Overview
HUDA QT-E702-150K70 programmable humidity chamber is mainly used to simulate the harsh high temperature, low temperature or heat and humidity environment that may be encountered during transportation, storage and use of electronic Instruments, new materials, electricians, vehicles, metals, electronic products, aerospace materials, etc., inspection materials, accessories or equipment High temperature resistance, cold resistance, moisture and heat resistance performance and possible damage or life reduction.
Features
1. Box structure: The inner box adopts SUS304 stainless steel plate, the outer box is Cold rolled steel plate paint, equipped with explosion-proof door handle, ultra-fine fiberglass insulation, double-decked vacuum heating and defrosting observation window, fixed PU movable wheel and adjustable spacing stainless steel sample holder.
2. Refrigeration system: using French Taikang Compressor and American DuPont environmental protection refrigerant, binary low temperature circuit design, P.I.D + S.S.R coordinated control, precise and stable temperature and humidity control.
3. Heating and humidification system: heating using nickel-chromium alloy electric heating wire, humidification using stainless steel tube built-in electric heating wire, the system is independent and equipped with automatic water replenishment device.
4. Control system: Adopt precision LCD programmable temperature controller, support multi-group multi-segment programming, with USB data transfer interface, can be connected to computer display and print Linear dispersion.
5. Protection system: with multiple protections such as overheating of the overall equipment, overheating of the fan, underphase/inverse phase, overload of the refrigeration system, overpressure, timing, leakage, etc., and automatic shutdown after fault alarm.
Principle
The equipment works together through the freezing system, heating system and humidification system to simulate the required temperature and humidity environment in a closed box. The freezing system adopts a binary low temperature circuit and Compressor for cooling and dehumidification; the heating system raises the temperature through an electric heating wire; the humidification system increases the humidity by generating steam through electric heating. The control system adopts the P.I.D + S.S.R algorithm to calculate and correct the temperature and humidity changes in real time, and ensures the uniform temperature and humidity in the box through forced air circulation, so as to realize the test of the environment resistance performance of materials or products.
Applications
Electronic Instruments, New Materials, Electrical, Vehicles, Metals, Electronics, Aerospace Materials
Standards
GB2423.1-2008/IEC6008-2-1-2007、GB/T 2423.2-2008、GJB150.3A－2009、GJB150.4A－2009、GB2423.22-2008、GBT 2424.5-2006、GB/T 10589-2008、GB/T2423.3-2008(IEC68-2-3)
Steps
1. Move the device to the designated position through the bottom PU movable wheel and fix the casters.
Connect the power supply (220V) and check the electrical system.
3. Set the test program (program or value setting) through the touch screen, or select an existing program.
4. Place the sample on a stainless steel sample holder with adjustable spacing to ensure uniform load-bearing distribution (≥ 20kg).
5. Close the box door and ensure that the silicone rubber sealing strip is well sealed.
6. Start the equipment and run the test.
7. Monitor the test process through the observation window and controller, and connect the computer through the USB interface or communication interface for data recording and Linear dispersion printing.
8. After the test is completed, the equipment is stopped according to the setting and the sample is taken out.
Notice
• The load-bearing capacity of the sample should be evenly distributed, and the standard load-bearing capacity of each sample holder should be ≥ 20kg.
• Before the equipment runs, make sure that the door is well sealed and the observation window is not damaged.
• The refrigerant is environmentally friendly refrigerant R404a/R23, which needs to be operated by professionals during maintenance.
• The equipment has multiple safety protections, and it will automatically shut down when the fault is alarmed. It needs to be troubleshooted before restarting.
• When using the test hole, special thermal insulation accessories and sealing soft plugs are required to prevent air leakage.
• The humidification system has an automatic water replenishment device to ensure that the water supply is normal.
• After the device is moved and positioned, be sure to fix the casters.
• The main electrical components such as circuit breakers and AC contactors are Chint brands. It is recommended to use original or equivalent accessories during maintenance.
