เครื่องวัดแสง บันทึกค่าแสง Lux meter

เครื่องวัดแสง Professional Light Meter with Datalogger Function and USB Interface รุ่น DT-8809A - บันทึกข้อมูล ต่อเข้า Computer ได้ This is a brand new CEM DT-8809A      

Specifications/Special Features:

• Widest rang to 40,000FC/400,000lux
• Measurement rate:1.5times per second
• Precision instrument used to measure illuminance (lux, footcandle) in the field
• Meet CIE photopic spectral response
• Fully cosine corrected for the angular incidence of light
• Light sensitive component used in the meter is a very stable, long-life silicon photo diode and spectral response filter

 Feature:

• Light-measuring levels ranging: 0.1Lux-0.1kLux/0.01FC-0.01kFC
• High accuracy and rapid response
• Data-hold function for holding measuring values
• Unit and sign display for easy reading
• Automatic zeroing
• Meter corrected for spectral relative efficiency
• Correction factor need not be manually calculated for non-standard light sources
• Short rise and fall times
• Peak-hold function for tracing the peak signal of light pulse with least duration 10?s and keep it
• Capable of selecting measuring mode in Lux or FC scale alternatively
• Auto power off 15minutes or disable AUTO power off
• Maximum and minimum measurements
• Relative reading
• Easy to read large backlit display
• USB output connect with PC
• 4 levels ranging
• 99 values in memory that could be read on the meter
• More than 16,000 values records datalogger

 Specfication:

• Display: 3-3/4 digit LCD with high speed 40 segment bar graph
• Measuring range: 400.0 Lux,4000 Lux, 40.00 KLux and 400.0 KLux /40.00 FC,400.0 FC, 4,000 FC, 40.00 KFC
• NOTE: 1FC=10.76Lux, 1KLux=1,000Lux, 1KFC=1,000FC
• Over range display: LCD will show "OL" symbol
• Spectral response: CIE photopic (CIE human eye response curve)
• Accuracy: ±3% rdg±0.5%f.s.(less than 10,000Lux); ±4% rdg±10d (more than 10,000Lux)
• Repeatability: ±3%
• Sampling rate: 1.3 times/sec of analog bar-graph indication; 1.3times/sec of digital display
• Datalogger sampling could be setup
• Size Meter (HxWxD) : 203mm x 75mm x 50mm
• Size Photo Detector (HxWxD) : 115mm x 60mm x27mm
• Weight: 280g

Accessories: battery

• Gift box with carrying case, USB cable, CD, instruction manual
• 9V