Features: 1.Adopting a detector powered by a silicone photocell with high stability, photostability, and shock resistance, strict vision correction and accurate photometric measurement can be realized. 2.With a wide measuring range, it can measure between 0.01-39990cd/m2 without a dimmer. 3.It is a digital display with good indication reproducibility, data latching and peak value latching functions; 4.With very low power consumption, it can operate continuously for 100 hours on a 9V layer-built battery; 5.Mini light probe, measuring angle <10O; 6.Compact, portable, easy to use. Technical specifications 1.Measuring range: 0.01-39990cd/m Measuring distance ≤1m Object size ≥Ф20, increasing with the increase of measuring distance 2.Precision: ≤+0.5% of the measured value +1 figure 3.Indication error: ≤+0.5% of the measured value +1 figure (relative to NIM standard) 4.Spectrum response characteristics: In accordance with the standard of national grade I illuminometer 5.Linearity error: ≤+0.2% of the measured value +1 figure 6.Temperature characteristics: ≤+0.1% of the measured value +1 figure 7.Operating environment: Temperature: (0-40)0C Relative humidity: ≤85% 8.Dimensions and weight: 149X71X41mm3 9.Power supply:9V layer-built battery (model 6F22) Structure: The instrument consists of a light probe and main body. The two parts are connected with a cord. There are four keys on the front panel of the main body. Their functions are: "ON/OFF": Press this key to turn on/off the instrument "D-H": Press this key to switch between the data sampling state and data retention state "P-H": Press this key to switch between the data sampling state and maximum data retention state "RANG": Press this key to change the measuring range in turn: 0.01-39.99 cd/m2, 0.1-399.9 cd/m2 1-3999 cd/m2, 10-39990 cd/m2
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