Overview
HUDA QT-E702-225K70 programmable humidity chamber is mainly used to simulate the 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. The equipment is used for inspection of materials, accessories or instruments under high temperature, low temperature, heat and humidity alternating environment weathering 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 layer, silicone rubber sealing strip, fixed PU movable wheel, stainless steel punching sample holder, double-decked vacuum heating defrosting observation window and test hole.
2. Refrigeration system: using French Taikang Compressor and American DuPont environmental protection refrigerant, binary low temperature circuit design, P.I.D + S.S.R temperature and humidity coordinated control, precise and stable 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: Adopts a precision liquid crystal display programmable temperature controller, supports multiple sets of multi-stage programming, and has data storage and transfer functions (such as USB interface). The main electrical components are made of Chint and other brands.
5. Protection system: with multiple protections such as overtemperature, fan overheating, underphase/reverse phase, overload, overvoltage, timing, leakage, etc., automatic shutdown after fault alarm.
Principle
The equipment works together through the refrigeration system, heating system and humidification system to simulate the required temperature and humidity environment. The refrigeration system uses a binary cryogenic circuit and Compressor for cooling; the heating system raises the temperature through an electric heating wire; the humidification system heats water through an electric heating wire to generate steam to increase humidity. The control system uses the P.I.D + S.S.R algorithm for precise temperature and humidity regulation and stability, and ensures uniform temperature and humidity in the box through forced air circulation.
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.
2. Connect the 380V power supply to ensure that the rated current and power meet the requirements.
3. Supply water to the humidification system through the front water tank or automatic water supply system.
4. Use the touchscreen to set the test parameters (temperature, humidity, time, etc.), and choose the fixed value or program operation mode.
5. Place the sample on a stainless steel sample holder with adjustable spacing to ensure uniform load-bearing distribution (≥ 20kg).
6. Close the box door and start the equipment for testing.
7. During the test, the data can be observed through the observation window, or recorded and exported through the USB/SD card interface. Linear dispersion.
8. After the test is completed, the equipment is stopped according to the setting and the sample is taken out.
Notice
• The equipment should be installed in a well-ventilated place without direct light and away from heat sources.
• Power supply voltage is 380V, and check the wiring is correct to prevent underphase/reverse phase.
• Sample placement should not block the air duct, and the total weight should be evenly distributed, and the single point load-bearing does not exceed the design standard.
• Regularly check and clean the humidified water tank to ensure that the automatic replenishment function is normal.
• During the operation of the equipment, do not open the box door frequently to avoid affecting the stability of temperature and humidity and the life of the equipment.
• If there is an alarm such as overtemperature or overload, the equipment will automatically shut down and can only be restarted after troubleshooting.
• After low temperature or humidity cabinet test, there may be condensate in the box, please pay attention to treatment.
• Non-professional personnel should not disassemble or repair equipment, especially refrigeration systems and electrical components.
