bought one thanks

starlight · Nov 2, 2014

I'm looking for a laser power meter.

I will only buy a complete set up ready to use out of the box. I would like it to have quick read time (don't like the 20-30 seconds for accuracy) and semi portably would be nice.
I need it to read up to 5 watts for my purpose.
Also if there is anything you guys think is important please advise me and submit links if you have something you can contribute.

price I'd like to keep around or under $300 but if more expensive stuff is the way to go that's what I'll buy.

Thank You,
Carl

ARG · Nov 2, 2014

Re: Wanted LPM

If you can't wait for Radiant's new model coming out in very early 2015 I would try and grab an Ophir head. Just hook up a voltmeter and a couple of 9V batteries and it's done.

That or wait until you find a used one. They come up for sale occasionally at your price range. You'll probably be looking at double your price range for a new one.

Reiign · Nov 2, 2014

Re: Wanted LPM

You may aswell buy the ophir head mwacky is selling if you do what arg said. He wants to keep the sale in the US and it is cheap.

BowtieGuy · Nov 2, 2014

Re: Wanted LPM

ARG said:
If you can't wait for Radiant's new model coming out in very early 2015 I would try and grab an Ophir head. Just hook up a voltmeter and a couple of 9V batteries and it's done.

That or wait until you find a used one. They come up for sale occasionally at your price range. You'll probably be looking at double your price range for a new one.

Great advice ARG, as long as you have the Ophir head, you can use the battery and voltmeter approach until you find the system you want.
This is what I use, it's portable, accurate, and will handle most any power you throw at it with proper heatsinking.
Also, if your meter is capable, you can capture average and maximum readings. About the only thing you can't do is datalogging.

ARG · Nov 2, 2014

Re: Wanted LPM

BowtieGuy said:
About the only thing you can't do is datalogging.

http://laserpointerforums.com/f70/introducing-delta-isis-84435.html#post1221604
$19 circuit that fixes that problem

starlight · Nov 2, 2014

Re: Wanted LPM

Thanks guys. I have though about the voltmeter approach many times just have NO idea how to use one as a power meter, what setting etc.

Would the Ophir head do all the work and the voltmeter just give readings?
and the Ophir head needs 9volts to work is all?
What connects where? Does the head have wires for power and readings out the back?

BowTie Guy... is that just a power source in the black box?

Now I remember why I wanted plug and play ...I could ask questions for weeks on any subject .

Sorry for not knowing anything here

Reiign · Nov 2, 2014

Re: Wanted LPM

From what i have seen of these its literally 2 9v batteries hooked up via these connection

I would assume they are run in series so you would connect positive/red off battery number one to negative/black on battery number 2.

Then run the pos/neg left over to the ophir head to power it. Then run the wires from the multimeter to the ophir head.

BowtieGuy · Nov 2, 2014

Re: Wanted LPM

Starlight, basically it's just 2 9v batteries. Here's a pic of the inside of mine, and the circuit that I used to build it.
It's just a radio shack box with a on/off switch, and some jacks for my meter plugs.

The Ophir does come with a 4 wire harness that plugs into the back of the Ophir and attachs as shown in the diagram.

@ ARG - Sorry, I forgot all about the Delta Isis.

The green dots are where I put the on/off switch.

Reiign · Nov 2, 2014

Re: Wanted LPM

ARG said:
http://laserpointerforums.com/f70/introducing-delta-isis-84435.html#post1221604
$19 circuit that fixes that problem

So basically you can buy an ophir head, Power it and run the isis and have a pc readout of your laser? if thats the case that is pretty amazing dude.

ARG · Nov 2, 2014

Re: Wanted LPM

Yup. All the Isis does is convert the analog signal to digital, plus a chip for USB communications.

Reiign · Nov 2, 2014

Re: Wanted LPM

Im getting one of these also lol You need to stop coming up with all this cool stuff im going to be broke again lol

ARG · Nov 2, 2014

Re: Wanted LPM

Reiign said:
Im getting one of these also lol You need to stop coming up with all this cool stuff im going to be broke again lol

Don't sell them anymore, unfortunately. Very few people buy them so it's not practical to build 10 at a time. Once I broke even I stopped selling them, since I would have to ask higher prices if I bought parts in 3x quantities.

Reiign · Nov 2, 2014

Re: Wanted LPM

That sucks. How they didn't sell makes no sense.

And there was this lpm for $60 if you want something untill you figure out exactly what you want.

lpm

starlight · Nov 24, 2014

Re: Wanted LPM

ARG said:
If you can't wait for Radiant's new model coming out in very early 2015 I would try and grab an Ophir head. Just hook up a voltmeter and a couple of 9V batteries and it's done.

That or wait until you find a used one. They come up for sale occasionally at your price range. You'll probably be looking at double your price range for a new one.

Thanks everyone.

ARG after looking around the forum I keep going back and looking at your Rubicon X system. This set up looks like the way to go. Do you still offer the Rubicon X LPM systems? My price range went up .

bandlasing · Nov 24, 2014

Re: Wanted LPM

Wouldn't you have to calibrate the head? Just wondering.

ARG · Nov 24, 2014

Re: Wanted LPM

bandlasing said:
Wouldn't you have to calibrate the head? Just wondering.

Most of the Ophir heads are still within the 3% spec, even after many years in storage.

If the seal on the bag has been broken that's a different story. I've found a couple heads that arrived unsealed and were a bit out of spec.

bought one thanks

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