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Koehler K38590 Mini-Rotary Viscometer

Rp. CALL
Last Updated
21 Sep 2021
Country Origin
United States
Minimum Order
1 unit
Category
KOEHLER

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


 


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