330425-02-05 Acceleration Transducers

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	330425-02-05
Minimum Order Quantity:	1
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 330425-02-05 Acceleration Transducers represent a specialized evolution in piezoelectric sensing technology, specifically engineered for high-amplitude casing vibration analysis. As a primary component of the 330425 Acceleration Transducers portfolio, this model is meticulously designed for critical machinery applications where standard sensors might saturate. While the 330400 series is built for general API 670 compliance with a 50 g peak range, the 330425 Acceleration Transducers offer an enhanced performance envelope. The 330425 Acceleration Transducers provide a significantly larger amplitude range of 75 g peak, paired with a tailored sensitivity of 25 mV/g. This specific configuration makes the 330425 Acceleration Transducers the definitive choice for monitoring high-energy events such as gear mesh frequencies, aerodynamic instability in high-speed compressors, and rolling element bearing faults in heavy-duty industrial rotating equipment.

The technical architecture of the 330725-02-05 330425 Acceleration Transducers focuses on durability and signal precision. By utilizing a 25 mV/g scale factor, the 330425 Acceleration Transducers prevent signal clipping during intense mechanical shocks, a common issue in reciprocating machinery and complex gearboxes. Furthermore, the 330425 Acceleration Transducers feature a robust 316L stainless steel housing that is hermetically sealed to withstand corrosive petrochemical environments. When integrating 330425 Acceleration Transducers into a plant-wide monitoring strategy, the 1/4-28 UNF mounting thread ensures a rigid mechanical coupling, which is vital for accurately capturing high-frequency vibration data above 10 kHz.

Applications

1.High-Energy Gearbox and Gear Mesh Monitoring

The primary application for the 330425-02-05 is monitoring gear mesh frequencies in heavy-duty industrial gearboxes. Due to its tailored 25 mV/g sensitivity and an expanded 75 g peak acceleration range, it can capture the high-frequency vibrations associated with gear tooth engagement without signal clipping. This allows for early detection of gear pitting, cracking, or misalignment in high-load drive trains used in cooling towers, mills, and conveyor systems.

2.Rolling Element Bearing (REB) Diagnostics

This transducer is essential for detecting the high-frequency "ringing" or impacts caused by defects in rolling element bearings. It monitors the bearing housing for the early-stage ultrasonic stress waves generated by fatigue or lubrication failure. Its wide frequency span of 10 Hz to 15 kHz ensures that both fundamental rotational issues and high-frequency bearing resonant frequencies are captured for advanced spectral analysis.

3.Aerodynamic Instability and Blade Pass Monitoring

In centrifugal compressors and high-speed fans, the 330425-02-05 is applied to detect aerodynamic phenomena such as surge or blade pass frequencies. The sensor's ability to handle 75 g peak overall acceleration makes it suitable for monitoring the casing of high-pressure turbomachinery, where fluid-induced forces can create significant high-frequency vibration that would saturate lower-range 100 mV/g sensors.

4.Reciprocating Machinery and Impact Monitoring

The exceptional Shock Survivability of 5,000 g peak and the robust 316L stainless steel construction make this sensor ideal for reciprocating compressors and engines. It is used to monitor mechanical looseness, valve impacts, and piston slap. The M8 x 1 integral stud provides a rigid mechanical coupling required to accurately transmit these sharp, impulsive shock events from the machine frame to the internal piezoelectric element.

Specifications

Competitive Advantage

1.Exceptional Mechanical Durability and Shock Resistance

This transducer is built to survive extreme mechanical abuse, boasting a shock survivability rating of 5,000 g peak. This level of ruggedness is far superior to general-purpose sensors, making it the ideal choice for reciprocating machinery where high-impact "knocking" or valve seating events are common. The 316L stainless steel housing is hermetically sealed to prevent the ingress of moisture and corrosive industrial chemicals, ensuring a long service life in the harshest environments.

2.Precision High-Frequency Response (up to 15 kHz)

The 330425-02-05 offers a wide frequency span from 10 Hz to 15 kHz, combined with a rigorous ±1% amplitude linearity. This precision allows the sensor to be used for advanced predictive maintenance techniques, such as enveloping and spectral analysis. By maintaining linearity up to its full 75 g range, it provides maintenance teams with highly reliable data for identifying early-stage rolling element bearing defects and gear teeth pitting before they lead to catastrophic failure.

3.Integrated M8 Stud for Optimal Signal Coupling

Unlike sensors that rely on mounting adapters, this configuration features an M8 X 1 integral stud. An integral stud provides a more rigid mechanical path for vibration transmission compared to multi-part mounting hardware. This direct coupling is critical for high-frequency monitoring, as it prevents the resonance damping that can occur at high frequencies, ensuring that the signal reaching the internal piezoelectric element is an exact representation of the casing vibration.