◈ General
  The dial type level gauge is a float actuated,
purely mechanical instrument utilizing constant spring.
  The instrument is constructed very simply and designed
very compactly so as assure easy mounting and
maintenance.

◈ Operating Principle
  Dial type float level gauge consists of float, measuring tape and indicator unit. The measuring tape connected to the float on a liquid level is directly led into the indicator body and wound on tape drum. The rotation of the tape drum is transmitted through gear trains to the scale dial indicator where pointer is truned on dial scale ti indicate the level.
  The tape drum is connected with constant drum which serves to wind excessive length of the tape caused by level variation, thus the tape tension is always kept constant.

◈ Model Classification and Spercification