IS Liquid Levelling System

The digital IS Liquid Levelling System is an effective tool for precision monitoring of settlements.
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For each project sensors need to be selected with the appropriate measuring range to ensure accurate settlement measurements: the elevation differences need to be within the range, even after the expected settlements.

During installation the sensors are interconnected by means of a pressure line, an air compensation line and a digital data cable.

The elevation changes of the individual sensors in the system are then derived from the liquid pressure. This is done by comparing the liquid pressure at each sensor with the pressure at the reference sensor.

The system responds immediately to settlements, as there is no liquid flow between the sensors. The sensor also directly digitises the measurement data and performs automatic temperature compensation.

As the fully digital system is equipped with a GSM-link, you can retrieve the data from your office PC at any time. You can quickly process, export and graphically display the measurement results on a Windows display.

Product Features
  • High accuracy: 24 bit A/D conversion, full digital transmission
  • Flexible: up to 100 different IS-sensors in 1 network
  • Cost-effective:
  • Fast simple installation
  • Minimal time and effort to frequently read-out so many sensors
  • Easy to repair and to extend (4-wire, colour coded cable)
  • All vital calibration data in the sensor
  • Real-time remote project monitoring
  • Intelligent Sensor Technology




Typical application areas include:

  • monitoring of tunnelling and excavation activities
  • compensation grouting near structures.


IS Liquid Levelling System Datasheet

Click here to download [PDF]

We will soon be bringing you new and improved datasheets, for now, you can still find all the information you need in this downloadable PDF.




Western Australia

Perth Office

209/396 Scarborough Beach Road
Osborne Park
WA 6017


New South Wales

Sydney Office

Unit 137, 18 Buchanan Street
NSW 2041

t: +61 (0) 8 9284 0244
f: +61 (0) 8 9284 0233
  t: 1300 884 542