Explosion-proof constant temperature and humidity chambers are also extensively employed across various sectors including electronics and electrical engineering, aerospace, new energy, chemical and pharmaceutical manufacturing, automotive industry, military applications, and research institutions. Within the electronics and electrical sector, these chambers facilitate environmental adaptation testing for electronic products. In the chemical industry, they assess the safety and stability of chemical products. The automotive sector employs them to simulate diverse climatic conditions for testing vehicle components. Military applications ensure the reliability and durability of equipment and materials under extreme environmental conditions. Research institutions utilise them to simulate experimental conditions for studies in materials science, environmental science, and related disciplines.
1. The product complies with IIB explosion-proof standards and is suitable for hazardous locations with explosive gas mixtures in temperature classes T1 to T4. It achieves an explosion-proof rating of IIB T4. The product has been certified as compliant by the ****** Electrical Safety Quality Inspection and Testing Centre and holds a valid ********* explosion-proof certification;
2. The electrical control system employs a composite explosion-proof technology combining flameproof and encapsulated designs. The operational switch is a passive switch, generating no mechanical sparks during operation for safe and reliable use. The sensor is equipped with an external safety barrier for explosion-proof isolation;
3. The explosion-proof digital temperature controller features a menu-driven interface with a 5.7-inch LCD screen and standard auto-lock function to prevent accidental operation. A single screen displays set temperature, operating temperature, constant-temperature duration, heating status, and other information for straightforward operation. The microcomputer PID control system ensures precise temperature regulation with minimal fluctuation;
4. Intelligent microprocessor-based temperature and humidity control system incorporates PID logic operations. It automatically corrects temperature and humidity deviations based on computational results, achieving precise control;
5. Features a programmable start function with multiple timing modes: forward countdown, reverse countdown, constant-temperature timing, and start-up timing. Timing units are selectable in minutes or hours;
6. Core components (refrigeration cycle) utilise imported brand compressors and circulation fans. The compressor employs cast-sealed explosion-proof technology for safety and reliability. Utilises fluorine-free, environmentally friendly refrigerant to foster a healthy laboratory environment;
7. Internal air circulation system employs high-temperature resistant, low-noise explosion-proof axial fans for forced circulation. The refrigeration system's classic arrangement has undergone years of market validation for proven stability, safety, and reliability;
8. Employing the internationally favoured internal humidification method, it offers superior temperature and humidity stability compared to external humidification. The internationally renowned explosion-proof humidity sensor achieves precision at internationally advanced levels; real-time water tank level monitoring enables automatic water replenishment;
9. Automatic parameter saving during emergencies with power-on recovery function, alongside sensor self-diagnosis, over-temperature, and fault alarm capabilities;
10. The inner chamber employs 304 mirror-finished stainless steel with rounded corners, while the outer casing utilises premium cold-rolled steel plate. The surface undergoes electrostatic powder coating, delivering a durable, long-lasting finish with anti-static properties;
11. Magnetic seal door facilitates easy opening with excellent sealing performance; adjustable shelves optimise space utilisation;
| Model | HLTS-9810EX | HLTS-9815EX | HLTS-9825EX | HLTS-9830EX | HLTS-9850EX |
| Explosion-proof rating | IIBT4 | ||||
| Temperature range | 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 | 30–95% RH | ||||
| Humidity deviation | ±3% RH | ||||
| Power supply voltage | AC 220V/10A | ||||
| Timing range | SC Type: 1–9999 min HC Type: 9999 min × 30 groups × 99 segments | ||||
| Operating mode | Fixed-value timed operation/Programmed operation | ||||
| Internal chamber (mm) | 450x380x590 | 480x400x780 | 580x500x850 | 580x540x950 | 700X700X1020 |
| External dimensions (mm) | 580x610x1160 | 605x625x1375 | 710x725x1540 | 710x765x1640 | 825x925x1780 |
| Volume | 100L | 150L | 246L | 297L | 505L |
| Gross/net weight (kg) | 113/98 | 130/115 | 180/155 | 190/165 | 286/255 |
| Standard shelves | 2 | 3 | |||
| Rated power | 1KW | 1.2KW | 1.8KW | 2KW | 2.4KW |
1. GB/T 3836.1-2021 Explosive Atmospheres - Part 1: Equipment - General Requirements
2. GB/T 3836.2-2021 Explosive Atmospheres - Part 2: Equipment Protected by Flameproof Enclosures ‘d’
3. GB/T 3836.9-2021 Explosive Atmospheres - Part 9: Equipment Protected by Encapsulation ‘m’
4. GB/T 10586-2006 Technical Conditions for Humidity and Heat Test Chambers
5. GB/T 2424.6-2006 Environmental Testing of Electrical and Electronic Products - Performance Verification of Temperature/Humidity Test Chambers
6. GB/T 2423.1-2008 Environmental Testing of Electrical and Electronic Products - Part 2: Test Methods - Test A: Low Temperature
7. 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
Products provided by famous enterprises are deeply trusted by users.
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.
2025/11/27
2025/11/12
2025/11/12
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