Tomorrow's Instruments TodayTM

Tannas instruments have been designed to answer particular needs expressed by oil companies, OEMs and additive manufacturers for measuring properties critical to high quality lubricants.  All Tannas instruments are laboratory tested and certified by SavanTech technicians prior to delivery to our customers.  All instruments are commissioned and calibrated at the customer's site by Tannas Certified Engineers.  For our catalog, price quotes, and delivery times, please contact one of our worldwide sales offices.
 

	Tapered Bearing Simulator Viscometer (TBS) A required test for passenger car engine oils (API SJ, SM, SAE J300, ASTM D4485, ILSAC GF-2, GF-3 and GF-4).  Measures the high-temperature, high-shear viscosity of the oil as seen by the engine during operation according to ASTM D4683 and D6616.  Is applicable on a variety of fluid and lubricant types, including automatic transmission fluids (ATF), hydraulic fluids and railroad engine oils. Instrument of choice for high shear determinations used in the Viscosity Loss Trapezoid (VLT).  When operated at 100°C and 150°C, the TBS generates data for applying the Fuel Efficiency Index to engine oils.  Currently, there are three TBS models available (TBS 2100E, TBS 2100E-F and TBS 600) that can be operated in either Manual, Semi-Automated or Full-Automated modes.
	Tannas Basic Rotary Viscometer (TBR)  A more flexible and accurate alternative to kinematic viscosity measurements at low shear rates. Gives viscosity in centipoise directly comparable to rotational measurements at high shear rates. Excellent tool for measuring viscosities of 'used' and highly sooted oils and for comparing true viscosities of multigrade mineral and synthetic oils.  Instrument of choice for low shear determination of Viscosity Loss Trapezoid (VLT) used in VI Improver containing oil..
	Thermo-oxidation Engine Oil Simulation Test (TEOST®) A required test for passenger car engine oils (ILSAC GF-2, GF-3 and GF-4).  Simulates the high-temperature mix of engine oil and combustion gases and measures the resistance an oil has to forming deposits.  Currently there are two TEOST Protocols, 33C (ASTM D6335) and MHT® (ASTM D7097).
	Scanning Brookfield Technique (SBT) / Gelation Index Determines whether and to what degree the oil in the sump will flow in adequate quantities to the oil pump.  The lower the temperature at which this test reaches a critical value of viscosity, the more satisfactory the oil.  Gelation Index is a measure of the severity of engine oil gelation at low temperature.  The higher the Gelation Index, the more severe the tendency to cause air-binding in the engine.  Gelation Index values are derived by analysis of the viscosity-temperature curves produced by the Scanning Brookfield test method, ASTM D5133.  Both the Scanning Brookfield and Gelation Index are required tests for passenger car engine oils (ILSAC GF-2, GF-3 and GF-4) as a measurement of an oil's pumpability after slow cooling.  Three models are available - the versatile SB+2, the SB+4 and SB+8.
	Tannas Quantum™ (RPVOT, RBOT) Oxidation Tester Rotating Pressure Vessel Oxidation Test (RPVOT) This non-liquid 'dry cylinder' D2272, RPVOT apparatus is the first innovative approach to the test in decades -- eliminates the mess and dangers of hot oil baths and reduces the number of parts for quick turn around and interchangeability between methods.  Small, single-test, design permits multiple units to function independently dramatically increasing productivity.  The RPVOT (ASTM D2272) test method is used in evaluating the oxidation stability of new and in-service turbine oils. The non-liquid Quantum™ tester can also be used on other lubrication research applications where oxidation is a problem such as comparing the oxidation resistance of formulated engine oils and basestocks according to TFOUT (ASTM D4742). A Software Automation Package is available for monitoring and recording up to (4) Quantum™ units independently.
	Selby-Noack Volatility Test A high-tech replacement for Noack equipment used to measure evaporation loss of lubricating oils without hazardous Woods metal heating and permiting collection of the volatilized material for further analysis.  Only instrument capable of generating values for new Phosphorus Emission Index for passenger motor oils and Sulfur Emission Index for diesel engine oils.  Easy to use and clean.  Built-in vacuum pump and automated flow control system.  Meets ASTM D5800 Procedure C and can be adjusted for Procedure B operations.
	Tannas Foam Air Bath (TFAB) Single bench-top air bath for running all four required foaming sequences (Sequence I, II, III of ASTM D892, and Sequence IV of D6082).  A safe, efficient alternative to oil baths.  Holds six 1000-mL graduates.  Automatic alarms notify operator when to take reading for two oil samples simultaneously.
	Technical Exchange If you are a current user of a Tannas instrument, we want your input.  If you have a lubricant measurement problem you think may be applicable to a Tannas instrument, let us know.

The Savant Group

tannas@savantgroup.com