Fully Automatic Viscosity Meter

Ncy-xSeries (2-digit, 4-digit, 6-digit)

Viscosity Automatic Measurement System

Manual

(NCY-X, 2018.3 Edition)

Over three decades of experience in research, manufacturing, and service for 0.01℃ precision temperature-controlled baths

Twenty-five years of experience in researching, manufacturing, and providing services for NCY Automatic Viscosity Meters

Self-owned intellectual property; mechanical & electronic, hardware & software

All自主研发设计, no intellectual property disputes!

The viscosity measurement system is a specialized automated testing equipment designed and developed for the characteristic viscosity, viscosity number, average polymerization degree, and viscosity average molecular weight of polymers. Depending on the number of test units configured in the system, it is categorized as NCY-X/2, NCY-X/4, and NCY-X/6, corresponding to dual, quadruple, and sixfold test unit configurations, respectively. These setups can simultaneously support two, four, or six viscometers.

UtilizeNcy-xViscosity Automatic Measurement System Ahead:

The measurement of the time required for a certain amount of solution, previously measured manually, to flow through a capillary.

Originally, the determination of data validity was manually conducted.

Just like the NCY Automatic Viscosity Meter, it will still be executed by the system.

The system will still display the fluid flow in the capillary viscometers within each unit in real-time and vividly.

The system will still automatically test and eliminate out-of-tolerance results repeatedly, ensuring accurate flow time.

The system still features the JWC precision temperature-controlled槽, a result of our 1990s national research project, and continues to deliver long-term temperature fluctuations and distribution better than ±0.01℃. This ensures consistency of test data at any moment and location.

In addition, the automatic testing system will also feature the following new functions:

Automated liquid dispensing system with accuracy up to 0.1% concentration, capable of conveniently preparing sample solutions (one-touch liquid preparation).

Double-glazed isolation design of the sample bottle ensures that the prepared solution dissolves quickly and evenly in the jingque temperature-controlled oscillating bath without interference from water.

Automatic Liquid Delivery Device, eliminating the need for manual feeding into the viscosity tube; a comprehensive unit that automatically filters the solution and delivers it to the capillary of the viscometer.

Automatic test completed; the system will automatically extract waste liquid and wait for the arrival of the next sample to automatically complete the capillary rinsing and testing.

When cleaning capillaries is required, simply activate the cleaning program, and the system will autonomously complete the entire process of liquid injection, soaking, recovery, cleaning, and drying, without the need for manual intervention.

1. System Structure

Ncy-xThe automatic viscosity measurement system consists of the following components:

1.1 The NCY test unit, equipped with a variety of sensors and paired with a central controller, is capable of performing tests and also cleaning the capillary viscometer within the unit.

1.2 JWC series precision thermostatic water baths for placing test units, ensuring the units operate in a normal working environment temperature (instruction manual included).

1.3 PY Series Automatic Mixture Dispenser (optional, manual included).

1.4 WR-2 Rapid Sample Solvent Constant Temperature Oscillator (optional, manual included), equipped with a double set of solvent bottles, operates at precise temperatures while effectively avoiding moisture interference during operation.

1.5 NCY-X Viscosity Auto-Determination System, included in the central control system, enabling precise measurement of the time it takes for the solution to flow through the capillary.

Sampler

The sample is dissolved in the dissolution bottle and placed here. After the system is activated for testing, the required solution will be automatically filtered through a sand core and sent to the capillary.

1.7 Cleaning System

Pre-set various detergents to clean the viscometer, filter, and all fluid lines during the automatic testing for a specific unit in the central system. Upon completion of the cleaning, a drying process is conducted.

1.8 Commercial or industrial computers with a printer, keyboard, and monitor, etc., as terminals.

1.9 NCY-X Automatic Viscosity Test System Central Controller

Comprehensive automation process for the entire system.

The entire system operates seamlessly on a Chinese interface, utilizing our independently developed software (Copyright owned).

In light of our developed and produced NCY Automatic Viscosity Meter, which has held an 80%+ market share domestically for nearly two decades, our upgraded NCY-X Automatic Viscosity Measurement System is now compatible with the NCY Automatic Viscosity Meter. Use of the NCY Automatic Viscosity Meter

As in the past three decades, we still provide our vast user base with products featuring our own

Products with intellectual property rights in design, hardware, and software, thus, we can still provide perfect after-sales service to a wide range of customers.

2. Layout of Automatic Viscosity Measurement System

This automated testing system consists of several components and can be arranged in various configurations according to the user's requirements, but its fundamental principle is:

2.1 Ensure all pipe distances are as short as possible while also considering actual operations such as filling and pouring. The cover image illustrates a typical reasonable layout.

2.2 The pipeline connecting from the central control unit to the viscometer must start from the central control system and gradually decrease, without any rise in the middle.

3. Sample Processing

3.1 Automated Solution Preparation

See the PY Automatic Mixture Instrument manual (optional accessories).

3.2 Fast dissolution of samples

See WR-2 Rapid Sample Dissolution Oscillator manual (optional accessory), equipped with a double-layered isolation sleeve sample bottle.

The dissolution process of the sample in the solvent can sometimes be quite lengthy, taking one hour or even more. It requires oscillation at as high a temperature as possible to accelerate the process. Excessive temperature will lead to degradation, so the temperature needs to be precisely controlled.

4. Vacuum Pressure Adjustment

The automatic testing system operates under the influence of vacuum pressure. This system is equipped with dedicated pressure sources for the injection, testing, transmission of cleaning fluid, and drying. Different vacuum pressures need to be adjusted according to the solvent composition of the samples and cleaning fluid.

Vacuum Pressure Adjustment Method:

There are two pressure gauges on the central control system panel: one for adjusting and controlling the working pressure of the sample solution with a constant pressure gauge, and the other for regulating and controlling the working pressure of the washing fluid with a pump pressure gauge.

Vacuum pressure adjustment methods are as follows:

Press the mode key (left button), until L appears0-2 shows the lower limit of the current vacuum setting. Press the up and down keys to adjust the upper limit setting.

Press the mode key again to display H1After -2, the current maximum vacuum level is displayed. Press the up and down keys to adjust the maximum setting value.

Note: The vacuum pressure value is negative.

5. Inlet and Testing

Prepare a clean empty solvent sample bottle, remove the solvent bottle containing the dissolved sample from the oscillator, pour half of its contents into the empty solvent bottle, and place them together in the corresponding sampling unit position.

During testing, only approximately 13mL of sample is required. Therefore, if pre-washing is needed before testing, approximately 26mL of solution must be prepared in one go. Place the solvent bottle on the autosampler, press the pre-wash button for the corresponding unit, the solvent bottle rack advances, stop when the previous solvent bottle (for pre-washing) is at the pipette position, then lower the pipette into the flask, while the flask for the test is automatically sealed. After initiating the test, the testing system will automatically draw the solution from the solvent bottle, complete the pre-wash, and then automatically drain the fluid.

Keep holding the test button, another solution bottle is sent to the test station, wait for the test to start. Test complete, the solution bottle is returned to the starting position.

Sample Solution Bottle Location

Wash Pot: The liquid suction tube is inserted into the front beaker, and the mouth of the rear beaker automatically covers it.

Test port: Insert the liquid tube into the vial at the back.

Test complete, solvent bottle returned to starting position.

After initiating the test program for this unit on the computer, the unit automatically enters the working state. The subsequent operations are performed automatically by the system. The operator can view the progress of the unit's testing on the screen, and a dialog box will automatically pop up if any issues arise during the test.

Test completed; after the system automatically discharges the waste liquid, it proceeds to the next test phase.

6. Capillary Viscometer Cleaning and Drying

Viscometer should be cleaned after using for a period of time.

First, place a solvent vial into the rinsing position (or test position) of the sampler, and the pipette will automatically insert into the bottom of the vial (this is crucial!!)

Check and ensure there is an adequate supply of detergents, solvents, and potable water. Verify that containers for waste liquids and wastewater have sufficient remaining space.

Then, you can start and complete the entire cleaning-drying process.

Select "Wash Solution Soak Cleaning" on the computer interface, the viscometer can complete the entire cleaning-drying process.

7. Routine Maintenance

7.1 Liquid Storage Bottle

The storage bottle requires regular monitoring of the liquid level. For waste liquid collection, timely cleaning is necessary when the level is high; for new liquid, timely replenishment is required.

When removing the bottle cap, note the original installation state. Some may come with a layer of polytetrafluoroethylene film, which is to address the corrosion issue of the cap. When reinserting the plastic tube, be sure to pay attention to the tube's numbering and the corresponding entrance indicated on the bottle label. When replacing the cap, ensure it is tightly sealed and pay attention to the seal.

7.2 Vacuum Pump

This type of vacuum pump, when in use, if the suction port maintains a vacuum (low pressure), it may cause the oil pump to spray oil outward from the suction port. This unit has been equipped with a special program in the control system to prevent oil leakage. However, after a considerable period of use, the oil level may decrease. When the oil level in the pump side's oil gauge falls below the "min" mark, oil should be added to the suction port of the vacuum pump until it reaches the second graduation line on the oil gauge.

8. Key Technical Specifications

9. After-Sales Service

This product comes with a five-year free warranty on the test unit.

Computer components, adhering to the maintenance and repair standards of the computer industry.

Other parts come with a two-year free warranty.

Lifetime warranty.

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