uLUX-211 Illuminance Meter - General Purpose

This lux meter system combines a high-performance photopic sensor with an optical diffuser to provide simple and accurate measurement of illuminance in units of lux. The system includes a model S471 portable photometer, model 211 illuminance photometric sensor with diffuser, 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

211 Photometric Sensor

  • Spectral Responsivity Matching that of the Human Eye
  • Integrated Cosine Filter to Reduce Directional Sensitivity
  • Illuminance Measurements (lux and fc)
  • Dynamic Range from 1 x 10-2 to 5 x 105 lux

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

 

211 PHOTOMETRIC SILICON DETECTOR GENERAL SPECIFICATIONS

CIE V (λ) Function

< f1’   ≤ 3%

Active Area

1 cm2

Dynamic Range (1)

1 x 10-2 to 5 x 105 lux

Typical Response (1)

3.2 x 10-9 A / lux @ 555 nm

Calibration

ISO17025, NIST Traceable

Cable

2 meter, included

(1) Stand alone with cosine receptor.  Value may differ when used with cosine receptor removed.

Specifications are subject to change without notice.