The HS40 Series II Gas Purge Compressor Constant Bubble System has been designed to replace conventional nitrogen gas bottle supply to bubble units / gas purge systems, used for measuring water level in dams, rivers, canals and tanks with up to 40 mH2O (130 ft) head.
Bubbler system all built into a single small enclosure.
The system continually monitors the tank pressure and when it falls below 400kPa (58 psi) [±20%], the compressor will start and pump the tank pressure back up to 750kPa (110psi) [±20%].
The HS40 Series II, with the optional inbuilt WL3100 pressure transducer, allows the measurement of water level to an accuracy of ±0.02% F.S. (The WL3100A is an advanced model that allows the fine tuning of the “user factor” relationship between pressure and water level, and is temperature compensated from –40oC to 80oC)
The inbuilt WL3100 / WL3100A have an SDI-12 interface and a 4-20mA interface that can be used at the same time to provide data to 2 separate systems if required.
Power Supply 12V DC nominal
In-built diagnostics using SDI-12
Proven and reliable mechanical switch
Electronics bypass link for continued operation
Industrial strength compressor pump
Auto purge air dryer with maintenance free membrane dryer
2 litre stainless steel tank Maximum Range 0-40mH2O, (with 200 metre maximum length of river line)
Dimensions 405mm(W) x 620mm (H) x 220mm (D).
Operating Temperature Range
-20°C to +70°C (HS40/3100/II).
-40°C to +70°C (HS40/II & HS40/3100A/II).
Sensor Accuracy, the inbuilt WL3100 sensor with full temperature compensation & accuracy of+/-0.02% FS.
Outputs(for WL3100/WL3100A Models)
4-20mA and SDI-12 simultaneously
RS232 (with SDI12/RS232 adaptor part no. SE230) or Dual SDI-12 optional.
Bubble Rate is factory preset at 26 per minute (at the orifice).
Air Dryer Auto purge air dryer (solenoid valve) complete with micro mist separator and membrane dry
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