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  • 产品名称：LXP-1数据记录照度计

  • 产品型号：LXP-1
  • 产品厂商：COMBINE
  • 产品价格：0
  • 折扣价格：0
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简单介绍：
The digital light meter is a precision instrument used to measure illuminance (Lux, footcandle) in the field. It is meet CIE photopic spectral response. It is fully cosine corrected for the angular in
详情介绍：
The digital light meter is a precision instrument used to measure illuminance (Lux, footcandle) in the field. It is meet CIE photopic spectral response. It is fully cosine corrected for the angular incidence of light. The illuminance meter is compact, tough and easy to handle owing to its construction. The light sensitive component used in the meter is a very stable, long-life silicon photo diode and spectral response filter.

LXP-1 Technical Specifications
 

The most important features of LXP-1 are:
  • Light-measuring levels ranging form 0,1Lx…0,1kLx (0,01FC…0,01kFC).
  • High accuracy and quick time response.
  • „DATA HOLD” function, for holding measured values.
  • Automatic zeroing.
  • Correction factor does not to be manually calculated for non-standard light sources.
  • High sampling rate and quick reaction for changes of illuminance.
  • „PEAK-HOLD” function for tracing the peak signal of light pulse with least duration 10μs and keep it.
  • Auto power off (15 minutes) or disable AUTO power off.
  • Maximum and minimum measurements.
  • Relative reading.
  • Easy to read large backlit display.
  • USB output connect with PC.
  • Four measuring ranges.
  • Memory of 99 measurement result.
  • Data logger for more than 16000 results.


Illuminance measurement
 

Range Spectral
accuracy		 Accuracy
400,0 Lx
40,00 FC		 CIE Vλ Function
f1' ±6%


±(3% m.v. + 0,5% f.s.)
(<10,000 Lx)

 

±(4% m.v. + 10 digits)
(>10,000 Lx)
4000 Lx
400,0 FC
40,00 kLx
4000 FC
400,0 kLx
40,00 kFC

1FC=10,76Lx; 1kLx=1000Lx; 1kFC=1000FC
 

Spectral sensitivity characteristic
The applied photo diode with filters makes that spectral sensitivity characteristic is well suited to the requirements of the C.I.E. curve (INTERNATIONAL COMMISSION ON ILLUMINATION). Photo curve V (λ) as the following chart described.

 
Rated operational conditions:
- operating temperature and humidity    0...40°C  0% to 80% RH
- storage temperature and humidity    -10...50°C  0% to 70% RH
 
 
Other technical data:
- display: 3¾ digit LCD with high speed 40 segment bargraph
- over range indication: 0L displayed
- repeatability: ±3%
- spectral response: CIE photopic (CIE human eye response curve)
- cosine response (f2’): ±2%
- sampling rate: 1,3 times/sec
- power supply: battery 9V
- photo detector: one silicon photo diode and spectral response filter
- photo detector lead length: approx. 150cm
- photo detector dimensions: 115 × 60 × 20mm
- meter dimensions: 170 × 80 × 40mm
- weight: 390g
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