Brookfield DV-II+ PRO VISCOMETER LVDV-II+P CP with Model S Laboratory Stand
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The Brookfield DV-II+Pro Viscometer measures fluid viscosity at given shear rates. Viscosity is a measure of a fluid’s resistance to flow. You will find a detailed description of the science of viscosity in the Brookfield publication “More Solutions to Sticky Problems”
The DV-II+Pro offers exceptional versatility in modes of control allowing for traditional standalone operation, automatic operation through programs downloaded from the PC or with complete control by PC using Brookfield Rheocalc Software.
• The DV-II+Pro can be used as a traditional Brookfield viscometer for collection of single speed viscosity data through the easy to use keypad; just select the spindle and speed and read the value from the display.
• The Brookfield DVLoader Software can be used to program the DV-II+Pro to control all aspects of the test and data collection without the need for the operator to monitor the instrument; just start the program and return to the printed test data (printer is optional).
• The Brookfield Rheocalc Software will perform all control and data collection functions of the DV-II+Pro from the PC while also providing a platform for advanced data collection and analysis.
In any of these modes of control, the DV-II+Pro will provide the best in viscosity measurement and control. The principal of operation of the DV-II +Pro is to drive a spindle (which is immersed in the test fluid) through a calibrated spring. The viscous drag of the fluid against the spindle is measured by the spring deflection. Spring deflection is measured with a rotary transducer. The measurement range of a DV-II+Pro (in centipoise or milliPascal seconds) is determined by the rotational speed of the spindle, the size and shape of the spindle, the container the spindle is rotating in, and the full scale torque of the calibrated spring.
There are four basic spring torque series offered by Brookfield:
Spring Torque
Model dyne/cm milli Newton/m
LVDV-II+Pro 673.7 0.0673
RVDV-II+Pro 7,187.0 0.7187
HADV-II +Pro 14,374.0 1.4374
HBDV-II+Pro 57,496.0 5.7496
The higher the torque calibration, the higher the measurement range. The measurement range for each torque calibration may be found in Appendix B.
All units of measurement are displayed according to either the CGS system or the SI system.
1. Viscosity appears in units of centipoise (shown as “cP”) or milliPascal-seconds (shown as “mPa•s”) on the DV-II+Pro Viscometer display.
2. Shear Stress appears in units of dynes/square centimeter (“D/cm2”) or Newtons/square
meter (“N/m2”).
3. Shear Rate appears in units of reciprocal seconds (“1/SEC”).
4. Torque appears in units of dyne-centimeters or Newton-meters (shown as percent “%” in both cases) on the DV-II +Pro Viscometer display.
The equivalent units of measurement in the SI system are calculated using the following conversions:
SI CGS
Viscosity: 1 mPa•s = 1 cP
Shear Stress: 1 Newton/m2 = 10 dyne/cm2
Torque: 1 Newton/m = 107 dyne/cm
References to viscosity throughout this manual are done in CGS units. The DV-II+Pro
Viscometer provides equivalent information in SI units.
Condition
Used, good condition. Suggested to have annual calibration performed prior to entering service. PC software, sample cup and cone spindle are not included, which can be ordered from Brookfield.
Includes
(1) Brookfield DV-II+ PRO VISCOMETER LVDV-II+P CP with Model S Laboratory Stand
Warranty
30 Day warranty. We pledge to offer the best service and warranty to all of our customers! We are extending a 30 Day warranty on this item. This is our way of saying thank you for allowing us to serve you.
Certification
This is a genuine product from this manufacturer.
Disclaimer
The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. the item is subject to FDA regulation, we will verify your status as an authorized purchaser of this item before shipping of the item."
Regardless of the origin of the equipment, documentation provided or identification appearing upon the equipment, the equipment described and offered here is in no way certified for, recommended for, or offered for any specific use. The purchaser agrees that the seller shall not be held responsible or liable for any injuries or damages, whether incidental or consequential, associated in any way with the equipment. The purchaser, by bidding on this equipment, indicates their acknowledgment of, and agreement to the terms of this disclaimer. it is the purchaser's responsibility to have the item inspected and certified by a qualified professional before use!
