The explosion-proof constant-temperature chamber is a microbiological culture apparatus featuring a dual-temperature regulation system for both cooling and heating, with programmable operation capabilities. It serves as essential experimental equipment for laboratories across various sectors including public health, genetic engineering, environmental protection, pharmaceutical testing and manufacturing, animal husbandry and aquaculture, water analysis, BOD determination, plant cultivation, breeding experiments, and food science. This apparatus finds extensive application in low-temperature constant-temperature testing, culture experiments, and environmental testing.
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 operating switch is a passive switch that generates no mechanical sparks during operation, ensuring safe and reliable use. Sensors are equipped with external safety barriers for explosion-proof isolation;
3. The explosion-proof digital temperature controller features a menu-driven interface with a 5.7-inch LCD screen. It includes a standard auto-lock screen function to prevent accidental operation; A single screen displays set temperature, operating temperature, constant temperature duration, heating status, and other information, ensuring straightforward operation. The microprocessor-based PID control system delivers precise temperature regulation with minimal fluctuation;
4. The intelligent microprocessor temperature control system incorporates PID logic operations. Based on calculation results, it automatically corrects temperature deviations to achieve precise control;
5. Incorporates 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. The internal air circulation system employs a high-temperature resistant, low-noise explosion-proof axial fan for forced circulation. The refrigeration system utilises a classic arrangement proven stable through years of market testing, ensuring safety and reliability;
8. Automatically monitors operational status. Upon exceeding the limit temperature, heating is automatically cut off with audible and visual alarms alerting operators to ensure uninterrupted experiments. Parameters are automatically saved during emergencies, featuring power-on recovery functionality. Additionally equipped with sensor self-diagnosis, over-temperature, and fault alarm capabilities;
9. The inner chamber employs 304 mirror-finished stainless steel with rounded corners, while the outer casing utilises premium cold-rolled steel plate with electrostatic powder coating. The finish is durable, long-lasting, and anti-static;
10. Magnetic seal door facilitates easy opening with excellent sealing performance; adjustable shelves optimise space utilisation;
11. Double-door construction allows 360-degree observation of the working chamber through the inner tempered glass door when the outer door is open, without affecting internal temperature.
| Model | HLIS-5070ET | HLIS-5100ET | HLIS-5150ET | HLIS-5250ET | HLIS-5300ET | HLIS-5500ET | HLIS-5800ET |
| Explosion-proof rating | IIBT4 | ||||||
| Temperature range | 5~65℃ | ||||||
| Temperature resolution | 0.1℃ | ||||||
| Temperature fluctuation | ≤±0.5℃ | ||||||
| Temperature uniformity | ±1℃ | ||||||
| Temperature control method | 5.7-inch liquid crystal widescreen digital display/program control (P-type 30 segments) | ||||||
| Circulation method | Forced convection | ||||||
| Compressor | Air-cooled hermetic compressor | ||||||
| Refrigerant | CFC-free environmentally friendly | ||||||
| Dehumidification method | Intelligent control automation | ||||||
| Power supply voltage | AC220V/104 | ||||||
| Timing range | 1–9999 min | ||||||
| Operating mode | Fixed-value timed operation/programmed operation | ||||||
| Internal chamber dimensions (m) | 450π320π500 | 450π380π590 | 4B0π390π780 | 580π500πB50 | 580x540z950 | 700π700x1020 | 900πB50π1050 |
| External dimensions (m) | 575z545x1070 | 575x605x1160 | 605x625x1350 | 705x725x1525 | 705x765x1640 | 825*925*1780 | 1030π1080π1850 |
| Volume | 72L | 100L | 146L | 246L | 297L | 500L | 803L |
| Gross/net weight (kg) | 105/80 | 113/8B | 130/105 | 186/156 | 195/165 | 275/225 | 378/323 |
| Standard shelves | 2 | 3 | |||||
| Rated power | 0.4KT | 0.5KW | 0.5KW | 0.7KT | 1KW | 1.5kw | 2kw |
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/T5170.1-2016 Environmental testing methods for electrical and electronic products - Part 1: General principles
5. GB/T 2423.1-2008 Environmental Testing of Electrical and Electronic Products — Part 2: Test Methods — Test A: Low Temperature
6. GB/T 10589-2008 Technical Specifications for Low Temperature Test Chambers
1. Over-temperature alarm
2. Overcurrent and overload protection
3. Fast-acting fuse
4. 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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