3151压力变送器防爆认证_智能变送器仪表防爆资质

西安华恒仪表自动化仪表生产厂家，作为西部主要的工业自动化过程控制仪表的制造商，拥有核心的自主传感器和智能电路板两项自主研发生产技术，不仅核心所有产品的核心部件技术完全自主-自控，华恒仪表自动化仪表生产的压力变送器，液位变送器，密度计，热电偶，热电阻，差压变送器，精度也在不断的提高，自主设计生产的金属电容式传感器和硅原理传感器，精度均由0.2级提高到0.1级，作为压力，液位，密度，测量在西部主要的供应生产商，微新疆，青海，甘肃，宁夏，等地区，众多项目提供独立设计,提供产品高效优质,性能稳定,测量精度高,价格适中的巨大优势自动化过程仪表，

本安与隔爆的区别
Difference between intrinsic safety and flameproof
本安与隔爆型控制柜通常都安装在安全区。本质安全型防爆技术通常采用PLC控制系统，柜内配备安全栅，将危险区返回的信号线经过安全栅处理后再接入PLC输入/输出模块。目前国内通常对PLC输入信号采用本安型防爆技术，可将危险区的输入电流限制在2mA以下，因为电流很小，从本质上讲是安全的。

Intrinsically safe and flameproof control cabinets are usually installed in safe areas. The intrinsically safe explosion-proof technology usually adopts PLC control system. The cabinet is equipped with safety barrier. The signal line returned from the dangerous area is processed by the safety barrier and then connected to the PLC input / output module. At present, intrinsically safe explosion-proof technology is usually used for PLC input signal in China, which can limit the input current in dangerous area to less than 2mA, because the current is very small, which is essentially safe. =
而PLC输出信号因为价格和其它因素，通常采用隔爆型防爆技术，输出信号线通常采用铠装电缆，穿入水煤气管，接入隔爆型防爆电器，例如防爆电机等，安装中要求从控制柜到最终设备之间都要进行密封处理，将电缆与危险区进行隔离。
Because of the price and other factors, the PLC output signal usually adopts the flameproof explosion-proof technology. The output signal line usually adopts armored cable, which is penetrated into the water gas pipe and connected to the explosion-proof electrical apparatus, such as explosion-proof motor. During installation, sealing treatment is required between the control cabinet and the final equipment to isolate the cable from the dangerous area.

隔爆型与本安型是两种不同的防爆电器，前者内部可能有燃爆源（如灯泡）但采取隔爆措施达到安全目的，后者不会达到爆燃能量（电压不高于 12 V，电流不大于 100mA，比如热电阻，属于本质安全型）。虽然如此，防爆电器通常在安全场合和非安全场合分界处都安装有安全栅。压力变送器基于不同工作原理也可以有以上两种区别。 防爆的等级根据使用场合选择。
Flameproof type and intrinsically safe type are two kinds of different explosion-proof electrical appliances. The former may have internal explosion-proof source (such as bulb), but the latter will not achieve deflagration energy (voltage not higher than 12 V, current not greater than 100 Ma, such as thermal resistance, belonging to intrinsically safe type). However, the explosion-proof electrical appliances are usually installed with safety barriers at the boundary between safety and non safety occasions. Pressure transmitter can also have the above two differences based on different working principles. The explosion-proof grade is selected according to the application situation.

　
华恒仪表的技术工作者认为.华恒企业借专业技术优势，可靠稳定的产品质量，坚持zun大限度的满足用户的需求是企业发展的动力源泉，以优质专业的服务为我国电力、石油、化工、冶金、水泥、矿业、市政、造纸等行业提供了高性能价格比的工业自动化仪表产品。
作为国内优秀的是知名的密度仪表制造商，公司的主要产品有3151差压变送器、液位(界位)仪表、流量计、温度传感器和多参量变送器，产品计量资质，防爆资质齐全，整个生产系统通过ISO9000质量认证体系认证。研发的智能磁致伸缩液位变送器，双隔离静压式水准仪，风荷载变送器等产品获得多项发明，得到市场的一致好评。