Product Overview
Wilcoxon Research provides a wide range of vibration monitoring solutions, including accelerometers and signal conditioners, with over 40 years of experience. Their products include standard and custom accelerometers, suitable for various applications.
Product Specifications
The document details specifications for different sensors, including general-purpose, low and high-frequency accelerometers, piezovelocity transducers, and triaxial accelerometers, designed for specific needs like high-temperature or underwater environments.
Technical NotesTechnical notes assist users in understanding
accelerometer specifications and selecting the right sensor. Topics include sensor selection guides, device parameters for intrinsically safe sensors, and FAQs about the Intelligent Transmitter Series.
New Products
New products include the 780A compact vibration sensor and the 787F side exit accelerometer, designed for harsh environments and confined spaces, ideal for condition monitoring and predictive maintenance.
Accessories
Accessories such as magnet bases for accelerometers and ultra-durable cable assemblies enhance the functionality and reliability of vibration monitoring systems.
Industry Applications
Wilcoxon’s products are used in industries like pulp & paper, machine tool, power generation, petrochemical, aerospace, defense, and maritime applications.
4-20 mA Process Control Products
The LPS™ and Intelligent Transmitter Series offer 4-20 mA output signals for process control, enabling real-time machinery health monitoring.
Company Background
Founded in 1960 and acquired by Meggitt PLC in 2004, Wilcoxon Research is a leader in vibration sensor technology and manufacturing excellence.
iT501 Communication Module
This module interfaces with iT Transmitter modules for 4-20 mA signal and power, supporting RS232 transmission of vibration data to PCs.
VibeLink® Software
VibeLink® records data and calibration information, provides trend displays, and allows module labeling for easy reference.
Sensor Networks
Wilcoxon offers cables, mounting accessories, power supplies, and boxes to create comprehensive sensor networks.
Sensor Solution Kit
This kit includes accelerometers, cable assemblies, a termination box, mounting tools, and epoxy, providing a complete solution at a discounted price.
PVM 100 Portable Vibration Meter
A compact device for measuring vibration, with features for switching between acceleration, velocity, and displacement.
Cables and Connectors
Wilcoxon offers a variety of cables and connectors, including custom options, with features like high-temperature ratings and environmental resistance.
MaxFlex® Cables
Designed for harsh environments, these cables are compatible with major data collectors and feature reinforced joints for durability.
Mounting Accessories
Various mounting options ensure optimal sensor contact with machine surfaces for accurate vibration measurement.
Network Connections
Wilcoxon provides terminal and junction boxes to simplify data collection by making multiple channels available at one source.
Sensor Selection Guide
The guide includes detailed specifications for various accelerometers, highlighting their sensitivity, frequency response, and environmental capabilities.
Contact Information
For more information, customers are encouraged to contact Wilcoxon’s sales and service team.
Model 788A Specifications
Includes dynamic, electrical, environmental, and physical specifications, such as sensitivity of 100 mV/g and operating temperature range from -50 to 120°C.
Model 784A SpecificationsSimilar to 788A with slight variations in frequency response and
connector type.
Model 785A Specifications
Features a sensitivity of 100 mV/g and an acceleration range of 80 g peak.
Model 786F Specifications
Focuses on integral cable design with similar specifications to other models.
Common Features
All models feature corrosion resistance, hermetic sealing, ground isolation, ESD protection, and reverse wiring protection.
Model 799LF Specifications
Low frequency, filtered accelerometer with a sensitivity of 500 mV/g and a frequency response of 0.3 - 1,200 Hz.
Model 799M Specifications
High sensitivity, filtered accelerometer with similar specifications to 799LF but optimized for a 15V supply.
Model 712F Specifications
High frequency, integral cable accelerometer with a sensitivity of 100 mV/g and a frequency response of 9.0 - 15,000 Hz.
General Notes
All models feature hermetic sealing, ESD protection, and reverse wiring protection. Specifications may change due to ongoing research and development.
Model 732A/732AT Specifications
High frequency accelerometer with a sensitivity of 10 mV/g and a frequency response of 2.0 - 15,000 Hz.
Model 736/736T Specifications
Similar to 732A/732AT with a sensitivity of 100 mV/g.
Model 997 Series Specifications
High sensitivity accelerometer with a frequency response of 1.5 - 20,000 Hz.
Model 793V Series Specifications
Piezoelectric velocity transducer with a sensitivity of 100 mV/in/sec.
General Features
All models are designed for high sensitivity and frequency range, compact construction, and include features such as corrosion resistance and hermetic sealing.
Model 797V Specifications
Low profile, IsoRing® piezovelocity transducer with a sensitivity of 100 mV/in/sec.
Model 793VR Specifications
Radiation resistant piezoelectric velocity transducer with similar specifications to 797V.
Model 993A Specifications
General purpose triaxial accelerometer with a sensitivity of 100 mV/g.
General Notes
Emphasizes ruggedness, corrosion resistance, and versatility of sensors, with options for intrinsic safety certifications.
FireFET® Model 797-6 Specifications
Includes frequency response, temperature response, electrical requirements, and environmental limits.
PC420 Series Specifications
Details for specific models like PC420A and PC420V Series, designed for acceleration and velocity measurement.
Accessories and Additional Information
Includes mounting studs and calibration data, with specifications subject to change due to ongoing research and development.
PC421 and PC423 Series Specifications
Designed for continuous monitoring of machine vibration, offering outputs in 4-20 mA proportional to vibration levels.
Features
Includes peak equivalent, true RMS, or true peak outputs, with optional dynamic signal output for spectral vibration measurements.
Model Variants
Various models with options for dynamic acceleration or velocity outputs.
Installation and Wiring
Emphasizes the importance of shielded cables and proper grounding practices.
PC425 and PC427 Series Specifications
Includes vibration and temperature measurement capabilities, with detailed electrical and environmental characteristics.
Features and Benefits
Offers peak equivalent, true RMS, or true peak output options, along with temperature signal output.
Model Number Selection
Provides a detailed guide for selecting models based on dynamic output and full-scale ranges.
Wiring and Installation
Includes detailed wiring diagrams for connecting sensors to power supplies and signal measuring circuitry.
Model 793T-3 Specifications
Features acceleration and temperature sensing, rugged design, and hermetic seal.
Model 797T-1 Specifications
Similar to 793T-3 with additional mounting flexibility.
Model 797LT Specifications
Designed for low-frequency applications with higher sensitivity.
Model 786T Specifications
General-purpose model with similar protective features.
General Notes
All models are equipped with a 3-pin MIL-C-5015 style connector and supplied with specific accessories and calibration data.
Model 728A/728T Specifications
Includes dynamic, electrical, environmental, and physical specifications.
Model 731A Specifications
Features a sensitivity of 10 V/g with a frequency response from 0.05 Hz to 500 Hz.
Model 731-207 Specifications
Offers a frequency response from 0.2 Hz to 1,300 Hz.
Features and Accessories
Includes high sensitivity, low noise, and temperature compensation.
General Notes
Emphasizes the right to amend specifications without notice.
Model 746 Specifications
Underwater accelerometer with high sensitivity and wide frequency range.
Model 754 Specifications
Miniature underwater accelerometer with adhesive mounting.
Model 757 Specifications
Biaxial underwater accelerometer with bi-axial measurements.
Model H505L-2-XXX Specifications
General purpose hydrophone with specific output sensitivity and frequency response.
General Notes
Emphasizes the importance of using appropriate power sources to minimize signal distortion.
H505L Hydrophone Specifications
Designed for general-purpose underwater acoustic measurements with low noise and rugged construction.
H507A Hydrophone Specifications
Ultra low noise, wide band hydrophone with a frequency range of 10 Hz to 100 kHz.
Model 991D Accelerometer Specifications
Internally amplified accelerometer for helicopter applications.
Model 991D-1 Accelerometer Specifications
Similar to 991D model but with a higher acceleration range.
Model 991V Velocity Sensor Specifications
Internally amplified velocity sensor with specific frequency response.
General Notes
Wilcoxon Research reserves the right to amend specifications without notice.
Model 992-1 Specifications
Single-axis accelerometer with specific dynamic, electrical, environmental, and physical specifications.
iT Series Specifications
Includes input and output specifications, environmental characteristics, and physical design.
Features and Benefits
Includes low noise and safety wire hole for the Model 992-1.
Ordering Information
Includes a detailed matrix for ordering different models based on input type and sensor sensitivity.
iT401 Alarm Module Specifications
Operates at a nominal 24 VDC with specific features and benefits.
Accessories
Includes supplied and optional accessories for the iT401 module.
Benefits
Eliminates the need for external wiring connections and provides high voltage isolation.
Features
Supports TBUS connection and offers external alarm contacts.
Communication
Uses RS232 serial communication for remote data availability.
Vibration Monitoring
Crucial for reducing operating costs and preventing machinery failure.
Sensor Selection
Consider factors like vibration level, frequency range, temperature, and environmental conditions.
Primary Sensor Considerations
Evaluated based on sensitivity and frequency range, with a balance necessary for optimal performance.
Sensitivity Range
Industrial accelerometers have sensitivities ranging from 10 to 100 mV/g.
Frequency Range
Selection is based on application requirements, often determined by existing vibration data or testing.
Environmental Considerations
Sensors must withstand temperature extremes, humidity, and hazardous environments.
Electrical Powering Requirements
Most sensors require a constant current DC power source.
High Temperature Sensors
Available for applications up to 1400ºF, with specific requirements for charge mode sensors.
Triaxial Sensors and Handprobes
Provide multi-directional monitoring and are easier to mount than single-axis sensors.
Summary
Proper selection and installation of vibration sensors are crucial for reliable data.
Technical Assistance
Contact Wilcoxon’s Product Manager or customer service for assistance.
Electrical Connection and Cable Requirements
Outlines options for electrical connections and cable types for sensors.
Mounting Requirements
Different mounting types are available, including detachable stud and adhesive.
Accelerometer Specifications
Includes dynamic, electrical, and mechanical specifications.
Technical Assistance and Customer Service
Contact information for technical assistance and customer service is provided.
Industrial Vibration Sensor SelectionDiscusses the advantages of piezovelocity transducers over traditional velocity pickups and
piezoelectric accelerometers.
Electrodynamic Pickups
Generate voltage proportional to velocity through the relative motion of a magnet and coil.
Piezoelectric Accelerometers
Use piezoceramic materials to generate an electric charge in response to vibratory acceleration.
Piezovelocity Transducers (PVTs)
Offer advantages over traditional pickups and accelerometers, including better noise filtering.
High Frequency Noise Attenuation
Accelerometers are sensitive to high-frequency vibrations, which can cause distortion.
Intrinsically Safe Systems
Sensors must be used with compatible safety barriers for hazardous areas.
Conclusion
PVTs provide significant advantages in industrial applications due to their robust construction and noise filtering capabilities.
Specifications Overview
Details various models of vibration transducers and sensors with their electrical specifications.
Model Specifications
Includes models like 766E, 793E, and others with specific voltage and current ratings.
Compatible Devices
Mentions compatible barrier devices for use with dynamic sensors.
Introduction to 4-20 mA Transducers
Allows direct input of vibration data to PLCs or DCS for predictive maintenance.
Predictive Maintenance and Vibration Monitoring
Crucial for reducing downtime and saving costs.
Selection Considerations
Velocity is the primary measurement for machinery vibration.
ISO 10816 Guidance
Helps determine vibration limits and transducer selection.
Evaluation Zones
Machines are assessed in zones A to D based on vibration levels.
Output Types
Wilcoxon transducers offer peak, RMS, or true peak output.
Overview of iT Transmitter and Related Modules
Customizable models designed for vibration monitoring and process control systems.
Applications
Suitable for industrial, commercial, and municipal facilities.
Customization and Monitoring Options
Allows for custom vibration monitoring setups with various output options.
Measurement Capabilities
Measures acceleration, velocity, or displacement with different output options.
Technical Features
Includes custom frequency band and sensor sharing capabilities.
iT Alarm and Communication Module
Features programmable relays and digital display for monitoring.
Additional Considerations
Necessary for applications requiring wide frequency response or specific frequency spectrum monitoring.
Introduction
Wilcoxon Research offers solutions for industrial and defense applications with a focus on quality and reliability.
iT Series Overview
Used for vibration monitoring with flexibility for simplified monitoring and detailed spectrum analysis.
Certifications and Accessories
Includes CSA certification and various accessories for setup.
Power Requirements
Operates at 12VDC for battery applications with specific limitations.
Product Range
Includes general-purpose, high-performance, and specialty accelerometers.
General Purpose Accelerometers
Used for vibration measurements across a broad frequency range.
High Performance Accelerometers
Includes high-temperature, low-frequency, and high-frequency models.
Specialty Accelerometers
Designed for specific applications with high sensitivity and low noise.
Conclusion
Wilcoxon provides industry-leading sensors with a focus on quality and reliability.
Overview of Connector Series and Tool Kits
Provides custom cable assemblies and tool kits for field assembly of connectors.
Tools and Components
Includes various tools and components essential for assembling and maintaining connectors.
Cable and Connector Selection
Accelerometer cables can run up to 100 feet without significant signal loss.
Avoiding Ground Loops
Proper shielding and grounding are crucial to prevent ground loops.
IP Ratings
Connectors are rated for ingress protection to indicate resistance to environmental factors.
Maximum Cable Length vs. Frequency and Supply Current
Chart provided to determine maximum cable length based on frequency and supply current.
Cable Descriptions and Temperature Ranges
Lists various cables with descriptions, temperature ranges, and capacitance values.
Connector Descriptions
Details on electrical isolation and contact between shield and transducer housing.
Conclusion
Wilcoxon offers a wide range of cables and connectors suitable for different applications.