Al, I’m not experience with TC’s but I have used them on my truck and had to work my way through problems. I am wondering, when you did the test with grounded and un-grounded TC’s were you running the reader off from the vehicle battery or a separate battery? TomC
Off the trucks 12v system. I have found the ones on Ebay described as exhaust temp. use are ungrounded , these are what I use on the Ranger, with the cheap blue, and red read outs
Al; you have confused me. I believe under the thread “Grounded and ungrounded thermocouples Again” you said about what I have been saying; the problem is when the meter’s power source is hooked to the vehicle battery. In this thread, you are saying that hooking the meter up to the car battery works ok. Is this some special "exhaust temp " meter? Could you give us where on E-bay you are getting them. TomC
Tom, on my Geo Tracker I could not make the thermocouple readers work either when powered by the vehicle electrical system. After I used a garden tractor battery that I recharged separately from time to time the readers performed perfectly. Carl Zinn used a small 12v to 120 inverter and plugged in a 120v to 12v converter (power supply for electronics) to isolate his TC readers from the vehicle electrical system.
I don’t know how else to explain it, here is what I use; https://www.ebay.com/itm/EGT-Temp-Sensor-K-Type-for-Exhaust-Gas-w-1-8-NPT-Compression-Fittings-Leads-/382137944066?var=&hash=item58f9324802 the one on the left has an alarm. If you use vehicle 12v power for the temp. displays, the thermocouplers have to be non grounded
Al, can you also tell me where you got your reader? I am not going out to the shop until this weather turns around. In the mean time I will try to buy a TC that you recommended. TomC
Hi Tom, I made a wire diagram of how my K type thermocouple and temperature read out meter is hooked up for my grate. It is the same for the hopper, cooling rails.
Ok! I am totally confused. I guess I will order some new components and do another test. TomC
Tom, I bought mine on Ebay, but can’t find the same ones now. I will keep looking, and if I find them will let you know.
Tom,this what I used, it can switched from C to F . https://www.amazon.com/Digital-Temperature-Thermocouple-Sensors-Celcius/dp/B00V25HRA8/ref=sr_1_5?ie=UTF8&qid=1548910211&sr=8-5&keywords=12v+temperature+display+k+type or this https://www.ebay.com/itm/Digital-DC-Temperature-Meter-for-K-Type-EGT-Probe-with-Blue-LED-12V-F/380884091854?hash=item58ae7603ce:g:HsYAAOSw3pVZv2Vg:rk:12:pf:0
It most like won’t work by doing any mods. It probably senses buttons to turn on then shuts off after like 60x after last keypress. The best you could really hope for is a 555timer that you could unsolder, but it is highly unlikely. You might be able to find the number on the chipset and figure out how to reprogram it, but if it isn’t something common it could be really tricky.
You can also use an arduino or raspberryPi.
Here is a build on YouTube that I hadn’t seen before. He has some basic ideas but I fear he has some really big problems ahead. https://www.youtube.com/watch?v=522BaxM0Jnk&fbclid=IwAR1F6Oe5QW-10CaHkUUHcmKPSA6vrsIv10Dv9k9ddGkPSYpQrTgovptGS-k TomC
I think you are right Tom. It’s almost disinformation for the uninformed who will come across it.
He should be using charcoal for that small engine for one big thing.
I agree totally.
Before I found DOW I watched quite a few of these shiny new “gasifiers “ that probably ran for maybe an hour before the motor or filter would be plugged.
I even got to experiance some of that myself.
Now if I don’t see some soot and tar around the filler neck I don’t believe it!
Thanks for the video Mr. Tom
I watched and then read the comments . I found them very entertaining
I wish the young man could come to Argos and let a few of us give him a ride on wood gas . ( not to be confused with wood smoke )
Wow! 229,000 views on that video alone and he has 1.4 MILLION subscribers! You don’t have to be accurate or truthful to make money on youtube. If my own stats are any gauge, he has already made at least $400 of that video
It’s “entertain” not “educate”. Too bad.
Tom i think he needs a little more dark matter in the reactor. like Wayne Said wood smoke and properly made wood gas is two completely different fuels.
Man this was painfull to wach. Poor engine. People like that can do so much damage.
Tom, and all DOW,
It really says something great about the people on this forum, that they immediately catch all the problems with “nighthawkinlight’s” bike engine gasifier. If he started with that design, then showed all the trouble soon coming, I would have more respect for him and his YouTube channel. His channel is popular, he has followed the successful formula of showing a lot of cool stuff, (some of which blows up…) One of his videos has 20 MILLION views. That is why he can do anything and get a good audience. Hopefully, frustrated enthusiasts will do more research and end up here!
The sad thing is, if 3 people “invest” in his system, already the most motivated 1%, you’d probably be lucky if one tries again and searches out real expertise. Most people will just figure they can’t do it and chalk it up as a loss.
Buddy is doing a great disservice, actually diminishing the potential wood gas group.