应用领域
一体式Promass A是在严苛工况下进行连续过程控制的理想选择。单测量管流量计带自排空功能，能够高精度测量极小流量的液体和气体，也可以在高压条件下测量。采用经济的两线制回路供电技术和本安设计（Ex ia），即使在危险区中使用Promass A 200也具有高操作安全性。Heartbeat Technology心跳技术确保过程安全。
测量原理不受流体物理特性的影响（例如粘度或密度）
适用于化工行业应用中的极小流量测量
仪表特点
公称口径：DN 1...4 (1/24...1/8")
最大过程压力：430.9 bar (6250 psi)
最高介质温度：+205 °C (+401 °F)
两线制回路供电技术
坚固耐用的双腔室外壳
工厂安全性：通过多项国际认证（SIL，防爆）
优势
所需安装空间小：紧凑型轻量化传感器
高产品质量：自排空的测量管设计
高过程安全性：耐受腐蚀性环境条件，可以在内部可能发生堵塞的管道中测量
接线方便：仪表配备独立接线腔
操作安全：配备带触摸键操作的背光显示屏，操作时无需打开仪表
带自校验功能：采用Heartbeat Technology心跳技术
产品规格参数
测量原理
科里奥利质量流量
产品标题
Genuine loop-powered flowmeter for accurate measurement of lowest flow rates.
Suitable for applications with smallest flow quantities in the chemical industry.
传感器特点
Space-saving installation – compact, lightweight sensor. Highest product quality – self-drainable measuring tube design in all line sizes. Optimum process safety – resistant to corrosive ambient conditions and internal clogging.
Nominal diameter: DN 1 to 4 (¹⁄₂₄ to ¹⁄₈"). Process pressure up to 430.9 bar (6250 psi). Medium temperature up to +205 °C (+401 °F).
变送器特点
Convenient device wiring – separate connection compartment. Safe operation – no need to open the device due to display with touch control, background lighting. Integrated verification – Heartbeat Technology.
Loop-powered technology. Robust dual-compartment housing. Plant safety: worldwide approvals (SIL, Haz. area).
公称口径范围
DN 1 to 4 (¹⁄₂₄ to ¹⁄₈")
接液部件材质
Measuring tube: stainless steel, 1.4435 (316/316L); Alloy C22
测量变量
Mass flow, density, temperature, volume flow, corrected volume flow, reference density
最大测量误差
Mass flow (liquid): ±0.1 %
Volume flow (liquid): ±0.1 %
Mass flow (gas): ±0.35 % Density (liquid): ±0.0005 g/cm³
测量范围
0 to 450 kg/h (0 to 16.54 lb/min)
最大过程压力
430.9 bar (6250 psi)
介质温度范围
-50 to 205 °C (-58 to 401 °F)
环境温度范围
-40 to 60 °C (-40 to +140 °F)
传感器外壳材质
Stainless steel, 1.4404 (316L)
变送器外壳材质
Stainless steel, CF-3M (316L, 1.4404)
AlSi10MG, coated
防护等级
IP66/67, Type 4X enclosure
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
4‐20 mA HART (passive)
4‐20 mA (passive)
Pulse/frequency/switch output (passive)
输入
None
数字通信
HART, PROFIBUS PA, FOUNDATION Fieldbus
电源
DC 18 to 35 V (4‐20 mA HART with/without
pulse/frequency/switch)
DC 18 to 30 V (20 mA HART, 4‐20 mA)
DC 9 to 32 V (PROFIBUS PA)
防爆认证
ATEX, IECEx, cCSAus, INMETRO, NEPSI, UK Ex
产品安全性
CE, C-TICK
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 measurement traceability according to ISO 9001:2015 – Section 7.1.5.2 a (TÜV SÜD attestation)
压力认证和证书
CRN
材料证书
3.1 material
卫生型认证和证书
3-A, cGMP