Explosion Proof Detection

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Ok...  what is there that meets a weatherproof and explosion proof criteria,
and has any chance of detecting in intruders in a fenced yard.

Yes I said explosion proof.

I was thinking stacked photo beams for coverage, but I can not find any that
meet the explosion proof rating.  Suggestions?  Ideas?  Just walk away....
I actually quoted them a video system and found explosion proof rated
cameras for a reasonable price, but they were not willing to pay what it
costs.

Now they want me to quote them some kind of detection system.  Their fence
is way to loose and out of tune to even consider a microphone cable on the
fence.  Its in town with walking traffic on two sides anyway.

 


Re: Explosion Proof Detection


Bob La Londe wrote:
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Sounds like a wild goose chase into a dead end.

--
js

Si Vis Pacem, Para Bellum



Re: Explosion Proof Detection


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Yep.  Still figured I would give it a shot.  If they had not turned down the
cost on the video system I would be a little more gungho on the detection
stuff.  I can't see how detection would be cheaper... and work.


Re: Explosion Proof Detection


Bob La Londe wrote:
 > Yep.  Still figured I would give it a shot.  If they had not turned
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Why explosion proof, isn't it outside?

--
js

Si Vis Pacem, Para Bellum



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Because its an environment with flash potential.  Yes its outside.


Re: Explosion Proof Detection


Bob La Londe wrote:

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Well, no shit.

--
js

Si Vis Pacem, Para Bellum



Re: Explosion Proof Detection


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Atleast one of my competitors reads this group.   I do not like to be too
specific about clients.


Re: Explosion Proof Detection


"Bob La Londe" wrote:
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Shhhh...

Re: Explosion Proof Detection


"Bob La Londe"  wrote in message
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Instead of "explosion proof", search for Class div 1. Like...

Class div 1 motion detector

http://www.google.com/search?hl=en&source=hp&q=Class+div+1+motion+detector&btnG=Google+Search&aq=f



Re: Explosion Proof Detection


SDI-77XL2-EX-OUT - MSRP: $3,270.00
Outdoor Explosion-Proof Stereo Doppler Microwave Intruder Detector

The SDI-77XL2-EX Model of Stereo Doppler was developed to protect Hazardous
Locations due to the presence of flammable gasses or vapors, combustable
dusts or easily ignitable fibers or flyings. The SDI-77XL2-EX electronic
assembly is configured to be easily inserted into a special explosion-proof
enclosure. The unit is suitable for applications in Hazardous Locations
under the following classifications: Class I, Div. 1 & 2, Groups C,D, Class
II, Div. 1 & 2, Groups E,F,G, Class III, NEMA 7CD, 9EFG. The unit is
suitable for installations at petroleum refineries, chemical and
petrochemical plants, storage areas and other processing facilities where
hazardous substances are handled or stored.

http://www.protechusa.com/Products/ExplosionProofMS.htm


More...

http://www.moniteurdevices.com/sw_ttl.htm

http://www.go4b.com/usa/pdf-datasheets/p800-proximity-sensor.pdf

http://www.flowserve.com/files/Files/Literature/ProductLiterature/FlowControl/WorcesterControls/WCABR1027-00.pdf

http://www.mastergearworldwide.com/pdfs/B02038-U-Bolt.pdf

http://www.am.pepperl-fuchs.com/pdf/documents/sc04-306_haz_loc_ultras.pdf



Re: Explosion Proof Detection


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WOW ..... that's some price tag!

If the guy was sqawking at a video system price, a couple of these
ought to give him cardiac arrest!

Re: Explosion Proof Detection


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I agree.  All in one cameras listed as explosion proof are not much more
than regular all in one weatherproof cameras of similar video specs.


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I know when I do regular electrical work and its explosive proof in
nature it runs 4 to 6 times the cost of normal work.
plus you have all the special seals and elbows and fittings which run
hundreds of dollars.
I did a job where we installed a Mineral Spirits distillation unit and
we where able to keep main controller on a wall  of the next room so
it was out of the explosive zone but all pipes in and out had to be
sealed etc. to prevent vapors from migrating from one room to the
next.
Those seals must also be used even with low voltage runs if there is a
chance of a spark .


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Yeppers.  I looked into that stuff when I did the quote for the video
system.


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they want "Explosion Proof"  and their  inside a town  with "walking traffic
on two sides" ?!!
how in the hell did they get a permit to do that?

I've done the explosion proof stuff for a defense contractor  and their
first thing was to be wayyyyyy  far away from people..
See which  codes  their  using to base their call for that type of devices..
They  maybe looking at the wrong specs...



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criteria,
that



Re: Explosion Proof Detection


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Every gas station has explosion proof fitting and such, and there are
plenty of them inside a town  with "walking traffic on two sides"

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and we have ass hole gas station owners around here who let fireworks
be sold in there lots and fire inspection does nothing to boot.

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those electrical  fitting you reference  are  seal-tite,   for hard wall
pipe
(ment to keep vapors out of the electrical box)
a fiberglass or plastic tank  is not classified as explosion-proof,
neither is the vent cap to the same tank..


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fence
the

Every gas station has explosion proof fitting and such, and there are
plenty of them inside a town  with "walking traffic on two sides"



Re: Explosion Proof Detection


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 I wasn't referring to "sealtight" !! . I was referring to EYS and
other such explosion proof fittings required on conduit where
explosive vapors may be present.  Believe me, I've installed more than
enough to know what they are. Separating all the individual conductors
with packing, mixing up a little "chico". Kind of miss it sometimes

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