Overview
The NIRUN NDJ-8S digital Viscometer is an advanced technology precision measuring instrument for viscosity detection of a variety of fluids. It uses a high-subdivision drive stepper motor to ensure accurate and smooth speed, and has an LCD liquid crystal with blue backlight display to visually display key data such as viscosity, speed, torque, etc.
Features
1. Adopt patented technology to realize single-turn multiple sampling and overcome traditional drawbacks.
2. High subdivision drive stepper motor swirl/spin, accurate and stable speed, not affected by AC voltage frequency changes.
3. With timing function, good conformity data can be obtained for thixotropic non-Newtonian liquids.
4. Stepping motor direct drive, no noise, convenient speed change, good reliability, no jitter.
5. LCD liquid crystal with blue backlight, directly display viscosity, speed, percentile torque, rotor at the current speed can be measured maximum viscosity value, viscosity value continuous change, over range sound and light alarm.
6. Computer full scale linear correction, measurement accuracy is +/- 1.0% of full scale.
7. Switching Power Adapter, wide power input, good anti-interference.
8. Optional RTD temperature Probe to monitor sample temperature in real time.
9. Optional RS232 interface, connect the micro printer to print measurement data in real time.
Principle
The instrument drives the rotor to swirl/spin at a uniform speed in the sample through a high-subdivision drive stepper motor. The rotor is subjected to the resistance of the sample Tack to generate torque, which is proportional to the viscosity of the sample. The sensor inside the instrument detects this torque, which is processed by a microcomputer control system and linearly corrected by a computer full scale, and finally displays the viscosity value directly on the LCD display screen.
Applications
Inks, Glue, Latex, Adhesive solvent, polymer solution, petroleum, paints, solvents, cosmetics, milk products, fruit juice
Steps
1. Install the appropriate rotor and connect the instrument.
2. Pour the sample into a container with a capacity of 300 to 400 ml.
3. Turn on the power supply and select the required rotor number and speed through the instrument.
4. Immerse the rotor into the sample at the specified mark.
5. Start the measurement, the instrument will automatically display data such as viscosity.
6. After the measurement is completed, turn off the power and clean the rotor.
Notice
• Please ensure that the instrument is placed horizontally before use.
• Select the appropriate rotor and rotational speed combination based on the estimated viscosity to ensure that the measurement value is within the range.
• When immersing in the rotor, avoid bubbles and ensure that the immersion depth meets the requirements.
• If there is an over-range alarm during the measurement process, please stop immediately and replace it with a more suitable rotor or speed.
• Keep the rotor and sample container clean to prevent cross-contamination.
• Optional accessories such as RTD Temperature Probes, micro printers, etc. need to be connected and used according to the corresponding instructions.
• When the instrument is not in use, please store it properly in a drying environment.
