KF-Puffin1
Jr. Member
Posts: 58
|
 |
« on: October 23, 2008, 08:36:00 pm » |
|
I am looking for a supplier of parts to make a ammeter......simple i know.......but , i would like a accurate analog ammeter that has a range of 0-50 amps with 1 amp intravals or marks..i have been using my fluke meters with shunts to run in miliamps...but that sucks to be honest...i just dont like it....
if anyone knows where to get the parts or has seen one on the market allready built ....please let me know.
thanks
|
|
|
|
|
Logged
|
There are those that lead , And those who follow. My wife says i must follow , and hold her purse....."sigh"
|
|
|
|
Manta
|
|
« Reply #1 on: October 24, 2008, 11:29:24 am » |
|
Why not buy a 1mA analogue meter and shunt it to whatever Amp range you want ? All you need to know is the internal resistance of the meter. DO NOT try to measure this with an Ohmmeter.
Manta
|
|
|
|
|
Logged
|
Good questions have a sting in the tail.
|
|
|
KF-Puffin1
Jr. Member
Posts: 58
|
|
« Reply #2 on: October 24, 2008, 03:13:29 pm » |
|
Cause i really didnt like useing milliamps all the time im so used to useing my flukes at work in straight amps mode that i allways find myself doing a double or triple look at the meters when in milliamp mode.and its just driving me insane..........and on a lighter note........fluke amp fuses are not cheap from the snap-on truck ill tell you that.Just the other night was checking my resistance on a cell i was working on .and not thinking i grabbed the meter to check my amps on a diffrent cell ,but was not paying attention i guess....32 dollar mistake made.
|
|
|
|
|
Logged
|
There are those that lead , And those who follow. My wife says i must follow , and hold her purse....."sigh"
|
|
|
|
hydrotinkerer
|
|
« Reply #3 on: October 24, 2008, 07:42:29 pm » |
|
Thats the reason I bought a clamp-on inductive. I also put a regular fuse in my meter and I haven't had a problem with it. I don't read amps with it anymore either.
|
|
|
|
|
Logged
|
|
|
|
KF-Puffin1
Jr. Member
Posts: 58
|
|
« Reply #4 on: October 24, 2008, 11:41:54 pm » |
|
yea i was looking at the clamp on meter from fluke but was wondering the acuracy of it around smaller wires and at lower amps like 5-20 amp range.....ill find someone who has one and ask for a demo.
|
|
|
|
|
Logged
|
There are those that lead , And those who follow. My wife says i must follow , and hold her purse....."sigh"
|
|
|
|
Manta
|
|
« Reply #5 on: October 25, 2008, 06:21:25 am » |
|
KF,
I think you are missing my point.
If you get a 1 mA meter (I mean just the meter movement, not a multi-meter) and wire a shunt across it, all you have to do is put it in some kind of box, re-write the scale 1-to-40 ( or what ever you shunt it to ) and you have a single purpose meter. No need to ever worry about reading the wrong scale or being set to the wrong range again. Just don't feed it too many amps.
Manta
|
|
|
|
|
Logged
|
Good questions have a sting in the tail.
|
|
|
|
Manta
|
|
« Reply #6 on: October 25, 2008, 10:03:20 am » |
|
KF, Ignore the above for the time being. There are better ways of doing it. I'll get back to this later. Sorry about that  Manta |
|
|
|
|
Logged
|
Good questions have a sting in the tail.
|
|
|
KF-Puffin1
Jr. Member
Posts: 58
|
|
« Reply #7 on: October 25, 2008, 01:29:43 pm » |
|
ok then .......lol, ill sit here and wait.  |
|
|
|
|
Logged
|
There are those that lead , And those who follow. My wife says i must follow , and hold her purse....."sigh"
|
|
|
|
hydrotinkerer
|
|
« Reply #8 on: October 25, 2008, 06:08:14 pm » |
|
My clamp on inductive is a dual range. It only reads 0-20 or 0-40 amp scale. Therefore its amp reading is pretty accurate. I use it for work in automotive amp draw measurements.
|
|
|
|
|
Logged
|
|
|
|
Trev H
Newbie
Posts: 3
|
|
« Reply #9 on: October 25, 2008, 10:37:04 pm » |
|
KF,
I use a Mini LED Digital Panel Meter made by C+C part no. QP5580 or CX102B.
This meter reads up to 200mV and need a 5V power supply.
The power supply that i use is from Silicon Chip Magazine May 2007 (p46 top48) available as a kit from Jaycar Electronics part no. KC 54463. You can vary the out put from1.3V to 22V at 1Amp depending on input voltage.
I use a 50 Amp shunt that reads 1mV per Amp and the scale on the meter reads down to 0.1 of an amp.
|
|
|
|
|
Logged
|
|
|
|
Justin Frye
Newbie
Posts: 46
|
|
« Reply #10 on: October 26, 2008, 11:46:01 am » |
|
im lookiun on ebay for an amp meter and all ive found so far was for ac. i need dc correct? can someone give me a link to a descent inline one i can use for experimenting with these things? thanks alot
-justin
|
|
|
|
|
Logged
|
|
|
|
KF-Puffin1
Jr. Member
Posts: 58
|
|
« Reply #11 on: October 26, 2008, 07:48:29 pm » |
|
|
|
|
|
|
Logged
|
There are those that lead , And those who follow. My wife says i must follow , and hold her purse....."sigh"
|
|
|
Justin Frye
Newbie
Posts: 46
|
|
« Reply #12 on: October 27, 2008, 08:19:06 pm » |
|
checked it out and thats what i was figuring i needed. how exactly do these things hook up?
-justin
|
|
|
|
|
Logged
|
|
|
|
KF-Puffin1
Jr. Member
Posts: 58
|
|
« Reply #13 on: October 27, 2008, 08:33:02 pm » |
|
they are simple to hook up ...you just install them inline on your B+.
for instance it would wire like this.................battery + to amp gauge in....amp gauge out to shunt......shunt to your + on cell.......or if it does not have a shunt just (B+ to gauge/gauge to cell +)
|
|
|
|
|
Logged
|
There are those that lead , And those who follow. My wife says i must follow , and hold her purse....."sigh"
|
|
|
|
Cowboy
|
|
« Reply #14 on: October 28, 2008, 07:25:53 am » |
|
www.mouser.com for your component needs.
|
|
|
|
|
Logged
|
|
|
|
KF-Puffin1
Jr. Member
Posts: 58
|
|
« Reply #15 on: October 28, 2008, 10:47:28 pm » |
|
COWBOY!!!!!!! Thank you for that link man ...found all kinds of things i want in there.stuff i have been looking for for 2 weeks now.
|
|
|
|
|
Logged
|
There are those that lead , And those who follow. My wife says i must follow , and hold her purse....."sigh"
|
|
|
|
Cowboy
|
|
« Reply #16 on: October 29, 2008, 10:51:47 am » |
|
people also use http://digikey.com/ but I've never gone through them. I've been all Mouser since my local shop stopped selling components several years ago. They're great over the phone too. |
|
|
|
|
Logged
|
|
|
|
wess
Newbie
Posts: 33
|
|
« Reply #17 on: November 02, 2008, 04:46:48 pm » |
|
Try electronic supply stores. (Radio Shack didnt have one) but other electronic parts stores have them. A Velleman 12v 1-30 amp dc panel meter runs $12.50. Some older auto parts stores may have one in the back covered with dust..lol...thats how I got mine & it was only $10 and goes to 60 amps. But most hydroxy generators only go to 20-30 amps.
|
|
|
|
|
Logged
|
|
|
|
Justin Frye
Newbie
Posts: 46
|
|
« Reply #18 on: November 02, 2008, 09:59:25 pm » |
|
ill have to check out the parts store then. theres actually one here close in town that the whole building has dust all over it so im bound to luck up there. haha
-justin
|
|
|
|
|
Logged
|
|
|
|
Jake
Newbie
Posts: 46
|
|
« Reply #19 on: December 23, 2008, 10:35:39 pm » |
|
I got my ammeter on ebay. try typing in tractor ammeter. they have various gauges made for tractors that work great for hho boosters and you can get em for about $10
|
|
|
|
|
Logged
|
Love your enemies - Matt 5-44
|
|
|
H²+O
Jr. Member
Posts: 86
|
|
« Reply #20 on: August 31, 2009, 01:12:12 am » |
|
I was wondering what kind of amp meter i want, a DC Amp meter or a AC Amp meter.
I know the size depends on the cell I want to build (the amps i want to draw from the cell, that i want to see on the meter)
Where is a good place to find a good one? one that actually has a bunch a little lines in it and not
" -30a -15a 0 15a 30a " (like a 50amp or somesuch) know what i'm saying?
thanks!
steve
|
|
|
|
|
Logged
|
|
|
|
|
Tink
|
|
« Reply #21 on: August 31, 2009, 07:03:48 am » |
|
Definatelly get a DC ammeter! that is if you are measuring DC. They are very different. Ebay has the best deals I've seen. I don't know how good the digital ones are but the analog ones work fine.
Tink
|
|
|
|
|
Logged
|
Old Tink proberb: Don't hesitate, just do it!
|
|
|
|
|
biggy boy
Newbie
Posts: 22
|
|
« Reply #23 on: August 31, 2009, 07:28:21 pm » |
|
200MV= 200 milivolts.
There is 1000 milivolts in 1 volt
So 200MV is less then a quarter of a Volt.
Glen
|
|
|
|
|
Logged
|
2001 GMC Sierra 4.8 V8
|
|
|
H²+O
Jr. Member
Posts: 86
|
|
« Reply #24 on: August 31, 2009, 09:42:16 pm » |
|
yeah thanks for telling me what a MV is  . now why does the add even say that it has 200mv? I have a couple guesses so tell me if i'm wrong.. 1st guess, the MV has something to do with the accuracy of the reading. 2nd guess, the MV is how many volts (aka: not very many) in order to power it. let me know Thankyou! steve |
|
|
|
|
Logged
|
|
|
|
|
Bob
|
|
« Reply #25 on: September 01, 2009, 04:51:46 pm » |
|
Well electricity is interesting stuff... you can have 50 amps and no (zero) volts and you will not have any power.... but with even a very tiny amount of voltage you will have power to do work.
I am guessing it needs 200MV to power the movement in the meter is all...
...
MANTA:
lots of talk here about shunts and stuff... How do you make a shunt for a meter...?
say I have a 1~500 MA meter and I want to read 1 to 50 AMPS on it .... how do I make a shunt for that ?
.... do you feel like being the teacher tonight ?...AGAIN? <GRIN>
thanks !
...
Bob..........
|
|
|
|
|
Logged
|
"Mother always told me "Son the Imposable is only a little bit harder"...and You know ... She WAS RIGHT!"
|
|
|
|
