Selecting Ultrasonic Level Sensors

Which Questions Should I Ask Before Buying a level measurement sensor?

​The main questions which need to be considered before selecting a level measurement sensor:

  • What are the contents being measured – liquid, solid, slurry or powder?
  • Are level measurements required either continuous or will point level (discrete) measurements suffice?
  • What are the minimum and maximum temperatures and pressures associated with the application?
  • What is the required level measurement range?
  • What measurement accuracy is required?
  • Is it possible to penetrate the vessel wall to accommodate an insertion level instrument or locate the level instrument inside it?
  • If liquid, is there any turbulence, foam or vapour at the surface?
  • Is an integral display or remote display required?
  • What kind of output / alarms are required eg analogue, relay, etc ?


iCenta is a instrumentation and control solution specialist with experience in control technologies for diverse applications, fluid types and process conditions. Call iCenta now for advice, sales & technical information on 01722 439 880.