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Symbols lit besides
Key
ON
10
OFF
10
10
10
the numbers
3
2
2
cd/
m
w/
m
lx
3
2
2
cd/
m
w/
m
lx
3
2
2
cd/
m
w/
m
lx
3
2
2
cd/
m
w/
m
lx
Switches the instrument on and off.
The instrument switches itself off
automatically about 3 minutes after
the ON/OFF key has been pressed.
It is provided with an AUTO
POWER OFF function. The symbol
that is lit indicates that the instru-
ment is taking measurements in
lux. The photometric probe
LP 9221/PHOT for measuring ILLU-
MINANCE is connected to the
instrument.
The symbol that is lit indicates that
the instrument is taking measure-
ments in Watt/m
probe LP 9221/RAD for measuring
IRRADIANCE is connected to the
instrument.
The symbol that is lit indicates that
the instrument is taking measure-
ments in candles per square metre.
A probe for measuring LUMINAN-
CE in cd/m
connected to the instrument.
The symbol that is lit indicates that
the value shown on the display
must be multiplied by 10
– 23 –
ENGLISH
Description
2
. The radiometric
2
, LP 9221/LUM 6, is
3
.
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