Inline viscometer:
L-Vis
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- Reduces the required lab measurements and increases your throughput
- Best-in-class inline analysis of shear-dependent samples
- Unaffected by pressure drops and changes in flow speed
- Also available as an Ex-version for hazardous areas
- Best-in-class inline analysis of shear-dependent samples
- Reduces the required lab measurements & increases your throughput
- For samples like sanitary ceramic, shampoos, viscose, and dough
- Built-in operating terminal for efficient handling with the instrument
The L-Vis inline viscometry solution combines unique inline process technology with the know-how of the world leader in lab rheology. Applying the lowest shear rates allows for best-in-class correlation of results with your lab instruments. The L-Vis sensors stand for reliable inline measurement, especially for samples with shear-dependent behavior – such as sanitary ceramic, shampoos, viscose, and dough – resulting in higher product quality and reducing the time required for analysis in the laboratory. L-Vis 520 Ex is Ex-certified for use in hazardous areas and therefore ideal for inline viscosity measurements on petroleum products, resins, adhesives, and glycol.
Key features
Bringing lab measurement inline
- Higher product throughput: The number of lab measurements can be reduced from once per hour to once per day.
- Increased output product quality: Ceramic’s waste, for example, can be reduced by 20 % as continuous inline measurement helps avoid laboratory-related sample preparation issues such as the influence of ambient conditions or read-off errors.
- Reliable inline performance: Being the leading supplier for lab rheology instruments, Anton Paar’s expertise ensures an excellent correlation between inline sensors and lab instruments under a wide variety of operating conditions.
- Adjustable shear rates allow for further improving the lab-to-process correlation by adapting shear rates in such a way that they are closer to those of lab instruments.
Best-in-class analysis of shear-dependent samples
- Get more meaningful and detailed information on your sample’s properties by applying low shear rates down to 10 s-1. Measure, for example, shear-thinning polymer solutions in their low-shear plateau rather than in the shear-bending area.
- Accurately track varying flow behavior throughout different process steps by choosing between three different rotation speeds.
- The influence of temperature variations is minimized due to temperature-compensated viscosity values.
Rely on results, even under harsh process conditions
- The instrument can be installed directly in the product flow.
- Pressure drops and changes of flow velocity up to 2 m/s do not influence the measurement.
- External forces, such as bearing and sealing frictions, do not influence the measurement result.
- Measurements of inhomogeneous fluids and suspensions can be performed, maintaining excellent repeatability.
Various process installation and communication possibilities
- L-Vis can be installed in a stirred tank, in the main line, and in a bypass line. The innovative measuring principle always forces a proper sample exchange.
- Multiple spool pieces and process connections make the installation as easy as possible.
- All relevant fieldbuses as well as an analog 4-20 mA signal are available to ensure communication to your PLC/DCS.
Technical specifications
| L-Vis 510 | L-Vis 520 Ex | |
| Measurement principle | Dynamic fluid pressure | Dynamic fluid pressure |
| Viscosity | ||
| Measuring range | 1 mPa.s to 50,000 mPa.s | 1 mPa.s to 50,000 mPa.s |
| Typical accuracy | 1 % | 1 % |
| Typical repeatability | 0.5 % | 0.5 % |
| Conditions | ||
| Process temperature range | -5 °C to +200 °C | -5 °C to +195 °C |
| Ambient temperature | -20 °C to +40 °C | -20 °C to +40 °C |
| Process pressure range | 0 bara to 25 bara | 0 bara to 25 bara |
| Housing | ||
| Material | Stainless Steel, anodized aluminum | Stainless Steel, anodized aluminum |
| Dimensions (L x W x H) | 420 mm x 200 mm x 180 mm | 400 mm x 200 mm x 240 mm |
| Weight | approx. 12 kg | approx. 13 kg |
| Flange type | L-Vis process flange DN60 with welding set | L-Vis process flange DN60 with welding set |
| Sensor | ||
| Wetted parts | Stainless Steel No. 1.4542, diamond-coated SiC seal, Viton O-ring seal | Stainless Steel No. 1.4542, diamond-coated SiC seal, Viton O-ring seal |
| Installation dimensions | min. 130 mm x min. 100 mm (L x Ø) | min. 130 mm x min. 100 mm (L x Ø) |
| Installation | Inline, bypass, tank | Inline, bypass, tank |
| Installation orientation | Horizontal and vertical | Horizontal |
| Sealing | Single mechanical seal | Double mechanical seal with a buffer fluid |
| Operating terminal | ||
| Display | 35 mm x 60 mm display incl. optical pushbuttons | 35 mm x 60 mm display incl. optical pushbuttons |
| Analog/digital communication | ||
| Analog output | 2 x 4 to 20 mA | 2 x 4 to 20 mA |
| Digital output | 1 x | 1 x |
| Digital input | 1 x | 1 x |
| Fieldbus communication | PROFIBUS DP, PROFINET, Modbus TCP, EtherNet/IP, DeviceNet | PROFIBUS DP, PROFINET, Modbus TCP, EtherNet/IP, DeviceNet |
| Power supply | 24V DC 3.75 A | 24V DC 3.75 A |
| Degree of protection | IP 65 | IP 65 |
| Hazardous area | No | ATEX/IECEx: II 2 G Ex d IIB T6 Gb |
Anton Paar Certified Service
- More than 350 manufacturer-certified technical experts worldwide
- Qualified support in your local language
- Protection for your investment throughout its lifecycle
- 3-year warranty
Documents
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Chemistry | L-Vis Inline Viscometer: Temperature Compensation Application Reports
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Food | Monitoring the spray drying process in the dairy industry Application Reports
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Paper | L-Vis Inline Viscometer: Starch Adhesives Application Reports
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Petrochemicals | Viscosity Measurement of Drilling Fluids with RheolabQC Application Reports
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Textile | L-Vis Inline Viscometer: Viscose Application Reports
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Viscosity | General | Inline Viscometers L-Vis 510 and L-Vis 520 Ex Application Reports
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Viscosity | Is your sanitary Ceramic ready for molding? Application Reports
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eBook - The Future of Plant-Based Foods Application Reports
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Process Engineering Solutions | Overview Brochures
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Tank Terminals Overview Brochure Brochures
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CE Declaration of Conformity | L-Vis 510 Certificates
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CE Declaration of Conformity | OT / ROT Certificates
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Success Story: Liebherr Customer Success Stories
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OT / ROT: GSD file PROFIBUS board Software and Firmware
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OT / ROT: GSDML file PROFINET board Software and Firmware
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Consumables
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To find out if you can purchase online from your location, check the online availability below.
If you do not find the item you require, please contact your Anton Paar sales representative.
O-RING GASKET 28.3X1.78 FPM 80 VITON
L-Vis 510 | 520 Ex