Overview
JIANGKAI NBC-HW-100 (-20 ℃) Constant Temperature and Humidity Chamber is a test equipment used to simulate constant heat and humidity, high temperature, low temperature and alternating heat and humidity environment. It is mainly used for environmental adaptability testing of parts and materials of electronic, electrical, household appliances, automobiles and other products, and inspection of their performance indicators.
Features
1. Adopt fully dense Compressor imported from France, environmentally friendly refrigerant R404A, equipped with fin condenser and evaporator to form an efficient and stable refrigeration system.
2. The control system adopts the original 7-inch Chinese LCD touch screen imported from Korea, which has a friendly interface, supports programmable control of temperature and humidity, and has Linear dispersion display function.
3. The controller has high accuracy, temperature +/- 0.1 ℃, humidity +/- 1% RH, with 6 sets of PID control parameter setting and automatic calculation function.
4. Program capacity, can store up to 100 groups of programs, a total of 5000 program segments, each command can be repeability up to 9999 times.
5. With power-off program memory and automatic connection execution function after power-up, as well as real-time graphics Linear dispersion display, screen locking and other control functions.
6. The inner box is made of stainless steel plate (SUS #304), and the insulation layer is rigid polyurethane foam and Glass cotton, which has a strong structure and good thermal insulation performance.
Principle
The device precisely controls the temperature and humidity of the air in a closed test chamber through a refrigeration system (Compressor, condenser, evaporator, etc.) and a heating and humidification system (heating rod, humidification tube, etc.). The control system (Korea TEMI880 temperature and humidity control instrument) receives signals from the temperature sensor (Pt100) and the humidity Sensor, and controls the actions of the cooling, heating, humidification and other executive components through PID calculations to create and maintain a set high temperature, low temperature or constant/alternating heat and humidity environment in the box to test the performance of the sample under the corresponding conditions.
Applications
Constant heat and humidity, high temperature, low temperature and alternating humidity cabinet test for electronic, electrical, household appliances, automobiles and other product parts and materials
Standards
GB5170.2, 3, 5, 6-95 "basic parameters of electrical and electronic products environmental test equipment method of verification low temperature, high temperature, constant heat and humidity, alternating humidity cabinet test equipment", GB 2423.1-89 (IEC68-2-1), GB 2423.2-89 (IEC68-2-2), GB/T 2423.3-93 (IEC68-2-3), GB/T 2423.4-93 (IEC68-2-30)
Steps
1. Enter the program editing screen through the touch screen, directly enter the required temperature, humidity and time parameters, or call an existing program.
2. Confirm the program settings, and preview the program execution process through the graphical Linear dispersion.
3. Put the sample to be tested into the test chamber and close the box door.
4. Launch the set test program on the control panel.
5. The device starts to run, and the currently executed program number, segment number, remaining time, number of cycles, and the set value (SV) and actual value (PV) of temperature and humidity can be displayed in real time on the screen. Linear dispersion.
6. During the test, the running status can be monitored through the screen, and relevant information will be displayed if there is an alarm or failure.
7. After the test is completed, the equipment stops running according to the program and the sample is taken out.
Notice
Before running the equipment, make sure the power connection is correct and check whether the grounding is reliable.
• When placing the sample, do not block the air duct in the box to ensure uniform temperature and humidity.
• When the equipment is running, do not open and close the box door frequently, so as not to affect the stability of the environment in the box and the life of the equipment.
• Regularly check the status of consumables such as refrigerants and drying agents and replace them as needed.
• The equipment has functions such as over-temperature protection. If an alarm occurs, please check the fault according to the screen prompt information, and then continue to operate after elimination.
• After the high temperature or high humidity test, if you need to open the box door, please pay attention to the high temperature and high humidity gas gushing out to prevent burns or discomfort.
• When not in use for a long time, the power supply should be cut off and the drying inside the box should be kept clean.
