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| Krebs Unit Viscometer Model KU-2 |
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| Digital Direct Display of Viscosity in Krebs Units |
| Measures Paints, Coatings And Related Materials |
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- Direct-reading LED display, all models
- Krebs Units (KU)
- Centipoise (cP)
- Grams (gm)
- Display output to parallel printer
- Easy to use
- No weights
- Simplifies an established test technique
- Used in
- Quality control
- Research and development
- Specification References
- ASTM D562
- ASTM D856
- ASTM D1131
- International Specifications
- Options
- Air purge with electrical
system interlock
- Model KU-2 uses standard 1 pint can. Adapters are
provided to accommodate 1/2 pint and quart cans.
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| Technical Data |
| Range: |
40 to 141 KU; 32 to 1099 gm; 27 to 5,274 cP |
| Resolution: |
Within 0.1 KU or 1 gm |
| Accuracy: |
Within ±1% of full scale |
| Reproducibility: |
Within ±0.5% of full scale |
| Operating Temperature: |
10°C to 40°C |
| Spindle Speed: |
200 rpm ±0.1rpm |
| Measuring Containers: |
1 pint, 1/2 pint, 1 quart cans |
| Power Line Requirement: |
110 or 220 volts, 50 or 60 Hz |
| References: |
ASTM D562, D856, D1131 |
| Shipping Weight: |
22 lbs. (10 kg) |
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| Viscosity Standard |
Viscosity Centipoise |
Krebs Unit KU |
Prices |
| VI-028010 |
328 |
61 |
$86.00 |
| VI-028120 |
696 |
73 |
86.00 |
| VI-028230 |
1040 |
87 |
86.00 |
| VI-028340 |
1582 |
99 |
86.00 |
| VI-0284 |
2000 |
106 |
86.00 |
| Samples are tested in standard paint industry cans (1 pint, 1/2 pint, or 1 quart) held by a centering and retaining fixture. The container is filled to within 3/4" (20mm) of the top and located on the viscometer base |
| The operating lever has three positions: |
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- Up - Spindle stationary, drive motor off
- Down - Spindle rotating, sample being measured
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The displayed reading can be held by depressing the HOLD switch at any time. With the viscometer in the
HOLD configuration, the display may be switched to compare the Krebs (KU) or Centipoise (cP) reading
with the associated gram (gm) reading. If the spindle is stalled, no damage will result, as a torque-limiting
circuit protects the spindle drive.
For best reproducibility of sample measurements, the test material should be preconditioned for temperature and shear stability. |
Please note:
- The cP reading from the KU-2 will not necessarily agree with cP values
measured with other instrumentation due to:
- Unique shear rate of the KU-2 paddle spindle.
- Uniqueness of the Krebs unit scale. (The centipoise value should not be used for purposes of calibration.
- Use only Brookfield KU mineral oils for calibration check.
- The cP readings will only be valid when using the paddle spindle.
- The paste spindle may not be used to determine cP.
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Prices subject to change  Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only Export orders require quotations - click here for a quote For more info call us 1-800-762-2478 or 954-946-9454. |
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| Item Number |
Item |
Prices |
| VI-020102 |
Krebs Unit Viscometer - Standard Model, 115V |
$2,315.00 |
| VI-020104 |
Krebs Unit Viscometer w/ Air Purge, 115V |
2,470.00 |
| VI-020112 |
Krebs Unit Viscometer - Standard Model, 230V (BYK) |
2,315.00 |
| VI-020114 |
Krebs Unit Viscometer with Air Purge, 230V (BYK) |
2,516.00 |
| TH-02280 |
Stormer ASTM 49C Thermometer (20-70°C x 0.2°) |
54.00 |
| TH-02280/C |
Stormer ASTM 49C Thermometer w/ NIST Certificate |
301.00 |
| PU-G271 |
Conversion charts for conversion from Kreb units to cup drain times (download PDF) |
FREE |
| Spindles |
| VI-0223 |
Krebs Replacement Spindle |
147.00 |
| VI-0225 |
Krebs Paste Spindle |
88.00 |
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The three reduced size charts, at left. are only for illustrating this conversion method. Ask for complimentary full size (8-1/2" x 11") Krebs Units Conversion Charts and latest Krebs Stormer literature.
Three Step Conversion Procedure
Step 1: Knowing the Krebs value, convert this value to Centipoise viscosity. On the attached Krebs Units to Centipoise conversion chart, read vertically from the known Krebs unit to the curve and then horizontally to the left to the Centipoise value. Record this value.
Step 2: Convert the Centipoise value for the test material in question to Centistokes. On the attached Centipoise - Centistoke conversion chart, locate the Centipoise value from Step 1 on the vertical scale.Read horizontally to the right from this value to the Weight Per Gallon or Specific Gravity line, estimating values between lines, applicable to the test material in question. From this intersection read directly downward to the horizontal Centistoke scale and record this value.
Step 3: Determine the drain time in seconds for the viscosity cup in question from the Centistoke value from Step 2. For this conversion, refer to the Gardco Viscosity Cup Equivalent Chart or the conversion chart furnished with each Gardco produced viscosity cup. Only viscosity cups accommodating the highest range of viscosity are satisfactory for this conversion as most Krebs measurements are in the range from 500 to 1400 Centistokes.
For satisfactory results, do no use a viscosity cup above its recommended top limit. This conversion is accurate only for Newtonian or near Newtonian materials. Viscosity of materials that deviate greatly from these true liquids may not be “seen” the same by the Stormer and viscosity cup methods of measurement.
Please refer to the appropriate cup conversion chart. If you do not have one please contact us at 1-800-762-2478 or 954-946-9454. |
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