Small high and low temperature hot and humid test chamber common common obstacles to clear:

1, small high and low temperature hot and humid test chamber common in high temperature test, such as the temperature rise can not reach the test temperature value, you can check the electrical system, one by one to remove the obstruction. If the temperature rise slowly, it is necessary to check the wind circulation system, look at the wind circulation adjustment baffle is open normally, on the contrary, to check the wind cycle motor running is normal. Such as the temperature overshoot sharp then it is necessary to set the PID set parameters. If the temperature rises directly, the overtemperature cover, then, the controller is out of order, the control instrument must be replaced.

2, small high and low temperature hot and humid test chamber common low temperature can not reach the test indicators, then you have to inspect the temperature change is the temperature drop is very slow, or the temperature to a certain value after the temperature has rebounded, the former will check , Do the low temperature test before the matter room drying, so that things dry after the test sample into the room and then do the test, the matter of the indoor test sample is arranged too much, so that the room can not be full of wind Cycle, in the removal of the reasons for the above reasons, we must consider whether the refrigeration system in the hindrance, and so we should ask the factory professional staff to carry out the test. The latter is the result of the use of equipment to deploy the deployment of the situation is not good, set the equipment deployment arrangements for the temperature, the location of the arrangement (after the box and the wall interval) to be satisfied with the requirements (in the deployment of equipment deployment Delineation).

3, small high and low temperature hot and humid test chamber common in the hot and humid test, the actual humidity will reach 100% of the actual humidity and the actual humidity difference is very large, the value is much lower, the former signs: probably wet bulb sensor gauze dry Caused, it is necessary to check the wet bulb sensor sink is water, the water level in the tank is controlled by a water level controller, check the water level controller water supply system is normal water supply, water level controller is normal. The other is probably the wet bulb gauze due to the use of a long time, or water quality purity of the reason, will make the gauze hard, so that gauze can not absorb water and dry, as long as the exchange or washing gauze can remove the above signs. The signs of the latter is important to the humidification system does not matter, check the humidification system of the water supply system, the water supply system whether there is a certain amount of water to control the humidification of the water level of the boiler water level control is normal, humidification boiler water level is normal. Such as all the above are normal, it is necessary to check the electrical control system, which requires professional maintenance staff to carry out the test.

4, small high and low temperature hot and humid test box common configuration equipment deployment in the course of the trial operation suddenly hindered, the control instrument appears on the corresponding hinder performance tips and voice alarm tips. The operator can compare the configuration of the deployment of the deployment of the use of obstacles in the removal of a chapter in the quick check out what kind of obstruction, you can ask the professional staff to quickly remove the obstacles to ensure the normal operation of the trial.

Other conditions set the deployment of equipment in the use of there will be other signs, it should be marked, detailed analysis and removal. The situation set the equipment to install the equipment should also be held regularly maintenance nursed back to health, refrigeration system, regular liquidation of the liquid, to deal with moving parts should be lubricated according to the instructions, small high and low temperature hot and humid test chamber common electrical control system regular maintenance check, etc., these things are Not less.