BS-HLC-80L

I. Technical Parameters

Serial Number	Project Name	Technical Specifications
1.1	Equipment Name	Programmable High and Low Temperature Testing Machine
1.2	Equipment Introduction	The Programmable High and Low Temperature Testing Machine belongs to macro-climate simulation environmental equipment. It is applicable for the temperature aging tests of electrical and electronic products in industries such as new energy, automotive, household appliances, semiconductors, electronics, aerospace, universities, and instrumentation components, as well as adaptability tests under high-temperature, low-temperature, and high-low temperature alternating environmental conditions.
1.3	Equipment Model	BS-80DD
1.4	Effective Volume	80L
1.5	Inner Chamber Dimensions	400500400 (WHD) (mm)
1.6	Outer Chamber Dimensions
Front-back structure: approximately 65013801350 (WHD) (mm)Left-right structure: approximately 9501380850 (WHD) (mm)(Subject to the final confirmed 3D drawings)
1.7	Temperature Range	-40℃~150℃
1.8	Heating Rate	-40℃ ~ 150℃ ≥3℃/min (non-linear throughout the process, acceptance under no-load condition)
1.9	Cooling Rate	150℃ ~ -40℃ ≥1℃/min (non-linear throughout the process, acceptance under no-load condition)
1.10	Temperature Display Accuracy	0.01℃
1.11	Temperature Deviation	±2℃
1.12	Temperature Fluctuation	≤±0.5℃
1.13	Temperature Uniformity	≤2℃
1.14	Cooling Method	Air Cooling
1.15	Equipment Weight	250KG
1.16	Equipment Power	220V, 3KW
1.17	Others

The above performance indicators are measured under the conditions of no load, no test materials, and an ambient temperature of 25±2℃.2. 70dB (measured 1 meter away from the chamber door at a height of 1.5 meters) |

II. Testing Standards Compliance

Serial Number	Test Item	Standard Description
2.1	General Standards
GB/T 2423.2-2008 - Test Method: High TemperatureGB/T 2423.1-2008 - Test Method: Low TemperatureGJB150.4A－2009 - Low Temperature Test MethodGJB150.3A-2009 - High Temperature Test MethodGBT 2424.6-2006 - Environmental Testing for Electrical and Electronic Products - Performance Verification of Temperature Test ChambersGBT 2424.5-2006 - Environmental Testing for Electrical and Electronic Products - Performance Verification of Temperature Test Chambers
2.2	Acceptance Execution Standards
Manufacturing standards: GB/T10586-2006, GB/T10592-2008Verification standards: GB/T5170.2-2017, GB/T5170.5-2016Technical standards: Accepted according to the signed technical index requirements

III. Equipment Structure

Serial Number	Project Name	Technical Specifications
3.1	Chamber Structure	Integrated (left-right/front-back) frame structure, welded with national standard channel steel. The equipment is sturdy and durable, with low vibration and noise during operation, ensuring overall reliability and safety.
3.2	Inner Chamber Material	Made of 1.0mm thick SUS #304 stainless steel; fully welded to ensure the sealing performance of the inner chamber. The bottom is reinforced to bear a load of ≥300KG on average.
3.3	Outer Chamber Material	Made of 1.2MM thick cold-rolled steel plate, double-sided sprayed, in blue and white color. (Customizable according to customer requirements, color swatches or color numbers can be provided)
3.4	Insulation Material	The insulation layer is 100MM thick, made of fire-resistant, high-strength rigid polyurethane foam insulation material, with a thermal insulation coefficient of less than 0.0212kcal/m∙hr.
3.5	Chamber Door Structure	Single-door. A double-layer silicone rubber sealing strip is used between the door and the chamber, which is resistant to high and low temperatures and anti-aging, ensuring sealing performance. An anti-condensation and anti-frost electric heating device is installed on the door frame and door edge to prevent condensate from forming on the chamber surface.
3.6	Test Observation Window	One vacuum multi-layer explosion-proof glass observation window is installed. The window has an anti-fog and anti-frost design: the periphery of the window is heated by film coating to prevent frost and water vapor condensation. A high-brightness energy-saving safety light is installed above the observation window (which can be manually turned on and off directly).
3.7	Airway Components	Equipped with a circulating fan, motor, extended aluminum shaft, and a multi-vane circulating fan with a structure resistant to high and low temperatures, achieving forced convection and vertical diffusion circulation. The air outlet is adjustable.
3.8	Sample Shelf	Made of stainless steel, with 2 sets of brackets, which can be adjusted up and down freely (customizable according to customer requirements).
3.9	Test Hole	One test hole 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 Light	A three-color light is installed. Green indicates operation, yellow indicates stop, and red indicates failure.
3.11	Drainage Trough	There are drainage troughs around the inside of the chamber to facilitate the discharge of condensate and prevent internal water accumulation.
3.12	Pressure Balance Hole	A pressure balance hole is installed inside the chamber to balance the pressure inside and outside the chamber.
3.13	Universal Wheels	Universal wheels are installed at the bottom of the equipment to facilitate relocation, movement, and positioning.

IV. Circulation System

Serial Number	Project Name	Technical Specifications
4.1	Air Discharge Method	Forced internal circulation, with an air discharge mode of upper outlet and lower return. The guide vanes at the air outlet can disperse cold and hot air evenly and stably throughout the chamber.
4.2	Circulating Motor	Long-axis motor, with the main body placed outside the chamber, unaffected by the internal temperature and humidity of the chamber. The long shaft extends directly into the chamber, insulated and sealed with silicone.
4.3	Centrifugal Fan	Multi-vane centrifugal aluminum fan, which is lightweight, has a large air volume, high air pressure, is resistant to high and low temperatures, has a small expansion coefficient, and low operating noise.
4.4	Circulating Air Duct	The circulating air duct is matched with the refrigeration and heating systems. The sealing plate closely adheres to the evaporator and heating tubes, and the circulating air can fully carry away the cold and heat energy of the evaporator and heating tubes.
4.5	Sensor	Class A platinum resistance PT100+T temperature sensor, with stable operation and accurate detection.

V. Refrigeration System

Serial Number	Project Name	Technical Specifications
5.1	Refrigeration Method	Compression refrigeration
5.2	Compressor	Fully enclosed compressor from "Taikang", France
5.3	Evaporator	High-efficiency multi-stage finned evaporator with hydrophilic film (thickened fins)
5.4	Condenser	Shell-and-tube condenser (air-cooled)
5.5	Refrigerant	Non-fluorine environmentally friendly refrigerant R404A from DuPont, USA
5.6	Thermal Expansion Valve	Controls the opening of the expansion valve through the superheat degree of the gaseous refrigerant at the evaporator outlet
5.7	Oil Separator	Separates the refrigeration oil from the refrigerant, enabling each to perform its function
5.8	Drying Filter	The filter blocks solid particles such as iron filings, welding slag, and dirt to prevent blockages; the dryer absorbs moisture circulating with the refrigerant to prevent "ice blockage" inside the pipeline.
5.9	Solenoid Valve	Danfoss, roughly adjusts the refrigeration capacity of the entire refrigeration system
5.10	Leak Detection Method	The entire system pipeline is leak-tested by nitrogen pressurization for 24 hours.
5.11	Vibration Damping Design	The compressor chassis is isolated from vibration: the chassis has a waterproof design; the self-evaporating waterproof chassis effectively prevents condensate from flowing out. Moving parts such as the compressor and fan are vibration-isolated, designed for low noise.

VI. Heating System

Serial Number	Project Name	Technical Specifications
6.1	Heating Method	Driven by imported SSR (Solid State Relay), with contactless control, no noise, no electric arc, stable and reliable.
6.2	Heating Tube	Made of stainless steel finned nickel-chromium wire high-speed heater.
6.3	Heating System and Electrical Components	Completely independent system, without affecting the refrigeration and humidification systems. Temperature control is calculated by a microcomputer and automatically adjusted by PID. The output power changes according to the comparison result between the actual temperature value and the set value to achieve high precision, high efficiency, and high stability. Main low-voltage electrical components are all products of well-known brands: "Schneider" AC contactors, thermal overload relays, "OMRON" small intermediate relays, Delixi signal lights, switches, and circuit breakers, etc.

VII. Control System

Serial Number	Project Name	Technical Specifications
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, LED backlight display. The set (SV) and actual (PV) values of temperature and humidity are directly displayed. It supports Chinese/English language switching display and true-color touch input. It can display the execution program number, segment number, remaining time, and number of cycles, as well as the running time. It also supports program editing and graphical curve display.
7.3	Set Temperature and Humidity	Can be set independently according to the test temperature range conditions
7.4	Data Recording	With a built-in recording program, the memory in the controller can store 3 months of 24-hour operation data. It can automatically generate temperature and humidity curve files, data, operation records, alarm records, etc., and can present set values, actual values, number of cycles, temperature segments, temperature values, time, etc. in both numerical and graphical forms.
7.5	External Connections	Communication methods such as USB, RS485, and LAN ports are available, and it can be connected to a computer for full-function control, storage, printing, and recording.
7.6	Operation Modes	Fixed value/program/slope operation modes
7.7	Input Method	RT100×1 (dry bulb)/4~20mA are both built-in
7.8	Output Method	12 points (temperature×1, END×1, RUN×1, T1~T4, TROUBLE×1, H1×1, TIME SIGNAL×3)
7.9	Display Accuracy	Temperature: 0.01℃, Time: 0.01 second
7.10	System Capacity	1～120 test programs (i.e., can be divided into 120 program groups), with a maximum of 1～1200 steps (i.e., 1200 action steps), and a single-step time of 9999 hours and 59 minutes.
7.11	Login Method	Login with Chinese and English names/Chinese and English test names/display of running time
7.12	Deviation Correction	Prevents parameter deviations caused by various factors. After correction, the temperature and humidity values are more accurate and standard.
7.13	System Functions	Timing control, reservation control, power-off recovery, fault display
7.14	Password Control	Multiple layers of password protection can be set to prevent unauthorized use and modification of internal parameters by non-operators

VIII. Safety Protection Devices

Serial Number	Technical Specifications
8.1	High and low pressure protection for the compressor system
8.2	Overload, overcurrent, and over-temperature protection for the compressor
8.3	Oil shortage protection for the compressor
8.4	Overcurrent and over-temperature protection for the fan
8.5	Power supply phase loss, phase sequence error, phase imbalance protection, leakage protection
8.6	Ground protection for the test chamber shell
8.7	Independent over-temperature protection for the working chamber

IX. Main Accessories List

Serial Number	Accessory Name	Brand	Remarks
9.1	Control Instrument	Weishuo
9.2	Compressor	Taikang, France
9.3	Refrigerant (R404)	DuPont, USA
9.4	Air-cooled Condenser	Customized by Baoshi
9.5	Evaporator	Customized by Baoshi
9.6	Expansion Valve	Danfoss, Denmark
9.7	Capillary Tube	Daikin
9.8	Oil Separator	Emerson, USA
9.9	Solenoid Valve	CASTEL, Italy
9.10	Drying Filter	Danfoss, Denmark
9.11	Heating Tube	Finned nickel-chromium alloy electric heating tube (protected by a titanium tube shell)
9.12	Over-temperature Protection Device	Rainbow, South Korea
9.13	Switch	Delixi
9.14	Contactor	Schneider
9.15	Cable	Shangshang

X. Installation and Use Conditions of the Testing Equipment

Keywords	Specific Requirements
10.1 Passage for Placement	The passage should allow the passage of the test chamber's external dimensions. Special attention should be paid to corners, door entry dimensions, elevator dimensions, etc. For installation sites on upper floors or underground spaces, the floor load-bearing capacity should be ≥500kg/m².
10.2 Floor Space and Surrounding Dimensions

Space around the equipment: A: ≥60cm, B: ≥60cm, C: ≥ 80cm, D: ≥ 80cm- The ground should be flat, with good ventilation, and free of flammable, explosive, and corrosive gases and dust. |

| 10.3 Other Requirements for the Test Chamber's Use Environment |

Ambient temperature: 5～28℃ for optimal performance- Humidity: ≤85％RH- Air pressure: 86KPa～106KPa- Electromagnetic environment: No strong vibrations and no strong electromagnetic radiation sources around the equipment- Site drainage: A floor drain should be available within 2 meters of the test chamber |

| 10.4 Safe Storage Conditions for the Test Chamber | When the test chamber is not in use, the storage environment should always be >0℃. If the storage environment is <0℃, for water-cooled test chambers and humidity test chambers, all remaining water in the equipment should be drained in a timely manner to prevent pipes from being damaged by freezing. |

| 10.5 Voltage | Three-phase four-wire system, voltage: 380V±10%, 50HZ, power: 3KW |

| 10.6 Grounding Requirements | Ground resistance <4Ω, independent grounding, that is, TN-S grounding system, using a three-phase five-wire AC power supply (mixing the neutral and ground wires is strictly prohibited) |

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