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B -
5
OPERATING INSTRUCTIONS - LIGHT INTENSITY METER BF05
G
5 .. Briefly.press.the.button.
2
;.the.maximum.value.is.dis-
. played ..Briefly.press.the.button.again.to.return.to.the..
. normal.measuring.mode .
6 .. Press.and.hold.the.button.
2
.for.approx ..2.seconds.to.
. switch.between.LUX.and.fc .
7 .. Exceeding.the.measuring.range:.If.the.letters."OL".or..
. "VO".appear.on.the.display,.the.input.signal.is.too.strong..
. (>40.KLux) .
8 .. Take.the.photodetector.away.from.the.light.source.after..
. completion.of.the.measurement .
Spectral sensitivity characteristics:
The.following.diagram.shows.that.the.photodiode.with.fil-
ters.fulfils.the.requirements.of.the.CIE.(International.Com-
mission.on.Illumination),.with.regard.to.spectral.sensitivity.
and.the.photopia.curve.V.(
λ
) .
The. spectral. sensitivity. function. indicates. how. large. the.
number. of. irradiated. photons. must. be. (per. cm². and. se-
cond).at.each.wavelength,.so.that.the.light.is.just.detected ..
The.electric.current.is.set.in.relation.to.the.irradiated.light.
power ..A.value.of.0 .8.or.80%.means.that.20%.of.the.in-
cident.photons.are.lost,.i .e ..make.no.contribution ..Losses.
result,.for.example,.from.reflection.and.absorption .
Summary of Contents for BF05
Page 93: ...o J 3 RUS 02 1 2 MAX LUX fc 3 4 5 x10...
Page 94: ...J 4 o RUS 20k Lu 10 x100 40k Lux 100 2 5 223 4 Lux 4 Lux 4 fc 6 LUX fc MAX 03 1 2 90...
Page 98: ...J 8 o RUS 150 200 750 1500 1500 3000 100 200 300 750 750 1500 Lux 100 300 200 750 500 1500 05...
Page 99: ...o J 9 RUS 9 NEDA 1604 9 6F22 2002 96 EG 27 01 2003 06 LUX fc Low Battery MAX 0 1999...
Page 121: ...o K YTT OHJE VALONVOIMAKKUUDEN MITTAUSLAITE BF05 L 10 FIN L mp tilariip puvuus 0 1 C...