rotational viscometer

1NDJ-4 typerotational viscometerWorking principle and purpose

1. The stepper motor is connected to the dial and pointer through the controller, and drives the rotor to rotate steadily through the balance spring and shaft. When the rotor is subjected to the viscosity resistance of the liquid, the balance spring generates torque to counteract the viscosity resistance, and finally reaches equilibrium. At this point, the pointer connected to the balance spring multiplies the reading on the dial by a coefficient to obtain the viscosity value mpa. s of the sample

2. NDJ-I viscometer. It can be widely used to determine solvent based adhesives, latex, biochemical products, paints, coatings, cosmetics, inks, pulp, starch, food, etc.

The instrument consists of a stepper motor, a computer motherboard, and an integrated circuit. Unlike ordinary models of synchronous motors and mechanical gears, it has no speed loss, noise, step loss, and stable speed. It has the advantages of being able to move its position up, down, back, and forth, and having a large range of measurement.

IINDJ-4 typerotational viscometerMain technical indicators

Viscosity measurement range: 10-2000000 mPa · S (NDJ-4)

Optional rotor No. 0, with a measurement limit of up to 1 mPa · S

Viscosity measurement accuracy: ± 5% (full range)

Reproducibility of viscosity measurement: ± 1% (full scale)

Viscosity resolution: using rotor 0, with a resolution of 1 mPa · S)

Standard rotor specifications: Four types of rotors: 1, 2, 3, and 4 (optional for rotor 0)

Speed: 0.3, 0.6, 1.5, 3, 6, 12, 30, 60 revolutions per minute in eight gears

Dimensions: 95 * 130 * 155 (excluding chassis)

Net weight: 2kg (excluding chassis)

3、 Environmental conditions for use

Environmental temperature: 5 ℃ -35 ℃ (recommended to use an environmental temperature of 20 ℃)

Relative humidity: ≤ 80%

Power supply: AC100~240V (50/60Hz)

There should be no strong electromagnetic interference near the product, no severe vibration, and no corrosive gases.

4、 Range of rotor range

0 #, 60 RPM, 1-10 millipascals per second

1 # 100000 to 20000 millipascals per second

2 # 5~100000 millipascals per second

3 # 20-400000 millipascals per second

4 # 10000-20000000 millipascals per second