BAKER
INSTRUMENTS
YEAR
WARRANTY
1
1
Series
B3000
Viscosity Cup
Instruction Manual
The Baker Viscocity Cup Series includes the following models:
B3200 Viscosity Cup No.2, 20-80 sec, B3300 Viscosity Cup No.3, 20-75 sec, B3500 Viscosity Cup No.5, 20-80 sec.
Measuring Procedure
1. When the liquid test temperature has been reached, immerse the cup
completely into the liquid and twist several times to dislodge any bubbles
which may be clinging to the internal surface of the cup (Fig. 1, A).
2. Stir the liquid gently to ensure uniform temperature and density.
3. Leave the cup in the liquid for one to five minutes.
4. Lift the cup vertically and quickly out of the liquid (Fig. 1, B) and start the
timer the moment the top of the cup breaks from the surface of the liquid.
Product Quality
This product has been manufactured in an ISO9001 facility and has been
calibrated during the manufacturing process to meet stated product
specifications. If a certificate of calibration is required please contact the
nearest authorized Baker distributor or authorized Service Center.
Note: An additional fee for this service will apply.
Features
• Simple and durable
•
12'' handl
• Precision-drilled orifice
• Complies with ASTM D 4212, D816, D1084
Applications
B3200 Viscosity Cup No.2
•
The B3200
with solvent for application. Used by the automotive and similar industries.
B3300 Viscosity Cup No.3
•
The B3300
desired.
B3500 Viscosity Cup No.5
•
The B3500
prior to reduction with solvent.
Operating Instructions
Before starting your test
• Select a Viscocity cup nearest to the expected viscosity range of the liquid
being measured.
•
Ensure the handle,
Note:
• The liquid being tested must be homogeneous and must not contain
any bubbles.
• Measure and record the temperature of the liquid and adjust the
temperature to 77°F (25°C), if necessary.
e with ring ensures that the Zahn cup remains at level
is primarily used for all mixed paints which have been reduced
is used for higher solids application where extra heavy films are
is generally used for checking the viscosity of unthinned paints
the cup and the orifice are clean and free of debris.
A dirty viscosity cup will impact the accuracy of the test.
Fig.1, A Fig.1, B
Note:
During the flow time, hold the cup no more than 6’’ above the level
of the liquid.
5.
the timer when the first break in the stream at the base of
Stop
the cup occurs.
6. Repeat the test 2-3 times and take the average time of the tests to
reduce errors.
7.
Mark down
8. Convert the efflux time to centistokes (cSt).
(See the
further details).
Clean
9.
Note:
Using abrasive cleaning materials such as a wire brush could damage the
cup which will cause inaccurate test results.
Converting Zahn seconds to Centistokes (cSt)
To convert the efflux time (s) to kinematic viscosity/centistokes (cSt), use the
following formula:
Where:
V is Kinematic Viscosity (cSt)
T is Efflux time of your test (Zahn seconds)
K + C are constants (based on cup type)
Specific Formulas based on type of Viscosity Cup in series
• B3200 Cup No.2 V = 3.5 (T-14) 25-80
• B3300 Cup No.3 V = 11.7 (T-7.5) 20-75
• B3500 Cup No.5 V = 23 (T-0) 20-75
the efflux time (Zahn seconds).
Converting Zahn seconds to Centistokes (cSt)
the cup with an appropriate solvent and dry with soft, lint-free tissue.
V= K (T – C)
section for
Specifications
Model B3200
Capacity
Inside Height
Inside Diameter
Orice Size
Zahn Range
Centistokes Range
Total Weight
Find Quality Products Online at: sales@GlobalTestSupply.com
Viscosity Cup No.2
44 cc's 44 cc's 44 cc's
2.28" (58mm) 2.28" (58mm) 2.28" (58mm)
1.292" (32.8mm) 1.292" (32.8mm) 1.292" (32.8mm)
0.11'' (2.74mm) 0.15'' (3.76mm) 0.21'' (5.28mm)
20-80 20-75 20-80
21-231 146-848 460-1840
0.15 lbs (2.45oz) 0.15 lbs (2.45oz) 0.15 lbs (2.45oz)
www.GlobalTestSupply.com
B3300
Viscosity Cup No.3
B3500
Viscosity Cup No.5
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