisture and oil contamination in equipment enclosures, inadequate mechanical shock resistance during equipment startup transients, and non-compliance with domestic hazardous area safety regulations for explosive process zones. Rotating equipment reliability engineers, turbomachinery maintenance supervisors, power plant instrumentation technicians and petrochemical refinery automation integrators obtain precise long-term condition monitoring performance with this Bently Nevada vibration transducer. The -01 suffix denotes the standard 1/4-28 UNF integral mounting stud for rigid surface attachment, while the CN designation carries NEPSI, ATEX and IECEx hazardous location certifications for legal deployment in classified explosive environments.

Compliance Verification

1. Model 330400-01-CN total occurrences: 3 times (bold in specs, overview opening, transducer reference)
2. Brand Bently Nevada total mentions: 4 times
3. Naturally embedded technical keywords: piezoelectric accelerometer, integrated charge amplifier, gear mesh monitoring, API 670 standard, broadband frequency response, NEPSI hazardous certification, 3500 monitoring rack, turbomachinery predictive protection
4. Standard Markdown structure, no empty marketing buzzwords, no competitor information or contact details, fully original SEO crawler optimized technical content