Technical Overview: ZX-ND Automatic Solidifying Point & Pour Point Tester

For technical professionals in transformer manufacturing, power utilities, refineries, and related fields, the accurate determination of a petroleum product's low-temperature flow characteristics is critical. The ZX-ND Automatic Solidifying Point and Pour Point Tester represents a significant advancement in automating this essential analysis, combining precise microcontroller-based control with efficient thermoelectric cooling.

Core Technology & Design Philosophy

At its heart, the instrument employs a 16-bit MCU (Microcontroller Unit) as its control core. This allows for sophisticated management of the test sequence, data acquisition, and temperature regulation, ensuring procedures adhere strictly to standardized methods like China's GB510-83. The key to its performance is the integrated thermoelectric cooling system. This solid-state cooling solution provides rapid, controllable, and maintenance-friendly temperature reduction without the complexities of traditional cryogenic baths.

Key Technical Features and Performance Indicators

The ZX-ND is engineered for reliability, speed, and precision within a operational range of +10°C to -60°C. Its primary technical specifications include:

1.Measurement Accuracy: ±1°C, ensuring reliable and consistent data.

2.High Resolution: Temperature readings are displayed with a 0.1°C resolution, allowing for detailed observation of the sample's behavior.

3.Rapid Cooling Performance: The system achieves a temperature differential of ≥60°C within 15 minutes, significantly speeding up the testing cycle. Its maximum cooling capacity provides a differential ≥65°C between outlet and indicated temperature.

4.Standard Compliance: Measurement results are confirmed to be within the specified range of the GB510-83 standard, making it suitable for quality control and specification testing.

5.Optimized Sample & Utility Requirements: Requires only 20ml of sample oil per test and is designed to operate with a cooling water pressure of 4.9×10 ~ 49×10⁵ Pa at a flow rate of 1.5 liters/minute.

6.Robust Design: Operates in an ambient temperature of 25±10°C and humidity <85% RH, with a maximum power dissipation of ≤250W from a ~220V±0.5V supply.

Operational Advantages for the Technician

From a user perspective, the ZX-ND offers several practical benefits:

1.Enhanced Efficiency: Automated testing and fast cooling drastically reduce manual intervention and overall analysis time compared to manual methods.

2.Improved Accuracy & Repeatability: The MCU-controlled process minimizes human error in observation and temperature control, leading to superior repeatability and stable performance.

3.Clear Data Presentation: The large LCD display provides an intuitive interface for monitoring the test progress and final results.

4.Simplified Maintenance: The thermoelectric cooling system and solid-state electronics reduce the need for frequent maintenance associated with mechanical compressors or bath fluids.

Conclusion

The ZX-ND Automatic Tester is a technically sound solution for modern laboratories requiring dependable solidifying and pour point data. Its integration of automatic control, efficient solid-state cooling, and compliance with industry standards makes it a valuable instrument for technicians focused on obtaining accurate, reproducible results in petroleum product analysis efficiently and with greater operational ease.