Technical Data
CompareConcentration
| Measuring Principle | NIR absorbance |
| Application | Suspended solids measurement, product interface detection, milk detection, produkt loss detection |
| Characteristic | VIS/NIR absorption |
| Measuring range | 0 to 3 AU 0 to 6 OD (depending on optical path length) |
| Design | Glassfree, hygienic sensor |
| Material | Sensor head: FEP Sensor body: stainless steel 316L O-Ring: EPDM |
| Process temperature | 0 to 90 °C (32 to 194 °F) continuous Max. 130 °C (266 °F) for 2 hours |
| Process pressure | Max. 10 bar abs at 20 °C (Max. 150 psi at 68 °F) |
| Connection | Thread G1 NPT 1" thread Tri-Clamp 2"/2.5"/3" VARIVENT N DN40-125 |
| Ingress protection | IP 67 IP 68 when mounted with CYH112 |
| Certificates, declarations and approvals | FDA, 3-A |
The OUSAF11 is a non-glass sensor for online monitoring of phase changes and suspended solids. When inserted into a pipe or vessel, it reduces your product loss and ensures product purity. You can also use it as an immersion electrode in open basins and channels for efficient wastewater monitoring. Its non-glass, hygienic design guarantees maximum safety of your product. The OUSAF11 can be used in high-temperature and aggressive media and is suitable for all industries.
Benefits
Non-glass hygienic design for maximum media safety
Fast interface detection saves time and reduces media loss
Low sensor maintenance, long service life and stable operation
Flexible sensor installation: insertion (with Tri-Clamp or Varivent connections) and immersion (with CYA112 and CYH112 holders)
Robust sensor housing, resistant to chemical corrosion and contamination
Resistant to CIP and SIP cleaning
FDA and 3-A approval
Applications
The OUSAF11 sensor is used to detect phase separation and suspended solids in the following industries:
Food & beverage:
- Milk detection in CIP processes
- Phase separation detection in dairies and breweries
- Product loss detection in wastewater discharge
Primary industry, mining and metallurgy:
- Suspended solids measurement
Accessories/Spare parts
Measuring principle video
Click to playConfigurator / Comparison
Manuals & Documents 6
All documents for this model
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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