Liquid level sensors
New levels of flexibility and accuracy
The AKS 4100 liquid level sensor takes you to a whole new level of flexibility and accuracy. With TDR guided radar technology, the sensor is fully adapted to industrial refrigeration – reliable and with high accuracy.
All sensors are easy to install and fully flexible. No on-site calibration is needed, and you can easily adjust the probe length on site.
Product Highlights
- Easy commissioning regardless of liquid level or refrigerant type - including ammonia and CO2
- Available with cable or coaxial (sleeve) tube
- High accuracy
A whole new level of flexibility and accuracy
Learn more about all the benefits of our liquid level sensors in our brochure.
Read brochure
Industrial refrigeration application tool
Want to know more about industrial refrigeration with ammonia? The IR application tool is an interactive PowerPoint slideshow that takes you through all details of a two-stage ammonia plant. By clicking on a specific area of the plant, you will be provided with detailed cut-away drawings and information on the specific valves required. You will also find useful links to technical literature, product animations and videos.
Try the application tool
Product types shown: 1
AKS 4100 / AKS 4100U
The AKS 4100/4100U liquid level sensor is designed specifically to measure liquid levels in a wide range of refrigeration applications.
The AKS 4100/4100U liquid level sensor is based on a proven technology called Time Domain Reflectometry (TDR) or Guided Microwave.
AKS 4100/4100U can be used to measure the liquid level of many different refrigerants in vessels, accumulators, receivers, standpipes, etc. The electrical output is a 2-wired, loop powered 4 – 20 mA output signal, which is proportional to the refrigerant liquid level.
AKS 4100/4100U in a cable version is suitable for HCFC, Non flammable HFC and R717 (Ammonia), and differing lengths from 800 mm / 31.5 in. and up to 5000 mm / 197 in.
The coaxial version of AKS 4100/4100U is designed for use with R744 (CO2 ), HCFC, Non flammable HFC and R717 (Ammonia).
The AKS 4100/4100U coaxial version should always be used for marine applications for all refrigerant types. The AKS 4100/4100U cable version should NOT be used for CO2 or marine applications.
Dust, foam, vapour, agitated surfaces, boiling surfaces, changes in density or in the dielectric constant , εr, for the liquid have no influence on the AKS 4100/4100U performance.
Oil accumulated in the bottom of a standpipe will not disturb the liquid level signal and it is not necessary to remove AKS 4100/4100U for cleaning after oil has been drained out of the standpipe.