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Speci cation
LM82
Light Meter
All specifi ed accuracies are at 23°C ± 5°C, <70% R.H. for 1 year.
Temperature coeffi cient: 0.1 x (specifi ed accuracy) per °C, (0°C to 18°C, 28°C
to 50°C).
Range: 0 to 200k lux, 0 to 18580 fc
Resolution: 1 lux (0 to 19999 lux)
10 lux (20k to 200k lux)
1 fc (0 to 18580 fc)
Note 1
Spectral response: CIE photopic
ƒ
'
Relative spectral response:
< 8%
1
ƒ
Acceptance angle:
<2% cosine corrected (150°)
2
Total accuracy for CIE standard illuminant A (2856K)
± (3% rdg + 10 dgts)
Note 1 The CIE photopic curve is an international standard for the colour
response of the average human eye.
Note 2 The CIE standard illuminant A can be realized by means of CIE
standard source A, which is defi ned as: A gas-fi lled tungsten-fi lament
lamp operating at a correlated colour temperature of 2856K.
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Martindale Electric Company Limited
Metrohm House, Imperial Park, Imperial Way, Watford,
Hertfordshire, WD24 4PP, UK
Tel: +44(0)1923 441717 Fax: +44 (0)1923 446900
E-mail:sales@martindale-electric.co.uk
Website: www.martindale-electric.co.uk
© 2014 Martindale Electric Company Ltd.
Registered in England No. 3387451. E. & O.E. LITLM82 Document Rev1
Note 2
:
03/09/2014 09:51:03
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GENERAL
Display: liquid crystal display
Measurement rate: once per second
Power: 2 x 1.5V, AAA alkaline batteries (IEC LR03, NEDA 24A)
Continuous operating time: 180 hours typical.
Auto power off: after approx. 10 minutes
Low battery indication: This
Dimensions: 132.9(L) x 50.9(W) x 24.7(D) mm
Weight: 116g approx. including batteries
Includes: protective cover, 2 x 1.5V AAA batteries, detachable carry strap and
instructions
ENVIRONMENTAL
Operating environment: 0°C to 50°C at <70% R.H.
Storage environment: -20°C to 50°C, <80% R.H. with batteries removed.
EMC
Conforms to BS EN61326-1
LM82 instructions rev1.indd 5
Speci cation
LM82
Light Meter
is displayed when the battery voltage drops
below the operating level
03/09/2014 09:51
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