PR21S and PR21S-T
Inline process refractometers
Accurate results for automatic and continuous process control
The inline process refractometers PR21S and PR21S-T are installed in pipelines of production facilities in order to control and regulate the concentration, mixing and fermentation processes. Thanks to the standardised connections, the measurement devices can be easily installed in pipelines. The measuring chamber is made of stainless steel, the measurement prism consists of scratch-resistant and especially chemical-resistant sapphire and is designed to prevent solids from sticking.
- Determination of the refractive index directly in the line within a range of nD 1.3200–1.5200 and 0–95 %Brix
- Measurement intervals from 3 to 60 seconds selectable
- Automatic temperature compensation (%Brix and freely definable for customer-specific products)
- Integrated sensor for temperature monitoring
- User-defined scales
- Stainless steel measurement chamber that meets all the requirements of the food and pharmaceutical industry, CIP/SIP capable
- Sample prisms, made of scratch-proof and chemical-resistant sapphire
- Cleaning via process cleaning processes
- PR21S-T model can be coupled with water cooling and is suitable for process temperatures up to 120 °C
- Easy connection with process control system or MPC via analogue outputs (0/4-20 mA)
- Display for the visual monitoring is also available
Typical applications for the PR-Series
The process refractometer is the ideal solution for the chemical, petrochemical, automotive, aviation, metal processing, food, sugar, beverage, paper industries as well as wastewater control.
- Characterisation tests in research and development
- Identity test, purity control and concentration determination of raw materials, semi-finished products and end products
- Tracking of chemical processes during production
- Identity test and concentration determination
- Outgoing goods inspection
- Stability test
- Determination of the sugar concentration
- Determination of the sugar concentration in semi-finished products and end products
- Determination of the solids content in solutions
- Determination of the purity in combination with a polarimeter
- Routine analysis with high sample throughput
- Determination of the sugar concentration in juices and alcohol-free beverages
- Determination of the alcohol or extract content in beer, spices, wine or spirits
- Quality control of dairy products
- Sewage water check
For a comprehensive overview of typical applications visit our campus review Refractometer applications.
Model specifications
| PR21S | PR21S-T | |
|---|---|---|
| MEASUREMENT DATA | ||
| SCALES | Refractive index (nD) Concentration of sucrose, glucose, fructose and invert sugar [%Brix], User-defined |
|
| MEASUREMENT RANGE | nD 1.3200–1.5200 0–95 %Brix |
|
| MEASUREMENT ACCURACY | nD ±0.0002 ±0.2 %Brix |
|
| RESOLUTION | nD 0.0001 0.1 %Brix |
|
| MOUNTING | Atline | |
| MEASUREMENT PERIOD | 3–60 s | |
| MEASUREMENT PRISM | Sapphire | |
| LIGHT SOURCE | LED | |
| WAVELENGTH | 589 nm | |
| TEMPERATURE DATA | ||
| TEMPERATURE COMPENSATION | ICUMSA or freely definable | |
| TEMPERATURE MEASUREMENT | With integrated temperature sensor Pt100 | |
| TEMPERATURE MEASUREMENT RANGE | 10–120 °C | |
| TEMP. MEASUREMENT ACCURACY | ±0.2 °C | |
| TEMP. MEASUREMENT RESOLUTION | 0.1 °C | |
| PROCESS TEMPERATURES | 10–60 °C | 10–120 °C |
| AMBIENT TEMPERATURE | 0–60 °C | |
| FURTHER SPECIFICATIONS | ||
| IP CODE | IP65 | |
| OPERATING VOLTAGE | 24 V (18–30 V) | |
| POWER CONSUMPTION (MEASUREMENT OPERATION) | 5 W without display, 6 W with display | |
| DIMENSIONS (W X H X D) | 180 mm x 190 mm x 180 mm | |
| WEIGHT | 3.5 kg | |
| SPECIAL FEATURES | . | Water cooling |
Digital refractometers with peltier temperature control
For more information or to arrange a call from one of the Cea Analytical Team, please complete the contact form below. If your enquiry is urgent, please call us on 1300 552 725.
PR21S and PR21S-T Enquiry
NATIONAL OFFICE
sales@crealt.com.au
accounts@crealt.com.au
service@crealt.com.au
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PHONE
NSW: +61 2 4320 6672
VIC: +61 3 9017 4496
QLD: +61 7 3333 2171
WA: +61 8 6465 4576
NZ: +64 212 372 731