This is a digital viscosity meter manufactured by Brookfield. First, move the power switch so that it is in the "on" position (I) so that the digital viscometer can be turned on. After that, the screen will become visible. In the teaching laboratory at FNH, there is a viscometer that has a set of 5 spindles attached to it.
Each spindle bears an engraving with the corresponding size number. You can begin with a spindle of any size, and then adjust it based on the reading from the viscosity gauge. To attach the spindle to the viscometer, first carefully raise and maintain your grip on the viscometer's connecting nut. Next, carefully screw the desired spindle onto the viscometer's connecting nut in a clockwise direction. When connecting the main shaft, you need to make sure that the shaft does not get bent.
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Turning the spindle / speed switch in the direction of the spindle will cause the spindle number that is displayed on the display to change, and the wheel will rotate to the number that corresponds to the spindle number that was changed
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After that, place the switch in the middle position
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To modify the speed of the spindle, first turn the switch so that it is set to speed, and then adjust it using the wheel
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When you are finished, place the switch in the middle position
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You can adjust the height of the spindle on the viscometer by turning the knob located on the instrument's back
Move enough samples so that they can be stored in the beaker. Because changes in temperature can have an effect on the sample's viscosity, you need to make sure that the temperature of the sample stays the same from reading to reading. Before beginning or continuing the analysis, you are required to take a temperature reading of the sample. The beaker that you use must be big enough to accommodate the spindle that you select, and the volume of the sample must be sufficient to ensure that the spindle is completely submerged in the etching mark.
After the spindle has been placed in the water, the motor can be started, and the spindle should begin to rotate. Always check to see that the spindle is positioned in the exact middle of the beaker. After a brief pause, record the reading that appears on the screen the majority of the time in MPa. Check to see that the percentage value that is being displayed on the screen falls somewhere between 10% and 100%. If the value of the percentage is less than ten percent, the spindle size is increased, and the spinning speed is increased as well. When the percentage value is greater than 100%, the spinning speed should be slowed down, and a smaller spindle should be used. If you get a reading of eeee, it indicates that the sample is too sticky for the spindle, and you will need to use a spindle that is a smaller diameter.
When you swap out the spindle in the viscometer, you must always remember to adjust the spindle number accordingly. After you have completed the task, make sure the motor is turned off and then lift the spindle. Switch out the beaker containing the sample with one containing the waste. Deionized water should be used to clean the sample residue off of the mandrel.
What is the Function of a Viscometer?
Rheometers and ViscometersViscometers are instruments that measure a fluid's viscosity as well as its flow properties. Rheometers, which are viscometers' more advanced relatives, are instruments that measure how a fluid reacts when subjected to shear or stress, and they have the potential to provide information on a material's structure as well as its elasticity.
Rheometers and viscometers have a variety of potential applications.
The instruments are applicable in any field that requires the investigation of flow properties, such as the testing of food and beverages as well as chemicals.
The study of materials Cosmetics and petroleum, and even more.
Instrumentation in a Wide Variety
There are a variety of formats available, including falling or rolling sphere (ball), falling or oscillating piston, cone and plate, rotational, vibrational, and capillary types. Simple mechanical viscometers can range all the way up to high-end units that can perform complex rheological measurements.
Things to think about before making a purchase of Rheometers and Viscometers
An instrument is guaranteed to meet your exact requirements if it satisfies a number of criteria, including varying degrees of temperature control and automation, computer operation, rotational speed control, measurement range, the capacity to measure small quantities of sample, and the ease with which it can be used.
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