How to Choose and Use Viscometer ?

Zonwon Tech,IVS300-2 automatic viscometer

How to choose the right viscometer?

There are variety of classification of the viscometer,it can be divided into 3 types with the mode of operation , capillary type,rotary type and vibration type . So how to choose the correct viscometer and how to use it?

4 parameter when select the viscometer:
1. Temperature, temperature controllable, temperature range?
2. The range of viscosity,the viscosity range of your sample.
3. Need to be measured at a fixed shear rate, or fixed speed, rotor, etc.
4. Sample quantity, whether the sample is expensive, whether the need to control the amount of samples.

Zonwon Tech, IVS300-6 automatic viscometer

How to use the viscometer?

1. The machine must maintain the level of state.
2. The rotor sample to avoid air bubbles, otherwise the measured viscosity can be reduced, the method is to avoid the rotor inclined to sample, and then install the rotor, the rotor can not touch the wall of the cup and the bottom of the cup, the scales are measuring samples must be No.
3. When measuring different samples, the rotor must be kept clean and dry, if there are other samples of the rotor or the remaining water after cleaning, will affect the accuracy of the measurement
4. Acid (PH) maximum of not more than 2, if the acidity is too large to be used special rotor, when using ULA to determine the good quality (16ml)
5. According to the determination of the viscosity of liquid viscosity range selection standard, and in front of the instrument or the viscometer rheometer validate each use, or regular check, to ensure measurement accuracy. BROOKFIELD can provide the scope of the viscosity of the Newton fluid properties of silicone oil or oil standard, the accuracy of 1%, the standard viscosity of the liquid is recommended for a period of one year since the opening.
6. The value to be more stable in the numerical value, otherwise there will be a large numerical error
7. The choice of the rotor, depending on the viscosity of the sample was measured and the number of rotors of the measurement range is the closest, on the election number.
8. The rotor is connected to use the left hand and gently pinch the mandrel (host), right hand rotation of the rotor, this operation is to protect the body of the spindle and the hairspring, it can prolong the life of the instrument.

Issued by Hangzhou Zonwon Technology Co.,Ltd