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Koehler K23371
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KV1000 Constant Temperature Kinematic Viscosity Bath
Operation and Instruction Manual
- 6 -
Cannon
®
-Fenske Routine Viscometers
The Cannon
®
-Fenske Routine viscometer is a rugged and inexpensive viscometer that works well if the sample is transparent or
translucent.
For kinematic viscosity of transparent liquids up to 20,000cSt.
Requires a sample of approximately 7mL.
Cannon
®
-Fenske Opaque Viscometers
The reverse flow viscometers are designed for testing opaque liquids. These viscometers wet the timing section of the
viscometer capillary only during the actual measurement and must be cleaned, dried and refilled before a repeat
measurement can be made. By contrast, other viscometer types commonly used to measure transparent liquids allow the
sample to be repeatedly drawn up into the capillary, permitting duplicate measurements.
For measurement of transparent and dark liquids having kinematic viscosities of up to 20,000cSt
Requires a sample of approximately 12mL.
Ubbelohde Viscometers
Ubbelohde viscometers measure transparent liquids, and unlike the Cannon
®
-Fenske Routine viscometers, they maintain
the same viscometer constant at all temperatures. This is advantageous when samples are to be measured at different
temperatures.
Suspended-level type viscometers are for transparent liquids of up to 100,000cSt
Requires a sample volume of approximately 11mL.
Viscometer Holders
Koehler offers a wide range of viscometer holders for use with the KV1000 instrument. The correct holder must be used
with the corresponding viscometer tube for proper operation:
ASTM Thermometers
Part Number
ASTM Designation
Range
Part Number
ASTM Designation
Range
250-000-28C
Kinematic Viscosity at 27.8°C
36.6 to
39.4°C
250-000-28F
Kinematic Viscosity at 100°F
97.5 to
102.5°F
250-004-28C
28C Certified at ASTM
specified test points of 0, 37.8,
39°C
36.6 to
39.4°C
250-004-28F
28F Certified at ASTM
specified test points of 32, 100,
102°F
97.5 to
102.5°F
250-000-29C
Kinematic Viscosity at 54.4°C
52.6 to
55.4°C
250-000-29F
Kinematic Viscosity at 130°F
127.5 to
132.5°F
250-004-29C
29C Certified at ASTM
specified test points 0, 54.4,
55°C
52.6 to
55.4°C
250-004-29F
29F Certified at ASTM
specified test points 32, 130,
132°F
127.5 to
132.5°F
250-000-30F
Kinematic Viscosity at 210°F
207.5 to
212.5°F
250-004-30F
30F Certified at ASTM
specified test points 32, 210,
212°F
207.5 to
212.5°F
Viscometer Tube Type
Corresponding Holder
Cannon®-Fenske Routine
Cannon®-Fenske Opaque
K23381
Ubbelohde
BS/U-Tube
K23382
Reverse Flow
K23383