BL13-TDT Liquid Level Sensor from Autonics

BL13-TDT Liquid Level Sensor from Autonics

BL13-TDT Liquid Level Sensor Features

  • Sensing type : Through-beam type
  • Applicable pipe : Using binding band: Ø6 to 13mm,
  • Using protection bracket: Ø12.7mm (1/2 inch) transparent pipe in 1mm thickness (FEP (fluoroplastic) or with equivalent transparency)
  • Standard sensing target : Liquid in a pipe
  • Light source : Infrared LED(950nm)
  • Response time : Max. 2ms
  • Power supply : 12-24VDC  ±10%(ripple P-P: max. 10%)
  • Operation mode : Light ON/Dark ON(set by button)
  • Control output : NPN open collector


BL13-TDT Liquid Level Sensor Specifications

Sensing typeThrough-beam type
Applicable pipeUsing binding band: Ø6 to 13mm, Using protection bracket: Ø12.7mm (1/2 inch) transparent pipe in 1mm thickness (FEP (fluoroplastic) or with equivalent transparency)
Standard sensing targetLiquid in a pipe
Light sourceInfrared LED(950nm)
Response timeMax. 2ms
Power supply12-24VDC  ±10%(ripple P-P: max. 10%)
Current consumptionMax. 30mA
Operation modeLight ON/Dark ON(set by button)
Control outputNPN open collector
Connection typeCable type(Ø2.5, 1m)
Environment_Ambient illuminationSunlight/Incandescent lamp: Max. 3,000lx for each(received illumination)
Environment_Ambient temperature10 to 55℃, storage: -25 to 65℃
Protection structureIP64
Environment_Ambient humidity35 to 85% RH, storage: 35 to 85% RH
MaterialCase: Polycarbonate
AccessoriesBinding band: 2, Anti-slip tube: 2
WeightApprox. 50g(approx. 13g)
  • This may not detect the liquid with low transparent, with high viscosity, or with floating
  • The weight includes packaging. The weight in parenthesis is for unit only.
  • The temperature or humidity mentioned in Environment indicates a non freezing or condensation.


Download Autonics BL13-TDT Liquid Level Sensor Datasheet


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