Technical Data
CompareTurbidity
| Measuring Principle | |
| Application | Online continuous monitoring of clean water : - Drinking water - Treated process water |
| Installation | Compact device for bypass-installations. |
| Characteristic | " Versions with white light source " Fast and easy calibration " Complete primary calibration in less than 5 minutes " Verification in seconds " Reduced calibration costs and quick response times thanks to low volume sample chamber " Automatic continuous ultrasonic cleaning (Autoclean)increases cleaning intervals dramatically " Simple modular design " Easy to use and service " Affordable thanks to modular microprocessor based technology " Digital high-speed connections through RS-485 with Modbus Optional Features: " Flow chamber for bubble suppression " Reusable calibration kit |
| Measuring range | 0 - 100 NTU |
| Measuring principle | Turbidity measurement using standardised 90° scattered light method acc. to U.S.EPA180.1 (White Light) |
| Design | The transmitted white light beam is scattered by the solid matter particles in the medium. The scattered light beams are detected by scattered light receivers which are arranged at an angle of 90° to the white light source. |
| Material | Housing: ABS Flow-through head: Nylon Sample cuvette: Borosilicate glass Sample cuvette seal: Silicone Flow-through fittings: Polypropylene Flow-through lock down pins: Stainless steel (AISI 304 or AISI 303) Inlet tube: Stainless steel (AISI 316) |
| Dimension | 347,16 x 207,65 x 196,85 mm (13.66 x 8.17 x 7.75 inches) |
| Process temperature | 1°C - 50°C (34 - 122°F) |
| Process pressure | max. 13.78 bar / 200 psicontrolled by integral pressure regulator |
| Ingress protection | IP66 |
| Output / communication | 4-20mA, galvanic isolated Bi-directional RS-485, Modbus optional. |
Product Overview
The Turbimax CUE22 is a reliable turbidity meter for continuous water turbidity measurement compliant with US EPA 180.1. It is easy to operate: connect the water source, set the parameters and the system runs automatically. The Turbimax CUE22 provides calibration guidance according to preset standards, effectively improving maintenance efficiency. Its automatic ultrasonic cleaning function extends maintenance intervals and saves significant operating costs.
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Advantages
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Extended maintenance intervals and reduced operating costs
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Fast and simple calibration, verification within seconds
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The low-volume sampling chamber reduces calibration costs and speeds up response time
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The automatic ultrasonic cleaning function reduces maintenance workload
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Sampling condition adjustment (including flow and pressure)
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Areas of application
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The Turbimax CUE22 online turbidity meter can be used for:
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Drinking water and process water measurement:
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Process monitoring
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Filter monitoring and filter backwash monitoring in waterworks
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Water quality monitoring in waterworks and supply networks
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Utilities:
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Return lines
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Cooling water monitoring
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The Turbimax CUE22 measures in compliance with US EPA 180.1.
Spare Parts & Accessories 10
10 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 71030104 | CUE22 Electronic ModuleLight source: White light Measuring range: 0 - 100 NTU Spare part turbidity measurement | Details |
| 71030105 | Field junction box CUE21/CUE22Supply voltage: 100-240 VAC Spare part turbidity measurement | Details |
| 51518578 | Desiccant for CUE21/CUE22Refill pack Accessory turbidity measurement | Details |
| 51518579 | Pipe fittings for CUE21/CUE22Accessory turbidity measurement | Details |
| 51518576 | Ultrasonic cleaning glass tube for CUE21/CUE22Accessory turbidity measurement | Details |
| 71030102 | CUE22 calibration fluidReady for use solutions: 0,02 NTU, 10 NTU and 100 NTU. Accessory turbidity measurement | Details |
| 51518575 | Flow-through chamber for CUE21/CUE22for bubble suppression Accessory turbidity measurement | Details |
| 71085512 | *** Pressure Regulator CUE21/22 | Details |
| 71267830 | O-ring | Details |
| 71267825 | *** Flow Cell Flow Regulator | Details |
Configurator / Comparison
Source:Endress+Hauserwebsite public information
Manuals & Documents 2
All documents for this modelCase 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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