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Temperature Coefficient: 0.1 times the applicable accuracy specification
per °C from 0° to 18°C and 28° to 50°C (32° to 64°F and 82° to 122°F)
PEAK Hold Response Time (CA813): > 50ms light pulse
Note: The CIE standard illuminant type A may be obtained by means of CIE
standard type A light source, which is defined as type A gas type filled tung-
sten-filament lamp operating at a correlated color temperature of 2856K.
3.2
General Specifications
Display: 3½ digit LCD with maximum reading of 1999
Over-Range: " " is displayed
Power Source: Standard 9V battery (NEDA 1604, 6LR61 or equivalent)
Battery Life: 200 hours typical with carbon zinc battery
Low Battery Indication: The
drops below the required level
Sample Rate: 2.5 times per second, nominal
Operating Temperature: 32° to 122°F (0° to 50°C) at < 80% RH
Storage Temperature:
-4° to 140°F (-20° to 60°C), 0 to 80% RH with battery removed
Accuracy: Stated accuracy at 73° ± 9°F (23° ± 5°C), <75% RH
Altitude: 2000m max
Dimensions: 6.81 x 2.38 x 1.5" (173 x 60.5 x 38mm)
Weight: Approx 7.9 oz (224g) including battery
3.3
Safety Specifications
EN 61010-1 (1995-A2), Protection Class III
Overvoltage Category (CAT III, 24V), Pollution Degree 2
Indoor Use
*All specifications are subject to change without notice
Lightmeter Models CA811 and CA813
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is displayed when the battery voltage
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