Online SDI15 Sludge Density Index Analyzer For RO System
>>Application
Water treatment plants, wastewater treatment plants,
steel/metallurgy, petroleum/chemicals, power generation,
papermaking, textile/dyeing, brewing, fine chemicals,
pharmaceuticals, coal mining, food & beverage,
electronics/circuitry, electroplating/surface engineering, energy,
seawater desalination, marine vessels, boilers, others.
>>Principle
The analyzer is suitable for online installation and operation, as
well as portable use. Users can choose the installation method
based on field requirements. We recommend online fixed
installation, which aligns with the standard configuration of
automatic SDI analyzers.
During installation of the SDI fouling index analyzer, the sampling
port should be positioned on the pipeline before the reverse
osmosis (RO) system. A common practice involves connecting a tee
joint to the main pipeline, with a valve installed on the sampling
line to control flow. To prevent debris from entering the
analyzer's pipeline, a pipeline filter is recommended. The sampling
tube of the SDI analyzer is connected via an adapter (with direct
or indirect diameter adjustment) downstream of the pipeline filter.
For excessively long sampling lines, install a bypass with an
overflow valve to maintain continuous water flow and prevent
sediment buildup.
The SDI analyzer integrates bypass, venting, and drainage functions
into a single drainage pipe. The drainage pipe (10mm transparent
plastic tubing) should be routed into a drainage trench.
>>Technical Parameter
Specification | Detail |
Measurement range | 0.2～6.67 (SDI 15min) |
Accuracy | ±0.2 (SDI 15min) |
Pre-membrane Pressure | 0.207 MPa |
Display Panel | LCD display with 4 operational and control touch keys |
Sample Container | 150 mL |
Microporous Filter | φ25 mm |
Membrane Specifications | φ25 mm, pore size 0.45 μm ±0.02 μm |
Protection Rating | IP66, NEMA 4X |
