HyQuest Solutions Water Level Sensing ...

HyQuest Solutions Water Level Sensing Systems HS40 Series II

Supplier: KISTERS Instruments Pty Ltd

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.

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The basic system consists of:

Air compressor
2 litre receiving tank
Advanced membrane filter dryer
Micro mist separator with an auto purge valve
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 –40^oC to 80^oC)

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.

Specifications:

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).
Mass 24kg.
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