2025/11/27
With a deep commitment to the global market, Shanghai Dengsheng Instrument has earned international acclaim for its quality.










1. The product meets IIB explosion-proof standards and can be used in hazardous locations with explosive gas mixtures of temperature groups T1~T4. The explosion-proof rating reaches IIBT4. The product has been certified by the National Electrical Safety and Quality Inspection and Testing Center and awarded a national explosion-proof certificate;
2. The electrical control system adopts a composite explosion-proof technology combining flameproof and encapsulated types. The operating switch is a passive switch, which does not generate any mechanical sparks during operation, ensuring safe and reliable use. A safety barrier is externally installed for explosion-proof isolation of the sensor;
3. The explosion-proof digital temperature controller has a menu-driven operation interface, a 5.7-inch LCD screen, and a standard automatic screen lock function to prevent accidental operation; one screen displays information such as set temperature, operating temperature, constant temperature time, and heating status. It is simple and easy to use. The microcomputer PID control system provides precise temperature control with minimal fluctuations;
4. The intelligent microcomputer temperature and humidity control system has PID logic calculation function, which can automatically correct temperature and humidity deviations based on the calculation results to achieve precise control;
5. It has a scheduled start function, and multiple timing modes are available, including forward timing, countdown timing, constant temperature timing, and start timing. The timing unit can be selected as minutes or hours;
6. The core components (refrigeration cycle), including the compressor and circulating fan, are all imported brands. The compressor uses encapsulated explosion-proof technology, ensuring safety and reliability. The refrigerant is a fluorine-free environmentally friendly refrigerant, creating a healthy environment for your laboratory;
7. The air circulation system inside the chamber is forced by a high-temperature resistant, low-noise explosion-proof axial fan. The refrigeration system uses a classic arrangement and combination, and its stability has been tested by the market for many years, ensuring safety and reliability;
8. It adopts the internationally popular internal humidification method, which provides better temperature and humidity stability compared to external humidification. International renowned brand explosion-proof humidity sensor, with humidity accuracy reaching internationally advanced levels; real-time water tank level monitoring function, enabling automatic water replenishment;
9. Automatic parameter saving in case of emergencies, with power-on recovery function, and also features sensor self-diagnosis, over-temperature and fault alarm functions;
10. The inner liner is made of 304 mirror-finish stainless steel with rounded corners, and the outer casing is made of high-quality cold-rolled steel plate with electrostatic coating, ensuring a durable and long-lasting anti-static finish;
11. Magnetic sealing door, easy to open and with good sealing performance; adjustable shelves for more efficient space utilization;
I. After-Sales Service
1. From the date of delivery, the supplier provides a one-year warranty for the entire testing machine and lifetime maintenance;
2. During the warranty period, if there are any equipment quality problems, the supplier is responsible for free repair and replacement of parts, and will promptly provide easily damaged and consumable parts without any cost to the customer;
3. If any malfunction occurs during the use of the equipment, our company promises a 2-hour response, a solution within 4 hours, and depending on the situation,
4. On-site service within 24-48 hours;
5. Lifetime maintenance of the entire machine; if parts need to be replaced, our company will only charge the market cost price;
II. Precautions for Use
1. It is strictly forbidden to put flammable, volatile or corrosive substances (such as organic solvents, acidic substances) into the chamber to prevent explosion or equipment damage;
2. The machine must be kept level and at least 60 cm away from surrounding objects to facilitate maintenance and heat dissipation;
3. Use a dedicated power socket; the equipment operating voltage is AC 220V/380V/50Hz. Before use, ensure that the power supply voltage matches the specified voltage; ensure the power cord is undamaged and properly grounded to avoid the risk of electric leakage;
4. During high-temperature operation, or if the internal temperature has not cooled down to a safe range, do not open the door to retrieve baked items to avoid injury from hot gases or direct burns from the hot items and the high temperature inside the chamber. If high-temperature operation is necessary, wear protective gear to prevent burns;
5. Keep the unit level to avoid vibration or tilting that may affect operational stability;
6. Arrange items to be cultured or stored evenly to ensure proper airflow and uniform temperature distribution;
7. Regularly check the circuit system, temperature sensor, and heating element to ensure reliable connections;
8. If the equipment is not used for an extended period, unplug the power cord and operate it for 2-3 days every quarter to remove moisture;
9. If any unusual odor, smoke, or temperature control issues occur during operation, immediately disconnect the power and contact a professional for repair;
10. Do not disassemble the side door or modify the wiring without authorization. For major malfunctions, contact the manufacturer for assistance;
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Model |
HLTS-9810EX |
HLTS-9815EX |
HLTS-9825EX |
HLTS-9830EX |
HLTS-9850EX |
|
Explosion-proof Rating |
IIBT4 |
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Temperature Range |
With humidification: 5~65℃; Without humidification: 0~65℃ |
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Temperature Resolution |
0.1℃ |
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Temperature Fluctuation |
High temperature range: ±0.5℃; Low temperature range: ±1℃ |
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Temperature Uniformity |
±1.5℃ |
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Humidity Range |
30~95%RH |
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Humidity Deviation |
±3%RH |
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Power Supply Voltage |
AC220V/10A |
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Timer Range |
SC type: 1~9999min HC type: 9999min x 30 sets x 99 segments |
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Operation Mode |
Fixed-value timed operation / Program operation |
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Interior Dimensions (mm) |
450x380x590 |
480x400x780 |
580x500x850 |
580x540x950 |
700X700X1020 |
|
Exterior Dimensions (mm) |
580x610x1160 |
605x625x1375 |
710x725x1540 |
710x765x1640 |
825x925x1780 |
|
Volume |
100L |
150L |
246L |
297L |
505L |
|
Gross weight/Net weight KG |
113/98 |
130/115 |
180/155 |
190/165 |
286/255 |
|
Standard Shelves |
2 |
3 |
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Rated Power |
1KW |
1.2KW |
1.8KW |
2KW |
2.4KW |
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.
As Explosion-proof Constant Temperature and Humidity Chamber Manufacturers and Explosion-proof Constant Temperature and Humidity Chamber Factory in China, 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, supply Explosion-proof Constant Temperature and Humidity Chamber Wholesale, 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.
We welcome inquiries and cooperation from both new and existing customers, providing professional equipment solutions.
2025/11/27
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