The pulse generator structurally consists of a body and a cover of cylindrical shape connected by four screws. The body material is aluminum alloy, assuring the protection degree against external impact IP *4. The support bracket, made of aluminum alloy by means of which the generator is fastened to the fuel volume meter of fuel dispenser, is connected to the body by screws. The pivot pin made of stainless steel, whereon a thin metal disc is fastened is set into the generator body. **0 small rectangular slots are performed in the disc along the circle at the same distance. The disc plane is located between the receiving and transmitting parts of the opto electronic couple.
Operating conditions of the pulse generator: temperature of **0℃ to plus *0℃, air humidity from *0% to **0% at *5℃.