： Implementation standards :
《爆炸性环境第18部分：本质安全电气系统》 GB / T 3836.18-2017 "Explosive Environment Part 18: Intrinsically Safe Electrical System"
《粉尘采样器》 GB / T20964-2007 "Dust Sampler"
《粉尘采样器企业标准》 Q / HHD 0105-2010 "Dust Sampler Enterprise Standard"
： Scope of application :
This instrument is an ideal instrument for air detection and sampling in hazardous, toxic and explosive hazardous gas working places, especially for health and epidemic prevention systems at all levels, disease prevention and control centers, schools, scientific research institutions and industrial and mining enterprises. Gas and dust sampling.
： Instrument composition :
The sampler consists of an imported vacuum pump, a microcomputer controller, a multifunctional liquid crystal display and a charging voltage protection circuit, a lithium battery pack and a digital flow meter. The shell of the sampler is made of high-quality ABS plastic material, which is flame-retardant, moisture-proof and anti-static.
： Main features :
， 采样器工作过程全由微电脑控制，工作可靠、操作方便、智能化程度高； 1. The working process of the sampler is controlled by microcomputer, which is reliable, easy to operate and highly intelligent;
， 采样器采用数字式流量计，可以实时测量流量，采用先进的脉宽调速控制，流量可连续自动进行调节，动态特性好； 2. The sampler uses a digital flow meter, which can measure the flow in real time, and adopts advanced pulse width speed control. The flow can be continuously and automatically adjusted with good dynamic characteristics.
， 采样器采用进口真空薄膜泵，体积小、长时间运行发热低、耗电省、真空度高、噪音小、寿命长、工作可靠； 3 , the sampler adopts imported vacuum film pump, small size, low heat for long-term operation, low power consumption, high vacuum, low noise, long life and reliable work;
， 机内使用矿用锂电池组，容量大（4000mAH），无电池记忆效应，寿命长，使用专用充电器，充电效果好； 4 , the use of mining lithium battery pack inside the machine, large capacity (4000mAH), no battery memory effect, long life, using a dedicated charger, good charging effect;
， 采样器矿用锂电池组中，专门设计了短路限流保护装置，保证采样器工作在本质安全电流范围内，从而提高采样器的防爆性能； 5. In the sampler lithium battery pack, a short-circuit current limiting protection device is specially designed to ensure that the sampler works within the intrinsically safe current range, thereby improving the explosion-proof performance of the sampler;
， 段码式液晶中文显示，直观方便，零功耗； 6 , segment code LCD Chinese display, intuitive and convenient, zero power consumption;
， 蓝色背光，可适用各种光照条件下的显示； 7 , blue backlight, suitable for display under various lighting conditions;
， 具有煤安防爆认证。 8 , with coal safety explosion-proof certification.
The main parameters: