Application: Pollution density index SDI value is the characterization of the reverse osmosis system an important indicator of water quality, but the manual SDI test method extremely time consuming, and the work process is very monotonous and error prone. By Simple SDI, the measurement data automatically, accurately, a simple realization of the SDI of daily measurements. Simple SDI small size, light weight, battery-powered. Portable, automatic water system makes troubleshooting and routine monitoring of the ideal tool. Features an Executive SDI5, 10,15 minutes 100m and 500ml of six numerical measurements, it provides the amount of data is to manually SDI method impossible. It is this characteristic is particularly important in the performance of the high SDI values ??measured in the most prominent. (2) without hand operation, press the Start automatically after fifteen minutes after the action outcome - saving you time. 3 Real-time display of test results, including SDI and current velocity and the time spent. Eventually displays 100ml and 500mlSDI5, 10,15 values. 4 microcontrollers than manual measurements (ASTMD4189-95) and more accurate data, provide more useful information. 5 to achieve a truly portable battery-powered, can be measured at any desired place for testing. (Probably use 13 hours per charge) 6. Using standard 47mm filter membrane, which implements worldwide, reduce the cost. Technical parameters Dimensions: 273 x 248 x 127 (mm) Weight: 3.2 kg Battery: 6V 1.3 AH SLA type. Use time: 13 hours Power supply: 220VAC-9VDC 500ma Water pressure: 35 - 100 psi What is SDI? SDI commonly known as sludge density index values. In the water system-especially in the reverse osmosis (RO) system, SDI is widely used to predict of colloidal and particulate matter clogging rate of the RO membrane. As water quality changes frequently. So often require weekly or monthly SDI value detection. SDI is how to calculate? Under water within 15 minutes via SDI instrument when the new 0.45μm filter membrane permeate flow attenuation, SimpleSDI can automatically calculate the water samples SDI values. To ensure the water permeation flow measurement accuracy, SimpleSDI instrument will remain at a constant water pressure 30psi. At the start of the test and the next 10 and 15 minutes, 500mL of water in the samples were collected in the process of measuring the flow rate . SDI values ??(percentage of attenuation per minute) card table and the water particles in the axillary body substances may cause clogging of the membrane level. American Society for Testing and Materials (ASTM) D4189-95 states: 15 minutes for the precise and standardized test requirements SDI value interval. And 5 minutes and 10 minutes just 15 minutes SDI SDI value value (SDI15) estimates. In addition to calculating 15 minutes SDI values, determine water permeate flux attenuation values ??can also be converted from the SDI Another indicator parameters: fouling factor (PF value), PF is determined by the RO membrane fouling degree provides a reference . PF value higher percentage, RO membrane may be clogged particles faster. PF value between 1% to 100%, and 100% means the original film will be completely fouling. Tel :0755 -26433512-803 Mobile: 15813896487 Mr. Guo Shenzhen Quest Technology Co., Ltd. Address: Nanshan District, Shenzhen, Guangdong Building, Room 1702, 17th Floor, Wing