What to do with leakage during the use of High and Low Temperature Thermal Shock Chamber

In industrial production, when testing electronic components, it is necessary to use a High and Low Temperature Thermal Shock Chamber for testing. It is used for temperature cold and hot impact testing. The time of temperature conversion is short and the change is fast, so it can impact the temperature of product testing.

Detect chemical changes or physical damage caused by thermal expansion and contraction of the product for a short period of time under ultra-high and ultra-low temperature conditions to determine the quality of the product.

The composition of the High and Low Temperature Thermal Shock Chamber includes the equipment chamber, air circulation system, refrigeration system, and control system. In addition, it is divided into three zones: high temperature, low temperature, and impact testing.

The wind circulation system generally adopts an adjustable wind direction structure; The air conditioning refrigeration structure forms a temperature humidity treatment system; The heating system adopts electric heating; The control and display operation interface adopts methods such as temperature humidity separation and temperature humidity separation combined controller.

1. The low temperature did not meet the test criteria
It is necessary to observe the temperature change of the High and Low Temperature Thermal Shock Chamber, whether it drops slowly or if there is a phenomenon of a rebound after the temperature drops to a certain point. The studio needs to be dry before conducting the High and Low Temperature Thermal Shock Chamber, and the samples should not be placed too much.

2. The High and Low Temperature Thermal Shock Chamber suddenly malfunctioned during the test operation. The control instrument displays corresponding fault prompts and audible alarm prompts. Testers can quickly check for faults by referring to the troubleshooting section during equipment use, or ask professional personnel to quickly troubleshoot to ensure the normal operation of the test.

Other environmental testing instruments may encounter other phenomena during use, so it is necessary to analyze and eliminate them specifically.

3. During the high-temperature test, the temperature change cannot reach the test temperature value
The operator can investigate one by one whether it is a problem with the electrical system. If the temperature rises slowly, check whether the regulating baffle of the air circulation system opens normally. If not, check whether the air circulation motor operates normally.

If the temperature overshoot is too strong, it is necessary to adjust the PID setting parameters. If the high temperature causes high temperature protection, it is necessary to check whether the controller is damaged. If it is damaged, the control instrument needs to be replaced.

What should I do if there is leakage during the use of a High and Low Temperature Thermal Shock Chamber?
1. The lighting power supply is only for maintenance personnel to use and is for safe voltage.
2. Ventilation holes should not be placed in the high-pressure part of the High and Low Temperature Thermal Shock Chamber. If the customer insists on installing ventilation holes, the aperture should be small to avoid the risk of electric shock if fingers or measuring probes are accidentally inserted.

3. Special tools with good insulation performance should be used for operating tools near high voltage areas. For adjustment points of accessories in high voltage or high temperature areas and difficult to find adjustment points, a screwdriver (screwdriver) should be placed to guide the setting. The screwdriver handle should have good insulation performance and be placed in a place that is not easy to hinder work or cause danger.

4. When the main switch of the power supply in the High and Low Temperature Thermal Shock Chamber displays (off) status, all power sources entering the interior must be cut off except for the power input line. The power circuit needs to be equipped with fuses at the input and output terminals, and if necessary, with automatic fault alarm devices.

5. When designing equipment, it is necessary to consider setting the devices and live wires that are still live within the range that technicians and maintenance personnel cannot (accidentally) touch after the equipment is shut down.
6. Where operations need to be stopped, signal devices such as “Do Not Hands” signs, warning lights, and alarms should be installed.

The High and Low Temperature Thermal Shock Chamber has credibility and stability performance:
1. After the equipment weighing and inspection time is over, try to take and place the weighing sample in a closed state and ensure that the staff wear dry, safe electricity, and heat-resistant rubber gloves.

2. As for the insufficient cleaning of the equipment, the ground near the equipment and at the bottom web end should be kept clean at all times to prevent a large amount of dust from being sucked into the diesel generator, causing accidents and reducing the characteristics.

3. Refrigeration, as an important part of the test chamber, must undergo a safety inspection every six months to check for any leaks in all air conditioning copper pipes, as well as all functional tee joints and welded joints. If there are any oil stains or leaks, they must be dealt with immediately.

4. When the loading port of the High and Low Temperature Thermal Shock Chamber or taking the inspection weighing sample from the chamber, the weighing sample should not touch the door and window sealing strip to avoid damage to the window sealing strip or reduce its service life.

5. There is a problem with the internal maintenance of the equipment. During the operation process of the test chamber, the internal sediment needs to be removed first. In work, the room should be cleaned up and down at least once a year. When cleaning, a vacuum cleaner should be used to remove dust from the room.

6. The cooling tower in the refrigeration unit of the equipment must be maintained on time once a month to keep it clean and tidy. Use a wireless vacuum cleaner to remove the dust adhering to the steel wire mesh of the cooling pipe radiator, or use a hard brush or a high-pressure nozzle to blow clean the clean dust after starting. The additional dust in the cooling tower can cause the high voltage cabinet of the refrigeration unit to solve and cause false alarms.

High and Low Temperature Thermal Shock Chamber can be used in the temperature shock test and fast-changing temperature test in a wide range such as aviation, air space, electronic components and material research.

HLST-500D has two separate chambers: high temperature chamber and low temperature chamber.
HLST-500T has three separate chambers: high temperature chamber, low temperature chamber and test chamber.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

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Tags：HLST-500D