Wilcoxon - manufacturer of reliable, high-quality vibration monitoring products

Maritex would like to inform you about expanding our portfolio with high-quality vibration monitoring products from Wilcoxon Sensing Technologies

Wilcoxon Sensing Technologies has a strong history of providing market-leading products for demanding industrial, marine, and defense applications. Since 1960, Wilcoxon has been and continues to be a worldleading manufacturer and supplier of high-quality vibration monitoring products known for their reliability, long life, and excellent value. As an ISO 9001:2015 certified company, They are committed to setting the industry standard for quality of design, manufacture, assembly, and distribution of vibration sensors, underwater acoustic sensors, and related equipment.

In 2017, the Wilcoxon brand was purchased by the Amphenol Corporation, one of the largest manufacturers of interconnect products in the world. Wilcoxon has been integrated into the Amphenol Sensor Technology Group.

COMPLETE VIBRATION MONITORING SOLUTIONS

A machine’s vibration levels indicate its condition. Developing faults appear as changes in vibration, often before other signs are noticeable, and specific machine problems show particular patterns of changing vibration levels, making fault identification easier and more accurate.

If you know which machines need maintenance, what the problems are, and how soon to address them, your predictive or preventative maintenance program is more effective and operations are more efficient.

How to incorporate vibration data into your monitoring setup will depend on your program’s needs, but there are two basic approaches: permanent installations or walkaround monitoring.

A permanent installation provides reliable data and simplifies access to machine information.

Benefits include:

• remote access from the measurement point
• access to multiple readings in central location
• reduces measurement time
• full frequency range of the sensor is available
• improved safety
• continuous monitoring of changing vibration

Some drawbacks:

• higher cost for dedicated sensors, cabling, and mounting hardware
• lacks flexibility to check different measurement points

Walkaround routes allow flexibility and are often used with fewer measurement points.

Benefits include:

• lower cost alternative to installing dedicated sensors at each measurement point
• offers flexibility in checking different measurement points
• useful for establishing baselines prior to permanently mounting sensors

Some drawbacks:

• poor repeatability of readings
• limitation in frequency range
• safety risks to personnel from moving parts or unsafe conditions

APPLICATIONS

With the high number of rotating machines found in pulp and paper manufacturing facilities, there’s a huge potential benefit to vibration monitoring. High temperature accelerometers with reliable performance up to 150°C are ideal for use on rotating components in dryer sections, and rugged IP68 rated connectors and cables have the chemical and heat resistance needed throughout the plant.

With the variety of hazardous locations found throughout refineries and the high cost of unscheduled downtime, vibration sensors with Class I certifications are a good investment. Wilcoxon offers intrinsically safe sensors for dynamic data and explosion-proof sensors for 24/7 trend data to fulfill the complex requirements of refineries.

Class I, Div 1 (Zone 0/1)	Explosion-proof (EX)	Class I, Div 2 (Zone 2)
786A-IS, 787A-IS intrinsically safe accelerometers PC420-IS certified 4-20 mA sensors IS safety barrier strips	PC420VP-EX explosion-proof	4-20 mA sensors 786A-D2, 786-500-D2, 787A-D2 certified accelerometers R6D2-0-J9T2A cable assemblies

Vibration monitoring plays an essential role in an effective predictive maintenance program. Plants with pumps, motors, fans, or any rotating machines that are critical to operations can benefit from vibration data indicating changes in machine condition or early fault detection. Sensing solutions are available for every application.

786A, 787A	Accelerometers for general machine monitoring on motors, fans, pumps, and gear mesh
R6W-J10	IP67 cable assemblies for permanent installations and flexible cable routing
MAC800 / REF2510R	Handheld meters and vibration reference sources for walkaround monitoring programs
PC420 series	4-20 mA sensors for process applications
Mounting hardware	Studs, adhesives, cementing pads, isolators, and accessories for permanent or temporary installations
VL enclosures	Switchboxes provide a central data collection point to avoid lengthy data-collection routes

Monitoring programs for wind turbines face unique technical challenges, with important slow turning machinery and the potential for high electromagnetic interference. Generators should be monitored with highly isolated sensors and foil shielded cable for improved EMI resistance, while the turbine’s main bearing can be monitored with high sensitivity, low frequency sensors. Gear mesh faults are detectable with general purpose accelerometers.

Generators	High voltage sensors: HV100/HV200 HV100LF/HV200LF J9F foil shielded cable assemblies
Main bearing	Low frequency sensors: 786LF-500, 787-500 HV100LF-500, HV201LF-500
Gearbox	General purpose accelerometers: 780A, 786A, 787A

Chemical processing facilities rely on cooling towers to recycle water and help complete their processes. Vibration measurements on fans, motors, and gearboxes can help identify problems such as misalignment and imbalance before failure causes unexpected downtime.

786LF-500, 797L	Low frequency accelerometers for measurements on slow-turning fan shaft
R6Q-J9T2A, 786F	IP68 rated cable/connector assemblies with high chemical resistance, integral cable sensors
VL enclosures	Switchboxes to provide a central data collection point and shorten active collection time

Sensors, cable assemblies, and mounting accessories with radiation resistance up to 107 RADs make vibration monitoring possible on critical machines in nuclear power plants.

793R, 797R	Radiation resistant accelerometers for gearboxes and high frequency analysis
793VR	Radiation resistant velocity sensors for general machinery analysis
R6QN connectors, J9T2 cables	Neoprene connectors and Tefzel cable (optional stainless steel braid) for chemical resistance and material approvals

Extremely low frequency applications, such as construction zones for tunnels and bridges, earthquake detection and engineering, and structural health monitoring use seismic sensors to detect changes that affect critical infrastructure or indicate seismic activity.

731A/P31	Accelerometer/power amplifier system with 10 V/g sensitivity
731-207	Compact seismic sensor
J9T2A / J9F cable	Low noise, Teflon jacketed cable to protect the signal from electrical interference
799M	Accelerometer with 1 V/g output for high sensitivity and intermediate frequency response

Vibration monitoring is useful at several stages of the cement manufacturing process. Critical fans, motors, and conveyors can be monitored for signs of developing faults with sensing solutions that work in environments with dust, debris, and high temperatures.

PC420V series, 786A, 787A	4-20 mA velocity sensors, standard accelerometers to detect machine imbalance
787A, R6Q-J9T2A	Side exit, hermetically sealed sensors and IP68 rated cable assemblies for contamination protection
HT series, R6Q-J9T2A	High temperature accelerometers and cable assemblies for kiln areas
786A, 787A	Accelerometers to detect belt drive misalignment using dynamic analysis of vibration data
iT300, iT301	Transmitters for field-configurability and connection to plant infrastructure, enabling dynamic analysis

Maximizing operational uptime and efficiency is paramount in mining operations. Establishing baseline vibration levels and continuously trending data from key components helps to detect machine faults early, helping you reduce overall maintenance costs and keep working.

PC420 series, 786A, 787A	Sensors with broad frequency response for detecting gear mesh faults, monitoring geared motors and belts in conveyor drive system, and continuous monitoring of machines running 24/7
R6Q-J9T2A, 786F	IP68 rated cabling and watertight sensors to detect pump corrosion
786A, 786A-I + iT300	High frequency sensors, transmitters for field-configurability and connection to plant infrastructure to detect bearing damage or fatigue

SENSORS
5 things to consider for sensor selection

• Overall vibration level

The vibration level on most machines is unlikely to be high enough to cause sensor overload or require a specialty sensor, but certain faults can produce high vibrations. When choosing a sensor, consider which faults are most likely to develop and which are of interest for the machine along with baseline machine vibration.

• Frequency range of interest

Depending on the size and type of machine, the location where the sensor will be mounted, and the number of components (among other factors), the frequency range being measured can vary. A sensor should be able to capture the appropriate frequencies and output reliable data.

• Acceleration vs. velocity

Accelerometers should be used in most applications on most machinery. Piezovelocity sensors are well-suited for monitoring mid-frequency vibrations on common rotating machines; at very high or low frequencies (above 10 kHz or below 1 Hz), specialty accelerometers are a better choice.

• Temperature range

If operating temperatures won’t exceed 120°C (248°F), most standard accelerometers are a good choice; above that, choose an HT series sensor, which performs well up to 150°C. Sensor response varies more at high temperatures, which can affect measurement accuracy and should be factored into your analysis.

• Environmental considerations

Make sure to measure the ambient temperature, humidity, and moisture levels, determine whether any contaminants such as dust, liquids, debris or corrosive chemicals are present, and check for nearby sources of interference (unusually high EMI, RFI, or ESD). Sensors to be used in hazardous areas should have the correct certification requirements.

The complete range of vibration sensors can be found here

CABLE & CONNECTOR DESIGN

We offers a wide variety of rugged cables and connectors to ensure data reliability. Several of our most popular cable assemblies in standard lengths you can find here , while custom cable assemblies are built to meet your individual requirements.

Connector types
MIL-style	The most common connector used with industrial sensors. Rugged, cost-effective, and available in a variety of boots and sealing methods for use in different environments.
Multi-conductor	Includes LEMO, Bendix, Turck, and M12 style connectors, used on data collectors, multi-axis or dual-output sensors. M12 connectors are common in process applications.
Coaxial	BNC and 10-32 Microdot connectors are 2-pin configurations designed for use with coaxial cables, and reduce the time associated with portable data collection.
Cable types
Schielded, twisted pair	Permanent sensor installations most often use 2-conductor shielded cable because it minimizes electrical noise and for its compatibility with 2-wire sensors.
Multi-conductor shielded	Multi-conductor shielded cable is used with 3-, 4- or 5-wire sensors because it minimizes electrical noise.
Coaxial	Used with BNC connectors and charge output accelerometers, coaxial cable has an inner conductor which carries power and signal, while the shield acts as signal common. Low-noise mineral insulation cable minimizes triboelectric effects.
Shielding
Foil	Shielding made of aluminized mylar with a drain wire for electrical connection. The foil blocks high levels of RF signal, often found in wind turbine nacelles or high-speed turbines.
Braided or spiral	Shielding is provided by a braid made from many strands of small gauge wire, wrapped around the cable conductor(s). Braided shielding is considered more effective at minimizing power line frequencies found around electric motors, and tightly wound braid protects against RFI.
Cable protection
Spiral armored jacket covering	Spiral wrapped solid band of metal surrounding a cable. The armor protects the cable from damage from heavy objects, and improves chemical resistance by isolating the cable from the surrounding atmosphere.
Stainless steel everbraid	Braided electrical shield of stainless steel wrapped along the outside of the cable. The braid protects the cable from sharp objects and can act as an additional signal shield; in submerged applications, it prevents intrusion of foreign objects and does not trap water.
Environmental resistance
Teflon	The cable jacket of choice for most industrial applications due to its chemical and temperature resistance. Teflon can withstand temperatures up to 200°C, is resistant to most chemicals, and is physically strong, extending cable life.
Enviroprene	A lower-cost Teflon alternative used in standard industrial environments. Enviroprene offers good chemical resistance and protects against common exposures such as UV rays.
Tefzel	Radiation resistance and good chemical resistance make Tefzel the best choice for use in nuclear environments.
Polyurethane	Polyurethane is a low-cost, abrasion-resistant material that’s sufficiently durable for use in walkaround routes. It’s often used in underwater applications because it can be bonded to metals, creating a watertight seal to the sensor.

The full range of cables and connectors with technical details can be found here

In case of technical questions feel free to contact us by phone: +48 58 662 05 79 or e-mail: sensor@maritex.com.pl

Source: Wilcoxon Sensing Technologies – https://wilcoxon.com/