Newbie in CA Posted May 31, 2012 Share Posted May 31, 2012 We were asked by code officials if we plan to put in ethanol detectors (for ethanol vapor) to automatically turn on fans in our barrel room should a spill occur when noone is on site. Anyone ever come across anything like this request before? It is tied to spill mitigation. Also, I've never seen an "ethanol vapor detector" - anyone have one, know where I can find one? Thanks all Link to comment Share on other sites More sharing options...
Mash Posted May 31, 2012 Share Posted May 31, 2012 I have been a HVAC contractor for 20 years, never heard of one. Link to comment Share on other sites More sharing options...
Jedd Haas Posted May 31, 2012 Share Posted May 31, 2012 Hi, Although not required or requested by any agency in my area, I think the idea of an ethanol detector is sound. My idea is to use it as an alarm, similar to a smoke detector. It seems off-the-shelf devices are mostly "consumer use breathalyzers" and thus I didn't find anything available off the shelf. I have looked into building our own using a part you can buy from overseas, but so far the engineer hasn't delivered a schematic for the prototype. Link to comment Share on other sites More sharing options...
FrEwing Posted June 1, 2012 Share Posted June 1, 2012 Did a quick search and found this: http://www.conspec-controls.com/products/ethanol-gas-detector.asp Let us know if this company has what you need. I'd be interested in putting one in even if it weren't a requirement. Good luck Link to comment Share on other sites More sharing options...
Made in Maine Posted June 1, 2012 Share Posted June 1, 2012 Hey folks, Here is one like ones I have seen used in Hydrogen labs. http://www.rkiinstruments.com/pages/ps2.htm. According to one distributors web page it rusn around $425. pretty cheap insurance. IMHO. Jesse Link to comment Share on other sites More sharing options...
ViolentBlue Posted June 1, 2012 Share Posted June 1, 2012 I've herd that carbon monoxide detectors are set off my ethanol vapor. I've yet to confirm this myself. Link to comment Share on other sites More sharing options...
Rich Morgan Posted June 4, 2012 Share Posted June 4, 2012 Plenty on the market, fixed and portable. Seek out Drager, Honeywell and; http://www.rkiinstruments.com/pages/ps2.htm Link to comment Share on other sites More sharing options...
Timo Posted June 4, 2012 Share Posted June 4, 2012 Thanks all for your thoughts. Rich, I checked out the link to RKI and spoke with a tech there who suggested two different units for this. The less expensive PS-2 unit seems about right at $460. The more expensive one runs at around $1000. It will - detect ethanol vapor - trigger an alarm at a pre-determined level - and/or is able to be rigged to a second unit like, e.g. a venting fan This unit and system will work for me in a situation where the fire dept wants to know how we will deal with a spill when the distillery is unoccupied (at night say). Link to comment Share on other sites More sharing options...
Jedd Haas Posted June 5, 2012 Share Posted June 5, 2012 Here's a link for a DIY version my engineer found. 1 Link to comment Share on other sites More sharing options...
Sailor Posted October 11, 2016 Share Posted October 11, 2016 On June 4, 2012 at 9:58 PM, Jedd Haas said: Here's a link for a DIY version my engineer found. Jedd can you send me this link. Link to comment Share on other sites More sharing options...
vsaks Posted October 12, 2016 Share Posted October 12, 2016 You can take a look at MQ-3 sensor which will detect down to 125 PPM. The LEL for alcohol is 3% or 30,000 PPM. Typically you'll start the exhaust fan at 25% of LEL which is 75,000 PPM. You could probably build one with Arduino for under $50. But for something this critical, do you really want to risk a homebrew design ?https://www.sparkfun.com/products/8880 4 hours ago, Sailor said: Jedd can you send me this link. Link to comment Share on other sites More sharing options...
Silk City Distillers Posted October 12, 2016 Share Posted October 12, 2016 Back from the dead. There is a catch 22 here, in that if you are being asked by authorities to provide said monitoring, they are likely going to classify the environment, which means explosion proof monitors. DIY? Why bother. I've seen Honeywell E3Point combustible gas units go cheap on eBay. $250ish. And that's a fully packaged wall mount solution, plug and play. If you want to experiment, pick up an explosion proof monitor from eBay and tinker around. You can usually find nice MSA Ultima or Draeger Polytron XP units for a hundred bucks or so. If you have the electronics skill to build one from a raw sensor, hooking up one of these units should be no problem. Do your research if you go this route, there are literally hundreds of unit variations and you need to understand industrial sensors and electronics to not waste your money. Calibration of these things is a whole other can of worms, especially since you aren't calibrating with ethanol vapor, but with methane/propane - and making the appropriate conversions associated with vapor concentrations. Link to comment Share on other sites More sharing options...
Silk City Distillers Posted October 12, 2016 Share Posted October 12, 2016 For example, here is a damn beautiful unit, $350 - Drager Polytron Infra Red (better than catalytic) - with the HC variation (good for selective measurement around 3.4um - includes ethanol) http://www.ebay.com/itm/Drager-POLYTRON-IR-EX-DISPLAY-/122152601446?hash=item1c70dcc766:g:358AAOSwNuxXasA9 http://www.es-sens.com/file/files/Product/Drager/Polytron_IR/Polytron_IR_Ex.pdf Your mileage may vary, don't complain to me if buy something like this. Buying industrial surplus is risky, and assumes you know what you are doing. If it works, and you can use it, you probably saved 2 grand and have a top-of-the-line solution. Link to comment Share on other sites More sharing options...
Blockader Posted October 13, 2016 Share Posted October 13, 2016 Yep, we used the RKI Beacon 200 2-channel with infrared sensors. I think total cost was around $2000. We installed it as a best practice and it ended up being one of the first things that Cincinnati Insurance asked us if we had. The only time it has gone off was when a welder was using Argon in the stillroom. Justin Manglitz ASW Distillery, Atlanta GA Link to comment Share on other sites More sharing options...
Jeffa42 Posted November 8, 2018 Share Posted November 8, 2018 Anyone used the RKI GX-2012? They told me today they can calibrate it for ethanol prior to shipping and it would be a solid vapor detection device at $995. Anyone have any experience with it? They also offered up a less expensive option, the PS 2 Model for about $450, but it has no display, only 3 alert lights, where the others will give much greater detail. Any info is appreciated. Link to comment Share on other sites More sharing options...
vsaks Posted November 14, 2018 Share Posted November 14, 2018 We have been using the $450 PS 2 model for the last one year. Had the manufacturer set the alarms at 10% and 20% LEL of ethanol. Each alert light/alarm also turns on a relay, so you can hook up a fan to turn on automatically. We got the 115V version and our exhaust vent fan is connected to the relay to turn on automatically at 10%. On 11/7/2018 at 4:53 PM, Jeffa42 said: Anyone used the RKI GX-2012? They told me today they can calibrate it for ethanol prior to shipping and it would be a solid vapor detection device at $995. Anyone have any experience with it? They also offered up a less expensive option, the PS 2 Model for about $450, but it has no display, only 3 alert lights, where the others will give much greater detail. Any info is appreciated. 1 Link to comment Share on other sites More sharing options...
Sailor Posted November 14, 2018 Share Posted November 14, 2018 We have been using the $450ps2 monitor. Our setup is the same as VSAKS. I am and the fire marshall is happy with the monitor wired to an alarm and explosion proof fan with static free ducting. 1 Link to comment Share on other sites More sharing options...
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