Showing posts with label explosion proof. Show all posts
Showing posts with label explosion proof. Show all posts

Protecting Wireless Infrastructure in Potentially Explosive Environments

Wireless access point enclosure"Built to Blast: Industrial Internet of Things Infrastructure for Hazardous Environments" 

Many chemical, defense, flight line, food processing, fueling, mining, petrochemical, and pharmaceutical applications require high-performance Wi-Fi access in potentially explosive environments. Whether for device telemetry, network access, site-to-site connectivity, or unified communications, these applications require the highest available Wi-Fi performance in the harshest of environments.

Wi-Fi access points can be designed to operate directly in explosive environments without an additional protective enclosure, or they can be designed for use in non-explosive environments and operated inside of an enclosure rated for the application. The former approach is cost-effective when the underlying technology driving the equipment is established, stable, and unlikely to need an upgrade for years; IoT speed, position, pressure, and temperature sensors fall into that category.

The latter approach – using an external enclosure – is the most practical if the underlying wireless technology is changing rapidly. That’s because the cost of purchasing and installing an explosion-proof enclosure can represent from 4 to 20 times the cost of the access point the enclosure is designed to protect. It’s substantially less expensive to swap out the access point, leaving the protective enclosure untouched, than to install a completely new enclosure with every technology upgrade.

In less than ten years the Wi-Fi industry has moved from 802.11n to 802.11ac Wave 1 to 802.11ac Wave 2. Just as no customer would buy a new truck based on a 10 year old design, neither would they consider deploying 802.11n access points based on technology from 2007. At a minimum they would use 802.11ac Wave 1, especially in industrial environments, because of 802.11ac’s outstanding multipath performance in the presence of metal.

Using typical amortization rates a customer that wants to stay abreast of the latest Wi-Fi technology would update equipment roughly once every four years. If we assume that an access point designed for uncontrolled outdoor environments with wide temperature range operation has a List price of $1,500, the associated Class 1 Division 2 enclosure Lists for $3,500, and the installation of just the enclosure (excluding access point set-up and commissioning) costs $2,500, then customers will save $4,500 with every turn of access point technology if the enclosure is retained.

For more information about hazardous area wireless access point enclosures, contact Analynk by calling (614) 755-5091 or visit their website at https://analynk.com.

Hazardous Area Classifications

Hazardous AreaWhen electrical equipment is used in, around, or near an atmosphere that has flammable gases, vapors, or flammable liquids, there is always a possibility or risk that a fire or explosion might occur. Those areas where the possibility or risk of fire or explosion might occur due to an explosive atmosphere and/or mixture is often called a hazardous (or classified) location/area.

Currently there are two systems used to classify these hazardous areas; the Class/Division system and the Zone system. The Class/Division system is used predominately in the United States, whereas the rest of the world generally uses the Zone system.

Class/Division System

Hazardous locations per the Class/Division system are classified according to the Class, Division, and Group.
  1. Class - The Class defines the general nature (or properties) of the hazardous material in the surrounding atmosphere which may or may not be in sufficient quantities.
    • Class I - Locations in which flammable gases or vapors may or may not be in sufficient quantities to produce explosive or ignitable mixtures.
    • Class II - Locations in which combustible dusts (either in suspension, intermittently, or periodically) may or may not be in sufficient quantities to produce explosive or ignitable mixtures.
    • Class III - Locations in which ignitable fibers may or may not be in sufficient quantities to produce explosive or ignitable mixtures.
  2. Division - The Division defines the probability of the hazardous material being able to produce an explosive or ignitable mixture based upon its presence.
    • Division 1 indicates that the hazardous material has a high probability of producing an explosive or ignitable mixture due to it being present continuously, intermittently, or periodically or from the equipment itself under normal operating conditions.
    • Division 2 indicates that the hazardous material has a low probability of producing an explosive or ignitable mixture and is present only during abnormal conditions for a short period of time.
  3. Group - The Group defines the type of hazardous material in the surrounding atmosphere. Groups A, B, C, and Dare for gases (Class I only) while groups E, F, and G are for dusts and flyings (Class II or III).
    • Group A - Atmospheres containing acetylene.
    • Group B - Atmospheres containing a flammable gas, flammable liquid- produced vapor, or combustible liquid- produced vapor. Typical gases include hydrogen, butadiene, ethylene oxide, propylene oxide, and acrolein.
    • Group C - Atmospheres containing a flammable gas, flammable liquid- produced vapor, or combustible liquid- produced vapor. Typical gases include hydrogen sulfide, ethyl either, ethylene, and acetaldehyde.
    • Group D - Atmospheres containing a flammable gas, flammable liquid- produced vapor, or combustible liquid- produced vapor. Typical gases include acetone, ammonia, benzene, butane, ethanol, gasoline, methane, natural gas, naphtha, and propane.

Zone System

Hazardous locations per the Zone system are classified according to its Zone. For gas atmospheres electrical equipment is further divided into Groups and Subgroups.

The Zone defines the probability of the hazardous material (gas), being present in sufficient quantities to produce explosive or ignitable mixtures.
  • Gas
    • Zone 0 - Ignitable concentrations of flammable gases or vapors which are present continuously or for long periods of time.
    • Zone 1 - Ignitable concentrations of flammable gases or vapors which are likely to occur under normal operating conditions.
    • Zone 2 - Ignitable concentrations of flammable gases or vapors which are not likely to occur under normal operating conditions and do so only for a short period of time.
  • Group - Electrical equipment used in gas atmospheres is divided into two groups.
    • Group I - Equipment used in mines with atmospheres containing methane or gases and vapors of equivalent hazard. (Note: Group I does not apply to offshore and is shown for information purposes only).
    • Group II - All other equipment; which is further subdivided into three subgroups.
      • Group IIA - Atmospheres containing propane, or gases and vapors of equivalent hazard.
      • Group IIB - Atmospheres containing ethylene, or gases and vapors of equivalent hazard.
      • Group IIC - Atmospheres containing acetylene or hydrogen, or gases and vapors of equivalent hazard.
Reprinted from The Bureau of Safety and Environmental Enforcement
https://www.bsee.gov

Hazardous Area Wireless Access Point Enclosure for Aruba AP 274

wireless access point enclosure for hazardous area
This version of the AP617 Hazardous Area Wireless Access
Point Enclosure accommodates six explosion proof antennas.
The Aruba AP-274 wireless access point carries a description of it's operating environment range that says "Purpose-built to survive in the harshest outdoor environments, 270 series APs withstand exposure to extreme high and low temperatures, persistent moisture and precipitation, and are fully sealed to keep out airborne contaminants. All electrical interfaces include industrial strength surge protection." While the access point can withstand outdoor environments, maybe even some industrial environments, there is a large class of industrial settings where it is just as important to protect the environment from the device as it is to protect the device from the environment. Hazardous atmospheres require isolation and special housing of electrical gear that have potential to be source of ignition.

Analynk manufactures enclosures for industrial wireless access points, facilitating their installation in hazardous locations. Each access point enclosure is specifically targeted and designed to provide easy installation of specific wireless access points from a range of manufacturers. Every model is provided with UL listed explosion proof antennas, a mounting bracket designed for the target access point, and RF cables to make the antenna connections. Enclosures have penetrations specifically located to accommodate the target access point.The current offering accommodates a range of units from Symbol, Cisco, Meru, Aruba, HP, and Motorola, with more models added regularly to accommodate additional wireless access points.

The website has a newly added data sheet for the AP617, specifically designed for the Aruba AP-274 dual band access point. Analynk Wireless specializes in industrial wireless communications. Your wireless communication challenges are welcome at Analynk, so make contact and share your application requirements. Combining your own knowledge and experience with Analynk's industrial wireless application expertise will produce an effective solution.

The new datasheet for the AP617 is provided below. You can see all the models and their companion access points on the Analynk site.


New Hazardous Area Enclosure for Industrial Wireless Equipment

hazardous location explosion proof enclosure for wireless equipment with antenna
Analynk's WEN-RT enclosure houses industrial wireless
equipment in hazardous locations.
Analynk Wireless has expanded its WEN line of explosion proof enclosures for industrial wireless equipment. The new WEN-RT includes a cast aluminum enclosure and antenna, both suitable for Class 1, Division 1, Groups C&D locations. Purchasers can select from nine different models, each provided with a different antenna to accommodate a target frequency spectrum.

A cable is included to connect the antenna to the housed device, and several options are available to adapt the enclosure to specific applications. A data sheet can be found on the company website. Share your industrial wireless challenges with the experts an Analynk Wireless. Leverage your own knowledge and experience with their expertise to develop effective solutions.

New Wireless Access Point Enclosure For Hazardous Areas

hazardous area wireless access point enclosure
New Model AP622 Access Point Enclosure
Analynk manufactures enclosures for industrial wireless access points, facilitating their installation in hazardous locations. Each access point enclosure is specifically targeted and designed to provide easy installation of specific wireless access points from a range of manufacturers. Every model is provided with UL listed explosion proof antennas, a mounting bracket designed for the target access point, and RF cables to make the antenna connections. Enclosures have penetrations specifically located to accommodate the target access point.The current offering accommodates a range of units from Symbol, Cisco, Meru, Aruba, HP, and Motorola, with more models added regularly to accommodate additional wireless access points.

The newly added AP622 is designed for the Aruba AP-304 dual band access point. Analynk Wireless specializes in industrial wireless communications. Your wireless communication challenges are welcome at Analynk, so make contact and share your application requirements. Combining your process expertise with Analynk's product specialization will produce an effective solution.

The datasheet for the new model is provided below. You can see all the models and their companion access points on the Analynk site.


Wireless Access Points Installed in Hazardous Locations


wireless access point enclosure for hazardous area Analynk
Hazardous area wireless access point enclosure
with explosion proof antennas.
Installing the IT department's chosen wireless access point in an area classified as hazardous due to the potential for ignition of flammable or explosive gases and vapors poses a challenge. While there can be real benefit to maintaining uniformity throughout the wireless network hardware, the gear installed in the office areas cannot be installed in a hazardous area without proper accommodation.

Analynk manufactures rated enclosures for industrial wireless access points, facilitating their installation in hazardous locations. Each access point enclosure is specifically targeted and designed to provide easy installation of specific wireless access points from a range of manufacturers. Every model is provided with UL listed explosion proof antennas, a mounting bracket designed for the target access point, and RF cables to make the antenna connections. Enclosures have penetrations specifically located to accommodate the target access point.The current offering accommodates a range of units from Symbol, Cisco, Meru, Aruba, HP, and Motorola, with more models added regularly to accommodate additional wireless access points.
The newly added AP620 is designed for the Motorola/Zebra AP-7532 Access Point
Analynk Wireless specializes in industrial wireless communications. Your wireless communication challenges are welcome at Analynk, so make contact and share your application requirements. Combining your process expertise with Analynk's product specialization will produce an effective solution.


Analynk's Telmar Brand of Process Control Products

enclosed industrial process controller
Telmar enclosed 2-wire transmitter
Analynk Wireless, in addition to wireless process signal transmitters, receivers, and repeaters, manufactures a broad line of industrial process control products under the Telmar brand.

  • 2-Wire Transmitters with AC, DC, mA, slidewire, RTD, or tachometer inputs. General purpose enclosure is standard, with options for others to meet any rated environment.
  • 4-Wire Transmitters with dozens of combinations of input and output signals. Alarm outputs available as option.
  •  Signal Alarms that accommodate inputs from thermocouple, DC current, DC voltage, RTD, AC voltage, AC current, tachometer, slidewire, or strain gauge.
  • Pneumatic Transmitters for pressure to current, current to pressure, pressure to voltage, and voltage to pressure applications.
  • Tachometer Transmitters
  • Explosion Proof Transmitters with or without local indicator for thermocouple or RTD input.
    • industrial process transmitter RTD with explosion proof enclosure and display
      RTD transmitter with explosion proof enclosure and display
  • Indicators and Meters with general purpose or explosion proof enclosures in loop powered or external powered versions.
  • Sensor Assemblies for general, corrosive, or explosion proof applications. Thermocouple or RTD.
The Telmar brand provides complementary products for wired process control applications, or can be supplemented by Analynk's wireless products to provide wireless connectivity between point of measurement and point of control.

Reach out to Analynk with your process control challenges, combining your process knowledge with their product expertise to develop effective solutions.

Battery Powered Transmitter for Industrial Wireless Communication

battery powered wireless transmitter in explosion proof enclosure for industrial process control
Battery powered wireless process signal transmitter
in explosion proof enclosure
Industrial settings can present difficult or unique challenges to automation and control designers. Each new challenge seems to be met with a new, improved, or adapted product which fulfills the requirements.

Analynk's standard array of wireless transmitters operate on 24 Vdc. For installations without any appropriate power source, three models are configured to operate on power provided by batteries. The A753-BT transmitters operate on battery power, utilizing a real time clock to schedule transmission intervals appropriate for the application. The transmitter also provides an excitation voltage for external devices. Your sensor's 4-20 mA output provides input to the Analynk transmitter, along with two discrete switches. The transmitter communicates with all of Analynk's receivers.

The unit pictured is configured for use in a hazardous area, with explosion proof enclosure. Other models are suitable for DIN rail mounting in an enclosure of your selection, or provided preconfigured in a NEMA 4 enclosure.

Share your wireless process control connectivity challenges with the experts at Analynk.



Analynk Further Expands Line of Hazardous Area Wireless Access Point Enclosures

hazardous area wireless access point enclosure with antennas
New AP608 Explosion Proof Access Point Enclosure
For Meru AP-1020e
Analynk Wireless has added three new entries to their line of wireless access point enclosures for use in hazardous areas. Each enclosure is shipped ready for installation of your access point device, with hazardous area antennas, antenna cables, and custom access point mounting bracket included.

Analynk access point enclosures are preconfigured to house a specific manufacturer and model number access point. Review the entire product offering and see the long list of accommodated access points. If you want to use an access point not shown on the list, contact  Analynk for a solution.

The new models and their matching access point.
The hyperlinks above will open data sheets for the respective units.

Analynk manufactures a diverse array of equipment utilized in establishing wireless connections between industrial process control devices. Share your wireless connectivity challenges with the experts at Analynk and get effective solutions.

Know Analynk Wireless - Introductory Video



Analynk Wireless is an innovative designer and supplier of wireless instrumentation for the process control industry. Instruments and equipment have been successfully implemented in numerous applications including temperature measurements, 4-20 mA bridges, discrete inputs/outputs, pulse inputs, lighting and pump controls. The company's products are used in both hazardous and non-hazardous locations. Analynk Wireless also manufactures a line of traditional wired process measurement and control instrumentation under the brand name Telmar Instruments.

Share your wireless connectivity challenges with the experts at Analynk. Combining your process knowledge with their expertise with produce effective solutions.

Analynk Extends Offering of Hazardous Area Access Point Enclosures

explosion proof enclosure for wireless network access point
AP411 for the Meraki MR72 Wireless Access Point
is Analynk's latest addition to the product line
Analynk Wireless manufactures equipment for transmitting process control signals via WiFi, radio, satellite, and cellular networks. One of their continuously expanding product lines is the Hazalynk series of explosion proof access point enclosures for installing wireless access points in hazardous areas.

The company currently has specific models designed for simple accommodation of wireless access points from Symbol, Cisco, Meru, Meraki, Aruba, HP, and Motorola. Each model is specifically configured to house a particular model wireless access point. Antenna openings, cables, and internal mounting bracket are all coordinated to provide easy installation of the wireless access point. Explosion proof antennas suitable for the access point are included with each enclosure.

The latest addition to the product line is intended for use with the Meraki MR72 Access Point. A data sheet for the unit is included below, or you can contact Analynk for more information about this or any of their other industrial wireless products.



Hazardous Area Wireless Equipment Enclosures Ease the Path to Implementation

hazardous area wireless equipment enclosure with explosion proof antenna
Analynk hazardous area wireless equipment enclosures
are preconfigured for antenna connection.
Extending or establishing wireless connections in hazardous industrial environments presents a unique set of challenges. The equipment must be housed in an enclosure appropriately rated for the environment. Additionally, the antenna must extend outside the hazardous area rated equipment enclosure in order to properly function. The antenna must also carry a suitable rating for the hazardous area and provide an approved mating to the enclosure to preserve the safety integrity of the installation.

Analynk Wireless, innovators in the industrial wireless arena, provide a series of enclosures suitable for Class 1 Division 1 Groups C&D locations, as well as Class 1 Zone 1 applications. The enclosures are preconfigured to accommodate Analynk's hazardous area antenna, which provides access to a range of frequencies that include radio, cellular, and satellite communications.

The company also provides hazardous area rated enclosures for many popular industrial WiFi access points, preconfigured with antennas, equipment mounting bracket, and connection cables.

Share your industrial wireless communications challenges with the experts at Analynk Wireless. Combining your process expertise with their knowledge of wireless communications will produce the best solution.



New Explosion Proof Antenna for Iridium Satellite Industrial Communications

Communications satellite
Analynk antennas expanded capability includes
Iridium satellite based communications
Analynk Wireless has expanded its hazardous area antenna line with a new series designed for communication across the Iridium satellite network. The Iridium network provides worldwide process data transmission access for industrial operations of all types. The explosion proof antennas can be utilized with Analynk equipment, or that of other manufacturers, to provide wireless connection between a central control or monitoring facility and mobile or remotely located process measurement and control equipment.

There are two basic models, differing only in manner in which a connection is made to a suitable enclosure. The CTM model is provided with the M20 connection. The CTX model has a 3/4" NPT connector. Both models carry the same array of approvals for use in hazardous locations. The same construction that enables installation in a hazardous area also makes these units a good choice for any location requiring rugged construction.

A data sheet is provided below with details on approvals and specifications. Contact Analynk directly for any assistance you may need in meeting your wireless communication challenges. The company's extensive product offering is directed at the needs of the process control field.



Learn From History - Explosion at Texas Facility

Industrial accidents range in severity and impact from minuscule to catastrophic. As operators, owners, or technicians involved with industrial operations, we all have a degree of moral, ethical, and legal responsibility to conduct our work in a manner that does not unduly endanger personnel, property, or the environment. Maintaining a diligent safety stance can be helped by reviewing industrial accidents at other facilities. There is much to learn from these unfortunate events, even when they happen in an industry that may seem somewhat removed from your own.

The U.S. Chemical Safety Board, or CSB, is an independent federal agency that investigates industrial chemical accidents. Below, find one of their video reenactments of an explosion that occurred in Texas in 2013, along with their findings regarding the cause of the incident. Check out the video and sharpen your senses to evaluate potential trouble spots in your own operation.

Contact Analynk for any safety related information you may need concerning their products.

Installing Wireless Access Point in Hazardous Area

Industrial wireless network access point
Model AP320 Wireless Access Point
Courtesy Aruba Networks
In many technical endeavors, industrial process control being one, there are often collisions between what is necessary and what is desired. The incursion of wireless communications into the process measurement and control field has created such a collision between process engineers and IT managers. Granted, it's a cooperative and amicable collision, but a situation that can require the resolution of some incompatible interests.

For a number of reasons, it may be advantageous for the wireless network gear in the process section of a facility to conform to certain standards established for the larger scope of the organization. There can be real benefits to standardizing on particular brands or types of hardware. The tasks involved with back end management of network infrastructure are less complex when all the equipment is of the same vendor and product family. Provisioning, which includes initial setup, long term management, and unit loss management, is simplified when all the units are the same. Process engineers and operators pursue the same goal in standardizing on particular transmitters, valves, or other components that have multiple installations throughout a facility.
Industrial wireless access point explosion proof enclosure
Analynk Wireless Access Point Enclosure for
Hazardous Locations
The difficulty arises when the IT team's chosen wireless access point needs to be installed in an area classified as hazardous due to the potential for ignition of flammable or explosive gases and vapors. There is a solution, actually a fairly simple one.

Analynk manufactures enclosures for industrial wireless access points installed in hazardous locations. The current offering accommodates a range of units from Symbol, Cisco, Meru, Aruba, HP, and Motorola, with more models added regularly to accommodate additional wireless access points. Each access point enclosure is provided with UL listed explosion proof antennas, a mounting bracket designed for the target access point, and RF cables to make the antenna connections. Enclosures have penetrations specifically located to accommodate the target access point.
This arrangement allows for the deployment of the organization's preferred wireless access point in the hazardous process area.
Analynk Wireless specializes in industrial wireless communications. Your wireless communication challenges are welcome at Analynk, so make contact and share your application requirements. Combining your process expertise with Analynk's product specialization will produce a positive solution.

New Hazardous Area Wireless Antenna for GLONASS, Iridium, and GPS

Industrial Wireless Antenna for Hazardous Area
CTX Series Industrial Wireless Antenna
for Hazardous Areas

Operators in the industrial process control field increasingly rely on wireless communication as a key element of their infrastructure. The ability to connect measurement locations, even mobile ones, to data logging and control centers has enhanced operation efficiency and enabled procedures and monitoring that were cumbersome or impractical in a totally wired environment. Analynk Wireless continues with their response to demand within the process measurement and control field to utilize wireless technology across an increasing array of application scenarios by releasing their latest Hazardous Area Explosion Proof Antenna

The latest version of the company's CTX/CTM series enables remote data links for customers using Iridium, GPS, and GLONASS. This new product adds to the company's already expansive line of wireless communication products specifically designed for industrial applications, providing wireless data links to mobile or remote locations.

Analynk's antennas are operable across a very wide temperature range and provide substantial impact resistance, signal output, and ratings for hazardous environments. A data sheet for the new CTX/CTM antenna is included below. You can always contact Analynk directly to discuss your application ideas and get recommendations for product and complete system configuration.

Analynk Expands Offering of Wireless Access Point Enclosures For Hazardous Areas

industrial wireless access point enclosure
Industrial Wireless Access Point Enclosure For
Hazardous Area
Analynk Wireless has developed a range of industrial wireless communications products suitable for use in hazardous areas. One product line, Hazalynk, includes enclosures for wireless access points that can be installed in hazardous areas. The company has recognized the special adaptations needed for installing wireless access points within hazardous areas in industrial process settings, and tailored the products to show their recognition of the needs of those responsible for providing industrial wireless communications in these specialized zones.

The Hazardous Area Access Point Enclosures are designed to accommodate the customer's selected access point device. Preconfigured models accommodate units from Cisco, Symbol, Meru, Aruba, Hewlett Packard, Motorola, and other brands. Custom arrangements are possible to accommodate most brands and models.

The matching enclosure for an access point will have:
  • Custom mounting bracket mating to the customer's access point.
  • UL listed enclosure for subject hazardous area, including antenna locations coordinated with access point device arrangement.
  • UL listed explosion proof antenna, one or more as need for the subject access point.
  • All hardware, mounting plate, and RF cables to simplify installation and startup
A product specialist can help you with the latest available information. Contact them to discuss your application and how to best fulfill your hazardous area wireless communication requirement. Watch the short video.


Explanation of Explosion Proof Enclosures

Explosion Proof Access Point Enclosure
Explosion Proof
Access Point
Enclosure
This is a short video that explains what an explosion-proof enclosure is, what defines it as “explosion-proof”, and the principle behind why its safe to use in explosive or combustible atmospheres.

“Explosion-proof" doesn't mean the enclosure can withstand the forces of an external explosion. It means that the enclosure is designed to cool any escaping hot gases (caused by an internal ignition) sufficiently enough as to prevent the ignition of combustible gases or dusts in the surrounding area.





Analynk provides hazardous area wireless access point enclosures are designed and certified for use in hazardous locations. For more information, contact:

Analynk Wireless, LLC
790 Cross Pointe Road
Columbus, OH 43230
614-755-5091 phone
614 -755-5093 fax

Hazardous Area Access Point Enclosures for Explosive Atmospheres

Hazardous area wireless access point enclosures are designed and certified for use in hazardous locations such as chemical plants, refineries, oil & gas platforms, mining facilities, grain processing, and plastics processing. These enclosures also provide an additional level of security for your wireless access point by preventing tampering, vandalism, and theft.

Industrial wireless access point enclosures designed for Class 1, Division 1, Hazardous Locations, Groups C & D, ATEX Zone 1. Available for Symbol, Cisco, Meru, Aruba, HP, and Motorola access points.
  • Designed for Class 1, Division 1,  Hazardous Locations 
  • 802.11 b/g 
  • Available for Symbol, Cisco, Meru, Aruba, HP, and Motorola access points 
  • Explosion proof antennas 
  • ATEX certification for Explosion Proof enclosure and antennas available