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-controlled baths

Over two decades of experience in the research, manufacturing, and service of NCY automatic viscometers

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

All proprietary R&D designs; no copyright issues!

The viscosity measurement system is a specialized, automated testing equipment designed for the specific viscosity, viscosity number, average molecular weight, and average polymerization degree 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, with corresponding configurations of two, four, and six test units, respectively. These setups can simultaneously support the use of two, four, or six viscometers.

UtilizeNcy-xViscosity Automatic Measurement System Ahead:

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

The original determination of data validity, previously conducted 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 continue to automatically retest and eliminate out-of-spec results, achieving accurate flow times.

The system still features the JWC precision temperature control baths, a result of our 1990s national research project, and will continue to deliver long-term temperature fluctuations and distributions better than ±0.01°C, ensuring consistency of test data at any moment and location.

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

An automatic liquid preparation instrument with a concentration accuracy of up to 0.1%, capable of conveniently preparing sample solutions (one-click liquid preparation).

Double-layer glass isolation designed sample bottles, allowing the prepared solution to dissolve rapidly and evenly in a precisely controlled oscillating bath without interference from moisture.

Automatic liquid delivery system, no longer requiring manual feeding of the viscometer tube, a comprehensive device that automatically filters the solution and delivers it into the viscometer capillary tube.

Automatic testing completed, the system will automatically extract waste liquid 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 liquid injection - soaking - recovery - cleaning - drying, without the need for manual intervention.

System Structure

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

1.1 NCY Test Unit, equipped with various sensors and paired with a central controller, is capable of performing tests and cleaning the capillary viscometer within the unit, among other tasks.

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

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

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

1.5 NCY-X Viscosity Automatic Measurement System, integrated into the central control system, performs an accurate measurement of the time taken for the solution to flow through the capillary.

1.6 Sample Inserter

Samples are dissolved in the dissolution vial and placed here. After the system initiates testing, the required solution will be automatically filtered through a sand core and sent to the capillary.

1.7 Cleaning System

Pre-set various cleaning fluids. Under the cleaning program for a specific unit in the central system, clean the viscometer, filter, and all fluid lines during the automatic testing. Upon completion of the cleaning, dry the unit.

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

1.9 NCY-X Automatic Viscosity Test System Central Controller

Comprehensive automation of the entire system.

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

In light of our developed and manufactured NCY Automatic Viscosity Meter, which has achieved an occupancy rate 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 customers with our own...

Intellectual property rights-protected product designs, software, and hardware, ensuring we 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 fundamental 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 from the central control unit to the viscometer must start from the central control system and gradually decrease, with no peaks in between.

3. Sample Processing

3.1 Automatic Solution Preparation

See PY Automatic Mixture Dispenser manual (optional accessories).

3.2 Rapid Sample Dissolution

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

The dissolution process of the sample in the solvent can sometimes be quite lengthy, taking up to 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 vacuum pressure. This system is equipped with different pressure sources specifically for the liquid intake, testing, transmission of cleaning fluid, and drying. Different vacuum pressures need to be adjusted according to the sample and the varying solvent components of the cleaning fluid.

Vacuum Pressure Adjustment Method:

Two pressure gauges are located 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 method is as follows:

Press the pattern 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 pattern key again to display H1After -2, the current maximum vacuum level is displayed. Press the up and down keys to change the maximum set 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 sample unit position.

During testing, only approximately 13mL of sample is required. Therefore, if rinsing is needed before testing, you will need to prepare about 26mL of solution at a time. Place the solvent bottle on the autosampler, press the rinse button for the corresponding unit, and the solvent bottle holder advances. Stop when the previous solvent bottle (for rinsing) is in the liquid tube position. Lower the liquid tube and insert it into the volumetric flask, while the flask's mouth is automatically covered. After starting the test, the testing system will automatically draw the solution from the solvent bottle, complete the rinse, and automatically drain the liquid.

Continue holding the test button, another sample bottle is sent to the testing station, awaiting test initiation. Test complete, the sample bottle returns to the starting position.

Sample solution bottle location

Wash position: The liquid 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, sample bottle returned to 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 monitor the progress of the unit's testing on the screen, and a dialog box will automatically pop up if an issue is encountered during the test.

Test completed; after the system automatically discharges waste fluid, the process moves on to the next test.

6. Capillary Viscometer Cleaning and Drying

Viscometers require cleaning after being used for a period of time.

Firstly, place a sample vial into the rinsing position (or test position) of the sampler, where the pipette automatically inserts into the bottom of the vial (this is crucial!!).

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

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

Select "Wash Solution Immersion Cleaning" on the computer interface, and 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 should be ensured.

When removing the bottle cap, pay attention to the original state of installation. Some may come with a layer of Teflon film, which is to address the issue of cap corrosion. When reinserting the plastic tube, be sure to note the tube number and the corresponding inlet indicated on the bottle label. When replacing the cap, make sure it is tightly sealed and check for a proper seal.

7.2 Vacuum Pump

This type of vacuum pump, when in use, if the suction inlet maintains vacuum (low pressure), it may cause the oil pump to spray oil outward from the suction inlet. The machine has been equipped with a special program 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's oil gauge falls below the "min" mark, you should add vacuum pump oil to the oil gauge between the first and second marks in the suction inlet.

8. Key Technical Specifications

9. After-Sales Service

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

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

Other parts come with a two-year free warranty.

Lifetime maintenance.

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GlueFully automated experimental technology for degree testing, enabling:

The entire experimental process has achieved further automation.

Effectively reduced the skill requirements for laboratory personnel.

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