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solarmeter® · 16th October 2005, 12:41 PM

Both meter pics in THIS thread are the regular Model 5.0 Total UV (280-400nm). In the top pic (186.8) it is "hiding" inside it's genuine leather carrying case made from India cows.

The "off brand" meter in another thread reading 500 something to big 1000W+ lamps would be the Euro 315-400nm "UVA" pic. The 5.0 HP meter would read approximately the same 500 ish.

In either case.... subtracting out the "spikes" would of course lower the readings. But the spikes are still there - and they do "count" as part of the readings... regardless of their tanning power or lack of such.

As for "hot spots" I assume you don't mean heat - because you can't "feel" UVR spikes (unless they cause erythema 12-24 hours after exposure).

Maybe someday mercury will be outlawed in vapor lamps, like it already is in car parts and other consumer products. Then there would be no "mercury line" spikes to worry about. The sun doesn't have big UV spikes because it is not an MV lamp. How about "super quiet" Zenon arc lamps haha.

Meantime, suffer the spikes gladly... because they ARE there and they DO excite UV meter photodiodes (and spectralradiometer photomultiplier tubes).

16th October 2005, 12:41 PM	#5 (permalink)
solarmeter® UV Geek Squad Join Date: Nov 2004 Location: Lake St Clair Posts: 3,371	Re: highest output reading ever! Both meter pics in THIS thread are the regular Model 5.0 Total UV (280-400nm). In the top pic (186.8) it is "hiding" inside it's genuine leather carrying case made from India cows. The "off brand" meter in another thread reading 500 something to big 1000W+ lamps would be the Euro 315-400nm "UVA" pic. The 5.0 HP meter would read approximately the same 500 ish. In either case.... subtracting out the "spikes" would of course lower the readings. But the spikes are still there - and they do "count" as part of the readings... regardless of their tanning power or lack of such. As for "hot spots" I assume you don't mean heat - because you can't "feel" UVR spikes (unless they cause erythema 12-24 hours after exposure). Maybe someday mercury will be outlawed in vapor lamps, like it already is in car parts and other consumer products. Then there would be no "mercury line" spikes to worry about. The sun doesn't have big UV spikes because it is not an MV lamp. How about "super quiet" Zenon arc lamps haha. Meantime, suffer the spikes gladly... because they ARE there and they DO excite UV meter photodiodes (and spectralradiometer photomultiplier tubes).