Question about my LPM 1

[kingdave2357]

Okay, I bought an Andover Holography LPM 1 from 2007rev a while ago, and I love it! Great meter, has really helped me out, but it has no setting to test either yellow line, or violet. Now 07rev told me a neat little trick of multiplying the result of 405nm tested as 473nm by 2.53 for a ball park estimate. I asked him if there was a similar method for yellow, he reccomended I try testing it at 660nm and 532nm and take the average, but told me to post on the forum incase doing that isnt a good idea, so here I am. My main concern is not to harm the meter. Now all I really need is a ball park estimate, I already know what my new yellow is outputting, but want to keep an eye on it for any power drops and so on...
So any input would be appriciated

 

[lasersbee]

You are not going to harm the meter...
Just make sure to use the ND filter if testing Lasers
higher than 100mW..

If all you want is a reference point to see if the Laser
is still outputting the same power.. just take a reading
on the 532 or 632 setting an note the readingand setting.
That will be your reference... no need to find a correction
factor unless you need to know actual mW output.
Then I would do what was suggested by 2007Rev.

Jerry

 

[kingdave2357]

Okay, Thanks lasersbee, that is a very good idea, record the output from 532nm and/or 633, write down the result, then just check it to see if I get a similar reading from the same wavelength setting in the future
I will deff use the ND filter incase it peaks over 100mW during testing.
Thanks +1 rep