Viscosity Range | 3 to 10,000 cP (standard) 0.5 to 50,000+ cP (available) |
Viscosity Accuracy | 5% of reading (standard) 1% & higher accuracy available |
Reproducibility | Better than 1% of reading |
Temperature | Pt1000 (DIN EN 60751 cIass B) |
Process Fluid Temperature | -40 up to 300 °C (575°F) |
Ambient Temperature | -40 up to 150 °C |
Pressure Range | up to 7,500 psi (500 bar) |
- The rheonics SRV fluid viscometer measures viscosity by means of a torsional resonator, one end of which is immersed in the fluid under test.
- The more viscous the fluid, the higher the mechanical damping of the resonator. By measuring the damping, the product of viscosity and density may be calculated by rheonics’ proprietary algorithms.
- The resonator is both excited and sensed by means of an electromagnetic transducer mounted in the sensor’s body.
- Damping is measured by the rheonics patented sensing and evaluation electronics and stable, high accuracy and repeatable readings are obtained based on rheonics’ proven gated phase-locked loop technology.








Sophisticated, patented 3rd generation electronics drive these sensors and evaluate their response. Ultra-fast and robust electronics, combined with comprehensive computational models, make SRVs one of the fastest and most accurate in the industry. SRV gives real time, accurate viscosity measurements every second and is not affected by flow variations! Embedded temperature sensor gives instantaneous inline fluid temperature.

STCM eliminates the need for bulky and expensive thermal test chambers (climate chambers) for temperature control. It reduces the foot print to the same size as a typical small coffee machine while achieving 10x better stability and uniformity compared to a 100L commercial thermal chamber. It enables fluid analysis with SRV in field and mobile units without compromising data integrity.

Title | Summary | Link | File Category | Products | Tags | Type | document_categories_hfilter | tags_hfilter |
---|---|---|---|---|---|---|---|---|
Manual – EX Installation and Intrinsic Safety | Installation and Intrinsic Safety Installation and intrinsic safety manual for Rheonics sensors types SRV, SRV-FPC, SRD and SRD-FPC | Manuals | SRD, Rheonics Printing Solution (InkSight), SRV | Technical Information | ![]() | manuals | technical-information | |
CAD Model – SRV DIN 11851 | CAD model (Step File) of SRV – DIN 11851 variant | CAD Models | SRV | Technical Information | ![]() | cad-models | technical-information | |
CAD Model – SRV Flange | CAD model (Step File) of SRV – Flange variant | CAD Models | SRV | Technical Information | ![]() | cad-models | technical-information | |
Datasheet – STCM | Information and specifications about SRV and SRD Smart Thermal Control Module | Datasheets & Brochures | SRD, STCM, SRV | Technical Information | ![]() | datasheets | technical-information | |
Article – Flexo+Tief Druck featuring rheonics unique approach to regulate the ink viscosity | Packaging industry focused publication – Flexo+Tief Druck publishes a feature article covering the revolutionary Rheonics ink viscosity monitoring and control system InkSight for flexoprinting , gravure and corrugated packaging printing. | Publications | SRD, Rheonics Printing Solution (InkSight), SRV | Technical Information, Application, Marketing | ![]() | publications | technical-information application marketing | |
Video – Replacing efflux cups with inline viscometers (Viscosity standardization in printing) | Looking beyond efflux cups & cup-seconds to control the largest variable in flexo and gravure printing – the printing viscosity. | Videos | SRD, Rheonics Printing Solution (InkSight), SRV | Application, Marketing | ![]() | videos | application marketing | |
CAD Model – SRV Triclamp | CAD model (Step File) of SRV – Triclamp variant | CAD Models | SRV | Technical Information | ![]() | cad-models | technical-information | |
Certificate – IECEx Quality Assessment Report for SRV & SRD | IECEx Quality Assessment Report Summary | Certificates | SRD, SRV | Technical Information | ![]() | certificates | technical-information | |
Declaration of Conformity – Food Contact Compliance as per US FDA and EU Compliance for SRV & SRD | Rheonics’ Declaration of Conformity for Food Contact Compliance as per US FDA and EU Compliance for SRV & SRD | Certificates | SRD, SRV | Application, Technical Information | ![]() | certificates | application technical-information | |
Declaration of Conformity – CE Declaration of Conformity as per EN 61326-1:2013, EN 61326-2-3:2013 & EN 50581:2012 | Declaration of Conformity for SME-TRD, SME-TR & SME-DRM as per directives – Electromagnetic compatibility (EMC) Directive 2014/30/EU & Restriction of Hazardous Substances in Electrical and Electronic Equipment (RoHS2) Directive 2011/65/EU | Certificates | SRD, DVM, DVP, Electronics, SRV | Technical Information | ![]() | certificates | technical-information | |
Certificate – ATEX Quality Assurance Notification (QAN) – German | ATEX-QAN (Quality Assurance Notification) in German – Requirements according to directive 2014/34/EU have been fulfilled | Certificates | SRD, SRV | Technical Information | ![]() | certificates | technical-information | |
Certificate – ATEX Quality Assurance Notification (QAN) – English | ATEX-QAN (Quality Assurance Notification) in English – Requirements according to directive 2014/34/EU have been fulfilled. | Certificates | SRD, SRV | Technical Information | ![]() | certificates | technical-information | |
Declaration of Conformity – CE Declaration of Conformity according to directive 2014/34/EU (ATEX) for SRV & SRD | Rheonics’ EU Declaration of Conformity according to directive 2014/34/EU (ATEX) and relevant standards for SRV, SRV-FPC, SRD & SRD-FPC | Certificates | SRD, SRV | Technical Information | ![]() | certificates | technical-information | |
Certificate – ATEX Certificate for SRV & SRD | Certificate for Equipment and Protective Systems intended for use in Potentially Explosive Atmosphere – Directive 2014/34/EU | Certificates | SRD, SRV | Technical Information | ![]() | certificates | technical-information | |
Certificate – IECEx Certificate of Conformity for SRV & SRD | This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with the IEC Standards listed in the certificate. | Certificates | SRD, SRV | Technical Information | ![]() | certificates | technical-information | |
CAD Model – SRV NPT | CAD model (Step File) of SRV – NPT variant | CAD Models | SRV | Technical Information | ![]() | cad-models | technical-information | |
Article – Laboratory for Mechanics and Experimental Dynamics, ETH Zurich | ETH Zurich, Laboratory for Mechanics and Experimental Dynamics – Article on Dynamic viscosity and density sensing featuring Rheonics (previously Viscoteers) | Publications | SRD, DVM, DVP, SRV | Technical Information | ![]() | publications | technical-information | |
Manual – SRV | SRV Installation and Operating Instructions | Manuals | SRV | Training | ![]() | manuals | training | |
Product Portfolio – SRV, SRD, DVM, DVP | Overview of the Standard Products – Information on Specifications, Electronics, Communication, Mechanical, Dimensions, Software and installation. | Datasheets & Brochures | SRD, DVM, DVP, SRV | Technical Information, Marketing | ![]() | datasheets | technical-information marketing | |
Datasheet – SRV | Information on Specifications, Electronics, Communication, Mechanical, Dimensions, Software and installation. | Datasheets & Brochures | SRV | Technical Information | ![]() | datasheets | technical-information |
- All
- Printing and Coating
- Industrial Mixing and Grinding
- Food and Beverages
- Energy and Hydrocarbons
- Petrochemicals
- Chemical
- Automotive
- Paper and Packaging
- Life Sciences and Medical
- Pumping and Pipeline
- Marine
- Mining, minerals and metals
Controlling the rheological behaviour of dairy food items to create consistent products – cheese, cream, ice-cream, milk, butter, yogurt
Texture and product consistency are of utmost importance to customer - in manufacturing, viscosity is the correlated parameter to ensure…
Online viscosity monitoring for quality control in emulsions formulation, testing and processing
Emulsions are used in almost every aspect of daily lives. Their processing and development expands across many industries – chemicals,…
Wastewater management in beverage and food processing with inline viscosity monitoring
Food and beverage industry is one of the key industrial segments and major contributor to global economic and societal growth.…
Achieve high quality cosmetic products through real-time in-line viscosity control during manufacturing – improve consistency, texture and sensorial attributes
Viscosity testing of cosmetics and personal care products is extremely important for quality control in their production. Analyzing the viscosity…
High quality Swiss chocolates rely on in-line viscosity monitoring for consistent rheology & texture
The chocolate confectionery industry is a sector that is not restricted by age or nationality; therefore, the growth of this…
Sealants and adhesives viscosity & rheology in formulation, testing and application
Adhesives and sealants are used widely for joining , protecting and sealing systems in construction, manufacturing and maintenance. This industry…
Monitoring and controlling viscosity of ceramic slurries in investment casting
Investment castings are one of the most popular production methods for metal parts today. Investment casting process, also termed as…
Monitoring and controlling viscosity of wire enamel in coating process
The global electrical insulation coatings market size in 2015 was USD 2 billion and is expected to grow significantly in…
Monitoring enteric coating for pharmaceutical products and livestock feed
An enteric (delayed-release) coating is a barrier applied to oral medication that controls the location in the digestive tract where…
Real-time rheology measurements of polymer melts
Polymers have gone from being cheap substitutes for natural products to providing high-quality options for a variety of industrial applications…
Inline viscosity measurements in polymerisation reactions
Polymer production is one of the most important areas of applied chemistry due to its significant number of applications industry…
Tablet coating process control
Film coating of solid oral dosage forms is a well-established process in the pharmaceutical industry. Most tablets dosage forms undergo…
Pharmaceutical printing process control
Product marking has come under increased scrutiny in the pharmaceutical industry due to pressure from three factors: regulations, aesthetics, and…
Mixing Process Management
Mixing is the fundamental step in the manufacture of many products. Even though it may not have strict precision requirements,…
Batter preparation and coating process control
Batters mixes are widely used as a coating for deep-fried foods and in many other products including cakes, waffles, doughnuts,…
Optimizing flexographic, gravure and corrugated printing applications through inline viscosity monitoring and control
Printing presses have numerous applications – newspapers, magazines, catalogues, packaging and labels. The global printing industry is forecast to reach…
Monitoring concrete mixing process
Being one of the most versatile building materials, concrete is used in many forms of construction. Concrete is often used…
Real-time engine oil condition monitoring
One of the largest areas of innovation and R&D in the automobile industry is the engine oil condition monitoring. Rapid…
Yogurt quality control and optimisation
In the food processing industry, manufacturers are looking for two things - taste and texture. Texture is the “feeling” in…
Automotive painting and coating quality control and optimization
Through all the advancement in automotive design and manufacturing over the years, there has been one constant – vehicle’s aesthetics…
Battery production – Slurry Mixing and Coating
Lithium batteries keep both essentials and comfort of modern life running with safety and reliability. They have a long list…