Fully Automatic Viscosity Meter

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

Automatic Viscosity Measurement System

Instruction Manual

(NCY-X, 2018.3 Edition)

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

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

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

All in-house R&D designs, no copyright issues!

The Viscosity Measurement System is a specialized and automated testing device designed for determining the intrinsic viscosity, viscosity number, average polymerization degree, and viscosity average molecular weight of polymers. It is categorized into models NCY-X/2, NCY-X/4, and NCY-X/6 based on the number of test units configured in the system, with corresponding configurations of two, four, and six test units, respectively. These models can simultaneously accommodate 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.

The original determination of data validity, which was previously done manually,

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

The system will still display the flow of the solution in the capillary viscometers within each unit in real-time and visually.

The system will still automatically test and remove out-of-tolerance results repeatedly to obtain accurate flow times.

The system still retains the achievements from our 1990s national research project—the JWC precision temperature-controlled bath—continuing to deliver long-term temperature fluctuations and distributions within ±0.01℃. This ensures consistency of test data at any moment and position.

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

Automated liquid dispensing systems with a precision up to 0.1% for preparing sample solutions conveniently (one-touch dispensing).

A double-glass isolation design for sample bottles, ensuring the prepared solution dissolves quickly and evenly in the jingque temperature-controlled oscillating bath, free from interference by moisture.

Automatic Liquid Feeding Device, eliminating the need for manual feeding of the viscometer tube. A comprehensive unit that automatically filters the solution and delivers it to the viscometer capillary.

The automatic test has ended. The system will automatically extract waste fluid and await 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 fluid injection, soaking, recovery, cleaning, and drying without the need for manual intervention.

System Structure

Ncy-xThe Automatic Viscosity Measurement System consists of the following components:

1.1 NCY Test Unit, equipped with various sensors and paired with a central controller, can perform tests and also clean the capillary viscometer within the unit.

1.2 JWC series precision temperature controlled water baths for placement of test units, ensuring the unit operates in a normal working environment temperature (instruction manual included).

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

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

1.5 NCY-X Viscosity Auto-Measuring System, integrated into the central control system, ensures precise measurement of the time it takes for the solution to flow through a capillary.

1.6 Sample Inserter

Samples are dissolved in the solvent 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 automatic testing for a specific unit within the central system. After cleaning, perform a drying process.

1.8 Commercial or industrial computers with printers, keyboards, and monitors, etc.

1.9 NCY-X Central Controller for Full-Automatic Viscosity Testing System

Comprehensive automation of the entire system.

The entire system runs seamlessly on a Chinese interface using our in-house developed software (Copyright owned).

In light of our developed and produced NCY Automatic Viscosity Meter, which has achieved a market share of over 80% in the domestic market for the past two decades, our upgraded NCY-X Automatic Viscosity Measurement System is now compatible with the NCY Automatic Viscosity Meter. Use the NCY Automatic Viscosity Meter

Just as in the past three decades, we still provide our wide range of users with 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 the automatic viscosity measurement system

This automatic testing system consists of several components, which can be arranged in various configurations according to the user's arrangement, but its basic principle is:

2.1 Ensure all pipeline distances are as short as possible, while also considering actual operations such as filling and emptying. 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 between.

3. Sample Handling

3.1 Automated Solution Preparation

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

3.2 Quick Dissolution of Samples

Please refer to the instruction manual for the WR-2 Rapid Sample Dissolution Oscillator (optional accessory), which includes a dissolution bottle with a double-layered sleeve.

The dissolution process of the sample in the solvent can sometimes be very lengthy, taking one, even more hours, and requires oscillation at as high a temperature as possible to accelerate completion. Excessive temperature will lead to degradation, so the temperature should be precisely controlled.

4. Vacuum Pressure Adjustment

The automatic testing system operates under the action of vacuum pressure. This system is equipped with dedicated pressure sources for the in-flow, testing, transfer of cleaning fluid, and drying. Different vacuum pressures need to be adjusted according to the solvent composition of the samples and cleaning fluids.

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 liquid with a pump pressure gauge.

Vacuum pressure adjustment methods are as follows:

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

Press the mode key again to display H1After -2, the current upper limit of vacuum degree is displayed. Press the up and down keys to change the upper limit setting.

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.

During testing, only approximately 13mL of sample is required. Therefore, if pre-washing is necessary before testing, about 26mL of solution needs to be prepared for one cycle. Place the solution bottle on the autosampler, press the pre-wash button for the corresponding unit, and the solution bottle holder advances. Stop when the previous solution bottle (used for pre-washing) is in the position of the pipette. Lower the pipette, insert it into the volumetric flask, and at the same time, the volumetric flask for the test is automatically sealed. After initiating the test, the testing system will automatically draw the solution from the solution bottle, complete the pre-wash, and automatically drain the liquid.

Keep pressing the test button, another sample vial is sent to the testing station, wait for the test to start. Test complete, the sample vial returns to the starting position.

Sample Solution Bottle Location

Wash Pot: Insert the liquid tube into the front beaker, and the mouth of the following beaker will automatically seal.

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

Test complete, solvent bottle returned to the starting position.

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

Test completed; the system automatically discharges the waste liquid before proceeding to the next test.

6. Capillary Viscometer Cleaning and Drying

After a period of use, the viscometer should be cleaned.

First, place a solution bottle into the rinse position of the sampler (it can also be the test position), and the pipette will automatically insert into the bottom of the bottle (this is very important!!)

Inspect and ensure there is an adequate supply of cleaning fluids and solvents, as well as potable water. Check and confirm that containers for waste fluids and wastewater have sufficient remaining space.

Then, the entire cleaning-drying process can be initiated and completed.

Select "Detergent Immersion Cleaning" on the computer interface, the viscometer can complete the entire cleaning-drying process.

7. Routine Maintenance

7.1 Liquid Storage Bottle

The storage bottles require regular monitoring of the liquid level. For waste liquid collection, timely cleaning is necessary when the level is high; for new liquid types, timely replenishment is essential.

Remove the cap with care, noting the original state. Some may have a layer of polytetrafluoroethylene film attached to prevent corrosion. When reinserting the plastic tube, be sure to pay attention to the tube's numbering and the corresponding entrance marked on the label. When replacing the cap, ensure it is tightly sealed and check for a good seal.

7.2 Vacuum Pump

When this type of vacuum pump is in use, if the intake maintains vacuum (low pressure), it can cause the oil pump to spray oil outward from the intake. This machine has a dedicated program set in the control system to prevent oil spraying. However, after a considerable period of use, the oil level will also decrease. When the oil level in the pump side indicator is observed to be below "min," add vacuum pump oil from the intake to between the two scale lines on the indicator.

8. Key Technical Specifications

9. After-Sales Service

This product includes a 5-year free warranty for testing units.

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

Other parts, two-year free warranty.

Lifetime warranty.

ViscousDye testing is a manual craft that requires both education and technical skill, and it's getting difficult to manage now!

Ncy-xGlueDegree automatic testing system, the entire process is automated with minimal human intervention.

ViscousFully automatic experimental technology for the degree test, enabling:

The entire experimental process has achieved further automation.

Significantly reduced the skill requirements for laboratory personnel.

Effectively isolate personnel from the presence of hazardous du reagents.

Further streamline the experimental operation staff, effectively reducing expenses.

Effectively reduce managers' headaches.

Unique design, compatible with new and old machines, a star for users.