Technical Analysis of ZX-BS Automatic Closed Cup Flash Point Tester

The flash point of a petroleum product is a critical safety parameter, indicating the lowest temperature at which its vapors can ignite in air. Accurate and reliable determination of this property is essential for safe handling, transportation, storage, and classification of fuels, lubricants, and other volatile materials. The ZX-BS Automatic Closed Cup Flash Point Tester is engineered to provide precise, repeatable, and user-compliant measurements in accordance with international standards.

Core Functionality and Design Philosophy

The ZX-BS tester automates the traditional Pensky-Martens closed cup method, integrating advanced control systems to eliminate operator variability and enhance efficiency. Its primary design goal is to strictly adhere to the heating curves, test procedures, and performance criteria stipulated by major standards, primarily ASTM D93 and GB/T 261-2008 (Method A).

Key Technical Features and Components

1.Precision Temperature Control: At the heart of the instrument is a high-accuracy platinum resistance temperature sensor (PRT). Coupled with a sophisticated algorithm, the system ensures the heating rate precisely follows the mandated temperature rise curve. The instrument achieves an accuracy of ±1°C for flash points at or below 110°C and ±2°C for those above 110°C, with a broad measurement range from 40°C to 300°C.

2.Fully Automated Test Cycle: The instrument executes a complete test sequence autonomously:

a.Heating: Implements the standard-defined ramp rate.

b.Ignition: Utilizes an electric ignition system to introduce a test flame at programmed intervals, eliminating manual sparking.

c.Flash Detection: The system automatically detects the flash event.

d.Cooling: Post-test, a forced-air cooling mechanism rapidly brings the test cup to a safe temperature for the next sample, improving throughput.

e.Data Management: Results are displayed on a color LCD touch screen, stored in an onboard memory capable of holding 1000 test results, and printed via a built-in 40-line thermal printer.

3.Self-Diagnostic and Verification: To ensure ongoing reliability, the unit features a self-checking routine for critical components including the test arm mechanism, igniter, and printer, alerting the operator to potential maintenance needs.

4.Performance Validation: The instrument's repeatability is confirmed to conform to the statistical requirements of ASTM D93 and GB/T 261, a fundamental requirement for generating trusted laboratory data.

Technical Specifications at a Glance

1.Power Supply: AC 220V ±11V, 50Hz ±2.5Hz, with a power consumption of less than 350VA.

2.Environmental Operating Range: Designed to operate reliably in ambient temperatures between 10°C and 35°C, at a relative humidity below 85%.

3.Interface & Output: The user-friendly touchscreen controls the entire process, while the integrated printer provides immediate hardcopy records.

Application and Significance for Technicians

For the technical user, the ZX-BS represents a robust tool that standardizes flash point testing. Its automation reduces human error, increases lab efficiency, and ensures consistent adherence to standardized methods. The extensive data memory facilitates trend analysis and record-keeping. Understanding its operation—from sample introduction and standard selection to result interpretation and basic maintenance of the ignition and cooling systems—is key to leveraging its full capabilities.

In summary, the ZX-BS Automatic Closed Cup Flash Point Tester is a sophisticated, standards-compliant instrument that delivers accurate, repeatable, and automated flash point determination. Its design prioritizes precision, user operation, and data integrity, making it a valuable asset in any petroleum testing laboratory focused on quality control and safety compliance.

GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/