Kinematic Viscosity Tester
The ZWKV3003 determines the kinematic viscosity of liquid petroleum products (Newtonian fluids) in accordance with ASTM D445 and GB/T 265 standards.
Featuring a 4-hole constant temperature bath, touchscreen control, and built-in thermal printing, it delivers automated viscosity calculation and reliable temperature stability up to 100°C.
Product Overview
The ZWKV3003 Kinematic Viscosity Tester measures the time required for a fixed volume of liquid to flow through a calibrated glass capillary viscometer under gravity at a precise, constant temperature. The instrument automatically calculates the kinematic viscosity (mm²/s) and dynamic viscosity based on the measured flow time and tube constants.
Equipped with an intuitive touchscreen interface, stainless steel heating/stirring assembly, and an integrated thermal printer, the ZWKV3003 streamlines oil viscosity testing for petroleum laboratories, transformer oil inspection, lubricant blending, and research facilities.
Functions and Value:
1. 4-Hole Constant Bath: Accommodates up to 4 viscometer tubes simultaneously for parallel sample testing or preheating.
2. Smart Touchscreen Operation: Clear bilingual (English/Chinese) color display for real-time monitoring and easy parameter setup.
3. Automated Calculation & Printing: Automatically records flow time, calculates kinematic viscosity values, and generates instant thermal printouts.
4. High-Precision Temperature Control: Digital control up to 100°C with an accuracy of 0.01°C, driven by reliable stainless-steel heating and stirring mechanisms.
5. Flexible Test Cycles (1–4 Runs): Supports 1 to 4 test cycles per tube; conforms to standard 4-run averaging protocols with automatic data validation.
6. Durable & Corrosion-Resistant: Robust construction featuring a corrosion-proof coated chassis, heavy-duty glass bath, and stainless steel internals.
7. Internal Data Storage: Stores historical test results with on-screen review, re-printing, and management functions.
Technical Details
| Parameter | Specification |
|---|---|
| Model | ZWKV3003 |
| Test Method | Glass Capillary Viscometer Method |
| Applicable Standards | ASTM D445, GB/T 265 |
| Number of Bath Holes | 4 holes |
| Temperature Control Range | Room temperature to 100°C |
| Temperature Resolution | 0.01°C |
| Test Cycles | 1 to 4 runs (adjustable) |
| Standard Capillaries | 0.8 mm, 1.0 mm, 1.2 mm, 1.5 mm |
| Display & Operation | LCD Touchscreen (English / Chinese) |
| Data Processing | Automatic calculation, printing, and storage |
| Heating Power | ≤ 1500 W |
| Input Power Supply | AC 220V ± 10V, 50 Hz |
| Ambient Temperature | 0°C to 40°C |
| Relative Humidity | < 80% |
Model Selection Guide
| Item NO. | Max Current | Measuring Range | Main Features | Recommended Application |
|---|---|---|---|---|
| GDZR-10A | 10A | 100μΩ - 20KΩ | Portable, built-in discharge alarm | Small to medium distribution transformers |
| GDZR-20A | 20A | 10μΩ - 10KΩ | High-speed testing, heat dissipation | Medium-sized power transformers |
| GDZR-40A | 40A | 1μΩ - 2KΩ | Dual-channel measurement, high current | Large-scale power transformers |
| GDZR-40A | Three-Phase 10A | 100μΩ - 10KΩ | Three-phase simultaneous measurement | Yn-type transformers, time-saving |
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Parts List
| Item NO. | Max Current | Measuring Range | Main Features | Recommended Application |
|---|---|---|---|---|
| GDZR-10A | 10A | 100μΩ - 20KΩ | Portable, built-in discharge alarm | Small to medium distribution transformers |
| GDZR-20A | 20A | 10μΩ - 10KΩ | High-speed testing, heat dissipation | Medium-sized power transformers |
| GDZR-40A | 40A | 1μΩ - 2KΩ | Dual-channel measurement, high current | Large-scale power transformers |
| GDZR-40A | Three-Phase 10A | 100μΩ - 10KΩ | Three-phase simultaneous measurement | Yn-type transformers, time-saving |
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Frequently Asked Questions
Contact our engineers for technical support and application guidance.
It is designed to measure the kinematic viscosity of liquid petroleum products behaving as Newtonian fluids, such as transformer oils, lubricating oils, fuels, and hydraulic fluids.
Yes. The 4-hole bath allows simultaneous testing or preheating of multiple capillary tubes at the same constant bath temperature, significantly improving laboratory throughput.
After completing the preset test runs (typically 1 to 4), the instrument automatically multiplies the flow time by the capillary constant. If 4 runs are conducted per national/international standards, it calculates the valid average according to the standard deviation rules and prints the report.
The standard packing list includes 4 capillary viscometers with inner diameters of 0.8 mm, 1.0 mm, 1.2 mm, and 1.5 mm. Custom sizes are available upon request.
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