XFM低成本铝或不锈钢数字热质量流量计设计特点支持多达23个工程单元(包括用户自定义)。存储多达10种气体的校准数据。o可编程累加器显示总气体量。高、低气体流量报警限制与预设的延迟间隔。两组用户可编程的带锁存选项的机电SPDT继电器。可选择0-5伏模拟或4-20mA输出。多达32种气体的内部转换因子。数字接口(RS-232 / RS-485, Profibus DP可用)。多达256个单元(RS-485选项)的多点传输能力。o可选Profibus DP接口,具有I&M功能。 oAutomatic sensor zero offset adjustment (via digital interface or local push button). oSelf-Diagnostic Tests. oLocal 2 x 16 characters LCD display* with adjustable back light (optional). XFM digital mass flow meter The flow rate can be displayed in 23 different volumetric flow or mass flow engineering units including user specific. Flow meters can be programmed remotely via RS-232/RS-485 or optional Profibus DP interface. XFM flow meters support various functions including: programmable flow totalizer, high and low flow alarm, automatic zero adjustment, 2 relay outputs, jumper selectable 0-5 Vdc or 4-20 mA analog outputs, status LED diagnostic, capable to store calibration for up to 10 different gases, internal or user-specific K-factors.