的凯森-ST90A全自动密封试验机适用于食品、药品、医疗器械、日化、汽车、电子元件、文具等行业的包装袋、瓶、管、罐、盒等的密封性测试。还可以测试试件经过跌落和压力试验后的密封性能。

应用行业：

1) Food Industry: Soft Packaging: Bagged milk powder, cheese, coffee sticks/packs, mooncakes, seasoning packets, snack foods, tea bags, bagged rice, potato chips, pastries, puffed foods, Tetra Pak cartons, sunflower seeds… food bags of any shape, material, and size. Semi-rigid Packaging: chilled meat, fruit and vegetable salads, trays, soft canned goods, yogurt, ketchup, tubled potato chips (snack foods), jelly… semi-rigid packaging of any shape, material, and size. **硬质包装：**罐装奶粉、饮料瓶、油桶、罐头食品、饼干桶、咖啡瓶、铝罐、调味品瓶……任何形状、材料和尺寸的硬质包装。

2) Pharmaceutical Industry: Sealed Containers: Vials, ampoules, syringes, oral liquids, eye drops, sterile bags, infusion bags/bottles, liquid injections, powder injections, BFS bottles, API bottles, BPC bottles, FFS bottles, etc.—any shape, material, and size of sealed containers.吸塑包装：粉末、片剂、胶囊、隐形眼镜等样品，采用吸塑包装进行包装。小顶空包装：粉剂包装、小剂量粉末等，顶空极小。

3）其他：各种铝箔袋、湿巾、化妆品包装等。

技术特点：

1）微机控制，测试参数可设定，测试过程全自动化；

2）液晶屏显示测试过程，同时显示设定压力、设定保压时间、实时压力等参数；

3）PVC操作面板，全新按键布局，操作简单方便；

4）密封桶采用进口优质有机玻璃管材，壁厚15mm，行业最厚；

5）保压时间、试验压力、压力补偿比例均可预设，试验过程中一键式操作；

6）精密进口气动元件，确保密封性能优越，质量可靠；

7) Automatic constant pressure air replenishment based on the pressure compensation ratio during the test, eliminating the need for manual operation;

8）试验后自动反冲洗卸压，节省更多操作时间；

9) The instrument can be equipped with a thermal or dot matrix printer to print test results and test conditions, and the print report format can be customized;

10) The instrument has a built-in compressed air filter and pressure regulating device, which is externally located for easy drainage and cleaning of impurities, effectively ensuring the safe operation of internal components;

11）为保证仪器正常、无干扰运行，仪器采用三电源独立供电方式。主控制器、压力接收模块、压力控制模块均具有独立的电源。

12）进口压力传感器，结合精密快速继电器，压力补偿响应更快，防止压力超调，始终保持设定压力。 It features a built-in pressure calibration module and supports multi-point pressure calibration for convenient third-party calibration and verification.

参考标准：

该仪器符合多项国家和国际标准，包括GB/T 15171软包装密封性能测试方法、ASTM D3078气泡法测定软包装泄漏标准测试方法等。

测试原理：

1) 通过对真空室抽真空，浸入水中的样品的内部和外部之间产生压力差。观察气体从样品中逸出以确定密封性能。

2）浪漫。