Overview
HUDA QT-E702-1000B70 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.; or under high temperature, low temperature, heat and humidity alternating environment, inspection materials, accessories or instruments are resistant to high temperature, cold, moisture and heat performance and possible damage life reduction.
Features
1. Box structure: the inner box adopts SUS304 #stainless steel plate, the outer box adopts SUS304 #stainless steel plate, equipped with explosion-proof door handle, ultra-fine fiberglass insulation, double-decked vacuum-strengthened Glass observation window, fixed PU movable wheel, stainless steel punching sample holder and test hole.
2. Refrigeration system: using French Taikang Compressor and American DuPont environmental protection refrigerant (R404a), binary low temperature circuit system design, P.I.D + S.S.R temperature and humidity coordinated control, resolution up to 0.1 ℃.
3, heating and humidification system: heating using nickel-chromium alloy high-speed heating wire, humidity using stainless steel tube built-in nickel-chromium alloy high-speed heating wire and high temperature oxidation mg powder, heating and humidification system is completely independent, equipped with automatic water replenishment device.
4. Control system: Precision liquid crystal display programmable temperature controller, smart digital display PID microcomputer temperature control instrument, touch setting, support multi-group multi-segment programming, with USB data transfer interface and 232 communication interface.
5. Protection system: with overall equipment overtemperature, fan overheating protection, underphase/inverse phase, refrigeration system overload, refrigeration unit overpressure, timing, leakage, automatic shutdown after fault alarm and other protection functions.
Principle
The equipment simulates the required temperature and humidity environment through the coordinated work of the refrigeration system, the heating system and the humidification system. The refrigeration system uses a binary cryogenic circuit and Compressor to cool down; the heating system quickly heats up through an electric heating wire; the humidification system heats water through an electric heating wire to generate steam for humidification. The control system uses the P.I.D + S.S.R algorithm for co-channel coordinated control, corrects the temperature and humidity changes in real time, and ensures the uniform and stable 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 activity wheel and fix the casters.
Connect the 380V power supply to ensure that the rated current is 32A.
3. Provide water to the equipment through the front-mounted water supply tank to ensure that the fully automatic water supply system is functioning properly.
4. Set the test program (program mode) or set the constant temperature and humidity value (fixed value mode) through the Chinese/English touch interface.
5. Place the sample to be tested evenly on a stainless steel sample rack with adjustable spacing (load-bearing ≥ 20kg).
6. Close the box door and start the equipment for testing.
7. During the test, it can be observed through the double-decked vacuum glass observation window, or connected to the computer monitoring and storage data through the USB interface and 232 communication interface. Linear dispersion.
8. After the test is completed, the equipment is stopped or manually stopped according to the set program to remove the sample.
Notice
The equipment needs to use a 380V power supply with a rated current of 32A. Please ensure that the power supply meets the requirements.
Samples should be evenly distributed on the sample rack, with a total load-bearing capacity of no more than 20 kilograms.
* When using the test hole, please ensure that the thermal insulation accessories and special sealing plugs are installed in place to prevent air leakage.
When the equipment is running, do not open and close the box door frequently to avoid affecting the temperature and humidity stability and test results.
Regularly check the water supply system to ensure sufficient water supply and avoid dry burning of the humidifier.
The equipment has a variety of safety protection functions. When a fault alarm occurs, it will automatically shut down. Please troubleshoot it before restarting.
When moving the device, you need to release the fixing device first, and immediately fix the casters after moving them in place.
* After the low temperature or humidity cabinet test, there may be condensation in the box, please perform proper cleaning and drying treatment after the test.
