If changing speeds doesn't provide readings between 10% and 100%, the user should try another spindle. If the reading is below 10% or above 100%, the user should choose a different speed to obtain a reading in the recommended range. When the viscosity of a fluid is not known. The viscometer will calculate and display the full scale range viscosity for that spindle and speed combination. Enter a spindle code and an RPM setting and press the AUTO RANGE key. Knowing the full scale range, you can then determine if your fluid fits within the capabilities of that spindle/speed combination.Īdditionally, digital viscometers equipped with the AUTO RANGE key allow the full scale range to be obtained automatically. The minimum viscosity that can be measured is equal to 10 times the factor, or one tenth of the full scale range. This is the full scale range for that spindle/speed combination. The maximum viscosity range of a spindle running at a given speed is equal to the spindle factor multiplied by 100. The objective is to choose a spindle that will produce a dial or digital display reading between 10% and 100% torque. This will help to ensure test results are accurate and repeatable. If a sample has historically been tested using a particular speed and spindle combination, the user should use that same combination. However, there are several means to narrowing the possibilities before any testing is performed. The process of choosing a spindle and rotational speed for use with your Brookfield viscometer is ultimately one of trial and error. My digital viscometers is display "EEEEE" when I am trying to test a material? What does that mean? What is a math model and when should you use it to evaluate viscosity test data? My spindle wobbles when it rotates - what does than mean? My dial reading and/or cP (viscosity) value won't stabilize, what does that mean? How do I calculate CAP 1000/2000 accuracy? How do I calculate accuracy of the reading when testing a sample? How long should I wait for thermal equilibrium? What is the accuracy of my Brookfield temperature probe? How is viscosity affected by temperature? What is the best calibration check that I can perform? How do I know if my instrument is calibrated? My fluid has a viscosity value that is not part of your standard fluids listing, what should I do?
Should I use silicone oil or mineral oil?
Certifications for Computrac and Jerome Products.Cone Plate Wells Brookfield Spindles Cups.DVNext Rheometer with Gel Timer Functionality.
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