Technical Data
CompareTotal Solids / Total Suspended Solids
| Measuring Principle | Single beam scattered light |
| Application | Turbidity measurement in: Drinking and process water Saline water Utilities of all industries |
| Installation | Inline Insitu, sensor with clamp, flow cell, sensor with clamp, retractables, sensor straight, immersion in open channels |
| Design | 40 mm sensor |
| Dimension | 40 mm design, hygienic Clamp-version 320 x 40 mm |
| Material | Stainless steel version: 1.4404 Plastic version: sensor head: PEEK, shaft: PPS Optical windows: sapphire O-rings: EPDM |
| Measuring range | 0.000 to 4000 FNU |
| Process pressure | Stainles steel version: 0.5 to 10 bar abs (7.3 to 145 psi abs) Plastic version: 0.5 to 6 bar abs (7.3 to 87 psi abs) |
| Ingress protection | IP68 |
| Output / communication | Memosens |
Turbidity
| Measuring Principle | Single beam scattered light |
| Application | Turbidity measurement in: Drinking and process water Saline water Utilities of all industries |
| Installation | Inline Insitu, sensor with clamp, flow cell, sensor with clamp, retractables, sensor straight, immersion in open channels |
| Measuring range | 0.000 to 4000 FNU |
| Measuring principle | Nephelometric turbidity sensor (90° scattering) according to ISO7027 |
| Design | 40 mm sensor |
| Material | Stainless steel version: 1.4404 Plastic version: sensor head: PEEK, shaft: PPS Optical windows: sapphire O-rings: EPDM |
| Dimension | 40 mm design, hygienic Clamp-version 320 x 40 mm |
| Process temperature | Stainless steel version: -20 to 85 °C (0 to 185 °F) Plastic version: -20 to 60°C (-4 to 140 °F) |
| Process pressure | Stainles steel version: 0.5 to 10 bar abs (7.3 to 145 psi abs) Plastic version: 0.5 to 6 bar abs (7.3 to 87 psi abs) |
| Temperature sensor | Stainless steel version:-20 to 85 °C (0 to 185 °F) Plastic version: -20 to 60°C (-4 to 140 °F) |
| Ingress protection | IP68 |
| Output / communication | Memosens |
| Certificates, declarations and approvals | ISO 7027 |
The Turbimax CUS52D is an intelligent sensor with laboratory-grade measurement accuracy that allows unattended operation at all measuring points in water production. Its hygienic, self-cleaning design allows direct installation in pipes, saving bypass installation costs and avoiding media loss. Using Memosens digital technology, the Turbimax CUS52D offers maximum process and data integration while being easy to operate, allowing laboratory calibration and simplified predictive maintenance.
Advantages
Even in the low turbidity range, measurement results are identical to laboratory results, ensuring high accuracy and highly reliable online water quality monitoring
Turbidity measurement without media loss: hygienic online measurement saves every drop of water in the process
The intelligent design and reliable, practical installation accessories ensure a highly self-cleaning device and minimal maintenance
Intelligent verification and calibration: absolutely safe, without liquid and without formazin
High flexibility and simple operation: one sensor for all measuring points and all installation environments (inline or immersion)
Improved process control: individually adapts to the sensor response time
Fast commissioning: factory calibration and Memosens technology allow plug-and-play integration into the process
Areas of application
The Turbimax CUS52D can perform the following turbidity measurements:
Drinking water and process water:
- All measuring points from the waterworks inlet to the outlet
- Extraction and raw water control
- All measuring points in the water network
- All quality control points in water production
Wastewater treatment plants:
- Reuse of outlet water (e.g. the 4th cleaning step)
Utilities in all industries:
- All measuring points from inlet to outlet in water production
- All measuring points in the water network
Spare Parts & Accessories 14
14 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| CUY52- | Calibration accessory CUY52Tool for verification and Calibration, CUS52D Solid state reference to verify senor function nearly backscattering-free vessel ::vessels for liquid calibration ::vessels for comparision measurments | Enquire |
| 71241882 | CUS52D: 2x chuck sealFor CUS50D, CUS52D, CUA252 and CUA262 | Details |
| 71242180 | blind coverFor CUS50D, CUS52D, CUA252 and CUA262 | Details |
| 71242201 | clamp ring | Details |
| 71242026 | Air cleaning adapter, CUS52D | Details |
| XPC0031- | CYR51 Spare Parts and ConsumablesSpare and wear parts CYR51 Mechanical cleaning | Enquire |
| 71072583 | *** cleaning unit, 230V air compressor | Details |
| 71194623 | Output Air Purification | Details |
| 71242170 | Defoamer, CUA252 | Details |
| 71247364 | Bubble trap assembly "S" for CUS31 | Details |
| 71093377 | Mounting accessoriesfast sensor assembly | Details |
| 71364586 | CUS52D spare part: deaeration device | Details |
| 71478867 | Kit air cleaning head PVDF/Ti, CUS52D | Details |
| 71248647 | Sensor adapter | Details |
Configurator / Comparison
A
Measuring principle video
Click to playSource:Endress+Hauserwebsite public information
Manuals & Documents 4
All documents for this modelProduct Videos
Case Studies
Municipal Wastewater Treatment · turbidity — Application Case
Project Background
The project covers the inlet, biological and outlet stages of a municipal plant. The work centres on turbidity and the core task is measuring turbidity as an indicator of suspended solids and filtration.
Operating Challenges
The medium and duty are characterised by high solids and corrosive fractions, with large diurnal flow swings, and effluent parameters drift and probes foul with sludge and biofilm. So turbidity cannot be specified generically — it calls for choosing 90° scatter or surface scatter by range, with de-bubbling.
Solution
The Ainstru engineering team worked through the analyser range: selecting as part of a complete water-analysis system. The configuration involves choosing 90° scatter or surface scatter by range, with de-bubbling, with these requirements in view: stable compliance with Grade 1A discharge limits and online data reporting.
Results
Since start-up the system has run steadily; the practical result is backwashing triggered by water quality, saving water while holding quality.
Food & Beverage · turbidity — Application Case
Project Overview
The site is dosing, pasteurising, filling and CIP stages. The customer wanted turbidity properly configured on the existing plant, with the aim of measuring turbidity as an indicator of suspended solids and filtration.
Technical Challenges
What actually causes trouble is syrups, dairy and beverages that scale easily, under strict hygienic requirements, and frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. All of this means the turbidity configuration has to involve choosing 90° scatter or surface scatter by range, with de-bubbling.
Configuration
Supply and installation were organised through the analyser range: selecting as part of a complete water-analysis system. On site this meant choosing 90° scatter or surface scatter by range, with de-bubbling, checked line by line against: food-safety and hygienic design per 3-A / EHEDG.
Performance
After commissioning the outcome is backwashing triggered by water quality, saving water while holding quality, and the readings are now used for process tuning.
Chemical & Pharmaceutical · turbidity — Application Case
Site Conditions
This is a Chemical & Pharmaceutical customer whose plant is at reactors, metering vessels and finished-product tanks. The main task was measuring turbidity as an indicator of suspended solids and filtration.
The Problem
The difficulty lies in highly corrosive media with solvents and crystallisation, partly in explosive atmospheres; at the same time corrosion plus Ex protection shortens instrument life and makes downtime costly. Specification therefore means choosing 90° scatter or surface scatter by range, with de-bubbling.
What We Did
We took a analyser range approach — selecting as part of a complete water-analysis system. Delivery was built around choosing 90° scatter or surface scatter by range, with de-bubbling, with point-by-point checks on: Ex certification and GMP traceability of records.
Operating Outcome
In service the system performs as intended — backwashing triggered by water quality, saving water while holding quality, with routine maintenance falling noticeably.
Power & Energy · turbidity — Application Case
Application Context
boiler feedwater, turbine condensate and FGD/DeNOx systems is a typical Power & Energy duty. The project started from turbidity, focusing on measuring turbidity as an indicator of suspended solids and filtration.
Process Constraints
drift under high temperature and pressure, with very costly unplanned outages, and high temperature and pressure with both steam and saline water only amplify it. The turbidity specification must therefore cover choosing 90° scatter or surface scatter by range, with de-bubbling.
Delivery Approach
Delivery was handled as the analyser range — selecting as part of a complete water-analysis system. Execution centred on choosing 90° scatter or surface scatter by range, with de-bubbling, together with compliance with power-industry codes and unit availability targets.
Field Results
Operation shows the benefit clearly — backwashing triggered by water quality, saving water while holding quality, with confidence in this measuring point improving markedly.
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