一、进口气体质量流量计概述
质量流量计可以直接获得被测量介质的质量流量、密度、温度等参量,无需人工计算或估算;其内部无可动部件,因此对工况条件没有苛刻的要求,维护也比较简便;独特的模块化结构设计,使得安装更加简单;独有的流道专利技术使得相对同类产品压力损失小;专业的制造工艺技术,保证其测量准确度高,量程范围宽;温度和压力对于质量流量计用于测气时有影响,影响不大于±0.2%,因此质量流量计用于测气时精度在±0.5%。
Mass flow meters can directly obtain parameters such as mass flow rate, density, temperature of the measured medium, without the need for manual calculation or estimation; There are no movable components inside, so there are no strict requirements for working conditions and maintenance is relatively simple; Unique modular structural design makes installation simpler; The unique patented flow channel technology reduces pressure loss compared to similar products; Professional manufacturing technology ensures high measurement accuracy and wide range of measurement; Temperature and pressure have an impact on the use of mass flow meters for gas measurement, with an impact of no more than ± 0.2%. Therefore, the accuracy of mass flow meters for gas measurement is ± 0.5%.
二、进口气体质量流量计性能参数
| 质量流量测量准确度等级:0.5级 | 质量流量测量重复性:1/2(准确度) | |
| 密度测量范围:(0.2~3.0)g/cm³ | 密度测量准确度:±0.001g/cm³ | |
| 温度测量范围:-198℃~+450℃ | 温度测量准确度:±0.5℃ | |
| 公称压力:≤4MPa(高压可定制) | 公称通径:DN10~DN300 | |
| 测量介质:气体 | 接液部件材质:304、304L、316L、C22、钛、钽、锆 | |
| 环境温度:-30℃~+55℃ | 环境湿度:5%~95% | |
| 工作电压:DC24V或AC220V(智能电源,交直流通用) | 输出信号:频率(0~10)kHz、电流(4~20)mA | |
| 通讯协议:HART、MODBUS、FF、PROFIBUS-DP/PA | 测量管形式:U形管或微弯管 | |
| 防爆等级:Ex ib IIC T6 Gb | 防护等级:IP67 | |
| 量程比:15:1 | 制造标准:VTON |
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