The LI-210R Photometric Sensor measures light with the same sensitivity as a typical human eye. The photometric sensor is ideal for evaluating illumination in work areas, exhibits, interior lighting, and in public spaces. Measurement units are lux or klux.
Absolute Calibration: ± 5% traceable to the U.S. National Institute of Standards and Technology (NIST)
Sensitivity: Typically 30 μA per 100 klux
Linearity: Maximum deviation of 1% up to 100 klux
Response Time: Less than 1 μs (2 m cable terminated into a 604 Ohm load)
Temperature Dependence: ± 0.15% per °C maximum
Cosine Correction: Cosine corrected up to 82° angle of incidence
Azimuth: < ± 1% error over 360° at 45° elevation
Tilt: No error induced from orientation
Operating Temperature Range: −40 °C to 65 °C
Relative Humidity Range: 0% to 100% RH, Non-Condensing
Detector: High stability silicon photovoltaic detector (blue enhanced)
Sensor Housing: Weatherproof anodized aluminum housing with acrylic diffuser and stainless steel hardware; O-ring seal on the sensor base
Size: 2.36 cm Diameter × 3.63 cm (0.93” × 1.43”)
Weight: 24 g head; 60 g base/cable (2 m) with screws
Cable Length: 2 m, 5 m, 15 m, 50 m (6.5’, 16.4’, 49.2’, 164’)
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