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Promass A具有自排空功能，即使在高压工况条件下也能进行极小流量液体和气体的高精度测量。能够在各种苛刻工况条件下进行连续过程控制。与一体式变送器配套使用，Promass A 300操作灵活，系统集成便捷：在仪表的同一侧接线、远程显示、改进的连接方式。Heartbeat Technology (心跳技术)确保始终合规，保证过程安全。
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*高过程安全性：自排空测量管设计
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较少过程测量点：多参数测量(流量、密度、温度)
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节省安装空间：无前/后直管段长度要求
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完整查看过程信息和诊断信息：提供多种用户自定义输入/输出组合方式和现场总线
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降低复杂性和多样性：用户自定义输入/输出功能
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自带验证功能：内置Heartbeat Technology (心跳技术)
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测量原理不受流体物理特性的影响(例如：粘度和密度)。
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用于连续过程控制中的极小流量液体和气体的高精度测量。
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标称口径：DN 1...4 (1/24...1/8")
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过程压力：max. 400 bar (5800 psi)
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介质温度：max. +205 °C (+401 °F)
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一体式双腔室外壳，*多带3路输入/输出
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背光显示、触摸键控制和WLAN访问
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提供分离型显示单元
特征和规格
测量原理 科氏力质量流量计 产品标题 The single‐ ube flowmeter for smallest flow quantities with an ultra‐compact transmitter. Measuring accurately smallest quantities of liquids and gases for continuous process control. 传感器特点 Highest process safety – self‐drainable measuring tube design. Fewer process measuring points – multivariable measurement (flow, density, temperature). Space‐saving installation – no in/outlet run needs. Nominal diameter: DN 1 to 4 (¹⁄ to ¹⁄"). Process pressure up to 400 bar (5800 psi). 变送器特点 Full access to process and diagnostic information – numerous, freely combinable I/Os and fieldbuses. Reduced complexity and variety – freely configurable I/O functionality. Integrated verification – Heartbeat Technology. Compact dual-compartment housing with up to 3 I/Os. Backlit display with touch control and WLAN access. 公称口径范围 DN 1 to 4 (¹⁄ to ¹⁄") 接液部件材质 Measuring tube: 1.4539 (904L); Alloy C22, 2.4602 (UNS N06022)
Connection: 1.4539 (904L); Alloy C22, 2.4602 (UNS N06022); 1.4404 (316/316L)测量变量 Mass flow, density, temperature, volume flow, corrected volume flow, reference density, concentration *大测量误差 Mass flow (liquid): ±0.1 %
Volume flow (liquid): ±0.1 %
Mass flow (gas): ±0.5 %
Density (liquid): ±0.0005 g/cm³测量范围 0 to 450 kg/h (0 to 16.5 lb/min) *大过程压力 PN 40, Class 300, 20K, 400 bar (5800 psi) 介质温度范围 –50 to +205 °C (–58 to +401 °F) 环境温度范围 Standard: –40 to +60 °C (–40 to +140 °F)
Option: –50 to +60 °C (–58 to +140 °F)传感器外壳材质 1.4301 (304), corrosion resistant 变送器外壳材质 AlSi10Mg, coated; 1.4409 (CF3M) similar to 316L; stainless steel for hygenic transmitter design 防护等级 IP66/67, type 4X enclosure
IP69显示/操作 4-line backlit display with touch control (operation from outside)
Configuration via local display and operating tools possible
Remote display available输出 3 outputs:
4-20 mA HART (active/passive)
4-20 mA WirelessHART
4-20 mA (active/passive)
Pulse/frequency/switch output (active/passive)
Double pulse output (active/passive)
Relay output输入 Status input
4-20 mA input数字式通信 HART, PROFIBUS DP, PROFIBUS PA, FOUNDATION Fieldbus, Modbus RS485, Profinet, Ethernet/IP, OPC-UA 电源 DC 24 V
AC 100 to 230 V
AC 100 to 230 V / DC 24 V (non-hazardous area)危险区认证 ATEX, IECEx, cCSAus, NEPSI, INMETRO, EAC 产品安全性 CE, C-tick, EAC marking 功能安全性 Functional safety according to IEC 61508, applicable in safety-relevant applications in accordance with IEC 61511 计量认证和证书 Calibration performed on accredited calibration facilities (acc. to ISO/IEC 17025)
Heartbeat Technology complies with the requirements for traceable verification according to ISO 9001:2008 – Section 7.6 a (TÜV attestation)压力认证和证书 CRN 船级证书 3.1 material 卫生型认证和证书 3-A, EHEDG
仪表特点
