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Light intensity measuring instrument - testo 540

Light intensity measuring instrument - testo 540

Product catalog summary

Overview: The testo 540 is a pocket-sized Lux meter designed for measuring light intensity, particularly at workplaces. It features a sensor adapted to the spectral sensitivity of the human eye, ensuring accurate readings.

Key Features:

Sensor Adaptation: The sensor is tailored to match the eye's spectral sensitivity, making it ideal for workplace light measurements.
Hold Function: Allows users to comfortably read measurement values.
Max/Min Values: Displays maximum and minimum values at the press of a button.
Portability: Comes with a clip-on protective cap, wrist strap, and belt holder for easy transport and safekeeping.

Technical Specifications:

Measurement Rate: 0.5 seconds
Storage Temperature: -40 to +70 °C
Operating Temperature: 0 to +50 °C
Protection Class: IP40
Battery Type: 2 AAA batteries
Battery Life: Approximately 200 hours without display illumination
Dimensions: 133 x 46 x 25 mm
Weight: 95 g (including batteries and protective cap)
Warranty: 2 years

Measurement Details:

Sensor Type: Silicone photodiode
Measurement Range: 0 to 99,999 Lux
Accuracy: ±3% compared to reference Class B, DIN 5032 Part 7
Resolution: 1 Lux (0 to 19,999 Lux), 10 Lux (remaining range)

Accessories: Includes a protection cap, batteries, and a calibration protocol. An ISO calibration certificate for light is available with calibration points at 0, 500, 1000, 2000, and 4000 Lux.

Catalog excerpts

Light intensity measuring instrument - testo 540-1

Light intensity measuring instrument testo 540 - Pocket-sized Lux meter Sensor adapted to spectral sensitivity of the eye Hold-function and max./min. values Display illumination The sensor in the testo 540 is adapted to the spectral sensitivity of the eye. This makes the testo 540 ideally suited to the measurement of light intensity at workplaces. The hold-function allows the comfortable readout of the measurement values. Max. and min. values are displayed at the press of a button. The clip-on protective cap, wrist strap and belt holder ensure safekeeping of the instrument, testo 540 is very handy, small and easy to operate.

Open the catalog to page 1

Light intensity measuring instrument - testo 540-2

Technical data / Accessories Sensor type Silicone photodiode testo 540 handy Lux meter ind. protection cap, batteries and calibration protocol General technical data Accessories for measuring instrument

Open the catalog to page 2

Light intensity measuring instrument - testo 540

Light intensity measuring instrument - testo 540

Catalog excerpts

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