uNIT-LL-MINI Luminance Meter - Display Measurement

This system includes a luminance sensor with an occluder ring for blocking ambient light. Ideal for measuring displays, these sensors are designed with spectral responsivity that matches the human visual system.

Combined with our highly popular S471 portable photometer, the system provides simple and precise measurements.  The package includes a battery charger and necessary connector cables.

Under the UDT Instruments brand, Gamma Scientific manufactures a broad range of precision photometers, radiometers, colorimeters and photosensors for optical measurement application.

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Precision-matched Measurement Solutions

S471 Optical Power Meter

  • High Accuracy Measurements
  • Programmable Average Readings in Low Pass or Boxcar Average
  • High Speed Update Rate
  • Optional USB to Serial Bridge Converter
  • Long Battery Lifetime or Use External Power

265 & 265(M) Photometric Sensor

  • Luminous Intensity Measurements in nit (cd/m2)
  • Luminance Measurements foot-lamberts (fl)
  • Integrated fixed-focus lens for non-contact measurement
  • Standard 82.6 mm or optional ‘mini’ 62.0 mm occluder

S471 OPTICAL POWER METER GENERAL SPECIFICATIONS

Electronic

7 Gains, auto/manual selection

Computer Interfaces

RS-232 or USB

Sample rates

(Display Enabled) > 2 Hz   (Display Disabled) up to 53 Hz

Analog Output Scale

± 1, 2, or 4 VDC

Communication Rate

9600 Baud

Operational Battery Life

32 Hours with backlight off, 24 Hours with backlight on

Operating Temperature

10 to 60° C

Storage Temperature

-20 to 35° C for up to 1 year

External Power Source

12 VDC at 3.3 A or 100-240 VAC 50/60 Hz with supplied power adaptor, 40 W max

Internal Power Source

Rechargeable integral battery pack -- 5 NiMH AA, 1800 mAHr batteries

Calibration Capacity

9 Continuous or 50 single-point

Calibration Traceability

Traceable to NIST with optional ISO/IEC 17025 accredited

Relative Humidity

Up to 99% (non-condensing)

Regulatory Compliance

TUV, UL, CSA, CE

 

265 PHOTOMETRIC SILICON DETECTOR WITH OCCLUDER GENERAL SPECIFICATIONS

CIE V (λ) Function

< f1’   ≤ 3%

Active Area

0.34 cm2

Dynamic Range

1 x 10-3 to 1 x 104 cd/m2

Typical Response

1.1 x 10-9 A / cd / m2 @ 555 nm

Calibration

ISO17025, NIST Traceable

Cable

2 meter, included

Specifications are subject to change without notice.