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330500 01 04 velomitor piezo velocity sensor-0

3300 Series Sensor System

Home >  Products >  For Bently Nevada >  3300 Series Sensor System

330500-01-04 Velomitor Piezo-velocity Sensor

  • Overview
  • Quick Detail
  • Description
  • Applications
  • Specifications
  • Competitive Advantage
  • Recommended Products
Overview

Place of Origin:

USA

Brand Name:

Bently Nevada

Model Number:

330500-01-04

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

Mounting Thread Adaptor Option:

1/2 - 20 UNF

Agency Approval Option:

Multiple approvals (CSA, ATEX)

Unthreaded Length Option :

9.5 mm (0.375 in)

Overall Case Length Option :

64.5 mm (2.5 in)

Case Material:

310L stainless steel

Dimension:

7.7x2.4x2.4cm

Weight:

0.14kg

Description

The 330500-01-04 Velomitor Piezo-velocity Sensor represents the pinnacle of vibration monitoring technology, specifically engineered by Bently Nevada to measure absolute casing vibration. As a high-performance piezoelectric transducer, the 330500-01-04 Velomitor Piezo-velocity Sensor integrates sophisticated solid-state electronics within a rugged housing to provide a reliable velocity signal proportional to the machine's vibration. Unlike traditional moving-coil velocity transducers, the 330500-01-04 Velomitor Piezo-velocity Sensor utilizes piezoelectric crystals, which eliminates mechanical friction and wear, ensuring a significantly longer service life and higher accuracy across a broader frequency range.

This specific 330500-01-04 Velomitor Piezo-velocity Sensor configuration is housed in a 316L stainless steel casing, offering elite protection against corrosive chemicals and moisture. It features a 1/2 - 20 UNF mounting thread adaptor, which facilitates secure attachment to bearing housings, motor frames, and pump casings. With an overall case length of 64.5 mm and a specialized 9.5 mm unthreaded length, the 330500-01-04 Velomitor Piezo-velocity Sensor is optimized for stability in high-frequency monitoring scenarios. The sensor's design allows for omnidirectional installation, meaning the 330500-01-04 Velomitor Piezo-velocity Sensor can be mounted at any angle—vertically, horizontally, or inverted—without compromising signal integrity.

Applications

The 330500-01-04 Velomitor Piezo-velocity Sensor is primarily used for the continuous vibration monitoring of bearing housings on large-scale rotating equipment. Its ability to measure absolute velocity makes it ideal for tracking the health of steam turbines, centrifugal compressors, and multi-stage pumps. By detecting subtle changes in vibration amplitude, it allows plant operators to identify mechanical issues such as shaft unbalance or resonance before they escalate into costly equipment failures.

This sensor is exceptionally well-suited for harsh industrial environments, including offshore oil platforms and chemical processing plants. Thanks to its 316L stainless steel construction and wide operating temperature range of -50°C to 122°C, the 330500-01-04 Velomitor Piezo-velocity Sensor can be installed directly on machinery exposed to saltwater spray, corrosive fumes, or extreme ambient temperatures. Its solid-state design ensures that the sensor remains maintenance-free even when subjected to the constant high-frequency vibrations typical of gas turbines and high-speed gearboxes.

In safety-critical applications, the 330500-01-04 Velomitor Piezo-velocity Sensor serves as a vital component for machinery protection systems in hazardous zones. With its CSA and ATEX approvals, it is frequently integrated into the protection loops of motors, fans, and cooling tower pumps located in explosive atmospheres. The 1/2 - 20 UNF mounting thread provides a robust mechanical connection, ensuring that the sensor captures accurate data for overspeed protection and automated shutdown protocols in petrochemical refineries and gas processing facilities.

Specifications

Operating Temperature Range:

-50°C to 122°C(-67°F to 250°F)

Sensitivity:

3.96 mV/mm/s (100mV/in/s) ±5%.

Temperature Sensitivity:

-14% to +7.6% typical over the operating temperature range.

Velocity Range:

1265 mm/s (50 in/s) peak

Amplitude Linearity:

±2% to 155 mm/s (6 in/s) peak.

Dynamic Output Impedance:

Less than 2350

Competitive Advantage

Ruggedized 316L Stainless Steel Construction: Unlike many competitors that use standard steel or aluminum housings, the 330500-01-04 Velomitor Piezo-velocity Sensor is encased in 316L stainless steel. This provides superior resistance to pitting, crevice corrosion, and chemical attacks, making it ideal for the most aggressive industrial environments. Its durable build ensures a service life that often doubles that of traditional sensors in corrosive settings.

Advanced Solid-State Reliability: The piezoelectric design of the 330500-01-04 eliminates the internal moving parts found in electromagnetic velocity sensors. This solid-state architecture means there is no mechanical wear or friction-induced signal degradation over time. Consequently, the sensor maintains its 3.96 mV/mm/s sensitivity and ±2% amplitude linearity throughout its lifespan, resulting in fewer false alarms and more accurate predictive diagnostics.

Global Safety Certifications for Hazardous Areas: Equipped with both CSA and ATEX approvals, the 330500-01-04 Velomitor Piezo-velocity Sensor is globally recognized as safe for use in explosive environments. This "out-of-the-box" compliance simplifies the procurement process for international engineering projects and ensures that the sensor meets the highest safety standards for the oil, gas, and mining industries.

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