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, Nonflammable HFC and R717 (Ammonia), and differing lengths from 800 mm / 31.5 in. and up to 5000 mm / 197 in. The AKS 4100/4100U coaxial version should always be used for marine applications for all refrigerant types. Dust, foam, vapor, 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.
Features and benefits
- Approved and qualified by Danfoss for refrigeration applications
- One product covering several probe lengths (cable version)
- A single product for all commonly used refrigerants (cable version)
- Cable version requires less top-end clearance for installation and service
- Proven operation with all refrigerants in combination with oil
- No need to clean cable version when fully covered by oil
- The cable version is very compact and easy to handle, ship, install and use with different lengths and refrigerants
- Changes of the liquid dielectric constant (εr) do not affect operation
- 5000 mm / 197 in. probe length with cable version
- 2-wire loop powered; no separate transformer needed