Bently Nevada

Bently Nevada 330500-04-04 Velomitor Piezo-velocity Sensor

SKU 330500-04-04

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Bently Nevada

  • Product No.: 330500-04-04

  • Country of origin:United States

  • Product Type: Velomitor Piezo-velocity Sensor

  • Barcode: 8537101190

  • Payment: T/T, Western Union

  • Weight: 142g

  • Dimensions: 25 mm x 25 mm x 63 mm (H x W x D)

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

330500-04-04 Velomitor Piezo-velocity Sensor is a specialized piezoelectric accelerometer designed for measuring absolute casing, bearing housing, and structural vibration. This configuration features a 1/4-20 UNC mounting thread adapter (Option 04) and is rated for multiple hazardous area approvals (Option 04: CSA, ATEX), allowing for versatile installation in demanding industrial environments.

The 330500 incorporates solid-state piezoelectric technology with embedded integrated electronics. With no moving parts, the sensor is resistant to mechanical wear and can be mounted in any orientation—vertical, horizontal, or angled. It is a critical component for machinery protection systems where continuous transmission of casing vibration is required to monitor for malfunctions such as unbalance or misalignment.

Features

  • 1/4-20 UNC mounting thread adapter (Option 04)
  • CSA and ATEX hazardous area approvals (Option 04)
  • Solid-state piezoelectric design with no moving parts
  • Hermetically-sealed 316L stainless steel housing
  • 2-pin MIL-C-5015 connector interface
  • Compatible with standard Bently Nevada monitoring systems

Applications

  • Absolute (relative to free space) bearing housing vibration monitoring
  • Casing vibration measurement for industrial rotating machinery
  • Structural vibration analysis in petrochemical and power generation facilities
  • General purpose velocity measurement for machine protection

Ordering Information

Option Code on This SKU Description
Orderable Part Number 330500-04-04 Velomitor Piezo-velocity Sensor
A - Mounting Thread Adapter 04 1/4-20 UNC
B - Agency Approval 04 Multiple approvals (CSA, ATEX)

Technical Specifications

Parameter Specification
Sensitivity 3.94 mV/mm/s (100 mV/in/s) +/- 5%
Frequency Response 4.5 Hz to 5 kHz (+/- 3.0 dB)
Velocity Range 1270 mm/s (50 in/s) peak
Amplitude Linearity +/- 2% to 152 mm/s (6 in/s) peak
Output Bias Voltage -12 +/- 3.0 VDC
Operating Temperature -55 degC to 121 degC
Case Material 316L stainless steel
Connector 2-pin MIL-C-5015
Mounting Torque 32-46 kg cm (24-40 in-lb)
Weight 0.142 kg
Dimensions 25.3 mm diameter x 63.2 mm height

Installation Guidelines

Ensure the sensor is installed directly on the bearing housing or machine casing. Improper installation, such as loose mounting or poor surface contact, may decrease amplitude and frequency response or generate false signals. Use the provided 1/4-20 UNC mounting adapter and adhere to the specified mounting torque of 32-46 kg cm. Always consult the 330500 user manual for hazardous area installation instructions corresponding to the selected approval rating.

Compliance and Certifications

  • CSA / NRTL / C
  • ATEX Directive 2014/34/EU
  • EMC Directive 2014/30/EU
  • RoHS Directive 2011/65/EU
  • ABS Marine Vessels / Mobile Offshore Units

FAQ

What does the 04-04 configuration signify?

The first 04 refers to the 1/4-20 UNC mounting thread adapter, and the second 04 indicates the sensor is rated for multiple agency approvals, specifically CSA and ATEX.

Can the 330500 sensor be mounted horizontally?

Yes, because the 330500 utilizes solid-state piezoelectric technology with no moving parts, it can be mounted in any orientation including horizontal, vertical, or angled.

Is this sensor compatible with my existing monitoring system?

The 330500 provides a standard 100 mV/in/s output and is designed for compatibility with standard Bently Nevada vibration monitoring systems. Please check your specific monitor's input requirements.

What is the operating temperature range?

The operating temperature range for the 330500 sensor is -55 degC to 121 degC.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Technical Datasheet

Bently Nevada 330500-04-04 Velomitor Piezo-velocity Sensor

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Shipping & Returns

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  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
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Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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