Danfoss liquid level sensor AKS4100U/AKS41-10 level controller product introduction
Danfoss AKS4100 / AKS4100U liquid level sensor
Summary: AKS4100/4100 u liquid level sensor adopts reliable time-domain reflectometer (TDR) technology or guidance radar technology, specially designed for refrigeration system to measure liquid level. AKS4100/4100 u liquid level sensor can be used to measure a variety of different refrigerant container, gas-liquid separator, accumulator, riser level. Output electric signal is 2 wire loop power supply 4-20 ma, which is proportional to the refrigerant liquid level. AKS4100/4100 u cable version is suitable for most of the refrigerant, including ammonia and freon and in addition to the corrosion of carbon dioxide gas/liquid, measure the length from 800 mm to 5000 mm (31.5 in.) (197 in.). AKS4100/4100 u coaxial version design application in co2 system. Also can be used in other commonly used refrigerants. Marine applications use no matter what kind of refrigerant must use AKS4100 / coaxial version of the 4100 u. AKS4100/4100 u cable version must not be used in carbon dioxide system or application of the ship. Dust, foam, gas, boiling liquid level, different thick liquid or different dielectric constant will not undermine the performance of the AKS4100/4100 u. Accumulate in the bottom of the riser of lubricating oil not interfere with the liquid level signal, so there's no need to remove AKS4100/4100 u sensors and discharge of oil in the riser.
Features: s covering a wider measuring length (cable)
S can be applied to all the conventional refrigerant (cable)
S cable version sensor requires less installation and maintenance of the height direction space reserved
S containing lubricating oil in the refrigerant does not affect the measurement accuracy
S when all covered the lubricating oil, do not need to clean up the sensor
S cable compact version of the design for easy installation, easily applied in different length and all kinds of refrigerants
S change liquid dielectric constant will not affect measurement system
S cable version: 5000 mm (5000 in.) length
S two wire loop power supply, transformer without independent. Please note: 4100/4100 AKS u with danfoss EKE instead of sharing power, when 347 level controller connected if the connection and EKE 347 level controller, shall provide 14-30 V dc power supply independently
S human-machine interface display
HMI can provide Chinese operation interface and can be set in mm, cm, m length unit
Technical parameters: voltage 30 V d.c. 14 - minimum/maximum terminal maximum output of 22 mA; Environmental temperature voltage limits: + 80 ℃ and 40 ℃ / 40 ℉ (- / + 176 ℉) : 16-30 V d.c.. - 20 ℃ / + 80 ℃ (176 ℉, 4 ℉ / +) : 14-30 V, dc.
Load: RL [Ω] ((Uext - 14 V) / 20 mA). - the default (3.6 mA) error output as RL [Ω] (22 (Uext - 14 V)/mA). - the default (error output set to 22 mA)
Cable jacket
AKS 4100 PG 13, M20 x 1.5;
Cable specifications 6-8 mm (0.24 to 0.31 in.)
AKS u 1/2 level in 4100. The NPT
Coolant temperature
- 60 ℃ / 100 ℃ (76 ℉) - 76 ℉ /
The environment temperature
- + 40 ℃ / 80 ℃ (40 ℉ - / + 176 ℉)
HMI: - 20 ℃ / + 60 ℃ (140 ℉), 4 ℉ / +
Scope of work pressure
- 1 barg / 100 barg (14.5 psig / 1450 psig)
terminal
0.5 1.5 mm squared (15 ~ 20 AWG)
Protection grade
IP (66/67 ~ NEMA type 4 x)
Mechanical connection
Cable version/coaxial version
AKS 4100:1 "pipe thread. Contains aluminum spacer
AKS 4100 u: delighted many customers in the NPT
refrigerant
The application of the danfoss approved refrigerants
Ammonia - 40 ℃ / + 50 ℃ (40 ℉ - / + 122 ℉)
Carbon dioxide - 50 ℃ / + 15 ℃ (58 ℉ / + 59 ℉) -
Freon R22 48 ℃, 50 ℃ / + 58 ℉ (- / + 118 ℉)
R404A - 50 ℃ / + 15 ℃ (58 ℉ / + 59 ℉) -
R410A - 50 ℃ / + 15 ℃ (58 ℉ / + 59 ℉) -
Everything - 40 ℃ / + 50 ℃ (40 ℉ - / + 122 ℉)
Beyond the scope will affect measurement accuracy
Other freon refrigerant test follow the following rules:
Reference conditions
Dielectric constant
Cable version used in ammonia and freon
Liquid epsilon r > 5.6
Coaxial version is mainly used for carbon dioxide
Liquid epsilon r > 1.3 and application can also be used for ammonia and freon system of the ship
Cold agent
