Analytical Instrumentation
U-Visc kinematic viscometer
The Omnitek U-Visc combines several unique features, making it the instrument of choice in many applications, ranging from QC to R&D to used oil analysis. While offering full compliance with ASTM D445/ D446, the specially designed viscometer tubes cover a 100- fold range.
The capillary tubes are based on the well-known and proven Ubbelohde design. Available with single or dual solvent cleaning, the instrument measures kinematic viscosity in lubricants between 0.15 and 25,000 mm2
/s.
Designed to be versatile and flexible, yet easy to use. Different models are available ranging from 1 bath with 1 or 2 tubes, up to 2 baths with 1 or 2 tubes per bath, where each bath works independently. Each bath features a sampling tray with 16 samples per tube, allowing completely unattended operation at different temperatures. Depending on the viscosity of the sample, the instrument can process up to 10 samples per tube per hour, leading to a maximum capacity of up to 40 samples per hour, satisfying even the needs of high volume labs running several hundred samples per day. An optional sample preheater allows processing samples such as waxes and heavy fuel oils as well.
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BitUVisc viscometer
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Omnitek introduces a fully automatic viscometer for highly viscous samples up to 120,000 mm2
/s,
specifically developed to cover sample types which pose great challenges to automatic sampling, measurement and cleaning because of their high pour point and viscosity.
The instrument was
especially developed for demanding applications of high temperature and high viscosity products such as vacuum residue, additives, crude oils, waxes, heavy fuel oils, polymers, asphalts, etc. Because of the problems associated with heating, sampling, measuring and cleaning these types of samples, users were forced to resort to manual processing, which is a long and tedious process. Featuring a sample preheater and covering a range up to 150°C and 120,000 mm2
/s, the BitUVisc finally offers users
a way of automatically measuring these types of samples, resulting in very substantial time savings. By implementing specially designed duplo measurement tubes based on the proven Ubbelohde viscometer type, the precision of the obtained results far exceeds requirements in ASTM D445 and D2170. An innovative cleaning system ensures that even the toughest samples are cleaned effectively from the inside and outside of the tube, preventing any cross- contamination.
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47870pr@reply-direct.com ANNUAL BUYERS GUIDE •
WWW.PETRO-ONLINE.COM U-Visc
ASTM D445/D446, ASTM D2170, AASHTO T201, EN 12595
47869pr@reply-direct.com
ASTM D7279, ASTM D2270
BitUVisc
S-flow automated Houillon viscometer by Omnitek BV The S-flow range of instruments consist of compact, bench-top automated viscometry systems for the analysis
of Newtonian fluids. It complies fully with in ASTM D7279 and as such, has a direct correlation with ASTM D445. It is the ideal system for used oil analysis labs that need to test a wide range of lubricant viscosities. Quick analysis time, small sample size and low solvent consumption, combined with extreme ease of use and reliability make it the instrument of choice for many of our world-wide users.
The S-flow system is a self-contained viscometer system that consists of an accurately controlled thermostatic bath and a control touchscreen. Different models are available with either 1 or 2 baths, each of which contains 4 Houillon style tubes. Highly accurate optical sensors detect the flow of the sample through the viscometer tubes to obtain flow time results with 0.001 sec. precision. All measuring viscometer tubes function fully independently of each other allowing for very high throughput.
Additional parameters such as tube constants and cleaning cycle are also controlled by the operator. Only requiring 0.3 ml of sample, the system performs the measurement very quickly, allowing a throughput of up to 80 tests per hour per bath. Options include dual solvent cleaning and integrated duplo testing which allows the operator to perform 2 flow time determinations with only 1 injection.
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47868pr@reply-direct.com
27
Experts in viscosity
S-flow
ASTM D445/D446 ISO 3104/3105 IP 71
AUTOMATED KINEMATIC VISCOMETRY SYSTEMS
The S-flow range was developed specifically for maximum throughput applications using less than 1 ml of sample. Our U-Visc models fully comply with ASTM D445 and provide fully automatic, unattended operation. Finally, our BitUVisc instruments were tailored to cover the most taxing applications and are capable of automatically testing extremely viscous samples such as additives, asphalts and HFO.
visit
www.omnitek.nl OMNITEK BV – EXPERTS IN VISCOSITY
www.omnitek.nl
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