Self-Powered Content Level Gauge



These series tank contents gauge require no external power source for operation. The instrument is completely automatic and provide continuous indication of tank contents without the aid of batteries or hand pump. The gauge unit is simply composed of transmitter, capillary tube with flexible stainless steel protector and dial type indicators.


Generally applied to Fresh water, Lub oil, Diesel oil, Heavy fuel oil and Solvent gasoil and other liquid.

Operating Principle

The diaphragm of transmitter is affected of medium column in tank, Which apply pressure to the oil filled capillary, The pressure applied to capillary expand bourdon tube of indicator, so that the indicator display the level corresponding to acuual tank level.


  • Mounting Type : Side Wall Mounting
  • Gauge Size : Dial Ø 150
  • Indication : Height(m) & Volume(m2 )
  • Accuracy : ±1.0% of full scale
  • Operatiog Temp' Range : -20 to 120℃
  • Enclosure : Weather proof
  • Overload : Min. 120% of full scale
  • Length of Capillary Tube 3M(STD) Other (option)

about company Sunil Instrument co., ltd

34, Sinhisandan 3-ro 88beon-gil, Gangseo-gu, Busan, Korea

  • +82 51 831-1994
  • +82 51 831-2994