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Содержание KF40

Страница 1: ...ON 11 Commerce Boulevard Middleboro MA 02302 USA Tel 508 946 6200 or 800 628 8139 USA excluding MA Fax 508 946 6262 Internet http www brookfieldengineering com BROOKFIELD KF40 Falling Ball Viscometer...

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Страница 3: ...mple Tube 11 II 3 Temperature Control of the Sample 12 II 4 Measuring the Falling Time 12 III CALCULATIONS 14 III 1 Dynamic Viscosity 14 III 2 Kinematic Viscosity 15 IV DETERMINATION OF THE NON NEWTON...

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Страница 5: ...ll densities are listed on the test certificate accompanying the instrument You must provide the density value for the liquid that you are testing The six 6 balls with different diameters and densitie...

Страница 6: ...7x104 mPa s cP Falling Time Lower Limit 60 s for Ball No 1 30 s for Ball Nos 2 3 4 5 and 6 Falling Time Upper limit 300 s Materials with viscosity 7x104 mPa s require running times of over 300 s Meas...

Страница 7: ...ed in the DIN53015 standard To determine the accuracy of the viscometer for balls 1 4 5 and 6 please refer to the method specified in the DIN 53015 standard I 4 Description of the Equipment Refer to F...

Страница 8: ...meter See Appendix B 6 Thethermometerscrew 11 andthermometerseal 13 withinsertedthermometerisscrewed into M10x1Thermometer attachment thread 12 in the upper plate The thermometer screw should be tight...

Страница 9: ...Part No FB64 6 Glass Tube 15 94mm dia with s n oriented 17 Lower Locking Plug Part No FB66 towards the top of the instrument Part No FB76 18 Cap Part No FB63 7 Upper Plate 19 Viscometer seal A 16mm x...

Страница 10: ...alls These components material glass Ni iron steel perbunane silicone stainless steel surfaces must not be damaged or subject to chemical action by the cleaning fluid The cleaning procedure is to be c...

Страница 11: ...scometers is not permitted Otherwise the ball constants lose their validity When the falling time for the ball is less than the minimum time turbulence may occur II 2 Filling the Sample Tube To fill t...

Страница 12: ...Working Fluids Tubing 5 to 20 C Water distilled glycol mixture mixed in accordance with the manufacturer s instructions for the temperature range Insulated Latex tubing secured with tube band clips 1...

Страница 13: ...same height as the ring mark shows the ball periphery more distinctly With dark liquids you can better observe the ball in the sample tube by looking from behind the instrument Possible variations in...

Страница 14: ...g F working angle constant Angle of inclination a applied to the level Working angle constant F 80 DIN 1 0 70 0 952 60 0 879 50 0 778 The density and ball constant are each stated in the test certific...

Страница 15: ...ights reserved III 2 Kinematic Viscosity The conversion of the dynamic viscosity into the kinematic viscosity is accomplished using the following equation Equation 2 2 Kinematic viscosity mm2 s Dynami...

Страница 16: ...ity Pseudoplasticity and Dilatancy Using the KF40 Falling Ball Viscometer at different angles may serve to determine pseudoplastic or dilatant behavior for non Newtonian liquids If the sample is non N...

Страница 17: ...ve that the ends of the sample tube project evenly from the upper and lower plates 7 Re calibrate all the ball constants according to Appendix B A 2 Exchanging the Water Bath Jacket Caution Glass Comp...

Страница 18: ...o the method in DIN 53015 at 20 C 05 C A suitably calibrated thermometer can be obtained from your local authorized dealer on request Ball 6 is not recommended for use in performing a calibration chec...

Страница 19: ...ing MA MID sales ametek com Available Online Brookfield has a growing number of published articles that can be downloaded directly from the Brookfield website These articles can be found on our main s...

Страница 20: ...vice in the United States return to AMETEK Brookfield 11 Commerce Boulevard Middleboro MA 02346 U S A Telephone 508 946 6200 Fax 508 923 5009 www brookfieldengineering com For repair or service outsid...

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