RizonSDI® Portable Automatic SDI Monitor

In order to have some measure of the degree of Suspended solids and colloidal materials in feed water, a concept called Silt Density Index is used.  Here a 0.45-micron filter is exposed to the feed water under pressure and filtration rates are calculated.An SDI of less than 5 is considered acceptable for the reverse osmosis systems. 

RizonSDI® Portable Automatic SDI Monitor provides following features:

  1. Quick, easy silt density readings that reduce costly and time-consuming manual methods. Push-button calibrated equipment monitors membranes and water quality.
  2. Automatic flow, Time record, No need for stopwatches, graduated cylinders, calculators and tedious labor
  3. With configuration of rechargeable batteries, superb stand-by time can last up to 25 hours, easily solving field test without Power supply problems.
  4. Booster pump added-on can solve the problem of low site inlet-water pressure or zero pressure.
  5. Power-down protection calendar provides corresponding testing time for each result.
  6. 200 sets of data storage capabilities
  7. Date/Time stamping on every test
  8. Non-volatile memory when the power is down



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