The photometer is designed to measure the concentration of chemical elements in solutions by photometric measurements of the flame of a gas burner, during which the analyzed solution is injected into the sprayed form.

Under the action of the thermal energy of the flame, a radiation spectrum is created that is characteristic of a given element. The spectral line of this element is distinguished by a diffraction grating and is detected by a spectrometric ruler. The processing of current information and control of the photometer is performed by the built-in microcomputer.

A photometer includes a compressor.

It is possible to reconfigure the photometer to measure strontium instead of lithium.