Welcome to Respirometry Plus, an Arthur company that since 1968 has been recognized as the leader in developing respirometers, as well as a wealth of test methods.  The tests, which are known as respirometry are tools for observing metabolic activity in any living system. Respirometry Plus, LLC  offers Two respirometer models THE FULLY AUTOMATED PHASE V MODEL shown is a Single unit in Waterbath, Double units available The fully automated Arthur Respirometer has been sold worldwide to municipalities and industries for over 40 years.  Now we are re-introducing it as our Phase V model with updated electronics, one or two 2-liter sample chambers and a built-in computer with touch screen controls.  Remaining unchanged however, are all of the unique features that enable this respirometer to simulate exactly the activity of a full scale activated sludge plant and provide test results in minutes. Not to be compared with research type respirometers featuring multiple small bottle sample chambers, the Arthur Respirometer tests large, truly representative samples that can be easily observed in clear acrylic 2-liter chambers. This is an operator-friendly instrument that is built to last for many years. THE SIMPLIFIED ARTHUR RESPIROMETER The Simplified Respirometer is a low cost version of the fully automated model.  Although it is less automated, it has all of the important features of the Phase V, and it is just as capable of providing significant information.  The readout of volume of oxygen use is manual, not electronic, thus reducing the cost. A simple, sturdy instrument for many purposes. On the following pages we invite you to explore the capabilities of the two models, the instrument specifications and some of the test methods we have developed. Respirometry Plus is currently searching for distributors in Asian and Latin American countries who are knowledgeable in activated sludge wastewater treatment. CONTACT INFORMATION   Toll Free telephone in USA and Canada:  1-800-328-7518   Outside USA and Canada: 920-922-6970   Fax: 920-922-1085

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