SDI pollution index tester system (FI tester) is supplied to millipore, USA

brand:	millipore
model:	zlfi00001

Product Introduction: millipore SDI pollution index measuring instrument is an original imported manual portable SDI instrument
It is a manual SDI instrument produced by millipore, which is specialized in reverse osmosis system
This SDI measuring instrument is small and reliable Light weight, easy to use, only need to cooperate with a 500ml measuring cylinder and stopwatch for accurate measurement! If you need to know about millipore SDI pollution index tester, please contact Miss Li 13917786334
  Product Description: the millipore SDI pollution index measuring instrument system of the United States consists of a pressure reducing valve, a 47mm membrane exchange filter, a group of SDI special diaphragms and some necessary valves, connecting pipes and connectors
The millipore SDI contamination index meter system also contains a box of mixed cellulose ester (MCE) filter membrane, which fully meets all the requirements of ASTM methods
When using the millipore manual SDI device, you only need to prepare a measuring cylinder and stopwatch to measure the SDI value online
The whole process is convenient, accurate and fast
The warranty period of this product is one year
* measuring cylinder 500ml, minimum scale 5ml * stopwatch accuracy 0
2S * 47mm diameter, 0
45 μ MF millipore mixed cellulose ester filter membrane with pore diameter of M (consumables)
Operating instructions: (1) connect the installed millipore SDI pollution index measuring instrument system to the water source pipeline to be tested
Before connection, it is recommended to open the connection port of SDI measuring instrument to discharge several liters of water, so as to flush out the impurities that may be deposited in the connection port or pipeline, so as not to affect the accuracy of the experimental results
(2) first close the valve on the millipore SDI pollution index measuring instrument system of the United States, and adjust the pressure reducing valve so that the pressure displayed on the pressure gauge is between 2
0-2
2bar (1 bar = 15 psi); SDI value measurement needs to be carried out under constant water pressure
Therefore, please do not move millipore SDI pollution index measuring instrument system during the test, so as not to affect the accuracy of test results
(3) take out the single film with stainless steel flat head tweezers
After complete wetting, place it flat on the support surface of the filter membrane clamp
The mesh face of the membrane must face up
Place the O-ring on the upper part of the fixture and screw on the fixing bolts on the filter membrane fixture by hand
(4) prepare a 500ml measuring cylinder and stopwatch (see "product description" above for specific requirements)
(5) open the water inlet valve of the manual SDI instrument and discharge the bubbles in the fixture until water overflows from the edge of the filter membrane fixture
Close the water inlet valve and continue to tighten the fixing bolts on the fixture to an appropriate extent
(6) put the measuring cylinder under the filter membrane clamp and open the water inlet valve
When water flows out, start timing
The later part of this document is described as "t = 0"
When the effluent reaches 500ml, record the required time t0 (s) and continue to discharge water at the same time
(7) when the time is 5 minutes, measure the time required for 500 ml of water and record the time (unit: s)
(8) when the time is 15 minutes, measure the time required for 500 ml of water and record the time (in seconds)
Calculation method of SDI value: T = 0t0 (s) - 500ml of water under 2 bar pressure t = a min
ta (s) - 500ml of water under 2 bar pressure SDI = 100 * (ta-t0) / ((A-0) * TA) 15min SDI value range: over filtered water: SDI & lt; 0
1 filtered water: 0
5