Corresponding relationship between rotor and speed of rotary viscometer and its application range
Viscometer type
The classification of viscometers can be classified according to operation mode, working mode and measurement product type. If divided according to the operation mode, it can be divided into three types: capillary viscometer, rotational viscometer and vibration type; according to the working mode: offline viscometer (sampling detection), online viscometer (24-hour continuous measurement), portable viscometer; According to the types of measurement products: solder paste viscometer, portable viscometer, viscosity control instrument, Stormer viscometer.
Measurement types of rotational viscometer
Viscosity is the physical quantity that represents the internal friction that occurs in the fluid when the fluid is flowing. It is the ability of the fluid to resist deformation and is an important indicator used to identify certain finished or semi-finished products. Viscosity varies with different fluids and varies with temperature. The rotary viscometer measures the dynamic viscosity of various Newtonian liquids and the apparent viscosity of non-Newtonian liquids.
Rotational viscometer
Correspondence between rotor and speed of rotary viscometer
Product number | NDJ-5S | NDJ-8S | NDJ-9s |
Input power/frequency | AC220V±10V 50Hz±11% | ||
Power | 12W | 12W | 12W |
Display method | LCD screen | ||
Measuring range (mPa·s) | 1-1×10^5 | 1-2×10^6 | 1-1×10^5 |
Rotor specifications | 1, 2, 3, 4 rotors (optional 0 rotor can measure the viscosity to 0.1-10mPa·s) | ||
Rotor speed (rev/min) | 6/12/30/60 | 0.3/0.6/1.5/3/6/12/30/60 | 6/12/30/60 |
Measurement accuracy (Newtonian liquid) | ±2% | ||
Repeat error (Newtonian liquid) | ±1% | ||
Temperature sensor interface | / | / | Yes |
RS232 interface | / | / | / |
Net weight (Kg) | 6.8 | ||
Product size (L×W×H mm) | 370×325×281 | ||
Rotational viscometer price
The price of a rotary viscosity tester is priced according to its functional diversity, and the more functions it has, the price will be relatively more expensive.
Application range of rotary viscosity tester
Rotary viscometers and viscosity testing instruments are used to measure the viscous resistance and dynamic viscosity of liquids. They are widely used to determine grease, paint, melt plastics, food, drugs, cosmetics, adhesive products, solder paste, inks, coatings, The viscosity of various fluids such as resin, latex and glue.
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