Environmental quality monitoring equipment

Production workshop online dust concentration detector XDB-ZFC01

First, online dust concentration detector:

XDB-ZFC01 Factory dust concentration online detection and alarm instrument is a equipment developed and produced by Shenzhen Boyunchuang Environmental Technology Co., Ltd. for the detection of various dust concentrations in the production workshop, mainly used for online measurement of dust concentration in the workplace and exceeded warning. To prevent the high concentration of dust harmful to the health of the working body or due to the high concentration of explosion accidents, endangering life safety. Widely used in flour factory, cement factory, feed factory, polishing factory, furniture factory, wood factory, plastic factory and other easy to produce dust operations.

Second, dust knowledge popularization:

1) Why does dust explode?

The combined surface area of countless tiny particles is very large. After a piece of things become countless dust, the surface area is greatly increased, and the opportunity for surface molecules to come into contact with the air is increased, making the chemical properties of surface molecules particularly active. They need very little heat, very little air, and can be fully burned. Countless dust burns violently, causing the surrounding air to expand violently, like an explosive, causing an explosion.

2) What are the conditions for dust explosion?

There are three conditions for dust explosion: first, the concentration of dry fine dust and floating dust per cubic meter reaches 30-40 grams of pulverized coal, 40 grams of aluminum powder, 100 grams of iron powder, 12.6-25 grams of wood powder, and 9.7 grams of wheat flour; The second is oxygen, the oxygen content of the air reaches 21%; And the third is heat, 40 millijoules of fire.

3) What are the common combustible dusts?

The most common combustible dust is coal dust, corn dust, potato dust, aluminum dust, zinc dust, magnesium dust, sulfur dust and so on. For example, if aluminum is commonly used in electronic products, the dust generated in the production process is a typical combustible dust

4) Can the dust explosion tragedy be avoided?

In most enterprises in China, workers have little knowledge about the hazards of dust explosions.

Three, online dust concentration detector features:

1, stable and reliable communication, wide range of power supply DC12-24V;

2, perfect anti-connection reverse, over-voltage, over-current, inter-line protection ability;

3, careful circuit hardware and software design, low failure rate, short stability time;

4, the original imported laser optical principle sensor and professional signal processing chip, to ensure the accuracy of sensor data;

5, the structure considers the aerodynamic principle, to achieve automatic real-time sampling, can be used for a long time;

6, with alarm, excessive warning.

Four, online dust concentration detector technical parameters:

Detect gas dust particles

Detection principle Principle of laser optical detection

Measuring range 0 ~ 30mg/m³

Resolution 0.001mg/m³

Precision ≤ ± 15%F.S

Preheating time 30S

Response time (T90) < 1 minute

Service life more than 3 years

The alarm value exceeds the standard by default 15mg/m&sup3; Alarm, return difference 1mg/m&sup3; (Alarm value can be adjusted)

Acousto-optic alarm explosion-proof alarm light, alarm sound 120dB, flashing frequency 150 times/min

Display mode comes with 4.3 inch touch LCD screen

Power supply voltage DC 12 ~ 24V (with power adapter 220V)

Signal output switching signal RS485modbus RTU

Working environment -10 ~ 50℃; 0 ~ 95%RH (no condensation)

Storage environment -30 ~ 60℃; 0 ~ 100%RH (no condensation)

Shell material Cast aluminum shell

Protection class IP65

Mounting method Wall-mounted mounting, hoop mounting (with 2 mounting brackets)

Weight/Size 2.5KG/ Detector: 304*184*78 (mm)