Discontinued The Persei Vaporizer for herbs and concentrates.

[OF]

Sorry done editing I promise! Just straight dmm (10A limit) from negative battery to the inside threading of the top, while the postive of the batteries made contact with the head. Could very well be a loose connection or the switch limiting the current, the imr's can put out 10a+ I think

Cool. Thanks for the additional details. I still think your number is artificially low, here's why:

To measure current, the DMM (which in fact can only measure voltage) has to use a shunt (low value resistor) in series with the current. The meter then measures the voltage drop across it (a measure of current via Ohm's law) and reports that value as a correctly scaled current. Changing ranges changes these resistors. The top range one is probably a piece of heavy wire inside the front panel or on the PCB between common and the special 'high current' jacks. Typically they are 'trimmed' (calibrated) with some solder on the side as the exact value is hard to control. The size is chosen so at full range the full range of the basic meter is met, 200mV. At ten amps, 100 mV is 'lost' on this resistor. BTW, the 10 Amp limit is time related, you can go to 20 for a second or two without issues.

There's also more resistance added through the leads and connections. All this adds up to more resistance (most likely) than normal, therefore lower current. Typical numbers for the leads are hundreds of miliohms, most of an ohm happening sometimes. Does your lowest range ohms scale say 00.0 when the leads are shorted? Doubtful. This last is why.

If you have another meter handy (or can borrow one) there are two easy ways to back this out and get a solid reading. One is to measure the voltage drop on the meter by probing the minus terminal of the battery and the shell of the battery, position not important since there will be trivial currents in this circuit. Then use that number to back 8.4 Volts off. The other way is to put a second current meter in the circuit, note the new current, then remove the first and scale using the difference in readings. I suspect this effect is important and might explain some of the loss. Some of it is, of course, the internal resistance of the battery in play causing it to 'sag' under load, but we can't get to the positive side to make this reading easily.

Fun stuff. Thanks again.

OF

 

[JoeKickass]

Fun indeed, couldn't find an actual specified resistance from the manufacturer, just 10a +/- 10ma resolution, "%2 of reading + 5 digits" accuracy

 

[THC SCIENTIFIC]

Ok so here goes another nice little pass through option people will have.

You will be able to regulate voltage on it.

Yes using the pass through (aka The Reactor) you can regulate the voltage on it. The range is not set in stone but we looking at 3.7v all the way up to 7.4v or maybe even 8.4v. We will see.


Another nice little option to be named later will be coming on The Reactor.

 

[JoeKickass]

Ok so here goes another nice little pass through option people will have.

You will be able to regulate voltage on it.

Yes using the pass through (aka The Reactor) you can regulate the voltage on it. The range is not set in stone but we looking at 3.7v all the way up to 7.4v or maybe even 8.4v. We will see.


Another nice little option to be named later will be coming on The Reactor.

Nice, everyone knows my vote is for 8.4v

Is it a dial or button adjustment?

 

[OF]

Fun indeed, couldn't find an actual specified resistance from the manufacturer, just 10a +/- 10ma resolution, "%2 of reading + 5 digits" accuracy

Yup, now you know what it is and how it happens. Sometimes it's even worse, a lager than needed resistor (wire) is used and just tapped off at the magic spot (plus or minus those two percent...). Meaning there's more in there than needs to be.

You can also see why the spec gets so loose, it's a labor issue against high cost for 'real' parts.

In some applications the shunt is somewhere else. Like measuring the starter motor current in your car. You'd bolt it in with heavy cable and run fine wires out. The standard is 50 mV for full scale to cut the 'insertion loss'. If you have a sensitive enough meter you can also do tricks like reading the voltage drop across the battery case (negative battery current flows through it....).

Fun indeed. And you can even get paid for it, under the right conditions of course.

OF

 

[OF]

Nice, everyone knows my vote is for 8.4v

I thought you were down for 12.6 Volts? Shows to go ya how easy it is to get guys confused around here....

OF

 

[THC SCIENTIFIC]

Nice, everyone knows my vote is for 8.4v

Is it a dial or button adjustment?

You will never know until then. Haha

 

[JoeKickass]

I thought you were down for 12.6 Volts? Shows to go ya how easy it is to get guys confused around here....

OF

12v if possible, that would make 4 ohm carts really rock!

 

[THC SCIENTIFIC]

12v if possible, that would make 4 ohm carts really rock!

ya but that would create headaches up the ars.

 

[JoeKickass]

ya but that would create headaches up the ars.

Or mass narcolepsy...

 

[druminfected]

Got a bad cartridge in my 5 pack of 5 Ohms. Good thing I made sure it worked before loading it up, what steps do I need to do to get an exchange, submit ticket again THC?

UPDATE:
tried to prime a 5ohm and didn't see any red at all, but tried with 8.4 real quick and it lit up so nevermind and ignore this

 

[JoeKickass]

Got a bad cartridge in my 5 pack of 5 Ohms. Good thing I made sure it worked before loading it up, what steps do I need to do to get an exchange, submit ticket again THC?

UPDATE:
tried to prime a 5ohm and didn't see any red at all, but tried with 8.4 real quick and it lit up so nevermind and ignore this

Where you checking them on 3.7v? If so yeah you could die of old age before you see a glow...

 

[Darb]

So has anybody tried the Tenergy RCR123A batteries that came with the thermovape in the Persei?
They list rcr 123 and cr 123a on the delta9 website....

 

[JoeKickass]

So has anybody tried the Tenergy RCR123A batteries that came with the thermovape in the Persei?
They list rcr 123 and cr 123a on the delta9 website....

Are they these ones:
http://www.batteryjunction.com/rc375reliba.html

Because it says current draw is less than 0.55 amps...

 

[OF]

Are they these ones:
http://www.batteryjunction.com/rc375reliba.html

Because it says current draw is less than 0.55 amps...

Yes, those are the ones. They are definitely 'off chart' in this application and the capacity takes a serious hit because of it. Likewise, total service life (cycles) will no doubt be lowered. This 'pushing the envelope' is why the 900 mAh version and others that look more attractive aren't.

TV reviewed then tested a bunch of batteries along the way.....in fact testing is still on going (wink, wink).

OF

 

[THC SCIENTIFIC]

Are they these ones:
http://www.batteryjunction.com/rc375reliba.html

Because it says current draw is less than 0.55 amps...

They will fit, as far as working? cant comment, but what i can comment is that it will not charge in the Persei Charger, or the Omicron Charger.




Update.

We are getting closer on the nail cart Hopefully we will have a prototype soon.

 

[OF]

They will fit, as far as working? cant comment, but what i can comment is that it will not charge in the Persei Charger, or the Omicron Charger.

Update.

We are getting closer on the nail cart Hopefully we will have a prototype soon.

Excellent point, you do need to charge 'em and they take a special charger.

Great news on the nail cart. Be cool to finally have 'the big dog' to add to the family....not that I'm all that likely to use it much. Then again very few four wheel drives ever make it off road, do they? I'm just afraid I'll end up needing a Persei to put it on.......

OF

 

[JoeKickass]

Excellent point, you do need to charge 'em and they take a special charger.

Great news on the nail cart. Be cool to finally have 'the big dog' to add to the family....not that I'm all that likely to use it much. Then again very few four wheel drives ever make it off road, do they? I'm just afraid I'll end up needing a Persei to put it on.......

OF

Hey the clubs around here have been getting some great bubble hash lately! I wouldn't mind doing some nail cart rips with one of the $25/gram 50%-thc full melts I've been seeing...

 

[THC SCIENTIFIC]

Hey the clubs around here have been getting some great bubble hash lately! I wouldn't mind doing some nail cart rips with one of the $25/gram 50%-thc full melts I've been seeing...

Well all testing is good on paper, all calculations work, now time to build it and see what happens.


All parts are custom so it will take a few. Even the heating element is custom.

 

[THC SCIENTIFIC]

Excellent point, you do need to charge 'em and they take a special charger.

Great news on the nail cart. Be cool to finally have 'the big dog' to add to the family....not that I'm all that likely to use it much. Then again very few four wheel drives ever make it off road, do they? I'm just afraid I'll end up needing a Persei to put it on.......

OF

Well they will work on the Ultrafire WF-188, that charger can do lifepo4 and li ion's.

As far as a Big Dog we will see when it is made.

 

[OF]

Well all testing is good on paper, all calculations work, now time to build it and see what happens.

Shouldn't someone pipe up with "If you build it, they will cum"?

Not many straight lines around here, got to take advantage of 'em when they show up you know.....

Well they will work on the Ultrafire WF-188, that charger can do lifepo4 and li ion's.

As far as a Big Dog we will see when it is made.

Excellent point again, there are dual type chargers (in fact I'm using that very one at the moment). Perhaps not the best option for some guys, there are the two configuration switches that could kill a battery or two for you if you goof it up, but a useful option for those that pay attention to such things.

Right behind you on the Big Dog...."take all the time you need to do a good job" as the saying goes. IMO it's worth a little more wait to have it right.

OF

 

[THC SCIENTIFIC]

Shouldn't someone pipe up with "If you build it, they will cum"?

Not many straight lines around here, got to take advantage of 'em when they show up you know.....



Excellent point again, there are dual type chargers (in fact I'm using that very one at the moment). Perhaps not the best option for some guys, there are the two configuration switches that could kill a battery or two for you if you goof it up, but a useful option for those that pay attention to such things.

Right behind you on the Big Dog...."take all the time you need to do a good job" as the saying goes. IMO it's worth a little more wait to have it right.

OF

I know i left the door wide open on that one. Nice.


You know if we get these right, these cartridges will go a year without having any issues, all medical grade parts, and do not believe what everyone else tells you, It is medical grade. Then again all of the parts work wonderful under stress and will last a long time, but what will happen if we combine them, and throw some oil on it? That is the question. Time to hit the nail with the Hammer and do more testing.

 

[OF]

You know if we get these right, these cartridges will go a year without having any issues, all medical grade parts, and do not believe what everyone else tells you, It is medical grade. Then again all of the parts work wonderful under stress and will last a long time, but what will happen if we combine them, and throw some oil on it? That is the question. Time to hit the nail with the Hammer and do more testing.

I don't see it as "if" but rather "when", because I'll never be dealing with the if part. It'll be a done deal or I won't be seeing it. I'm confident you're doing your homework without checking......

I also hear the voice of experience in the reservations. We used to call it 'the Flashlight Syndrome'. You have a flashlight that should work (it even worked well before). You take it to bits, measure proper continuity in the switch, take a working bulb from another flashlight, put in new batteries and you're still in the dark. Things that are 'guaranteed' to work together don't always. It's one of the rules.

Some guys know that I guess, some have yet to learn, most will never have to know personally.

OF

 

[THC SCIENTIFIC]

I don't see it as "if" but rather "when", because I'll never be dealing with the if part. It'll be a done deal or I won't be seeing it. I'm confident you're doing your homework without checking......

I also hear the voice of experience in the reservations. We used to call it 'the Flashlight Syndrome'. You have a flashlight that should work (it even worked well before). You take it to bits, measure proper continuity in the switch, take a working bulb from another flashlight, put in new batteries and you're still in the dark. Things that are 'guaranteed' to work together don't always. It's one of the rules.

Some guys know that I guess, some have yet to learn, most will never have to know personally.

OF

Oh i know its when, but the If part is what keeps me going. I dont like a " I cant do it attitude" So the more i say If i can get it to work, the harder i will make it happen.

 

[OF]

Oh i know its when, but the If part is what keeps me going. I dont like a " I cant do it attitude" So the more i say If i can get it to work, the harder i will make it happen.

Understood. You're trapped with two hats, one Engineer, one Artist. That calls for motivation where you find it. And like that fabled goose, we want those golden eggs.

Please don't change 'the secret recipe', whatever you're doing now is working just fine. Go with it.....

OF