Extremely Accurate:
Microprocessor precision plus high resolution flow measurement provides silt density index test accuracy and repeatability far beyond hand testing.
Battery Powered and light weight for true portability : .
Up to 13 hours of testing between charges.
Performs SDI-5, SDI-10 and SDI-15 :
tests in both 100ml and 500ml sample sizes for more meaningful silt density index results and a complete picture of filter plugging.
Standards compliant :
47 mm membranes for lowest cost, worldwide availability. Our membranes meet the new ASTM D4189-07 standard for silt density index testing.
SeaWater Compatible:
Fully non-ferrous water path is compatible with sea water and other corrosive waters.
Continuous flow readout ( mL/ min) :
provides detailed information in real-time of the rate of filter plugging. This data can be used to manually plot Modified Fouling Index ( MFI) -like data.
Built to the ASTM D 4189-07 standard for silt density index testing :
accuracy and repeatability greatly exceed the criteria of the silt density index standard.
Linear, precise pressure regulation:
for accurate results even on high SDI waters. Provides set-it-and-forget-it convenience.
Rugged, durable, reliable. :
Carefully selected components ensure years of trouble-free silt density index testing.
In-field calibration and repair. :
Modular design for easy field repairs. Sensor calibration is easy to perform in the field.
Audible alerts :
notifies the operator at the end of the silt density index test as well as if any errors have occurred.
Clear, easy to read LCD display :
prompts the operator through the test procedure and displays current test data while silt density index tests are underway.

simpleSDI Silt Density Index Tester
Technical Info and Specifications

Dimensions :
Wide: 10.75 ( 273) Deep: 9.75 ( 248) High: 5 ( 127) Inch( mm)
Weight :
5 pounds

Electrical
| Battery Type :
6 Volt, 1.3 AH, Sealed Lead Acid ( SLA)
| Battery Life :
Approximately 5 years of typical usage.
| Battery Capacity :
Approximately 13 hours of testing.
| Power Supply :
110VAC-9VDC 500ma ( U.S.)
220VAC-9VDC 500 ma ( international)

Water Supply Requirements
| Feed Pressure
35 psi ( 2.4 bar) minimum, 100 psi ( 6.9 bar) maximum*
| Minimum flow rate 1.4 Liters per minute at 35 psi at start of test
| Solids Free of large solids. Filter to 50 micron minimum. ( Cleanable 50 micron filter included in kit)
* A booster pump kit is available for use on water supplies with insufficient pressure.

Tests Performed
| SDI-5 SDI-5, 100ml and 500ml sample volumes
| SDI-10 SDI-10, 100ml and 500ml sample volumes
| SDI-15 SDI-15, 100ml and 500ml sample volumes
| Flow measurement Continuous real-time display in mL/ min

Membrane Filter Info
| Polymer Mixed Cellulose Ester ( nitrocellulose)
| Form 47 mm dia disc
| Pore Size 0.45 micron
| Surface/ Color Plain/ White
| Thickness 145 micron
| ASTM D4189-07 Compliant

RoHS Compliance simpleSDI is compliant by exemption
CE Compliance Emission: EN 61000-6-3: 2007
Immunity: EN 61000-6-1: 2007