Analysis on the problem of the high temperature and humidity environment

Posted On：2016-08-04

Troubleshooting: after the temperature and humidity test machine manufacturers professionals analysis, the temperature and humidity testing machine is low temperature test box with constant temperature and humidity, the temperature level of is through the import instrumentation control tube heating and refrigeration compressor in order to achieve the purpose of temperature control. Temperature and humidity environmental testing machine high temperature instability, from the principle of analysis, Beijing Poussin manufacturers professionals do a bit analysis:
1, the temperature and humidity testing machine in high temperature test, such as temperature change is not up to the test temperature value, you can check the electrical system, one by one to troubleshoot. Such as temperature rises very slowly, it is necessary to look at the wind circulation system, see the wind cycle regulating baffle plate is normally open, on the contrary, check the circulation wind motor is functioning properly. If the temperature is too much, then you need to set the setting parameters of the PID. If the temperature rises directly, over temperature protection, then the controller fails, the control instrument must be replaced.
2, heating temperature and humidity test machine is not controlled, the instrument display or control whether normal repair or replacement; the instrument set is correct or whether it is manual output to setup the execution component contactor, relay contacts whether adhesion or burn out or controllable silicon, a solid state relay is breakdown replaced; executive element, a heating pipe, a heating wire whether to repair or replace the controller and regulator, electric contact thermometer control is good or if it is burnt to repair or replace damaged.