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Waterra'-In-Situ's selection of water quality testing equipment is chosen with the demands of field use in mind. We offer a selection of single parameter meters, multi-parameter meters and pocket testers with flow cells, colorimeters, in-line filters and other accessories needed for groundwater and surface water quality testing, sampling and monitoring.

AQUAPlus™ DO-100

AQUAPlus™ DO-200The portable, GPS AquaPlus Optical DO/EC system

The new AquaPlus™ Meter from AQUAREAD™ is the world's most advanced portable Optical Dissolved Oxygen measurement system for field use.
Traditionally, DO measurement in portable field equipment has been done using membrane covered detectors known as Clark Cells. This type of cell suffers from problems including membrane fouling, calibration instability and worst of all, oxygen consumption. During measurement, a Clark Cell will consume oxygen, making it necessary to have a constant flow of water over the cell.
The AquaPlus™ Meter uses optical technology to eliminate all these problems, allowing high precision, membrane-free, long-term stability along with infrequent calibration and immunity to fouling by sulphides and other gases.

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Optical technology
Working in conjunction with the AquaPlus™ Probe, the new AquaPlus™ system is the only portable Optical DO (Optical DO) system currently available which includes direct EC measurement for accurate salinity compensation. Automatic temperature and barometric pressure compensation are also included.

By including direct EC measurement, the AquaPlus™ System has also allowed Resistivity (RES), Total Dissolved Solids (TDS) and Seawater Specific Gravity (SSG) to be calculated. These parameters are all displayed on the AquaPlus™ Meter.

DO-100 features:

  • Lanyard with quick release safety catch for easy hands-free operation
  • Integral atmospheric pressure sensor for fully automatic correction of Dissolved Oxygen readings
  • Tough, high impact, IP67 waterproof case with sure-grip rubber gasket, carefully sculpted to fit the hand
  • Large rubber keypad for ease of use with cold, wet hands or when wearing gloves
    readings can be logged automatically at a pre-determined rate or instantaneously along with calibration data (GLP) by pressing the M+ key
  • Recalling the data is simple — just press the MR key, then browse your readings using the arrow keys
  • Large, high contrast display for perfect readability, backlit in low light conditions with a soft white light
  • For clarity, readings are spread over several easy-to-read screens, each instantly accessible using the left or right arrow keys
  • Extremely simple multilingual operating system. All setup and calibration functions are accessed via the MENU key and navigated with the four arrow keys. At each level there is a simple choice of OK or ESC
  • Rugged,waterproof connector for interfacing with the AquaPlus™ Probe or to a PC using the custom USB cable supplied as standard along with Oxilink™software utility



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