The SBT^® test measures the apparent viscosity of fresh, sooted, or highly oxidized engine oils at low temperatures. It determines the susceptibility of engine oils to flow-limited and air-binding responses during slow cooling conditions by providing continuous rheological data over a broad temperature range (+90°C to -40°C).

Additionally, the multi-purpose Direct Cool^® II can be used for running the automated low-temperature viscosity test for ATF, hydraulic fluids, and gear oils per the new ASTM D2983, Procedure D technique. The dual-position design allows operators to test two samples simultaneously, or the ability to run a reference sample alongside an unknown sample as indicated in the ASTM method.

• Thermoelectric Module Cooling (TMC) eliminates flammable bath mediums.
• Small, Dual-position, bench-top footprint.
• Incorporates new all-digital TAV-IIIM SBT^® Viscometer model.
• SBT^® Automation Package (w/Laptop) offers the capability to operate up to four, 2-place Direct Cool II^® units simultaneously and independently.
• Self-contained pre-heating: Heats samples up to 90°C prior to prescribed cooling profile.
• Programmable Temperature Controller maintains bath temperature within ±0.1°C to -40°C.
• Universal Power capability (110—240VAC, 50/60 Hz)
• Internal automatic dry air system removes moisture that accumulates during the test.
• Built-in touchscreen for easy-access temperature control settings and bath operations.

GIR-150 | Gelation Index Reference Oil
LNP-5 | Low-Temperature Newtonian Oil

For a complete listing of part numbers and available container sizes of Tannas Reference Oils, please review the Tannas Reference Oils & Catalysts Parts List.

Visit our Certified Reference Materials page to download SDS sheets or Oil Certificates.

Instrument
102000: Direct^® Cool ll, 110-230V, 50/60 Hz Power

ASTM D5133 & D7110 (SBT^®)
100005: Viscometer – Touchscreen
102400: DC II D2983 Viscometer Accessory Package
160021: Adapter Assembly – D2983, DCII
100052: Spindle Sleeve Assembly
100256: Coupling Bottom
100257: Coupling Sleeve
100258: Coupling Top
100231: SimAir^® Spindle Assembly
102500: SBT^® DC II Automation Package
100022: SBT^® Viscometer (TAV)
160022: SBT^® Direct Cool^® Stator
160021: SBT® Direct Cool ^®Adapter Assembly
160011: SBT^® Direct Cool^® Rotor
100031: Female Hook
100032: Male Hook
160500: SBT^® Oil Package

ASTM D2983 (Low-Temperature Viscosity)
100005: Viscometer – Touchscreen
102400: DC II D2983 Viscometer Accessory Package
160021: Adapter Assembly – D2983, DCII
100052: Spindle Sleeve Assembly
100256: Coupling Bottom
100257: Coupling Sleeve
100258: Coupling Top
100231: SimAir^® Spindle Assembly