High quality high and low temperature impact test chamber

High quality high and low temperature impact test chamber

System Introduction

This series of environmental experiment boxes can provide a simulated environment for users to inspect and test electronic and electrical components, spare parts, or experimental departments in related industries, providing conditions for the accuracy and repeatability of test data. This product has simple operational performance and reliable equipment performance, a convenient measuring device, a temperature controller, and an advanced Chinese LCD display touch screen. It can perform various complex program settings, and the program settings are set in a dialogue mode, making the operation simple and fast. It can achieve automatic operation of the refrigeration machine, maximize automation, reduce the working time of operators, and can automatically start, stop, and operate at any time. The work of each system (fan, refrigeration dehumidification, heating) is centrally controlled by the touch screen human-machine interface. The overall assembly is carried out at the customer's end, with convenient transportation and placement, and on-site debugging and acceptance are carried out at the customer's end to ensure the performance of use at the customer's end; High degree of structural integration, short assembly and debugging time on the client side; Scientific air circulation design ensures uniform indoor temperature and avoids any dead corners; A complete safety protection device avoids any potential safety hazards and ensures the long-term reliability of the equipment; Each product is customized according to customer requirements, ensuring the efficiency and energy saving of the equipment.

High quality high and low temperature impact test chamber

reference standard

This test chamber complies with GB/T2423.1 Low temperature test method and GB/T2423.2 High temperature test method. GJB150.5-86 Temperature Shock Test Method, GJB360A-96 Electronic and Electrical Component Test Method.
GJB 150.3 High temperature test; GJB 150.4 Low temperature test;
GB10588-2006 Technical Conditions for High Temperature Test Chamber;
GB10589-2006 Technical Conditions for Low Temperature Test Chamber;
GB/T10592 Technical conditions for high and low temperature test chambers;
Tests required in QC/T413-2002, GB2423.22, ISO16750-4, IEC60068-2-14 standards

control system

1. Setting method: Touch, click

2. Display mode: Color LCD backlit touch screen with Chinese display

3. Setting and display resolution: temperature (0.1 ℃); Time (1 minute)

4. Graphic display: Fully display the set program curve.

5. Set parameter storage time: After fully charged, data can be saved for 5 years.

6. Number of programs: 1-499 (the largest being 499 programs).

7. Program segments: 1 to 64 segments per program; Can run by group connection.

8. It can automatically prompt users to correctly set temperature and time parameters.

9. Some maintenance interfaces are used to debug and maintain equipment with program running maintenance functions.

10. Temperature correction: It has the function of self correcting temperature reference points.

11. It has the function of waiting for program execution.

12. It has program skip function.

13. It has a program stop function.

14. It has a power-off recovery function.

15. Control modes: constant temperature, slope, program.

16. It has the function of locking the running interface. Recording function: It can record curves and experimental data within 100 days, and can query the temperature and humidity situation at every moment within 100 days in detail. It can be exported using USB 2.0, printed on a PC, and generate data reports (equivalent to the function of a paperless recorder). It has a self checking function for startup faults.

17. Computer monitoring system: The control system can achieve data transmission and monitoring functions through computer Ethernet or wireless network communication interfaces. Note: Free software upgrades will be provided in the future

refrigeration system

1. System concept: This type of laboratory adopts the industry's temperature balance technology (cooling without heating), which uses energy regulation technology to balance temperature control without the need for additional heating during cooling and low-temperature balance. Energy regulation technology, also known as PID control, regulates refrigerant flow by adjusting the mass of refrigerant entering the evaporator per unit time to achieve precise control of refrigeration power and temperature in the laboratory.

Compared to the previous "balanced temperature control method" of heating and cooling at the same time, the energy consumption is very high. The use of this technology can significantly reduce customers' operating costs and extend the lifespan of compressors to the greatest extent possible. It can save users a considerable amount of electricity expenses during the product lifecycle (depending on the actual frequency of use by customers)

3. Refrigeration hardware: The refrigeration cycle system is composed of "Taikang" fully enclosed compressors.

4. Refrigerant: Environmentally friendly refrigerants R404a and R23 are used.

5. Refrigeration evaporator: A corrugated fin refrigeration evaporator is used, located in the air duct interlayer at one end of the test chamber, and is forced to ventilate by a blower motor for rapid heat exchange.

6. Auxiliary components: Other auxiliary components in the refrigeration system of this test chamber, such as solenoid valves, filters, etc., are also imported by our company; If using Italian CAS solenoid valves, bypass valves, globe valves, etc., other accessories are also selected from domestic brands of refrigeration accessories.

7. Low temperature pipeline: High quality oxygen free copper pipes and nitrogen filled welding are used for low-temperature pipelines (traditional methods use ordinary copper pipes, and direct welding methods can easily cause oxides to form on the inner wall of the copper pipes, causing blockages in the refrigeration system and preventing or slowing down the cooling of the test chamber)

8. There is a condensate drain tray at the bottom of the refrigeration system and it is discharged outside the box.

9. Vibration reduction: Adopt compressor rubber pads or spring vibration reduction measures; The refrigeration system pipeline adopts the method of adding R and elbows to avoid the deformation of copper pipes caused by vibration and temperature changes, which may cause the refrigeration system pipeline to rupture.

10. Noise reduction: Special wave shaped sound-absorbing sponge is used for sound absorption.

High and low temperature impact test chamber | Air duct system of high and low temperature impact test chamber

To ensure a high uniformity index, the test chamber is equipped with an internal circulating air supply system and air ducts. Inside the air duct interlayer at one end of the studio, there are devices such as heaters, refrigeration evaporators, de evaporators, and fans distributed. Multiple fans are used to circulate the air inside the box. When the fans are running, the air in the working chamber is sucked into the air duct from the bottom, heated/cooled, and uniformly blown out. The air exchanged with the test sample in the working chamber is then sucked into the air duct and repeatedly circulated to meet the temperature setting requirements.