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Detection Of The Use Of The Instrument
Jul 06, 2017

Detection equipment is a manual method to simulate the nature of the combination of various environmental testing equipment, is the development, development of new products and testing the quality of products testing equipment. Is our essential test equipment. So the proper use and maintenance of environmental and reliability test equipment is particularly important. Detection equipment is a sophisticated, expensive equipment. Proper use and operation of the instrument can not only provide accurate basis for the detection staff, but also to enable the normal operation of the test equipment and extend the life of its equipment. So how is the use and operation of the instrument is correct?

When conducting environmental tests, the user is familiar with the performance, test conditions, test procedures and test techniques required for the test. To understand the technical performance of the test equipment used, it is necessary to understand the structure of the equipment. Detection Instrument Be familiar with the operation and performance of the controller. Also read the operating instructions of the test equipment manual, which can avoid the operation error caused by the abnormal operation of the test equipment to cause damage to the test sample, the test data is not correct.

When a reasonable choice of test equipment. To ensure that the test is normal, should be based on the different conditions of the test sample, select the appropriate test equipment, Detection Instrument test samples and test chamber between the effective volume to maintain a reasonable ratio. For the test of the heat test sample, the volume shall not be greater than one tenth of the effective volume of the test chamber. The volume of the sample shall not be greater than one fifth of the effective volume of the test chamber.

The user should place the test sample correctly. The location of the test specimen should be separated from the box wall by more than 10 cm and the plurality of samples should be placed on the same plane as possible. Sample placement should not plug the outlet and return air outlet, Detection Instrument to the temperature and humidity sensor should also be set aside a certain distance. To ensure that the test temperature is correct.

The environmental tests required for the media to be added to the test should be properly added according to the test requirements. Such as hot and humid test chamber water is a certain requirement, test chamber water resistivity shall not be less than 500 Europe. M, the general tap water resistivity 10 - 100 Europe. Rice, Detection Instrument distilled water resistivity 100-1000. M, deionized water resistivity 10000-100000 Europe. M, so the hot and humid test water to use distilled water or deionized water, and must use fresh, because the water and air contact, vulnerable to carbon dioxide and dust pollution, water can dissolve the nature of a variety of substances, a long time, Resistivity drops. Now there is a pure water on the market more economical, and convenient, its resistivity is equivalent to distilled water.

Such as the use of hot and humid chamber. Damp heat test box with wet ball gauze (wet ball paper) is a certain requirement, not any gauze can be used, because the relative humidity is the distance between the temperature and humidity difference, strictly speaking, and the local atmospheric pressure, Detection Instrument wind speed The The wet bulb temperature indication is related to the amount of water inhaled by the gauze and the surface evaporation. These are directly related to the quality of gauze, so the weather requirements, wet ball gauze must be woven into a special "wet ball gauze." Otherwise it is difficult to ensure that the wet bulb thermometer indicates the correctness, that is, the humidity is correct. In addition, the placement of the wet ball gauze is also clearly defined, gauze length: 100mm, tightly wound sensor probe, the probe from the humidity cup 25-30mm, Detection Instrument gauze dipped into the cup, so as to ensure the correctness of the equipment control and humidity.