Thermal Shock Chamber Manufacturer From China

  • Utilize cutting-edge technology and innovative features in our thermal shock test chambers

  • Offer a wide range of customization options to meet diverse testing requirements

  • Designed for fast and efficient testing cycles

  • Deliver exceptional performance and accuracy in thermal shock testing
  • Provide excellent customer support throughout the entire lifespan of our thermal shock test chambers
  • Thermal Shock Test Chamber

Linkotest Thermal Shock Chamber

Thermal Shock Test Chambers are specially designed to evaluate and assess the parameters and performance of various products, including electrical, electronic, automotive electrical, and materials, under extreme environmental conditions involving rapid temperature changes.

Our thermal shock test chambers stand out with their exceptional performance, compact design, and a multitude of standard features, offering great value for your investment. The lower chamber is equipped with heating and cooling capabilities and can function independently as a temperature cycling chamber, providing even greater return on investment.

Our Vertical Thermal Shock chambers consist of two separate hot and cold zones that are independently controlled. These zones facilitate the swift transfer of the product between extreme temperature environments, enabling rapid and precise temperature changes for thorough testing.

Trust Linkotest Thermal Shock Test Chambers to deliver exceptional performance and reliable results in assessing your products’ resistance to extreme temperature fluctuations.

Thermal Shock Test Chamber Tech Data

Model 3TSC30 3TSC80 3TSC150 3TSC225 3TSC415 3TSC800 3TSC1000
Volume(L) 30 80 150 225 415 800 1000
 Carrier Dimensions 35x40x36 40x50x40 50x50x40 60x50x50 70x60x60 80x80x75 100x100x100
(W x H x D)(mm)
Exterior Dimensions 147x172x159 152x182x169 172x182x179 172x182x179 182x192x190 192x212x210 212x232x235
(W x H x D)(mm)
Test area High temp.exposure range ＋60 to ＋100℃/125℃/150℃ )
Low temp.exposure range Type F：-10℃~-40℃ ; Type X：-10℃~-55℃ ; Type S ：-10℃~-65℃
Temperature fluctuation ±0.5℃
temperature shock range Type  F：-40℃~+150℃ ; Type X ：-55℃~+150℃; Type S：-65℃~+150℃
Temperature deviation ±2.0℃
Temp. recovery time ≤5min( option ≤3min)
Hot chamber Pre-heat upper limit ＋200℃
Temp. heat-up time Ambient temp. to ＋200℃  within 20 min
Cold chamber Pre-cool lower limit －75℃
Temp. pull-down time Ambient temp. to －75℃  within 70 min.
Main material  High quality stainless steel SUS304
Cooling system Cascade compressor
Insulation material Foamed polyurethane, glass wool
Condensation method Water-cooled or air-cooled
Standards GJB150.5, GB/T2423, IEC6008-2-14 (Test N)
Safety protection system Power supply undervoltage, overvoltage, phase loss, phase sequence error protection; triple overtemperature protection; heater short circuit protection; refrigerator overpressure/overload/oil shortage protection; humidifier fault protection; blower motor overload/overheat protection; control Board overcurrent protection; leakage protection; cooling water shortage protection; air source undervoltage protection.
Custom size chambers are also available

There are some advantages of a thermal shock test chamber.

1) List of advantages

  • Self-developed controller system, ARM-based embedded industrial control system software, and hardware design, on-board 8G Flash + 2G DDR3 memory, Freescale Le Cortex A9 I.MX6 (dual-core) processor, high-definition touch screen, user-friendly interface, reliable operation, and technical indicators that meet or exceed domestic standards
  • The chamber’s inner and outside materials are both constructed of 304 stainless steel plate, and its surface has been treated with plastic spray for beauty and durability. Its compact structure makes maintenance extremely simple.
  • 3. To meet a variety of work requirements, the use of high-quality temperature and humidity sensor detection control, with a variety of communication interfaces and extendable interface control
  • 4. The controller will automatically indicate the reason for the failure and recommend workarounds when abnormal conditions in the status display and curve display occur while the equipment is in operation.
  • 5. Using PID automated calculation control and high-precision temperature control, the controller is simple to use.
  • 6. The room temperature change rate is quick, and can be finished with no more than 3 °C / min temperature change rate of the chamber air temperature rise, cool down to room temperature, and meet the requirements of the national standard.
  • 7. The compressor unit uses an imported semi-hermetic compressor that is robust, quiet, and dependable for long-term use.
  • 8. Excellent performance, simple installation, and good conduction effect thanks to the adoption of a cutting-edge water-cooled condenser.
  • 9. Advanced scientific air circulation design, preventing any dead angles and ensuring a constant temperature inside the chamber.
  • 10. Install a full range of multiple protection devices. This prevents any security risks and ensures the long-term reliability of the equipment.

2) Unique advantages of Linkotest

The thermal shock test chamber is designed for high and low-temperature tests. It has to meet certain industry limits, which also means that it has unique advantages.

  • Meets the military standard 202G method 107G condition F, and weighs 15 pounds.
  • The limit switch stops the transfer process and allows precise product positioning
  • Alarm and shutdown circuitry provides over-temperature/under-temperature protection to ensure product safety and accurate test results
  • Efficient refrigeration systems provide thermal performance to meet military specifications for temperature-settling times
  • Value Pricing – Mechanical cooling vs Liquid nitrogen cooling

Several key industries and applications include:

1) Electric vehicle batteries

As the demand for vehicle electrification continues to grow. OEMs, suppliers, and manufacturers must keep up with the changing technology and regulatory environment. While a variety of methods and specifications exist, some key EV battery test applications include thermal cycling and thermal shock, reliability and robustness against vibration, overcharge and discharge protection, and overtemperature protection.

The hot chamber is particularly suitable for simulating cold start conditions where a variety of extreme temperatures need to be verified. In general, several common standards for automotive battery certification include UL 1642(lithium battery), IEC 62660, ISO 12405, SAE J1772, and IEEE 1725.

2) Aerospace and Defense

According to the survey, various space and defense programs rely on ground testing to ensure the correct and successful operation of components, systems, payloads, sensors, and more. The hot chamber allows the components to undergo thermal cycling to simulate the harsh environment at high altitudes.

However, thermal vacuum chambers allow space components and subsystems to withstand extreme temperatures and deep vacuums. The commercial, military, and aerospace industries require industry standards for precise thermal resistance definitions, including MIL-STD-1540, MIL-STD-750, EIA-364-32, and others.

3) Electronics

Thermal testing and cycling of electronic components typically detect defects by exposing parts to temperatures higher than normal operating temperatures. This includes solder joint and seal failures, as well as lead and mark damage. Thermal stress on electronics and components can also help identify changes in the physical properties of components that can reduce the reliability and longevity of these products.

In other cases, thermal testing is used for component validation where the temperature range exceeds the normal operating range and is used to determine the maximum and minimum operating temperatures for these components. A wide variety of industry standards exist, although the widely accepted 11 standards include JDEC 51, which is specifically designed for the thermal measurement of component packages under a variety of environmental conditions.

4) Other Industries

It has a wide range of industries and services, and the products developed must meet national and international standards and be used in the form of thermal testing. Some industries and standardization organizations include construction and building materials (ASTM, ANSI, ISO), chemicals, energy commodities, consumer goods, and healthcare, including pharmaceuticals and medical devices.

  • GB2423.1-2001 Test A low-temperature test method
  • GB2423.2-2001 Test B high-temperature test method
  • Test method for test N temperature change according to GB2423.22-2001
  • GJB150.3-86 High-temperature test
  • GJB150.4-86 Low-temperature test method
  • GJB150.5-86 Temperature shock test
  • Product performance standards
  • The low-temperature test chamber in accordance with GB10589-89
  • High-temperature test chamber technical conditions, GB11158-89
  • GB10592-89 High and low-temperature test chamber technology

High Quality Thermal Shock Test Chamber Solution

The equipment is mainly suitable for schools, factories, military, research, electrical appliances and other enterprise units

Environmental Test Chamber Supplier

Thermal Shock Chamber Solution

Linkotest provides a full set of thermal shock chamber solutions for our clients in different industries.

  • Equipped with state-of-the-art control systems

  • The heating and cooling systems in our chambers are optimized for efficiency

  • Equipped with user-friendly interfaces, intuitive controls, and data-logging capabilities
  • Tailor the chambers according to your specific needs.

Call Us

+86 18128547317

Our Email

info@linkotest.com

Linkotest Thermal Shock Chamber After-Sales Service

Warranty

We offer a comprehensive warranty on all our products. This warranty ensures that any manufacturing defects or malfunctions will be promptly addressed and resolved free of charge within the specified warranty period.

Technical Support

Our dedicated technical team is available to assist customers with any product-related issues. Whether it’s troubleshooting, installations, or general inquiries, our team is ready to provide prompt and efficient solutions.

Repair and Replacement

In the event that a product requires repair, we offer convenient repair services through authorized service centers. Our skilled technicians will diagnose and fix any issues, ensuring that the product performs optimally.

Spare Parts Availability

We maintain an inventory of commonly required spare parts to facilitate quick repairs. This helps minimize downtime, ensuring that our customers can continue using our products without significant interruptions.

Customer Feedback and Complaint Handling

We value our customers’ feedback and take complaints seriously. Our customer service team is committed to resolving any customer concerns promptly, ensuring their satisfaction with our products and services.

Product Upgrades and Enhancements

We continuously strive to improve the quality and features of our products. When applicable, we offer product upgrades or enhancements to provide our customers with the latest technology and improved functionality.

Training and Manuals

We provide comprehensive product training to our customers, ensuring that they fully understand the features and operation of our products. Additionally, we offer detailed instruction manuals and documentation to assist customers in using our products effectively.

Extended Support Contracts

For customers who require additional support beyond the standard warranty period, we offer extended support contracts. These contracts provide continued access to technical support, repairs, and other services, offering peace of mind and additional value.

Steps To Order Thermal Shock Chamber

Selection

Choose the types of thermal shock chamber based on the necessary function, and then the right model based on the test specifications.

Quotation

Prepare a comprehensive quotation based on the customer’s requirements, including the cost, delivery details, and any additional services or customization requested.

Contract Execution

Engage in negotiation with the customer to finalize the terms of the order, including pricing, payment terms, and delivery schedule. Once all details are agreed upon, obtain the customer’s confirmation to proceed with the order.

Producing Schedule

Ensure that the thermal shock chamber is manufactured to the highest quality standards. Conduct rigorous quality control checks and inspections at every stage of the production process to guarantee the system’s reliability and accuracy.

Shipping

Coordinate with the customer to arrange the shipment. Provide regular updates on the shipping status, including tracking information, to keep the customer informed about the progress of their order.

Installation

Offer installation services and provide on-site training to the customer’s staff upon delivery. Ensure that the customer understands how to operate and maintain the system properly.

Thermal Shock Chamber Supplier FAQ

Yes, we offer customization options for chamber size, temperature range, and other specifications to tailor the chambers according to your specific needs.

The lead time depends on the specific chamber model and customization requirements. Typically, it ranges from a few weeks to a couple of months. We can provide you with a more accurate estimate based on your specific needs.

Our chambers are equipped with advanced control systems that ensure precise and consistent temperature transitions. We regularly calibrate and test our chambers to maintain accuracy and reliability.

Yes, we offer installation services and can also provide training to your team on how to properly operate and maintain the chambers. Our goal is to ensure that you can utilize the chambers effectively and get accurate test results.

We provide a standard warranty for our chambers, typically ranging from one to three years. The warranty covers any manufacturing defects or malfunctions that may occur during normal usage.

Absolutely, we offer comprehensive support and service throughout the lifespan of our chambers. Our experienced team can assist you with routine maintenance, calibration, troubleshooting, and any technical support you may require.

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Custom Thermal Shock Chamber – An Ultimate FAQ Guide

If you want to customize a thermal shock chamber for your lab, you are recommended to read our following guide. It covers thermal shock chamber definitions, features, types, maintenance, etc, you’ll find everything here.

A thermal shock chamber is a device that alternately applies extremely hot and cold air to a product to test its durability and determine breaking points.

First, thermal shock test chambers are essential for testing tools in the metal, plastic, rubber, electronics, and other material industries. They are used to expose composite materials or material structures to extremely high and low temperatures in the shortest possible time, allowing them to be tested in real-time. Therefore, this allows them to be tested in the shortest possible time. Because changes in chemical composition or physical damage can cause thermal expansion and contraction.

In addition, the electrochemical change caused by the cracking or fracture of the finished product is one of the effects of the thermal shock test. For example, some metallic materials, such as the body-centered cubic lattice of low-strength steel, decrease with the use temperature. Due to the rapid reduction of plasticity and toughness, material embrittlement occurs.

Environmental conditions are a key factor affecting device quality and reliability. For equipment used in environments where the ambient air temperature changes rapidly, the impact of the temperature shock environment must be considered.

This environment brings a variety of typical environmental effects to equipment, such as deformation or fracture of parts, failure of insulation protection, pinching or loosening of moving parts, changes in electrical and electronic components, and electrical or mechanical failure caused by rapid condensation or frost. Whether the equipment can work normally in the temperature shock environment directly reflects the adaptability of the equipment to this environment.

According to Method 503.4, (Thermal shock test) of U.S. military standard ML-STD-810 F, equipment that may be deployed in environments with rapid changes in air temperature requires a thermal shock test. The environmental test chamber must have the ability to re-stabilize the test conditions within 5 minutes after changing the test piece. The test transition time is 1 minute, and the air used around the test piece shall not exceed 1.7m/s.

During the final manufacturing process, components and sub-components are developed and designed taking into account the operating environmental conditions. Without this critical step in the manufacturing process, some parts are more likely to fail prematurely.

For example, exposing lithium-ion batteries to extreme cold reduces their life and storage capacity. By testing components, you can ensure their quality and reliability. Most importantly, ensure their overall performance in the intended working environment.

In addition, it is also suitable for electronic and electrical components, automation technology components, communication components, automotive supplies, metal materials, chemical materials, plastics, and other thermal shock test chambers.

Physical conversion of BGA, PCB substrate triggers, semiconductor materials, electronic chips, ceramic magnetic and functional materials to test the sustained tensile strength of their raw materials against high and ultra-low temperatures, as well as the chemical reactions or physical damage of cold and thermal shrinkage, can be made from heavy machinery components that require their ideal testing tools for highly accurate mass determination.

You can use the thermal shock test chamber as a tool to perform thermal shock tests at different stages of product development and with different objectives.

  1. Can be used to identify flaws in the product design and manufacturing process during the engineering development stage.
  2. Used as a foundation for decisions on batch production stage acceptability and product finalization or design appraisal.
  3. To prevent early product failures, a screening technique for environmental stressors is used.

The equipment composition and structure of the temperature shock test chamber include the following three points:

1) Equipment Composition

The temperature shock test equipment is composed of a low-temperature test chamber, a high-temperature test chamber, a refrigeration system, a heating system, a control system, a conversion device, and other equipment. The low-temperature test chamber provides a low-temperature platform for the temperature shock test, and can also conduct low-temperature tests independently.

The high-temperature chamber provides a high-temperature platform for the temperature shock test, and can also conduct high-temperature tests; the refrigeration system provides a low-temperature environment for the low-temperature chamber. The heating system provides a high-temperature environment for the high-temperature chamber; The control system completes the control and measurement of the equipment and test process; the conversion device converts the specimen during testing.

2) Equipment structure

To meet the requirements of the temperature shock test, it is necessary to carefully design the structure of the test chamber and the way of airflow. The structure of the low-temperature test chamber should meet the requirements of rapid cooling of the equipment from normal temperature to the required low temperature and the process of temperature shock, and ensure the uniformity of airflow and temperature in the chamber; the structure of the high-temperature test chamber should meet the requirements of the equipment from normal temperature to the required high temperature.

The convenience and the requirement of rapid temperature rise during the temperature shock process, and ensure the uniformity of airflow and temperature in the box. The air distribution method is an important link in the equipment design.

Commonly used air supply methods include upper-side air supply and lower-side return air and full orifice top air supply and lower-side return air. Because the whole orifice air supply method has the advantages of fast air mixing, good mixing, uniform, and parallel airflow diffusion, rapid temperature difference and wind speed attenuation, etc., it makes the temperature and wind speed distribution in the working area more uniform.

Therefore, the air circulation in the low-temperature room and the high-temperature room is uniform Adopt the return air mode under the full hole plate air supply. The air circulation process is: the airflow in the cavity sucked by the fan is mixed with the cold air generated by the refrigeration system or the hot air generated by the heating system. Install full-size orifice plates at a certain height from the top wall. The full-size orifice forms a stable pressure layer with the top wall. At the front end of the chamber is a gate, and at the back end is a circulating air duct and circulating fan.

3) Converter

To realize the fast conversion function, the conversion device adopts the rail-type conversion method, which is composed of a rail car and a test-piece car. The specimen trolley is used as the support of the specimen, and is transferred and tested together with the model between the two test chambers; the transfer rail car is used to quickly transfer the specimen and the specimen trolley from one chamber to another. The lower wheel rolls on the ground track, while the upper track facilitates docking with the two-chamber track and movement of the test piece.

Even for thermal shock chambers, there are different types. This can meet your different requirements. Here, we’d like to introduce you to the three most common types.

1) Vertically Thermal Shock Chamber

A vertically oriented thermal shock chamber with two independently controlled hot and cold zones. One on top of the other. In addition, individual product carriers move between each region, causing the temperature of the product to change dramatically.

One advantage of the vertical orientation room is that it takes up less floor space, making it suitable for small laboratories.

1) Horizontally Thermal Shock Chamber

The horizontally oriented thermal shock chamber has three adjacent independent areas. Including hot zone, environmental zone, and cold zone. The added environmental area allows for three-zone testing, which is required by some military standards. In fact, this unique and versatile cavity configuration can also be used for two-zone testing.

This is achieved by programming the product carrier as it automatically transfers the product from hot to cold and back again. Thus removing the surrounding area of inhabitants.

3) Dual-task Thermal Shock Chamber

the cold zone of the dual-task thermal shock chamber is located between the two hot zones and is vertically arranged up and down. The product you are testing is placed in one of two product carriers and transferred between areas that generate severe thermal stress.

In this case, at least one product carrier often occupies the cold area. This design makes efficient use of the chamber cooling system and provides a higher product test throughput than standard thermal shock designs. We install heaters in the cold zone for defrosting, allowing the area to operate as a temperature cycle chamber when not being used for thermal shock testing.

Compared with other shock testing machines, a thermal shock test machine has unique characteristics. These include:

  • Horizontal air circulation
  • Open air, fast reactive, low quality, nickel-chrome wire heating element
  • Two zone types with hot/cold compartment settings
  • Cascade refrigeration system, TEV control, and two semi-hermetically sealed compressors
  • Airtight, 100% continuously welded stainless steel for the inner tank
  • Fully automatic, PID-controlled, alphanumeric display
  • Vertical configuration
  • Ceramic insulator
  • Fiberglass and polyurethane insulation ensures minimal heat transfer
  • Double gasket doors provide additional insulation
  • Installed with a door switch and a temperature limit switch
  • The double-carrier transport system is made of stainless steel, wire mesh basket
  • Adjustable recirculating air louvers for optimal performance
  • Conveyor capacity 200 pounds
  • Temperature protection system for each zone (hot and cold).

While the industry and use of a hot cell are almost unlimited, it is important to define several key parameters when sourcing a hot cell for your testing needs.

1) Performance

In order to ensure the correct hot chamber, it is crucial to define the key performance parameters. Includes the desired temperature range, temperature, and desired rate of change for the product, as well as a complete test overview.

Does your test include humidity and temperature? If so, how will this affect your product and test specifications? How often do you check? Knowing the duration and frequency of the thermal test will help to better determine the parameters of the desired hot chamber.

2) Size

Usually, knowing the dimensions, material composition, fixture requirements, and total mass to be tested will help determine the size of the hot chamber to meet your requirements. In fact, benchtop and REACH-IN hot chambers are designed to maximize laboratory space and efficiency.

You use the standard performance of a large room but with a small footprint. Larger test equipment (DUT) may need to be loaded via a trolley, pallet jack, or forklift, which usually requires a walk-in room to meet your specifications. Understanding the footprint, utilities, and infrastructure of a lab or facility is critical to ensuring that the right system is selected and installed.

3) Timeline

Once you’ve defined your performance and scale requirements, you’ll want to understand the timeline and budget considerations that could affect your test plan. Most of the accessible and smaller hot rooms are available from different manufacturers in shorter lead times, sometimes even in stock and ready for shipping.

As a result, these cabins are more economical than comparable walk-in and drive-thru-es. Lead times vary across the industry, but a common principle is to give yourself a year to plan, search, buy, receive, install, and verify a walk-in or driver-free hot room.

You need to choose your thermal shock chamber according to the following factors:

1) Zone Option

The thermal shock chamber is available in two and three-zone configurations. Two-zone chambers use the movement of the basket to test how the product is affected by temperature, while three-zone chambers use the “temperature storage region” to introduce a temperature shock into the test area.

2) Choice of temperature

The thermal shock test chamber’s typical temperature range is -70°C to 150°C; temperatures below -70°C or over 150°C require customization.

3) Option of test space

The basic test space capacities are 50L, 80L, 105L, 150L, 225L, etc., but they can also be modified depending on the size of the product.

4) Cooling options

There are two cooling options: air cooling and water cooling. While water cooling has no test-environment requirements, it is more difficult to carry and takes up more room than air cooling. Air cooling saves space, but the test environment must include air conditioning to help disperse heat from the equipment.

5) Temperature and humidity variations

The rate of change in the working space’s center characteristics over time in a stable cold and thermal shock test chamber. Equipment in a stable state, the work area at a specific time between the test points of the difference, and homogeneity of temperature and humidity

How to set up the thermal shock chamber? What test mode does the device use? What cooling method is used for the equipment? How to determine the cooling capacity and heating capacity of the equipment is the main problem to be solved before the construction of the equipment.

1. Determination of the test plan

The structure of temperature shock test equipment usually has three types: single-chamber type, vertical lifting type, and horizontal double-chamber type. Compared with the above three types, the single-chamber type has poor feasibility and less practical application due to its large cooling and heating capacity; The vertical lifting type is converted by internal lifting, avoiding the influence of the external environment. However, since the lifting device itself is a heat load and consumes cooling or heat, this method is generally suitable for small laboratories.

For large and medium-sized test chambers, this method is not applicable because the lifting device is too heavy; by converting the two chambers mutually, the horizontal double-chamber type reduces the load on the chamber, thereby reducing cooling and heating capacity. However, a horizontal translation device is required and can be affected by the external environment.

Therefore, the choice of test method should be analyzed according to the specific situation. For small equipment, the vertical hoisting method can save one chamber and save costs; for medium and large test equipment, as long as the scheme is reasonable and feasible. The control box connects and controls the positive assembly.

2. Determination of refrigeration and heating process

At present, the cooling method of the low-temperature box is usually steam compressor cooling or air cooling. Compared with vapor compressor refrigeration, air refrigeration has the following advantages:

  • High low-temperature refrigeration coefficient, easy access to low temperatures, wide temperature adjustment range; insensitivity to equipment leakage
  • The air leakage is small, which has little effect on the refrigeration performance, and the refrigeration performance is relatively stable
  • The refrigerant is air, which has no harm to the environment
  • Reliable operation, simple operation, convenient maintenance, and low operating cost

For large-scale temperature shock test equipment, it is required that the temperature change speed is fast, and air cooling is a better choice. The positive pressure supercharging refrigeration method uses a turbo expander for secondary compression. Increasing the expansion ratio of the turbine increases the temperature drop of the turbine and improves the cooling capacity.

Since the positive boost refrigeration method has the advantages of a high refrigeration coefficient, good regulation performance, stable refrigeration performance, smooth start-stop, and regulation process, installed power, operating energy consumption, and less investment in equipment, the system adopts a positive boost refrigeration system.

The air refrigeration system is divided into two parts: air source and refrigeration. The air source part includes an air compressor unit, aftercooler, drying tower, water separator, etc.; the refrigeration part includes a turbine unit, sub-cooler, water cooler, filter, etc. The high-temperature box is heated by an electric heater; the electric heater is adjusted and controlled by a thyristor regulator to realize the step-less adjustment of the heating amount.

3. Conclusion

Through the air-cooling method and the track-type switching device, the index requirements of rapid recovery of temperature within 5 minutes and rapid switching of specimens between the two chambers within 1 minute are realized. The dual-chamber scheme is adopted to reduce the cooling and heating capacity of the equipment.

If you want your testing machine to extend its lifespan, you need to take efforts to maintain it and take good care of it. Here are several aspects and steps you can follow while taking care of your thermal shock test chamber.

1) Test chamber position

It cannot be installed upside down. The instrument must be placed horizontally on the floor so that the door to the thermal shock test can be easily opened and the noise during mechanical action is reduced.

2) Environment

We also need to maintain a well-ventilated space, so that the condenser can play the role of heat dissipation. You need to keep the instrument in a cool place. If the instrument is not exposed to sunlight, do not go near the stove and other heating elements. So as not to affect the freezing effect of the instrument.

When you open, close, or remove the test object in the furnace. Do not let the object touch the bonding side of the furnace door, so as not to damage the bonding side and shorten its service life. In addition, the ground around and at the bottom of the fuselage should always be kept clean to avoid accidents and performance degradation due to a large amount of dust inhalation of the unit.

Do not adjust the set points of the two overtemperature protectors in the distribution box. Adjusted before delivery, the protection switch is used to protect the heating tube and humidifier tube to prevent air combustion and water shortage alarm. Thermal shock test chamber set point = temperature set point + 20℃~ 30℃.

Tap water inspection and maintenance, water pipe, easy plugging device. Please be sure to check regularly whether there is water leakage, or a plugging phenomenon, if so, please exclude or notify the company in time.

3) Test chamber voltage

Use a dedicated switch for power switches. Do not use the power cord of the plug with other motors.

Do not place it on the floor or in a damp place to avoid stepping on or leaking electricity. The transformer should be provided at a lower supply voltage, raising the voltage to the rated value. Do not burn out the compressor motor due to low voltage. When the instrument is tested, the operating door should not be opened for a long time to avoid water droplets in the temperature control room.

4) Test chamber protection cleaning

You should always keep it clean. When the external test chamber is cleaned, apply some varnish and wipe with a soft dry cloth. If it is too dirty, wash it with neutral detergent and water. Do not use brushes, powder, acid, benzene, or hot water. Wipe the inside and outside of the machine, the back or the wall is easy to accumulate dust, and pay attention to the heat dissipation of the condenser.

If the model is water-cooled, pay special attention to the treatment of water quality. The use of groundwater should be avoided as much as possible. Because the groundwater contains more minerals, it is easy to cause the scale of the instrument, affecting the cooling effect of the instrument, which will reduce the service life of the humidity and temperature control room.

In fact, the high current contacts in the distribution room and the distribution room should be cleaned and serviced at least once a year. Loose contact will put the entire equipment in dangerous working conditions. When cleaning, please use a vacuum cleaner to remove indoor dust.

5) Some considerations

  • Please remember that the electrical room should be cleaned at least once a year. Use a vacuum cleaner to remove indoor dust. The exterior of the hot and cold shock chamber should be cleaned once a year or more and cleaned with soapy water.
  • The most important thing is that the radiator (condenser) of the refrigeration unit should be regularly maintained and kept clean. Because the condenser’s sticky dust will cause the compressor’s high-pressure switch to jump and a false alarm.
  • In addition, the condenser of the hot and cold shock chamber should be regularly maintained every month. After powering on the condenser, use a vacuum cleaner to remove the dust attached to the condenser heat network. Or blow it away with a stiff brush or high-pressure nozzle.
  • When the test time arrives, you must take the test item in the off-state. And the staff must wear dry, electric, heat-resistant gloves. What’s more, internal impurities should be removed before the equipment is run.

The above is the maintenance method of thermal shock test equipment. I hope you will adopt it. The equipment also requires meticulous maintenance. Perform careful maintenance of the instrument. Not only can avoid the operator’s injury but also can make the instrument long-term use.

Since the operation of a thermal shock chamber involves high and low temperatures, there are several cases that you should be aware of.

  • Test or store samples of flammable, explosive, volatile substances or samples of stored corrosive substances should be avoided
  • Inspection or storage of biological samples is not allowed
  • Detection, storage of strong electromagnetic radiation source sample detection, storage of radioactive material sample detection, storage of highly toxic substance samples
  • Detection or storage of samples that may produce flammable, explosive, volatile, highly toxic, corrosive, and radioactive substances during testing or storage

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