In the field of modern chemical analysis, the determination of trace moisture is an important step in evaluating the purity and quality of samples. Taking the YT-11133B fully automatic micro moisture analyzer as an example, its core technical indicators reflect the comprehensive ability of the instrument in moisture detection. This article will focus on its technical characteristics and analyze the core technical indicators of the fully automatic micro moisture analyzer.

1、 Measurement method and accuracy

This instrument uses the Karl Fischer microcoulometric method for moisture determination. This method is based on the quantitative relationship between water and reagents in chemical reactions, and calculates the water content by measuring the amount of electricity consumed during the electrolysis process. This method has high selectivity and sensitivity, and is suitable for samples of various forms.

Accuracy is one of the key indicators for measuring instrument performance. The instrument has a deviation range of ± 3 μ g when measuring water content from 10 μ g to 1mg; When the moisture content is higher than 1mg, the measurement deviation should be controlled within 0.3%. This precision design can meet the accurate measurement requirements for moisture content in conventional analysis.

2、 Measurement range and resolution

The measurement range of the instrument is 3 μ g to 100mg, which can adapt to the detection of samples ranging from trace amounts to higher moisture content. The resolution reaches 0.1 μ g, which means that the instrument can identify small changes in moisture, providing the possibility for fine analysis.

3、 Automation and operational convenience

The instrument adopts microcomputer control technology to achieve automation of the analysis process. The entire process from sample detection to result printing is automatically completed by the system. Operators can input parameters and view results through a 7-inch LCD touch screen, with an intuitive interface design that reduces the complexity of manual operations.

4、 Data output and system functions

The instrument is equipped with a 16 character needle printer, which can directly output detection results. The system supports data storage and clock display, and has automatic unit conversion function (such as conversion between μ g water and ppm). In addition, the instrument is equipped with a built-in self diagnostic function, which can prompt the operating status and fault information, improving the reliability during use.

5、 Environmental adaptability and safety

The working power supply of the instrument is AC 220V ± 10%, 50Hz, which is suitable for the power supply conditions of conventional laboratories. The operating environment temperature is 5-40 ℃ and the humidity is below 80%, which ensures that the instrument can operate stably in most laboratory environments. Compact in size (170 × 170 × 110mm), weighing 1.25kg, easy to place and move.

6、 Application scope and adaptability

This instrument is suitable for the determination of trace moisture in liquid, gas, and solid samples. Its technical specifications refer to multiple national standards (such as GB/T11133, GB/T6283, etc.), enabling it to meet the routine requirements for moisture detection in industries such as petrochemicals, pharmaceuticals, and food.

summary

The core technical indicators of the fully automatic micro moisture analyzer cover measurement methods, accuracy, measurement range, automation level, data output, and environmental adaptability. These indicators collectively determine the analytical capability and applicable scenarios of the instrument. By selecting and using instruments reasonably, operators can obtain accurate and reliable moisture detection results, providing support for quality control and research and development work in related fields. In practical applications, it is recommended that users set parameters reasonably and maintain them regularly based on specific sample characteristics and testing requirements to ensure the stable performance of the instrument.