Hey
Looking for a suitable IR-sensor, and I can't seem to be able to get a hold of the recommended TSL261 here in Sweden.
Could this one work?
https://www1.elfa.se/data1/wwwroot/assets/datasheets/s4810_eng_tds.pdf
IR-sensor for pulse counting
Submitted by Guest on Sun, 13/01/2013 - 22:01»
Re: IR-sensor for pulse counting
What about from the shop here?
http://shop.openenergymonitor.com/tsl257-optical-pulse-sensing-kit/
P.
Re: IR-sensor for pulse counting
As far as I can see, it's only for visible light, not IR?
Re: IR-sensor for pulse counting
Have you tried Farnell? They have an office in Sweden don't they?
http://se.farnell.com/taos/tsl261r-lf/photodiode-sensor-l-volts/dp/1182350?Ntt=tsl261
-martin
Re: IR-sensor for pulse counting
As far as I can see, it's only for visible light, not IR?
Nope - it uses a TSL257, and so works with the IR output of Elster (and other) meters.
P.
Re: IR-sensor for pulse counting
I have a TSL257, so I'll try it first, but the spectral responsivity chart in the datasheet shows that at ~900nm it is not as sensitive as in the visible spectra. Might work though, yes, but the TSL261 is only sensitive to IR wavelengths.
Re: IR-sensor for pulse counting
Have you tried Farnell? They have an office in Sweden don't they?
Ah yes maybe you're right, might give that a try :)
Re: IR-sensor for pulse counting
It won't be as good as a proper IR sensor but it should work - or rather, others have said it does. You will need to put lots of black tape over the top though to block the ambient light.
P.