| 摘要 |
automated pump installations feeding water into accumulating reservoirs. SUBSTANCE: water level indicator has body with space, electrode electrically coupled to cable and branch pipe. Branch pipe is joined to hole made in lower face surface of body. Electrode comes in the form of sealed metallized bellows that is electrically insulated from body with the help of sealing insulator and is positioned in its space. Lower end of bellows is located in upper part of branch pipe. Annular groove is formed between internal surface of branch pipe and bellows. EFFECT: increased operational reliability of water level indicator with simultaneous rise of its accuracy. 1 dwg |
