Melles Griot Power Meter Calibration Instructions

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In fact looks like there's no need to buy one, look at the top question here:

https://www.cvimellesgriot.com/compa...uperGroupID=0#

Question: Why can’t I find either the 13 PEM 003 30-W power meter , the 13 PDC 001 universal power meter, or 13 PEM 001/J power meter on your website?
These power meters have been discontinued, however you can contact an application engineer for a manual, service, or any technical questions you may have about these products.

Might be worth a direct contact.

[krazer]

Don't bother with the manual, it does not have calibration instructions. These meters (like all modern meters) are designed as 'send it back to be calibrated once a year', and the calibration instructions aren't given out to mere mortals. You *might* be able to get info out of melles since they don't sell the meters anymore, but I suspect they sold their power meter division a while ago (this series of meters is just as sensitive/responsive/accurate as Coherent's current top of the line system, which has a lower damage threshold on the sensor to boot, so I have to assume that there is a legal/political reason they are discontinued without a replacement).

That said, I always assumed that you just turned the little pot inside of the sensor head to do the calibration, did you try that?

As a side note, we have about 4 of the 2w version and a 50w version in our lab, and these are our favorite meters for general laser work over any of our ohpir/coherent units. One of the best features of these units is that they have a piece of glass in front of the sensor which blocks out mid/far-IR (so you can get microwatt readings without constantly adjusting the 0-point), and the absorber is a solid block of carbon so you can shine a focused pulsed laser on it and all it does is slowly etch into the sensor, as opposed to destroying the absorber like with the films on most other meters.