Koehler K38590 Mini-Rotary Viscometer

Specification of Koehler K38590 Mini-Rotary Viscometer

Specification

Conforms to the specifications of: 

ASTM D4684; SAE J300; ILSAC GF3-GF4

In accordance with the specifications of: ASTM D3829, D6821*, D6896

* With available Drive Line equipment sold separately

Cabinet Material: Stainless steel and durable thermoplastic

Temperature Range: +80°C to -40°C (176°F to -40°F)

Bath Design: Solid, direct cooling without liquids

Cooling Rate: Single Unit: 5.0°C per minute maximum

Refrigerant: R-507

Compressor Size: 1/3 Horsepower

Temperature Control: +/- 0.1°C, digital readout

Heating Capacity: 600 Watts

Testing Capacity: 10 samples

Test Method

Determines the measurement of the Yield Stress, Apparent Viscosity and Borderline Pumping Temperature (BPT) of engine oils. Borderline pumping temperature is a measure of the lowest temperature at which an engine oil can be continuously and adequately supplied to the oil pump inlet of an automotive engine. Provides a correlation between the temperature at which the viscosity of engine oils reaches a critical value and the borderline pumping failure temperature in engines at the test method specified shear stress.

Features

• Testing capacity of up to 10 samples.
• Microprocessor temperature controllers store all testing profiles in memory.
• Unique design is fully self-contained - no external refrigeration or heating apparatus needed.
• Advanced direct refrigeration technology eliminates the need for liquid cooling mediums such as methanol.
• Removable test cells allow for easy cleaning, sample agitation and advance sample preparation.
• New rotor design eliminates possible interference with water and ice.
• Internal hermetic refrigeration system provides direct instant cooling.
• Power-saver feature allows testing profile to resume in the event of a brief power interruption.
• Internal gas system provides a continuous blanket of dry gas over samples to eliminate moisture buildup.
• Rotor stator rack supplied for convenient cleaning, drying, and storage.
• Safety features include high pressure cutout and high temperature limits.
• Rotor stator sets included with instrument. Additional sets readily available.
• Optional Software Package available

Additional Accessories

• K38500-1 Stator Insertion/Removal Tool (SIRT)
• K38500-2 Moisture Cover
• K38500-3 Rotor/Stator Set (1 Set)
• K38500-6 Stainless Steel Thumb Nut
• K38500-7 Air Filter Dryer with Desicant
• K38500-8 Rotor/Stator Holding Rack
• K38500-10 N105B Reference Oil (Pint)
• K38500-11 MRV String
• K38500-12 MRV Driveline Rotor (for D6821)
• K38500-13 MRV Weight Set - Driveline (for D6821)
• K38500-14 Desiccant Media - 1 lb. 
• K38500-15 MRV Weight - 10 gram
• K38500-16 MRV Weight - 150 gram

Included Accessories

• Removable Rotor/Stator Sets (10)
• Rotor/Stator Holding Rack
• Stator Insertion/Removal Tool
• Moisture Cover
• Set of Weights and Strings
• Air Filter Dryer and Desiccant
• Calibration and Certification

Electrical Requirements

115V 50/60Hz, 15A
220V 50/60Hz, 7A