Heating rate: 20 ℃~+150 ℃/45 minutes (under no load)

Heating load: 250W (40℃,90%RH)

Temperature stability: ± 0.2 ℃

Humidity stability: ± 2%

Large scale alternating humidity and heat test room programmable temperature and humidity test chamber

The thermal shock testing machine is used to test the degree to which material structures or composite materials can withstand continuous environments of extremely high and low temperatures in an instant, in order to test the chemical changes or physical damage caused by thermal expansion and contraction in a short period of time Applicable objects include metal, plastic, rubber, electronics Waiting for materials can serve as a basis or reference for product improvement

In order to simulate different electronic components and the temperature conditions encountered in actual use environments, changing the temperature difference range and rapid temperature changes can provide a more rigorous testing environment, shorten testing time, and reduce testing costs. However, it is necessary to pay attention to the potential additional impact on material testing and the occurrence of non use state destructive tests. The RAMP test conditions are indicated as: Temperature Cycling or Temperature Cycling Test, which refers to temperature cycling (temperature shock with controllable slope), while the failure mechanism remains unaffected.

1. GB/T2423.1-2001 Low temperature test methods;

2. GB/T2423.2-2001 High temperature test methods;

3. GB/T2423.22-1989 Temperature change test N;

4. National Army Standard GJB150.3-86;

5. National Army Standard GJB150.4-86;

6. National Army Standard GJB150.5-86;

7. GJB150.5-86 Temperature shock test;

8. GJB360.7-87 Temperature shock test;

9. GJB367.2-87405 Temperature shock test.

10. SJ/T10187-91Y73 series temperature change test box - one box type

11. SJ/T10186-91Y73 series temperature change test box - two box type

12. Meet the standard IEC68-2-14_test method N_temperature variation

10. GB/T2424.13-2002 Test Methods - Guidelines for Temperature Change Test

11. GB/T2423.22-2002 Temperature variation

12. QC/T17-92 General rules for weather resistance testing of automotive components,

13. EIA364-32 thermal shock (temperature cycling)

Temperature: 5 ℃~+28 ℃ (average temperature within 24 hours ≤ 28 ℃)

Relative humidity: ≤ 85%RH

Air pressure: 86kPa~106kPa

Power supply conditions: three-phase four wire+protective ground wire, voltage range: AC (380 ± 38) V

Allowable frequency fluctuation range: (50 ± 0.5) Hz

The grounding resistance of the protective grounding wire is less than 4 Ω

Require users to configure corresponding capacity air or power switches for the equipment at the installation site, and this switch must be independently used for the equipment

Water supply conditions: Purified water is required for equipment humidification

Control system for alternating humidity and heat test room:

The device has the following characteristics:

1. The controller adopts fuzzy algorithm and new technology control to adjust the freezing reasonably and achieve the best effect; 7 "TFT true color LCD touch screen,

Larger than ESPEC's 6.4 inch screen;

2. The controller interface is designed in the same style as the German Weisi Fuqi, making it easier to operate and more reliable to run;

3. The control refrigeration system adopts the cooling demand algorithm, which can reasonably and effectively utilize the cooling capacity, effectively reduce the consumption of cold and heat, and achieve stable control and energy-saving effects.

4. The temperature and humidity control adopts coupled PID control, which can effectively prevent the humidity value from fluctuating rapidly. It can not only achieve constant humidity and heat, but also achieve good alternating humidity and heat function;

5. The refrigeration system compressor adopts German Bitzer, which has lower operating noise and superior performance;

6. With one second sampling calculation, it can ensure real-time curve sampling and storage of historical data for 110 days. The sampling rate can be set arbitrarily from 3 seconds to one hour.

7.99999 hours of ultra long fixed value time

Program segment setting time of 8.540 hours and 59 minutes

9. Equipped with a USB interface, it can connect to a computer and the company's local area network.