not available for EP0283543of corresponding document: US4779449 Leak detector operating according to the countercurrent principle is used in a leak detection method and includes a first high vacuum pump having an inlet which is connected to an inlet of the leak detector, a second high vacuum ...
Leak test with the principle of pressure differencethe minus air pressure testing methodA effective suspending apparatusThis paper introduces acharacteristic air... Z Zhu - 《》 被引量: 1发表: 2002年 Leak tester refined for easier use WITT-GASETECHNIK SAYS it has further optimised its leak tester...
It can test the seal capability of soft packaging accurately, which provides scientific date for relative technical requirement. It also can test the specimen which has done drop and compression test. Work principleThrough vacuumize the vacuum chamber to let the sample d...
The instrument also can be used to test seal performance of specimens after falling and compression tests. Principle Firstly submerge the specimen in the water within the vacuum chamber, and then evacuate the vacuum chamber to form diffe...
for gas device function test(2) heat sealing strength(2) relay(2) plastic bags(1) breathing apparatus and face mask(1) injection pump(1) injection(1) for extruded products(1) for filters(1) for the pharmaceutical industry(1) Submit ...
Work principle Through vacuumize the vacuum chamber to let the sample dipped in the water have an inside and outside pressure difference. By observe the air leak or water permeate case to judge the seal capability of the sample. air pressure difference between the i...
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1.This paper introduces the principle and the test method of several inspection and measuring instruments used for leak testing in production process today,and the try out and calibration of leak testing machine practically used and the influence of temperature on measurement.介绍了目前生产过程中泄漏...
Detection system draft and detector working principle: >>> COMMONLY USED GAS DETECTION LIST No. Detection gas Range Accuracy 90% response time Min readout Low/high alarm 1 PH3 0-5ppm ±5%(F.S) ≤25s 0.01ppm 0.3ppm/5ppm 2 O2 0-30%vol ±5%(F.S) ≤15s...
Detection system draft and detector working principle: COMMONLY USED GAS DETECTION LIST No. Detection gas Range Accuracy 90% response time Min readout Low/high alarm 1 PH3 0-5-2000ppm ±5%(F.S) ≤25s 0.01ppm 0.3/5ppm 2 O2 0-30% ...