realista
0
- Joined
- Dec 27, 2008
- Messages
- 927
- Points
- 18
hi, i am selling my optotronics pen. i ordered it on august 11 and jack sent me one of the best of the batch.
i sell this nice unit because i would buy in the next future an endeavor NOVALASER pen at 250mw but i am waiting it goes on sale ( now it is 580$... )
it0s a long story, i explain in less time. my order was delayed a lot of times, because there were some problems.... and jack was so a nice guy to repay my confidence choosing the BEST ONE of the new batch arrived.
he measured the power and wrote it in the paper
agerage: 194mw
peak : 227mw
however i tested the pen with the lpm of arayans member.
and we had slithly less power, about 210/215 of peak
and stable power between 170/160 over 30 seconds.... about 45 sec or more. it NEVER go under these average.( so it isn't a real average mw, generally seller say average the power after 20/30 sec in the BEST condition. our measurements is ok also after prolungated use )
......... i need to RETEST it going to arayan's home because i THINK test measurements were lowered by TEMPERATURE. summer temperature.
i emailed jack owever , and he said me that it's possible a 10% of difference using a not perfectly calibrated lpm ( the LASERBEE).
this is part of the email jack sent me:
I only guarantee them to perform above 150mw and you got the best of the batch.
On my meter with brand new alkaline batteries, it averaged 194mw for
the 20-30 second run I did on it. I didn't do longer as much of that
is was actually well above 200mw.
I suspect that the meter used is not a NIST calibrated professional
meter as mine is, so it could be off by 15% or more. Also, local
temperature will affect output power (warmer will usually give less
power) as well as 2nd or 3rd run of a laser that is already still warm
from previous uses.
My guess is that an uncalibrated meter is partially responsible for
the max 200mw reading when I was seeing in the 220's (thats only 10%
difference), the drop in power is most likely due to repeated uses
without enough cooling or a warm room temperature or not using brand
new alkaline batteries
i am shipping FROM ITALY. so....european country are welcome for shipping
thanks to ARAYAN for use its lpm
i sell this nice unit because i would buy in the next future an endeavor NOVALASER pen at 250mw but i am waiting it goes on sale ( now it is 580$... )
it0s a long story, i explain in less time. my order was delayed a lot of times, because there were some problems.... and jack was so a nice guy to repay my confidence choosing the BEST ONE of the new batch arrived.
he measured the power and wrote it in the paper
agerage: 194mw
peak : 227mw
however i tested the pen with the lpm of arayans member.
and we had slithly less power, about 210/215 of peak
and stable power between 170/160 over 30 seconds.... about 45 sec or more. it NEVER go under these average.( so it isn't a real average mw, generally seller say average the power after 20/30 sec in the BEST condition. our measurements is ok also after prolungated use )
......... i need to RETEST it going to arayan's home because i THINK test measurements were lowered by TEMPERATURE. summer temperature.
i emailed jack owever , and he said me that it's possible a 10% of difference using a not perfectly calibrated lpm ( the LASERBEE).
this is part of the email jack sent me:
I only guarantee them to perform above 150mw and you got the best of the batch.
On my meter with brand new alkaline batteries, it averaged 194mw for
the 20-30 second run I did on it. I didn't do longer as much of that
is was actually well above 200mw.
I suspect that the meter used is not a NIST calibrated professional
meter as mine is, so it could be off by 15% or more. Also, local
temperature will affect output power (warmer will usually give less
power) as well as 2nd or 3rd run of a laser that is already still warm
from previous uses.
My guess is that an uncalibrated meter is partially responsible for
the max 200mw reading when I was seeing in the 220's (thats only 10%
difference), the drop in power is most likely due to repeated uses
without enough cooling or a warm room temperature or not using brand
new alkaline batteries
i am shipping FROM ITALY. so....european country are welcome for shipping
thanks to ARAYAN for use its lpm
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