Constant Temperature And Humidity Chamber

Constant temperature and humidity chambers, also known as constant temperature and humidity test chambers, constant temperature and humidity testers, or programmable wet-heat alternating test chambers, are suitable for industries including health quarantine, pharmaceutical inspection, pharmaceutical manufacturing, biology, animal husbandry, textiles, electronics, rubber and plastics, food production, petrochemicals, and other industries. They provide the environmental conditions required for testing the heat resistance, cold resistance, dry resistance, humidity resistance, and ageing properties of products in these sectors. These chambers are used to test and determine the parameters and performance of electrical, electronic, and other products and materials after exposure to high-temperature, low-temperature, alternating humidity and temperature, or constant temperature environmental changes.

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Product Introduction
Selection Table
Industry Standards
Safety Protection
Optional Accessories

1. Intelligent microprocessor-based temperature and humidity control system featuring PID logic functionality, which automatically corrects deviations based on computational results to achieve precise regulation;

2. 5.7-inch LCD controller with triple-row digital display, simultaneously showing operating temperature, setpoint temperature, constant-temperature duration, heating status, and over-temperature alarm status for real-time monitoring of experimental progress;

3. Core components (refrigeration cycle) utilise imported brand compressors and circulation fans, employing fluorine-free environmentally friendly refrigerant to foster a healthy laboratory environment;

4. Internal air circulation system employs high-temperature resistant, low-noise axial fans for forced circulation. The refrigeration system's classic arrangement has undergone years of market validation, ensuring stability, safety, and reliability;

5. Employs internationally favoured internal humidification, offering superior temperature and humidity stability compared to external humidification. International brand humidity sensors achieve precision at internationally advanced levels;

6. Automatically saves parameters during emergencies with power-on recovery functionality, alongside sensor self-diagnosis, over-temperature, and fault alarm capabilities;

7. Inner chamber constructed from 304 mirror-finish stainless steel with rounded corner design. Outer casing utilises premium cold-rolled steel plate with electrostatic powder coating, delivering durable, static-resistant paintwork;

8. Extra-large observation window featuring double-layered, double-glazed tempered glass for clear visibility throughout experiments, ensuring complete control;

9. Magnetic seal door for effortless opening and superior sealing performance;

10. Adjustable shelves for optimised space utilisation;

Model	LHS-100SC	LHS-150SC	LHS-250SC	LHS-300SC	LHS-500SC
Model	LHS-10CHC	LHS-150HC	LHS-250HC	LHS-300HC	LHS-50CHC
Temperature Range	SC Type: With humidification 10–65°C; Without humidification 5–65°C HC Type: With humidification 5–65°C; Without humidification 0–65°C
Temperature Resolution	0.1°C
Temperature Fluctuation	High temperature: ±0.5°C Low temperature: ±1°C
Temperature Uniformity	±1.5°C
Humidity Range	SC Type: 40–85% RH HC Type: 30–95% RH
Humidity Deviation	SC Type: ±5% RM HC Type: ±3% RH
Temperature Control Method	5.7-inch LCD digital display controller
Circulation Method	Forced convection
Compressor	Air-cooled hermetic compressor
Refrigerant	CFC-free and environmentally friendly
Defrosting Method	Intelligent control with automatic defrosting
Power Supply Voltage	AC 220V/10A
Timing Range	SC Type: 1~9999 min H Type: 9999 minu: 30 groups x 99 segments
Operating Mode	Fixed-value timed operation/programmed operation
Internal Chamber (mm)	450x380x590	480x400780	580x500x850	580z540x950	800X700X900
External Dimensions (mm)	580x610x1160	605x625x1375	710x725x1540	710x765x1640	1000X1100X1860
Volume	100L	150L	246L	297L	504L
Gross/Net Weight (kg)	113/98	130/115	180/155	190/165	286/255
Standard Shelves	2			3
Rated Power	1KW	1.2KY	1.4KW	2KY	2.4KW

1. GB/T 10586-2006 Technical Specifications for Humidity and Heat Test Chambers

2. GB/T 2424.6-2006 Environmental Testing of Electrical and Electronic Products - Performance Verification of Temperature/Humidity Test Chambers

3. GB/T 2423.1-2008 Environmental Testing of Electrical and Electronic Products — Part 2: Test Methods — Test A: Low Temperature

4. GB/T 2423.102-2008 Environmental Testing of Electrical and Electronic Products — Part 2: Test Methods — Test: Temperature (Low Temperature, High Temperature)/Low Atmospheric Pressure

1. Over-temperature alarm
2. Overcurrent and overload protection
3. Rapid fuse
4. Phase loss protection
5. Earth leakage circuit breaker

1. 7-inch touchscreen controller
2. Printer
3. USB interface
4. Network port and software
5. Independent temperature limiter
6. Ultraviolet sterilisation system
7. Test ports 25/50mm
8. BOD socket

Shanghai Dengsheng Instrument Manufacturing Co., Ltd

Shanghai Dengsheng Instrument Manufacturing Co., Ltd. is a high-tech enterprise integrating R&D, production, sales, and service. We specialize in the manufacture of high-end laboratory equipment, including ovens, incubators, industrial furnaces, and environmental test chambers.

We boast an 8,000-square-meter modern production facility, a dedicated R&D team, 23 national patents, and ISO-9001 quality management system certification. Our solutions are widely used in cutting-edge fields such as aerospace, semiconductors, biomedicine, automotive, and new materials. We have established in-depth partnerships with top universities and industry leaders, and our products are exported to many countries and regions around the world.

Adhering to the principles of "Integrity, Innovation, and Win-Win," we are committed to becoming your trusted partner with reliable quality and dedicated service.