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Intrinsically Safe Radios- What Motorola Radio Do I Need for Safety?

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Environments in which workers expose themselves to combustible vapours and dust must

take precaution when using any kind of electronic equipment. This holds true for two way

radios as well. Many components on radios provide the risk for creating conditions which

might trigger an uncontrollable reaction or explosion. Industries like mining, petrochemical

processing and refinement, laboratories, and any others which require work with volatile

chemicals, fine grain dusts, or loose fibres should consider intrinsically safe radios for

these environments.

Classification of Intrinsically Safe

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In the USA and Canada, there are two main classifications of intrinsically safe - Factory

Mutual (FM Approved) or Canadian Standard Association (CSA Intrinsically Safe). Here

are some characteristics for each of the classifications:

FM Approved - This is generally the USA standard for all industries for intrinsically safe.

FM Approved radios are approved in Class I, II and III, Division 1, Groups C, D, E, F and

G & Class I, Division 2, Groups A, B, C and D.

CSA Intrinsically Safe - Is the standard for Canadian petrochemical or reactive

environments. CSA IS radio are approved in Class I, II and III, Division 1, Groups A, B, C,

D, E, F and G. The CSA intrinsically standard is more encompassing, but there is also

increased cost of the radio.

What does Class, Division, & Groups mean?

This is one of the top questions from our customers, and here is a list of what these

classifications mean:

¯ CLASS

Class I Areas in which flammable gases or vapors may be present in sufficient

quantities to be explosive or ignitable.

Class II Areas made hazardous by the presence of combustible dust.

Class III Areas in which there are easily ignitable fibers or flyings present, due to the

type of material being handled, stored or processed - but in which such fibers or

flyings are not likely to be in suspension in the air in quantities sufficient to produce

ignitable mixtures.

DIVISIONS

Division 1 - Normal Situation A hazard is present in the everyday normal production

operation or during frequent repair and/or main

Division 2 - Abnormal Situation Potentially haz;

safely confined within closed containers or closed systems, and will be present in the

atmosphere only through accidental rupture, breakage, or abnormal operation

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¯ GROUPS

Group A, B, C & D gases and vapors in Class I locations are classified into four

groups, by the code A, B, C, and D. These materials are grouped according to the

ignition temperature of the substance, its explosion pressure and other flammability

characteristics.

Groups E, F & G Combustible dust in Class II locations are classified according to

ignition temperature and the conductivity of the hazardous substance.

GROUP GROUP GROUP GROUP GROUP GROUP

A B C D E F

GRO

G

Acetylene Flammable Flammable Flammable Atmosphere Atmosphere Atmosp

Gas, Gas, Gas, contains contains conta

Flammable Flammable Flammable combustible combustible combu~

Liquid Vapor Liquid Vapor Liquid Vapor metal dust, carbonaceous dusl

or or or including dust, includ

Combustible Combustible Combustible Aluminum, including Flour, G

Liquid Liquid Liquid Magnesium Coal, Woo,

Vapor, such Vapor, such Vapor, such and other Carbone Plastic,

as Hydrogen as Ethylene as Propane commercial black, Chem

alloys Charcoal, and

Coke

Construction of the Radios

When Motorola designed the XPR 7000 Series (FM & Limited CSA Approved) and XPR

7550 I.S., they engineered and selected each component to fit the standards required by

specific industries. Motorola chose everything in these radios for creating products that do

not sacrifice safe user operation. The case material, case shape and design, electronic

components, electrical connections, switches - all of these components provided solutions

to eliminate specific hazards. The radios have a

discharge, prevent gases and dusts from entering

work continuously so that help always stays within rea~

Radio Certifications

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The Motorola XPR 7000 Series and XPR 7550 I.S. digital radios meet specific standards

for safety set by independent, third-party organizations which have developed their

identities as being foremost authorities regarding safety conditions in the workplace. They

reviewed Motorola XPR 7000 Series holds certifications for FM and Limited CSA Approval

for Division I, Class I, Groups C and D, Class II, Groups E, F, and G, and Class III when

ordered with the FM/CSA upgrade option and used with FM intrinsically safe battery. They

reviewed Motorola XPR 7550 I.S. holds certifications from CSA for Division I, Class I,

Groups A, B, C, and D, Class II, Groups E, F, and G, Class III, and Division II, Class I,

Groups A, B, C, and D when paired with the NNTN8386 battery.

Possible Industries for These Two Way Radios

Because of the different certifications for these radios, they share some similar applicable

industries, but buyers should view them independently for where they will best match the

safety requirements for users.

The XPR 7000 series does not meet the qualities necessary for any petrochemical refinery

or processing work, but they do provide the necessary certifications for safe use in mining,

farming, textile, fishing and timber industries. This radio will likely continue to function in

the harsh atmospheres that these industries demand of their equipment. It will not fail

because of metal, coal, grain, or other dust in the air. It will continue to operate when

exposed to cotton fibers or through heavy mist and torrential downpours, assuring that

operators and workers will have access to communicate in emergency.

The XPR 7550 CSA IS holds higher certifications. It is primed for use in enviroments that

need more safety protections for working with highly volatile and combustible chemicals,

like in the petrochemical industry. Workers can quickly identify the XPR 7550 CSA IS as

intrinsically safe because of its blue colour, so they won’t confuse them with other radios.

These radios provide excellent qualities in manufacturing and design which used

engineering to meet the various safety requirements for certification. The XPR 7000 meets

FM certification requirements, while the XPR 7550 CSA IS holds certification as

intrinsically safe by the CSA. These radios work for many industries because they will

continue to function in harsh weather and will not expc

conditions.

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Nova Communications provides businesses and organizations with a variety of two way

radio communications solutions, which include the Motorola XPR 7550 I.S. and XPR7000

digital radios. Please contact us for more information.

~ Construction, Electric Utilities & Renewable Energy, Emergency Services, Government Departments, Intrinsically Safe Radios, Manufacturing, Motorola Business Radios, Motorola MotoTRBO Digital Radios, Oil Gas & Mining, Two Way Radios, Two-Way Radios & Rugged Devices

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