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Tel: +44(0) 1903 731 470 Kittiwake Developments Ltd.,3-6 Thorgate Road, Littlehampton, West Sussex, BN17 7LU, United Kingdom. Fax: +44(0) 1903 731 480 E-mail: sales@kittiwake.com

Unheated Viscometer - 25245 Test Solutions

U

Note: This item must be used in conjunctionwith the Oil Test Centre Console (as shown) and is supplied as part of the FG-K1-100 Oil Test Centre.

NHEATED

V

ISCOMETER

Viscosity is the prime quality of the oil. It isfundamental to maintaining the integrity of a lube oil film, in preventing metallic contact, scuffing, microwelding and wear of sliding surfaces. Viscosity can increase due to insolubles, oxidation or water contamination and very rapidly decrease with distillate fuel contamination. The viscosity of engine oil may fall due to distillate fuel oil dilution, by topping up with an incorrect oil grade, or shear or polymer additives. Viscosity may increase due to excessive soot loading (insolubles content) or if the centrifuge or filters are not operating correctly. For all oils, ageing caused by oxidation and thermal degredation may lead to thickening and an increase in viscosity. Viscosity must always be referred to as a standard temperature usually 40

o

C or 100

o

C. Lowviscosity causes wear and siezure.

Wear from low viscosity (fuel dilution)

SPECIFICATIONS

Test:

Viscosity NATOstock no: 6630-99-454-0611

Range:

20-500 cSt@ 40
o C (lube oils SAE5 through SAE50)

Test Time :

Viscosity at 40
o C 1 minute (unheated)Repeat test maximum 45 secondsCleaning 1 minute
Joint Oil AnalysisProgrammeApproval

Calculations:

Viscosity at 40
o C (unheated but corrected to 40
o C)Viscosity at 100
o C (unheated but corrected to 100
o C)SAE Grade (% within each SAE band) Density variation (0.8 to 1.0) Variable VI (25 to 250)

Application:

Any lubricating or hydraulic oil

Accuracy:

Typically within +/-3% (100 - 320cSt) or +/- 2cSt

Correlation :

ASTM D445/IP71
CK50083 Issue 5