GE H-7 Halogen Detector: Sniffing Out Leaks

[@PINKBOY1006]

The cat being part of the cold opening is perfect. Such a genuine laugh, I love it.

[@MrBanzoid]

It's doing a CAT scan!

[@TheKencoffee]

Purfect!

[@darrellbedford4857]

​@@TheKencoffeeno it's purrrrfrect

[@Ray_of_Light62]

First time I see the practical application of a Compactron electron tube. It contains three distinct valves in one tube. Thanks Anthony

[@marksmith9295]

Very interesting. For a second I thought the intro was going to involve a meme on cats excellent night vision. Thankfully Gilles addressed the cat face to face.

[@Madness832]

It was made in Lynn, MA. I live there.

[@BVN-TEXAS]

I use the successors of it the H-10 daily looking for HVAC leaks and it’s still considered the best around.

[@trevorhaddox6884]

I would say mid to late 60s, maybe early 70s given the use of a compactron (popular in TVs at the time to compete with transistors), as the earlier models had three seperate tubes (as shown in the repair kit image)

[@semidemiurge]

The thoroughness of your research and explanations is of a degree and quality that is rare. Your channel is an absolute gem. Can I suggest making some vintage merchandise to sell to support your fine efforts?

[@patrickshannon4854]

Re: infra-red spectronomy. I believe this is the method automobile exhaust gas analyzers operate on. You should find yourself a used, discontinued Snap-on MT496 ExhaustGas Analyzer. Infra-red source passing through sapphire windows in sample chamber, then through optical filters. Ck it out, you can probably find one for free or a nominal fee.

[@WECB640]

This was fascinating! Thank you very much for the video and education of how the device works and the chemistry of the sensor.

[@bpark10001]

There is a much simpler detection scheme sold by refrigeration houses & even amateurs can make one. Get a standard propane torch. There is a ring of holes around the burner base that draws in the air for combustion. Build a manifold around this & connect to a hose, the other end which will be the detection probe. Using a small hose clamp, fasten scrap of #12 bare copper wire to the burner barrel (parallel to it) so one end protrudes upward beside the flame. Form a little loop in this wire so the loop surrounds the tip of the inner blue flame cone. Put larger black cylinder around the burner to exclude external light with hole to peer through. To use, light the torch. The copper loop will glow dull red in the flame. You will see that & the blue flame only if there are no halogens present. If halogen-containing refrigerant is present (sucked in through the hose to mix with the flame), halogen will attack the copper forming copper halide. This is volatile in the flame & the green glow of copper ions will be plainly visible. Without halogen, only copper oxide forms which is not volatile, so no copper gets to gaseous state & no green glow occurs. This test if VERY sensitive.

[@nunya___]

I didn't like these much because it was more difficult to watch the flame for slight colorations _and_ navigate the hose along the many elbows and joints in a coil-TEV system. I mostly used electronic detectors to find general area...then soap bubbles to pinpoint exact location. ;)

[@gustavgnoettgen]

I've seen copper discoloring flames without putting effort into making it doing so.

[@44R0Ndin]

Make sure you don't breathe the combustion products of halogenated refrigerants, you'll get acid burns to the most important part of your lungs, the part that lets your blood get oxygen from breathing. How does this happen? Say you have fluoromethane as the refrigerant. Even under ideal circumstances, combustion of this gas with oxygen produces carbon dioxide, water vapor, and (here's the dangerous one) Hydrogen Fluoride. HF gas will turn into Hydrofluoric acid upon contact with water, and your lungs must remain moist at all times in order to function properly to keep you alive. So if you breathe the combustion products of a halogenated refrigerant, you are going to give your lungs acid burns. Keep that up long enough and you'll get chemical pneumoia just like unprotected people during WWI chemical warfare attacks did. Even the wonders of modern medical science don't have a good answer for how to treat that.

[@bpark10001]

@@gustavgnoettgen It does so initially, until the contamination is burned off or if it is mechanically knocked. But after the flame is running & the copper is hot, the green stops. The green from halogen is a green CLOUD about the copper loop, not the flecks you get when bumping or scraping it.

[@railgap]

This brings back fond memories from my USAF days: confusing/trolling the base cops while dressed in hazmat suits and gas masks, and carrying faked-up gas sniffers.

[@AppliedCryogenics]

What a clever invention. I swear I see signs left and right that in the previous century, more people were absolutely brilliant. I hope this is just a logical fallacy, though.

[@coldfinger459sub0]

I will tell you for a fact and so will many technicians who actually use the same leak detectors to this day. It does work on HFO and non CFC refrigerant. I actually own and have purchased laboratory grade Lab refrigerant reference bottles for testing refrigerant leak detector sensors. And have posted videos side-by-side. Showing that this old H - 10 refrigerant leak detector picks up just as a sensitive as $1000 new. Inficon D-TEK Stratus Refrigerant Leak Detector R134, R1234YF, R410 Doing side-by-side test comparisons.

[@chrisk1944]

Brilliant, as always; thank you :-) I hope to one day see the Mine Safety Appliances explosimeter. I happen to have one, if you'd like to borrow it ;-)

[@barryolson3998]

Very interesting device.

[@MajoroTom]

posting this at 4 in the morning dang

[@sammy5576]

His time or your time?

[@integerofdoom69]

Not like we're asleep. Insomnia is fun!

[@integerofdoom69]

​@@sammy5576My time is the time of the universe.

[@vergil64]

I absolutely love this channel.

[@chrisingle5839]

I always like R11. I first saw it as a solder flux remover. It would sit in a cup on the desk and slowly bubble. Only later did I know it a a really nice refrigerant in industrial chillers.

[@kevinthompson4138]

Compactron for the win first time to see one outside a tv

[@eyerollthereforeiam1709]

Will it do a cat scan?

[@gustavgnoettgen]

#cadmeowm

[@PetesGuide]

That was a catscan.

[@PetesGuide]

I can’t wait to see the cold opening when you finally put your hands on a catnip detector.

[@frogz]

that cat MADE the video, thank you for keeping it in!!

[@KellyClowers]

Very interesting, thank you!

[@65charliemopic]

The later Model H-10 is still in production, and has been for at least he last 35 years that I've been in the HVAC trade.

[@DavidVerch]

I served on a US Navy sub between 1990 and 1994. We had something like the H-10. I don't remember the plug though.

[@napalmholocaust9093]

The filter elment/s may constrain the missing ball. You'd want the ball below the filter if it was only one so it couldn't form a seal at the top or get ingested.

[@nunya___]

I remember the filter being in the tip, the ball above as he described and never had issues with the ball but then, I used the later -10 model.

[@marksmith9295]

The missing ball makes the clear tip of the meter function as a rotameter which is essentially a flowmeter using bernoullis principle of fluid dynamics.

[@detroitredneckdetroitredne6674]

Cool video brother next time. Give a warning for the loud noise directly into my ears

[@JCWren]

Coincidence that R-12 was banned about the same time DuPont's patent ran out? I THINK NOT.

[@EpsilonsReviews]

A good replacement for the airflow ball would be different weights of plastic airsoft BBs!

[@RambozoClown]

Cat FTW!

[@AnyoneSeenMikeHunt]

Not ironic that the people who commercialised toxic gases and the leaky machines also sell the level of poisoning meter.

[@toby2138]

The compact version is still the best there ever was for R22

[@jamestregler1584]

Yes I took have a Shopworkcat ! 😉 !

[@CameronMcCreary]

The "leather" looks more like "leatherette," a faux leather.

[@ryanrovere4023]

"Leatherette" is just a blanket term for artificial leather of any type. It's not made from ground and reconstituted leather.

[@jimurrata6785]

Warm leatherette melts On your burning flesh...

[@KellyClowers]

Kitty!

[@Freedom4Ever420]

Nice cat

[@simoncleret]

Your cat has a cute voice

[@integerofdoom69]

Mwow!

[@BVN-TEXAS]

If you want a laugh, an HVAC tech made a song about the H-10. kzbin.info/www/bejne/boCpkIevZ7CYqcksi=bIFK0TsxCr9s0-Sv

[@ahooper99]

must watch!

[@daviddavidson2357]

Cats get more likes. Also keep up the good work!

[@kingfish4575]

Kitty!❤

[@veteranironoutdoors8320]

+1 for the 🐈‍⬛

[@nelsin1925]

Recently charged, big (orange) capacitors, are bad for your health if touched wrong mm'kay.

[@arcticpilotshow4440]

It is cat calling device.

[@Themanwithnoscreenname]

Halogen detecting equipment? Oh this one oughta be a gas.

[@svgalene465]

Needs more cats…

[@dougwalker4944]

@0:10secs.....any video that starts with a cat!😻 .quote... hey man you making a vid? ..can i help?😹 Q's ...boy,girl,name,breed,age?😸

[@kidmohair8151]

having nothing pertinent to add, i shall leave these squiggly things in the form of a sentence to titillate the algo-deities of youknowwhotoob.

[@RobertCraft-re5sf]

The modern ones today are cheap plastic and made in China :[

[@gary851]

i like cats but they shit and puke so i dont have 1.

[@loosehandle1]

Ha so do you

[@gary851]

@@loosehandle1 ye but i puke in shit to a toilet and cats shit to litter box and you have to take it out and they puke all over the place. Cats are cute as fack thou!