in-line, online, real-time viscosity & density tracking
|Viscosity Range||0.2 to 300 cP
lower than 0.2 available
|Viscosity Accuracy||0.1 cP below 1 cP
5% of reading (standard)
higher accuracy available
|Density Range||0 – 1.5 g/cc|
|Density Accuracy||0.001 g/cc
higher accuracy available
|Reproducibility||Better than 1% of reading|
|Temperature||Pt1000 (cIass AA)|
|Process Fluid Temperature||-40 up to 200 °C|
|Ambient Temperature||-40 up to 200 °C|
|Pressure Range||up to 30,000 psi|
- The rheonics DVM measures viscosity and density 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 denser the fluid, the lower the resonant frequency. A denser fluid increases the mass loading of the resonator.
- 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 are not affected by flow variations!
|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|
|Conference Paper – A New Sensor for Viscosity and Fluid Density Measurement for Oil Well Drilling Applications|
Viscosity and Fluid Density Measurement for Oil Well Drilling Applications, Published in Sensors and Measuring Systems 2014; 17. ITG/GMA Symposium
|Publications||DVM||Application, Technical Information||publications||application 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 – DVM|
DVM-HPHT Installation and Operating Instructions
|Product Portfolio – SRV, SRD, DVM, DVP|
Overview of the Standard Products – Information on Specifications, Electronics, Communication, Mechanical, Dimensions, Software and installation.
|Datasheets||SRD, DVM, DVP, SRV||Technical Information, Marketing||datasheets||technical-information marketing|
|Datasheet – DVM|
Information on Specifications, Electronics, Communication, Mechanical, Dimensions, Software and installation.