Photometer

PARAMETERS

Ranges of illumination levels:

From 1x10-5 to 1x10-1 lux (without luminous flux attenuation);

From 1x10-1 to 100 lux (with luminous flux attenuation);

Basic error, max ± 10% of the measured value;

Data exchange with computer on COM-port;

High-voltage power supply (minus 3 kV ∕ 1 mA) with a voltage divider for the radiation receiver (PMT);

Current stabilizer (0.1 ... 20) mA, designed to power LED radiation sources;

Photometer can be equipped with a radiation detector based on a vacuum device operating in the "photodiode" mode;

Photometer can be equipped with a radiation detector based on a silicon photodiode operating in a "valve" mode.

Photometer is designed to control light intensity. It is completed with radiation detector based on photomultiplier tube corrected under eye visibility curve. The operating modes as well as control of the radiation receiver current and calculation of illumination are carried out by electronic control panel with microcontroller, keyboard and LCD display.

Photometer