I. Requirements Analysis

In numerous fields such as industrial production, mining, construction, firefighting and rescue operations, and environmental monitoring, dust concentration serves as a critical indicator for assessing workplace safety. High dust concentrations not only endanger worker health but may also trigger severe accidents like explosions. Therefore, a device capable of accurately, rapidly, and safely measuring dust concentration is particularly vital. Especially in flammable and explosive environments, the demand for explosion-proof digital dust monitors is increasingly urgent. This product is specifically designed for such high-risk environments, aiming to provide a reliable dust concentration monitoring solution to ensure personnel safety and uninterrupted production.

II. Product Features

1. Explosion-proof design: Utilizes Ex ib I explosion-proof type to ensure safe operation in environments with flammable or explosive gases or dust, effectively preventing explosion risks caused by electrical sparks or high temperatures.

2. High-Precision Measurement: The concentration measurement range spans (0.5–1000) mg/m³, meeting diverse industrial measurement requirements. Measurement error is ≤10%, ensuring accurate and reliable data.

3. Stable and Reliable: The sampling flow remains stable with an error rate ≤2.5% and a relative stability error of ±2.5%, ensuring consistent measurement results even in complex and dynamic environments.

4. Intuitive Display: Equipped with a Chinese character LCD screen that directly displays dust concentration values and related information, offering simple operation and easy readability.

5. Extended Battery Life: Equipped with a built-in 2×ICP7S 7000mAh battery pack, supporting over 10 hours of continuous operation to meet extended monitoring requirements.

6. Portable and lightweight: Compact dimensions (240×170×12mm) and weighing only 1.5kg, it is easy to carry to various monitoring points, enhancing work efficiency.

7. Complete accessories: Includes a tripod for stable placement during measurements; comes with a charger to ensure the device is always ready for use.

III. Application Scenarios

1. Dust concentration monitoring in flammable and explosive work areas such as coal mines and metal mines.

2. Dust emission control in industries such as chemical, pharmaceutical, and food processing.

3. Environmental monitoring in dust-polluted environments such as construction sites and tunnel construction.

4. At fire and rescue scenes, rapidly assess environmental safety and direct rescue operations.

5. Long-term monitoring and control of dust concentrations in the atmosphere by environmental protection authorities.

IV. Technical Specifications

Serial Number	Project Name	Technical Specifications
1	Concentration measurement range	(0.5～1000)mg/m³
2	Sampling flow rate	2L/min
3	Sampling Flow Error	≤2.5%
4	Relative Stability Error	±2.5%
5	Measurement error	≤10%
6	Display Mode	Chinese Character LCD
7	Battery	Battery Pack 2×ICP7S 7000mAh
8	Continuous operating time	Ten o'clock
9	Explosion-proof type	ExibI
10	External Dimensions	240×170×12mm
11	Weight	1.5kg
12	Supporting equipment	Tripod, charger