MODERNER NDJ-8S Digital Rotational Viscometer viscosity range is 1-2000000cp

NDJ-8S

Digital Rotational Viscometer

Digital display, measurement range 1~ 2000000mPa · s, rotor specifications 1 #, 2 #, 3 #, 4 #, Rotor speed 0.3/0 6/1.5/3/6/12/30/60rpm, reproducibility +/- 0.5% F.S, measurement accuracy +/- 2% F.S.

Introduction to NDJ-8S Digital Display Rotational Viscometer

NDJ-8S digital display Rotational Viscometer is a digital display Rotational Viscometer designed according to the JJG-2005 standard in MODERNER. Compared with NDJ-5S Rotational Viscometer, it has a larger viscosity range. Equipped with No. 1, No. 2, No. 3 and No. 4 rotors. When the viscosity of the measured sample is more than 15 cp, it is necessary to purchase No. 0 low-viscosity rotor for use. NDJ-8S digital display rotary viscometer adopts the latest international microcomputer control technology, excellent imported stepping motor, its LCD with backlight function, through program setting, automatic speed control, with good accuracy, stable speed , Easy to operate, automatic scanning, error alarm and other practical functions.

Key Function

1) ▲/▼ function keys, used to change the rotation speed and select the rotor number

2) "Rotor Selection" function key, prompting the rotor number, the cursor flashes

3) "Speed speed setting" function key, prompting the speed, the cursor flashes

4) "Start, Stop" function key to execute or terminate the current measurement program

5) "Auto scan" function key, for unknown samples to help users choose the appropriate rotor speed measurement

6) "OK" function key to confirm the currently selected information

Features

1) NDJ-8S Digital Rotational Viscometer uses standard silicone oil to measure and calibrate the full scale and linearity of the viscometer through the PC interface. It has the characteristics of high sensitivity, high precision and high repeatability.

2) LCD display content: rotor number, speed, range, viscosity, temperature, opening angle %.

3) With the function of % of the measured value in the full scale, it is very convenient for the user to select the rotor and rotational speed for accurate measurement of the sample liquid.

4) The stepping machine intelligently adjusts the speed according to the program, abolishing the old method of gear speed adjustment.

5) It has the advantages of stable speed, quick and easy operation, high measurement accuracy, good anti-interference performance, and wide working Voltage (110V, 220V, 50Hz, 60Hz are all available).

Application

NDJ-8S Digital Rotational Viscometer is suitable for measuring solvent-based adhesives, latex, biochemical products, paints, coatings, cosmetics, inks, pulp, food, starch, etc.

Principle of Rotational Viscometer

As shown in the figure above, the stepping motor is driven with high resolution to drive the sensor pointer, and the rotor is driven to rotate through the hairspring and the rotating shaft. If the rotor is not resisted by the fluid, the hairspring sensor pointer is in the same position as the stepper motor sensor pointer. Conversely, if the rotor is subjected to the viscous resistance of the liquid, the balance spring will generate torque to counteract the viscous resistance, and finally reach a balance. At this time, the output signal of the photoelectric sensor is sent to the 16-bit microcomputer processor for data processing, and finally the viscosity value (mPa·s) of the liquid is displayed on the LCD with night vision function.

Packing list：Instrument host × 1, a set of rotors No. 1 to 4, rotor protection frame × 1, triangular base × 1, column × 1, instrument aluminum box and gold box × 1

[Note]Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.