English Arabic Chinese (Simplified) French German Greek Italian Polish Portuguese Russian Spanish
  • This email address is being protected from spambots. You need JavaScript enabled to view it.
  • +44 (0) 161 877 2334

Automatic Silt Density Index (SDI) Test Kit

Accepta's high performance automatic silt density index (SDI) test kit has been specially developed for reverse osmosis plant engineers, water treatment professionals; and building services and facilities management specialists with responsibility for the maintenance and management of reverse osmosis systems.

Accepta's professional auto SDI test kit will allow reverse osmosis plant engineers and water treatment professionals to perform quick and accurate in-field testing and analysis procedures for a range of important RO plant parameters.

Routine silt density index (SDI) measurement can prevent membrane fouling and improve the efficiency of reverse osmosis (RO) systems. The manual SDI method can be time consuming and on occasion prone to errors. By automating the test, Accepta's Auto SDI kit provides an accurate, easy way to perform routine SDI measurements.

Accepta's Auto SDI test kit is compact, light weight and battery-powered. Additionally, our Auto SDI kits portability makes it ideal for trouble­shooting and routine monitoring of multiple RO systems.

Auto SDI features

  • automatic-silt-density-index-test-kit

    Performs SDI 5, 10 and 15 minute tests with both 100ml and 500ml sample size tests – provides useful data that’s impossible to obtain with the manual method. Especially helpful on high SDI waters.
  • Unattended operation. Start the test and return in 15 minutes for the results – saves you time.
  • Real-time display of results including SDI, current flow rate and elapsed time. End of test display includes SDI 5,10 & 15 with 100 ml and 500 ml results.
  • More accurate than hand testing (ASTM D 4189-07) – consistent results provides better information.
  • Battery powered for true portability – conduct tests anywhere.
  • Uses standard 47 mm membrane filters – for lower consumable cost and worldwide availability.
  • Booster pump is an optional component of the standard kit.


Dimensions (mm) Width - 273
Depth - 248
Height - 127
Weight (kg) 3.2 kg
Electrical Battery: 6V 1.3 AH SLA type. 13 hours testing/charge.
Power Supply: 110VAC-9VDC 500ma or 220VAC-9VDC 500ma
Water Pressure: 35-100 psi
Temperature: 35-100°F
Solids: Free of solids. Filter to 50 microns minimum.
Inlet: 1/4” OD tubing.

Technical Support

If you require additional information or specialist technical support concerning our automatic sdi test kit please contact Accepta's technical support team.

Other Related Analysis Products

World Class Expertise

Accepta work with industry worldwide delivering practical, cost effective solutions to resolve complex problems. If you require technical assistance, or information about our water treatment chemicals and other speciality products, please contact our dedicated technical support team on:

+44 (0) 845 519 89 90 or complete our Technical Support form.

Expert Training

Develop your skills with our internationally recognised water and wastewater treatment training courses. Delivered by world leading industry experts and designed for engineers, facilities managers and environmental professionals... water treatment training.

Keep upto date with our extensive library of good practice guides, latest research, regulatory updates, news and more... knowledge base.

Custom Chemical Manufacturing

Accepta offer custom chemical manufacturing, specialist toll blending and white label production services for our own water treatment chemicals and client specific formulations to UK and international customers.

To discover how you could benefit from our environmentally sensitive, quality driven chemical manufacturing capabilities please call us on +44 (0) 161 877 2334 or contact us.

International Distributor Opportunities

Accepta's innovative, quality driven customer focused business model creates exciting global supply chain and distributor opportunities for established and ambitious businesses currently active within the water treatment, wastewater treatment and environmental services sectors around the world.

If you are interested in becoming an exclusive international distributor of Accepta water treatment technologies please click here to learn more.