Sapsonic Series

SAPsonic is a non-contact type level transmitter for continuous monitoring of free-flowing and non-foaming liquids. Instruments with measuring range of 5m, 8m and 10m are available.


Ultrasonic level transmitters are based on the principle of measuring the ‘time of flight’. The ultrasonic sound pulse is transmitted by a piezo-electric transducer. Ultrasonic sound reflects from the fluid and is detected by the transducer. Time taken to travel by the ultrasonic sound is calculated and converted into distance by the on-board microcontroller.

  • Measuring range :5m, 8m and 10m
  • Universal Power Supply: 24-55 V DC, 19-265 V AC
  • Temperature Compensation
  • 8 Digit LCD indication
  • 4-20 mA current output, RS-485 digital output, 1 SPDT relay output
  • Fixed target suppression to avoid obstacles inside the tank
Mechanical Specifications


  • W: Weatherproof
  • P5: IP-65 Weatherproof Housing

Operating Pressure

  • Atmospheric: 0.9 to 2 bar
  • Sensor: PVDF material

Process Connection (Mounting Arrangement)

  • Threaded Mounting: 2” Custom Built Socket
  • Flanged Mounting: As per specification available in PVDF / PVC flange


  • 1500 gm

Process Temperature

  • Between 0°C to 80°C (For sensor)
  • Between 0°C to 60°C (Electronics)
Electrical Specifications


  • 8 Digit LCD

Input power supply

  • Universal power supply: 18-55 V DC, 90-265 AC


  •       Analog: 4-20 mA
  •       22mA Error Indication
  •       Digital: RS-485
  •       Switching: One potential free relay (Single point / pump control logic)

Power Consumption

  •       Max. 135mA at 18 V DC.
Applications Specifications

Measurement Range

  • 0.35m – 5m
  • 0.35m – 8m
  • 0.40m – 10m

Operating Frequency

  •  0.35m – 5m, 8m: 50 Khz
  •  0.5m – 10m: 41Khz

Beam Angle

Switching Indication
  •  2 LED’s
  •  Red: Alarm, Green: Normal