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| Item No. | Parameter Name | Technical parameters |
| 1.1 | Equipment Name | Programmable High and Low Temperature Test Chamber |
| 1.2 | Equipment Introduction | The Programmable High and Low Temperature Test Chamber is a type of large-scale climate simulation environmental equipment. It is suitable for conducting temperature aging tests and adaptability evaluations for electrical and electronic products across various industries. These industries include new energy, automotive, home appliances, semiconductors, electronics, aerospace, universities and colleges, and instrumentation components. The chamber is designed to test product performance under environmental conditions of high temperature, low temperature, and alternating high and low temperatures. |
| 1.3 | Equipment Model | BS-80DG |
| 1.4 | Effective Volume | 80L |
| 1.5 | Internal Chamber Dimensions | 400*500*400 (W*H*D)(mm) |
| 1.6 | External Dimensions | Front-back Structure:650*1380*1350(W*H*D) (mm) Lateral Structure:950*1380*850(W*H*D) (mm) ( Subject to the final confirmed 3D drawing ) |
| 1.7 | Temperature Range | -40ºC~150ºC |
| 1.8 | Heating Rate | -40ºC ~ 150ºC ≥3ºC/min (Full-process Non-linearity & No-load Acceptance) |
| 1.9 | Cooling Rate | 150ºC ~ -40ºC ≥1ºC/min (Full-process Non-linearity & No-load Acceptance) |
| 1.10 | Temperature Display Accuracy | Temperature:0.01ºC |
| 1.11 | Temperature Deviation | Temperature:±2ºC |
| 1.12 | Temperature Fluctuation | Temperature:≤±0.5ºC |
| 1.13 | Temperature Uniformity | Temperature:≤2ºC |
| 1.14 | Cooling Method | Air Cooling |
| 1.15 | Weight | 250KG |
| 1.16 | Power | 220V/3KW |
| 1.17 | Others | All the above performance indicators refer to the data measured under the conditions of no load, no test sample, and ambient temperature of 25±2ºC. Operating Noise:70dB (measured at 1 meter from the chamber door and 1.5 meters in height). |
| Item No. | Standards | Explanation of Standards |
| 2.1 | General standards | GB/T2423.2-2008 Test Method: High Temperature |
| GB/T 2423.1-2008 Test method: Low Temperature |
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| GJB150.4A-2009 Low Temperature Test Method |
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| GJB150.3A-2009 High Temperature Test Method |
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| GBT 2424.6-2006 Environmental Testing for Electrical and Electronic Products - Performance Qualification Report of Temperature Test Chambers |
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| GBT 2424.5-2006 Environmental Testing for Electrical and Electronic Products - Performance Qualification Report of Temperature Test Chambers |
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| 2.2 | Acceptance Execution Standards | Manufacturing Standards:GB/T10586-2006,GB/T10592-2008 |
| Verification Standards :GB/T5170.2-2017,GB/T5170.5-2016 | ||
| Technical Standards: Acceptance shall be conducted in accordance with the signed technical index requirements |
| Item No. | Description | Technical Specification Parameters |
| 3.1 | Cabinet Structure | Integrated (left-right/front-back) frame structure, welded with national standard channel steel. The equipment is sturdy and durable, with low vibration and low noise during operation, while ensuring the overall reliability and safety performance of the equipment. |
| 3.2 | Inner Chamber Material | It adopts 1.0mm-thick SUS #304 stainless steel. The entire inner chamber is fully welded to ensure its sealing performance, with a reinforced bottom design that supports an average load of ≥300KG. |
| 3.3 | Outer Shell Material | It adopts cold-rolled steel plates with a thickness of 1.2mm, featuring double-sided spraying treatment and a blue-white color(Customizable according to customer requirements, color samples or color codes are available upon request). |
| 3.4 | Thermal Insulation Material | The thermal insulation layer has a thickness of 100mm and uses fire-resistant, high-strength rigid polyurethane foam insulation material. Thermal insulation coefficient: less than 0.0212 kcal/(m.hour). |
| 3.5 | Cabinet Door Structure | It is a single door, a double-layer silicone rubber sealing strip is used between the door and the chamber to ensure sealing performance, featuring resistance to high and low temperatures and anti-aging properties. An anti-condensation and anti-frost electric heating device is installed on the door frame and door edge to prevent condensation from forming on the chamber surface. |
| 3.6 | Test Observation Window | One vacuum multi-layer explosion-proof glass viewing window is provided; the surrounding area of the window is equipped with coated heating for anti-frost protection to prevent water vapor condensation. A safe, high-brightness, energy-saving lighting lamp (with manual on/off control) is installed above the viewing window. |
| 3.7 | Air Duct Components | It adopts a circulating fan with a motor, an aluminum extended shaft, and a high/low temperature-resistant aluminum alloy multi-blade circulating fan, achieving forced convection vertical diffusion circulation. The air outlet is adjustable. |
| 3.8 | Sample Shelf | It is made of stainless steel, equipped with 2 sets of brackets, and can be freely adjusted up and down (customizable according to customer requirements). |
| 3.9 | Test Port | One test port with a diameter of 50mm is reserved on the left side of the chamber, and one set of silicone plug + sealing cover is provided. |
| 3.10 | Three-Color Indicator Light | Green for normal operation, yellow for standby, and red for fault alarm. |
| 3.11 | Drainage Trough | Drainage troughs are provided around the interior of the cabinet, facilitating the discharge of condensed water and preventing internal water accumulation. |
| 3.12 | Balance Hole | A pressure balance hole is installed inside the chamber to balance the pressure between the inside and outside of the chamber. |
| 3.13 | Swivel Caster | Swivel casters are installed at the bottom of the equipment, facilitating the relocation, movement and positioning of the equipment. |
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| Item No. | Description | Technical Specification Parameters |
| 4.1 | Air Supply Method | It adopts a forced internal circulation mode with top air supply and bottom air return. The air deflector at the air outlet can disperse cold and hot air to the entire interior of the chamber, ensuring uniform and stable distribution. |
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| 4.2 | Circulation Motor | It is a long-shaft motor, installed outside the chamber, avoiding the influence of temperature and humidity inside the chamber. The long shaft extends directly into the interior of the chamber, with silicone insulation and sealing. |
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| 4.3 | Centrifugal Impeller | It is a multi-blade centrifugal circulating aluminum wind wheel, featuring light weight, large air volume, and high air pressure. Additionally, it exhibits resistance to high and low temperatures, a small expansion coefficient, and low operating noise. |
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| 4.4 | Circulating Air Duct | The circulating air duct is matched with the refrigeration and heating system, and the sealing plate is closely attached to the evaporator and heating tube, allowing the circulating air to fully absorb the cold energy from the evaporator and the heat energy from the heating tube. |
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| 4.5 | Sensor | Class A Platinum Resistance PT100+T Temperature and Humidity Sensor, featuring stable operation and accurate detection. |
| Item No. | Description | Technical Specification Parameters |
| 5.1 | Refrigeration Mode | Compressor-Based Refrigeration |
| 5.2 | Compressor | French "Tecumseh" Hermetic Compressor |
| 5.3 | Evaporator | High-Efficiency Multi-Stage Fin-and-Tube Evaporator with Hydrophilic Coating (Thickened Fin Type) |
| 5.4 | Condenser | Shell-and-Tube Condenser (Air-Cooled Type) |
| 5.5 | Refrigerant | Fluoride-Free Eco-Friendly Refrigerant, DuPont (USA) R404A |
| 5.6 | Thermal Expansion Valve | The core control logic of the thermal expansion valve is: The opening degree of the expansion valve is controlled by the superheat degree of the gaseous refrigerant at the evaporator outlet, thereby adjusting the flow rate of refrigerant entering the evaporator. |
| 5.7 | Oil Separator | The core function of the oil separator is to separate the refrigerating oil and refrigerant, allowing each substance to perform its respective function as required and preventing oil films from reducing heat exchange efficiency. |
| 5.8 | Filter-Drier | The filter-drier consists of two parts: the filter and the dryer. The filter is used to block solid particles such as iron filings, welding slag, and dirt, preventing them from clogging the passages; the dryer is used to absorb moisture circulating with the refrigerant, avoiding "ice blockage" inside the pipelines. |
| 5.9 | Solenoid Valve | Danfoss Solenoid Valve (for coarse adjustment of the cooling capacity of the entire refrigeration system) |
| 5.10 | Leak Detection Method | Nitrogen purging and pressure holding for 24 hours is adopted for leak detection testing of all pipelines in the entire system. |
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| 5.11 | Vibration Damping Design | Compressor Base and Vibration Isolation Treatment: The base features a water-leakage prevention design. It is a self-evaporating waterproof base that effectively prevents condensed water from leaking out. Vibration isolation treatment is applied to moving components such as the compressor and fan, achieving a low-noise design. |
| Item No. | Description | Technical Specification Parameters | |
| 6.1 | Heating Method | It adopts an imported SSR (Solid-State Relay) for driving, featuring contactless control, no noise, no electric arc, and stable reliability. | |
| 6.2 | Heating Tube | It adopts a stainless steel finned nickel-chromium wire high-speed heater. | |
| 6.3 | Heating System and Electrical Components | It is a completely independent system that does not affect the refrigeration and humidification systems. Temperature control is achieved through microcomputer calculation and PID automatic adjustment; the output power changes based on the comparison result between the actual temperature value and the set temperature value, so as to achieve high precision, high efficiency, and high stability. Major low-voltage electrical components all adopt products from well-known brands: "Schneider" AC contactors and thermal overload relays, "OMRON" small intermediate relays, and Delixi signal lamps, switches, and circuit breakers. | |
| Item No. | Description | Technical Specification Parameters |
| 7.1 | Control Method | Color Touch Screen + PLC Control System |
| 7.2 | Screen Display | 7-inch screen with a resolution of 800*480, 65535 true colors, and LED backlight display; direct display of temperature and humidity set values (SV) and actual values (PV); Chinese/English language switchable display with true-color touch input; capable of displaying execution program number, segment number, remaining time, cycle times, and operation time; program editing and graphic curve display. |
| 7.3 | Temperature and Humidity setting | Set it independently according to the test temperature range requirements. |
| 7.4 | Data Logging | Built-in recording program, the memory in the controller can store 3 months of 24hour operation data. It can automatically generate temperature and humidity curve files, data, operation records, alarm records, etc., and can display set values and actual values, cycle numbers, temperature segments, temperature values, time, etc. in both digital and graphical forms. |
| 7.5 | External Connection | Communication methods such as USB, RS485, and LAN ports are supported, enabling external connection to a computer for full-function control, data storage, printing, and recording. |
| 7.6 | Running Mode | Rated value/program/slope running mode. |
| 7.7 | Input Method | RT100×1 (dry bulb) / 4~20mA, both built-in simultaneously |
| 7.8 | Output Method | Temperature×1,Humidity×1,END×1,RUN×1,T1~T4, TROUBLE×1, H1×1, TIME SIGNAL×3. |
| 7.9 | Display Precision | Temperature:0.01ºC Time:0.01 seconds |
| 7.10 | System Capacity | 1~120 test programs (i.e., can be divided into 120 program groups), maximum 1~1200 steps (i.e., 1200 action steps), and single-step time up to 9999 hours 59 minutes. |
| 7.11 | Login Method | Chinese/English Name Login, Chinese/English Test Login, Operation Time Display. |
| 7.12 | Deviation Correction | It prevents parameter deviations caused by various factors; after correction, the temperature and humidity values can be more accurate and standardized. |
| 7.13 | System Functions | Sequence Control, Reservation Control, Power-off Recovery, Fault Display. |
| 7.14 | Password Control | Multi-level password protection can be set to prevent unauthorized use by non-operators and unauthorized modification of internal parameters. |
| Item No. | Technical Specification Parameters |
| 8.1 | The compressor adopts a system high-low pressure protection (device). |
| 8.2 | Compressor Overload, Overcurrent, and Over-temperature Protection. |
| 8.3 | Compressor Oil Lack Protection. |
| 8.4 | Fan Overcurrent and Over-temperature Protection. |
| 8.5 | Power Phase Loss Protection, Phase Sequence Error Protection, Phase Unbalance Protection, Leakage Protection. |
| 8.6 | Test Chamber Enclosure Grounding Protection. |
| 8.7 | Independent Over-temperature Protection for Working Chamber. |
| Item No. | Accessory Name | Brand | Remarks |
| 9.1 | Control Instrument | Weishuo | |
| 9.2 | Compressor | Tecumseh(France) | |
| 9.3 | Refrigerant(R404) | DuPont(USA) | |
| 9.4 | Air-Cooled Condenser | Customized | |
| 9.5 | Evaporator | Customized | |
| 9.6 | Expansion Valve | DANFOSS(Denmark) | |
| 9.7 | Capillary Tube | Daikin(Japan) | |
| 9.8 | Oil Separator | Emerson Oil Separator (USA) | |
| 9.9 | Solenoid Valve | CASTEL Solenoid Valve (Italy) | |
| Key Point | Specific Requirements | ||
| Space Requirements: Positioning & Handling, Installation Footprint Dimensions, and Placement Environment Requirements | |||
| 10.1 Installation Access It shall be able to pass through according to the external dimensions of the test chamber, with special attention to specific links such as corners, door entry dimensions, and elevator dimensions. For installation sites on upper floors or in underground vacant spaces, the floor load-bearing requirement of the site shall be ≥ 500kg/m². |
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| 10.2 Floor Space and Peripheral Relevant Dimensions | |
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| Space around the equipment shall comply with the following: A: ≥ 60cm; B≥ 60cm; C≥ 80cm; D≥ 80cm | |||
| The floor shall be level, with good ventilation, and free from flammable, explosive, corrosive gases and dust. | |||
| 10.3 Other Environmental Requirements for Test Chamber Operation | Environmental Temperature Requirements | 5~28ºC Ensure Optimal Performance | |
| Humidity Requirements | ≤85%R.H | ||
| Air Pressure Requirements | 86KPa~106KPa | ||
| Electromagnetic Environment | There shall be no strong vibration or strong electromagnetic radiation sources around the equipment. | ||
| Site Drainage | A drainage floor drain shall be provided within 2 meters of the test chamber. | ||
| 10.4 Safe Storage Conditions for Test Chambers | When the test chamber is not in use, the storage environment of the test chamber shall be maintained at a temperature consistently above 0ºC. | ||
| If the storage environment temperature is below 0ºC, for water-cooled test chambers and humidity chambers, all residual water in the equipment shall be drained completely in a timely manner to prevent pipe damage caused by freezing. | |||
| Power and Related Conditions | |||
| 10.5 Grounding Requirements | The grounding resistance shall be less than 4Ω, with independent grounding (i.e., TN-S grounding system), and a three-phase five-wire AC power supply shall be adopted (it is strictly prohibited to mix the neutral wire and ground wire). | ||
| Item No. | Description | Service Content |
| 12.1 | Equipment Warranty Period | The supplier shall provide a 1-year warranty for the test equipment starting from the date of acceptance. During the warranty period, fees such as material fees and repair fees shall be waived (excluding damages caused by human factors or natural disasters). The supplier commits to providing lifelong free technical support and conducting equipment operation consultation and inspection twice a year. |
| 12.2 | Service Response Time | Upon receiving the customer's maintenance request notification, the supplier shall respond within 2 hours and arrive at the customer's site within 24 hours, making every effort to repair the product promptly. The company has sufficient spare parts to provide timely, fast, and high-quality services. |
| 12.3 | After-Sales Team | The company has a dedicated After-Sales Service Department, with more than 5 after-sales service engineers. Meanwhile, it has set up office-based service stations and built a comprehensive customer service system, as well as established customer files. In addition to providing technical consultation services to customers, the company is also responsible for collecting and organizing customer complaints and consultation information. It ensures that the problems and requirements raised by customers are handled in a timely manner, and tracks and verifies the handling status while establishing corresponding records. These efforts provide a basis for improving quality and enhancing products. |
| 12.4 | List of Randomly Included Documents | One copy each of the Product User Manual, Instrument Operation Manual, Product Certificate of Conformity, and Product Warranty Card. |
| 12.6 | Installation, Commissioning and Training | After the equipment arrives at the buyer's factory, our party shall be responsible for the on-site installation, commissioning and trial operation of the equipment. Meanwhile, our party shall provide free training to the buyer's staff to ensure that the buyer's relevant personnel can independently complete all tests specified in the contract, perform equipment maintenance and troubleshoot basic faults. |
| 12.7 | Installation, Commissioning and Acceptance | The buyer shall be responsible for providing the external conditions required for equipment installation in accordance with the supplier's requirements, and the installation shall be conducted by our company. The supplier shall be responsible for on-site installation and commissioning at the buyer's location. After the completion of installation and commissioning, personnel from both the supplier and the buyer shall sign the commissioning and acceptance report to confirm approval. |
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