Measurement target
Identify suspended solids, mixed-liquor suspended solids or concentrated sludge and state the process point.
SS / MLSS · Online optical measurement
Select suspended-solids and sludge-concentration measurement by process and range
PSS-800 and PSS-600 now have independent records built from their supplied sheets. Both support continuous monitoring, but their ranges, accuracy, dimensions and recommended process fit are different.
2verified product detail pages
0.01 mg/Llowest documented start
120000 mg/Lhighest documented range
9real project records
01 · Start with the target
Confirm SS, MLSS or sludge concentration first
The same mg/L value represents very different conditions in an aeration basin, return sludge, plant outlet or industrial discharge. Particle distribution, bubbles, velocity and cleaning must be confirmed together.
Minimum, normal and peak
Provide minimum, normal, peak and alarm mg/L—not a single design value.
Homogeneity and mounting
Confirm sludge homogeneity, bubbles, settling, pressure, velocity, immersion depth and mounting space.
Maintenance and interface
Confirm automatic cleaning, material, maintenance interval, cable, 4–20 mA, relays and RS485.
02 · Model architecture
PSS-800 wide range + PSS-600 compact sensor
Each page retains its own range, accuracy, dimensions, material, protection and interface evidence.
Wide-range optical analyzerPSS-800Wide-Range Suspended Solids / Sludge Analyzer
The broadest documented concentration coverage in the two-model PSS family, using combined infrared absorption and dual-beam scattered-light measurement with standard or seawater construction.
0.01–120000 mg/L±5% of reading≤2.5 m/s
Compact optical analyzerPSS-600Suspended Solids / Sludge Analyzer
A slimmer SUS316L optical sensor for wastewater process, plant outlet, municipal-network and industrial suspended-solids monitoring up to 50000 mg/L.
0.01–1000 / 100–50000 mg/L±10% or ±10 mg/LØ49 × 230.5 mm
03 · Applications
Nine real suspended-solids and sludge projects
Public images remove the original Chinese information panels and third-party branding. All English-site case copy is searchable English.
View full cases↗
2020 · Zhao’an, Zhangzhou, Fujian, ChinaChengxi wastewater plant online monitoring upgrade
In December 2020, online analyzers were installed for continuous wastewater monitoring, including suspended solids / sludge concentration alongside organic and nutrient parameters and dissolved oxygen.
Monitored parametersSuspended solids / sludgeCOD / organic loadAmmonia nitrogenTotal phosphorusTotal nitrogenDissolved oxygenLiquid level
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2019 · Ningde, Fujian, China24-hour urban drainage-channel water-quality monitoring
In November 2019, water was pumped to a bank-side station where a multiparameter controller combined transparency, suspended solids and other sensors for continuous monitoring.
Monitored parametersSuspended solidsTransparencyTotal phosphorusAmmonia nitrogenMultiparameter station
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2019 · Baoding, Hebei, ChinaHancunhe wastewater plant capacity upgrade
In May 2019, continuous analyzers were installed for dissolved oxygen, ORP and suspended solids / sludge concentration to support process operation and outlet compliance.
Monitored parametersSuspended solids / sludgeDissolved oxygenORP
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2021–2024 · Linyi, Shandong, ChinaRecurring industrial wastewater monitoring service
From 2021 through 2024, repeated project deliveries combined automatic sampling and online analysis for key wastewater indicators, including suspended solids.
Monitored parametersSuspended solidsCODcrTotal phosphorusAutomatic sampling
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2023 · Bengbu, Anhui, ChinaHuai River flood-control hub water-quality station
In November 2023, high-accuracy instruments were installed at key locations and linked through data acquisition to an automation center for real-time water-quality observation.
Monitored parametersSuspended solidsPermanganate indexAutomatic station
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2017 · Meishan, Sichuan, ChinaMeishan municipal wastewater plant upgrade
In October 2017, online dissolved-oxygen and suspended-solids / sludge-concentration analyzers were installed to record key process changes continuously.
Monitored parametersSuspended solids / sludgeDissolved oxygen
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2021 · Fengxiang, Shaanxi, ChinaWastewater plant influent and effluent monitoring
In December 2021, online analyzers were installed at plant influent and outlet points to measure, analyze and transmit the principal water-quality indicators.
Monitored parametersSuspended solids / sludgepHAutomatic samplingData acquisition
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2021 · ChinaCoal-mine wastewater discharge monitoring
In May 2021, an automatic pollution-source monitoring system was installed at the discharge outlet to track treated wastewater conditions continuously.
Monitored parametersSuspended solidsCODcrAmmonia nitrogenAutomatic sampling
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2021 · Wuzhishan, Hainan, ChinaRural wastewater influent monitoring in Wuzhishan
In July 2021, online water-quality instruments were installed at the wastewater-treatment influent to collect, monitor and transmit changing inlet conditions continuously, with early warning when measurements exceeded control limits.
Monitored parametersSuspended solids / sludgeTotal phosphorusAutomatic samplingData acquisition and transmission
↗04 · Common questions
Confirm this information before an inquiry
How should I choose PSS-800 or PSS-600?+
Start with PSS-800 for high-concentration or very wide-range duty. Compare PSS-600 when a slimmer sensor fits the installation and the range remains within its documented limits.
Can I select only by maximum range?+
No. Normal value, particle homogeneity, bubbles, pressure, velocity, cleaning and mounting structure also matter.
Do both products have the same outputs?+
Both supplied sheets list three 4–20 mA outputs, three relays and Modbus RS485, but final project wiring remains subject to order confirmation.
Can the images replace technical drawings?+
No. The clean images are for consistent public presentation. Dimensions and accessories come from the verified specifications and project confirmation.
Contact FUNEL
Tell us what you need to measure.
We will respond with a recommended configuration, supporting documentation and quotation.