Ask for a sample or a small pilot. Availability, minimum quantity and sample charges depend on the selected model.
Price & delivery
Range, interface, accessories, quantity and destination affect the quote. Stock, lead time, freight, taxes and delivery terms need confirmation.
Warranty & support
Coverage, duration, exclusions and the fault-assessment process are confirmed for the quoted model before order.
Certificates & documents
Tell us the destination and required standard. We check the exact model, document revision and available evidence; a family listing is not certification.
Public documents describe this product family and selection options. Wiring, register maps and compliance documents must match the model and version selected for your order.
Water & Utilities Hardware Catalog PDF · English · 388 KiB File revision: 2026-07-22 · 82cac85fcd00
Need documents for engineering or purchasing?
Choose what you need. We first identify the model and revision, then confirm which documents can be supplied. The request does not imply that every document is available.
Public now
Public selection guidance and model-selection catalogue
Check for the selected model
Exact-model datasheet · Wiring / pinout · Register map, protocol or sample data · Model-specific certificates · Calibration and measurement evidence · Dimensions / installation drawing
Customer platform or an agreed third-party service
How the model is selected
The written quotation ties the site requirement to one reviewed hardware configuration.
Site requirement
Application, medium, mounting and environment
Hardware configuration
Signal, protocol, power and enclosure
Quote confirmation
Model, quantity, certificates and delivery
Remote integration context
Sensors, interfaces, enclosure, power and mounting are confirmed against the actual project before quotation.
Match the turbidity range, body and cleaning method
The reviewed record contains four hardware types. Range alone is not enough to select the ordered probe.
Selectable ranges are 0–10, 0–100, 0–1000 and 0–4000 NTU. Normal and upset turbidity should stay inside the selected range.
Types A, B and C are specified at ±1% FS. Type D includes a cleaning brush and is specified at ±2% FS with a different power profile.
Types A, B and C resolve 0.01 NTU at or below 10 NTU and 0.1 NTU above 10 NTU. Type D resolution is 0.1 NTU.
Show 3 more reviewed selection notes
The reviewed electrical configuration provides 4-20 mA and RS485 Modbus RTU at the same time, with a one-second response time.
Type C is the pipe-installation option. Type D is the self-cleaning option. Wetted materials vary by type and are listed in the quotation rather than generalized on this page.
The optical window still requires inspection. Colour, bubbles, deposits, flow direction, reflective pipe walls and nearby surfaces can affect installation and data quality.
Model-selection reference
Water & Utilities Hardware Catalog
Compare equipment options in this catalog section.
Select 0–10, 0–100, 0–1000 or 0–4000 NTU from normal and upset levels; then choose Type A, B, C or D from materials, pipe / immersion geometry and cleaning demand.
Use ±1% FS Type A / B / C or ±2% FS Type D deliberately. The Type D cleaning brush changes both the accuracy and power profile.
Review colour, bubbles, deposits, flow direction, reflective surfaces and optical-window access before fixing the probe location.
Confirm the simultaneous 4-20 mA / RS485 Modbus RTU wiring, 7–28 VDC supply, cable length, register map and receiving controller.
Compatible with
PLC, RTU or analyzer accepting simultaneous RS485 Modbus RTU and 4-20 mA
Treatment-water, wastewater and aquaculture monitoring points with defined cleaning access
Immersion, pipe or self-cleaning installation selected from the process and fouling load
4G or Ethernet telemetry gateways after the register map and polling plan are confirmed
Typical package
Selected Type A, B, C or D turbidity probe and NTU range
5 m field cable as the reviewed default
Mounting bracket, pipe hardware or Type D cleaning-brush arrangement when quoted
PLC, RTU, analyzer or telemetry gateway only when listed in the quotation
Wiring, register-map, cleaning, calibration and commissioning notes for the ordered type
Applications
Instruments, enclosure, power and mounting are selected for the actual tank, well, reservoir or pump station.
Use this 860 nm, 90-degree scattered-light probe for continuous turbidity monitoring in treatment water, wastewater, aquaculture and compatible process water. The 0–10, 0–100, 0–1000 and 0–4000 NTU ranges, wetted materials, installation and cleaning option must be selected as one configuration.
Low-range treatment-water turbidity trends using the selected 0–10 or 0–100 NTU range
Wastewater and process-water monitoring using a higher range matched to solids loading
Aquaculture or surface-water points with optical-window cleaning access
Pipe-mounted or self-cleaning installations when the appropriate type is ordered
Choose from 0–10, 0–100, 0–1000 or 0–4000 NTU using both normal and upset conditions. Low-range treatment water and high-solids wastewater should not use the same range by default.
What accuracy and resolution are available?
Types A, B and C are specified at ±1% FS, with 0.01 NTU resolution at or below 10 NTU and 0.1 NTU above 10 NTU. Type D with a cleaning brush is ±2% FS with 0.1 NTU resolution.
Does the turbidity probe support both analog and Modbus output?
Yes. The reviewed electrical configuration provides 4-20 mA and RS485 Modbus RTU simultaneously. Confirm supply, wiring, cable length, register map and the receiving PLC, RTU or analyzer before commissioning.
Is the turbidity sensor maintenance-free?
No. The optical window must be inspected and cleaned. Type D adds a cleaning brush, but brush condition, deposits, calibration and installation geometry still require maintenance review.
What should I provide when requesting a quote for the Online Turbidity Sensor for Water & Wastewater?
Normal, upset and required maximum turbidity range; Water type, colour, bubbles, solids, deposits and expected cleaning interval; Type A / B / C / D, required accuracy, immersion / pipe mounting and wetted-material constraints; Receiving PLC / RTU / analyzer, analog input, RS485 register-map needs and available 7–28 VDC supply
Where can I compare available model options?
Open the Water & Utilities Hardware Catalog linked on this page. Use it to compare equipment options before requesting a configuration.
Will it work with my existing system?
Compatibility is reviewed against your field signals, protocols and upstream platform. Typical pairings include PLC, RTU or analyzer accepting simultaneous RS485 Modbus RTU and 4-20 mA, Treatment-water, wastewater and aquaculture monitoring points with defined cleaning access, Immersion, pipe or self-cleaning installation selected from the process and fouling load.
Product-family reference. Final ordered model and specifications are confirmed in the written quotation.
