Subscriber Discussion

Explosion Proof Card Readers

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Salil Kallada
Jun 11, 2015

Dears

Anyone has a clue where we can have Explosion proof Access Card Readers?

Thanks

Mohammed Salil

U
Undisclosed #1
Jun 11, 2015

No idea but out of curiosity, what is the explosion proof strike/release mechanism that you will be using?

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Brian Rhodes
Jun 11, 2015
IPVMU Certified

This is a good question. Anecdotally I have seen off-shore oil platforms with EX rated areas use pneumatic doors (think sci-fi spaceship) to secure specific areas.

It's not an electric strike or maglock for sure, but the entire door assembly itself can be made to 'lock' an opening.

(1)
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Brian Rhodes
Jun 11, 2015
IPVMU Certified

It's a super-niche application, so you probably should not expect a wide selection of offerings, but there are a few:

Mercury HMI (UK), unrelated to Mercury Secury, offers an EX rated reader branded Sentry. It doesn't output weigand, and there is an intermediate interface needed to integrate to an access system.

Cost is unpublished, but it is likely high.

HID also offers a 'hazardous area' reader that is not EX rated, but is Class 1/Div 2 compliant. Connecting that device is similar to other readers, and there is no need for an intermediate interface.

It is special order, and it looks like pricing starts at ~$500 USD, but the cabling utility rating is not part of the device and may increase the overall cost significantly if field certificaton is required.

(1)
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Salil Kallada
Jun 14, 2015

Thanks Brian

We will advise client to use EXPROOF ENCLOSURES in the worst case

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