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Ultrasonic level sensor ULT 1140

Image ULT1140

The ULT 1140 Series level transmitter is a ultrasonic sensor designed to measure distances up to 15 meters.

The working principle of the ultrasonic sensors is based on a sound emission from the sensor and its reflection by an obstacle. Depending on the speed of propagation and time elapsed since the emission, the distance between the sending and the receiving is calculated proportionally. It can be used in liquids and in solids evironments. It also can be used even in very thin structures.

Available with 0-10VDC, 0-5VDC, 1-5VDC, 4-20mA (2, 3 and 4-wire), RS485, RS232 and switch output options.


  • Ultrasonic working principle
  • Contactless and high precision measurement
  • Easy installation
  • Economic and Non-Care Design
  • Analog output options: 0-10VDC, 0-5VDC, 1-5VDC, 4-20mA (2, 3 or 4-wire)
  • Digital output options: RS232, RS485
  • Switch output options: PNP open collector and relay


  • Waste engineering
  • Water treatment and process technology
  • Food Industry
  • Chemical and pharmaceutical ındustry

Order information

Model Range (*) Output Accuracy Sensor process
Power Supply Protection
ULT1140- XX- XX- XX- XXX- XX- XX
02- 0..2 meters I2- 4-20mA (2-wire) E1- 0.25%fs M68- M68x2 male thread S1- 24VDC P5- IP65
05- 0..5 meters I3- 4-20mA (3-wire, standard) E2- 0.5%fs (standard) S2- 220VAC±15%,50Hz P6- IP66
07- 0..7 meters I4- 4-20mA (4-wire) E3- 1%fs P7- IP67
10- 0..10 meters V1- 0-5VDC P8- IP68
15- 0..15 meters V2- 1-5VDC
R1- RS485
R2- RS232
N- NPN Open collector
R- Relay

(*) Custom ranges available

Documents and Files

File Date Size
Ultrasonic level sensor ULT1140 Series datasheet (English) 18-10-2018 1.2MB