质量流量计 8A5C
The compact Promass A is ideal for continuous process control in very demanding applications. Its unique self-drainable single-tube system enables accurate measurement of liquids and gases at lowest flow rates and high pressure. With its innovative remote transmitter Promass A 500 maximizes installation flexibility and operational safety in demanding environments. Heartbeat Technology ensures measurement reliability and compliant verification.
The compact Promass A is the ideal choice for continuous process control under demanding conditions. The single-tube flowmeter with a unique self-draining function can measure extremely small flows of liquids and gases with high accuracy, and can also measure under high pressure. Combined with the innovative remote transmitter Promass A 500, it offers maximum installation flexibility and the highest operational safety under difficult conditions. Heartbeat Technology ensures compliance at all times and guarantees process safety.
Benefits
Small installation space required: compact, lightweight sensor
Highest product quality: self-draining measuring tube design
Highest process safety: withstands corrosive environmental conditions and can measure in pipes that may clog internally
Complete view of process and diagnostic information: various user-configurable input/output combinations and fieldbuses
Reduced complexity and variability: user-configurable input/output functions
Self-verification: uses Heartbeat Technology
Applications
The measuring principle is unaffected by the physical properties of the fluid (e.g. viscosity or density)
Suitable for extremely small flow measurement in all industries
Device features
Nominal diameter: DN 1...4 (1/24...1/8")
Maximum process pressure: 430.9 bar (6250 psi)
Maximum medium temperature: +205 °C (+401 °F)
Remote version with up to 4 inputs/outputs
Backlit display, touch key operation and WLAN access
Sensor and transmitter connected by standard cable
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Technical documentation
Technical data
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Source: Endress+Hauserpublic information from the website
Technical Data
CompareDensity/Concentration
| Measuring Principle | Coriolis |
| Product headline | Accurate single-tube flowmeter for lowest flow rates, as remote version with up to 4 I/Os. Suitable for applications with smallest flow quantities in all industries. |
| Sensor features | 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). |
| Transmitter features | 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. Remote version with up to 4 I/Os. Backlit display with touch control and WLAN access. Standard cable between sensor and transmitter. |
| Nominal diameter range | DN 1 to 4 (¹⁄₂₄ to ¹⁄₈") |
| Wetted materials | Measuring tube: stainless steel, 1.4435 (316/316L); Alloy C22 |
| Measured variables | Mass flow, density, temperature, volume flow, corrected volume flow, reference density |
| Max. measurement error | Mass flow (liquid): ±0.1 % Volume flow (liquid): ±0.1 % Mass flow (gas): ±0.35 % Density (liquid): ±0.0005 g/cm³ |
| Measuring range | 0 to 450 kg/h (0 to 16.54 lb/min) |
| Max. process pressure | 430.9 bar (6250 psi) |
| Medium temperature range | -50 to 205 °C (-58 to 401 °F) |
| Ambient temperature range | -40 to 60 °C (-40 to +140 °F) |
| Sensor housing material | Stainless steel, 1.4404 (316L) |
| Transmitter housing material | AlSi10Mg, coated; 1.4409 (CF3M) similar to 316L; Polycarbonat |
| Degree of protection | Sensor remote version (standard): IP66/67, type 4X enclosure Sensor remote version (option): IP69. Transmitter remote version: IP66/67, Type 4X enclosure |
| Display/Operation | 4-line backlit display with touch control (operation from outside) Configuration via local display and operating tools possible |
| Outputs | 4 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 |
| Inputs | Status input 4-20 mA input |
| Digital communication | HART, PROFIBUS DP, PROFIBUS PA, FOUNDATION Fieldbus, Modbus RS485, MODBUS TCP over Ethernet-APL, PROFINET, PROFINET over Ethernet-APL, Ethernet/IP, OPC-UA |
| Power supply | DC 24 V AC 100 to 230 V AC 100 to 230 V / DC 24 V (non-hazardous area) |
| Hazardous area approvals | ATEX, IECEx, cCSAus, INMETRO, NEPSI |
| Product safety | CE, C-TICK |
| Functional safety | Functional safety according to IEC 61508, applicable in safety-relevant applications in accordance with IEC 61511 |
| Metrological approvals and certificates | 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) |
| Pressure approvals and certificates | PED, CRN |
| Material certificates | 3.1 material |
| Hygienic approvals and certificates | 3-A, cGMP |
Gas
| Measuring Principle | Coriolis |
| Product headline | Accurate single-tube flowmeter for lowest flow rates, as remote version with up to 4 I/Os. Suitable for applications with smallest flow quantities in all industries. |
| Sensor features | 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). |
| Transmitter features | 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. Remote version with up to 4 I/Os. Backlit display with touch control and WLAN access. Standard cable between sensor and transmitter. |
| Nominal diameter range | DN 1 to 4 (¹⁄₂₄ to ¹⁄₈") |
| Wetted materials | Measuring tube: stainless steel, 1.4435 (316/316L); Alloy C22 |
| Measured variables | Mass flow, density, temperature, volume flow, corrected volume flow, reference density |
| Max. measurement error | Mass flow (liquid): ±0.1 % Volume flow (liquid): ±0.1 % Mass flow (gas): ±0.35 % Density (liquid): ±0.0005 g/cm³ |
| Measuring range | 0 to 450 kg/h (0 to 16.54 lb/min) |
| Max. process pressure | 430.9 bar (6250 psi) |
| Medium temperature range | -50 to 205 °C (-58 to 401 °F) |
| Ambient temperature range | -40 to 60 °C (-40 to +140 °F) |
| Sensor housing material | Stainless steel, 1.4404 (316L) |
| Transmitter housing material | AlSi10Mg, coated; 1.4409 (CF3M) similar to 316L; Polycarbonat |
| Degree of protection | Sensor remote version (standard): IP66/67, type 4X enclosure Sensor remote version (option): IP69. Transmitter remote version: IP66/67, Type 4X enclosure |
| Display/Operation | 4-line backlit display with touch control (operation from outside) Configuration via local display and operating tools possible |
| Outputs | 4 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 |
| Inputs | Status input 4-20 mA input |
| Digital communication | HART, PROFIBUS DP, PROFIBUS PA, FOUNDATION Fieldbus, Modbus RS485, MODBUS TCP over Ethernet-APL, PROFINET, PROFINET over Ethernet-APL, Ethernet/IP, OPC-UA |
| Power supply | DC 24 V AC 100 to 230 V AC 100 to 230 V / DC 24 V (non-hazardous area) |
| Hazardous area approvals | ATEX, IECEx, cCSAus, INMETRO, NEPSI |
| Product safety | CE, C-TICK |
| Functional safety | Functional safety according to IEC 61508, applicable in safety-relevant applications in accordance with IEC 61511 |
| Metrological approvals and certificates | 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) |
| Pressure approvals and certificates | CRN |
| Material certificates | 3.1 material |
| Hygienic approvals and certificates | 3-A, cGMP |
Liquids
| Measuring Principle | Coriolis |
| Product headline | Accurate single-tube flowmeter for lowest flow rates, as remote version with up to 4 I/Os. Suitable for applications with smallest flow quantities in all industries. |
| Sensor features | 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). |
| Transmitter features | 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. Remote version with up to 4 I/Os. Backlit display with touch control and WLAN access. Standard cable between sensor and transmitter. |
| Nominal diameter range | DN 1 to 4 (¹⁄₂₄ to ¹⁄₈") |
| Wetted materials | Measuring tube: stainless steel, 1.4435 (316/316L); Alloy C22 |
| Measured variables | Mass flow, density, temperature, volume flow, corrected volume flow, reference density |
| Max. measurement error | Mass flow (liquid): ±0.1 % Volume flow (liquid): ±0.1 % Mass flow (gas): ±0.35 % Density (liquid): ±0.0005 g/cm³ |
| Measuring range | 0 to 450 kg/h (0 to 16.54 lb/min) |
| Max. process pressure | 430.9 bar (6250 psi) |
| Medium temperature range | -50 to 205 °C (-58 to 401 °F) |
| Ambient temperature range | -40 to 60 °C (-40 to +140 °F) |
| Sensor housing material | Stainless steel, 1.4404 (316L) |
| Transmitter housing material | AlSi10Mg, coated; 1.4409 (CF3M) similar to 316L; Polycarbonat |
| Degree of protection | Sensor remote version (standard): IP66/67, type 4X enclosure Sensor remote version (option): IP69. Transmitter remote version: IP66/67, Type 4X enclosure |
| Display/Operation | 4-line backlit display with touch control (operation from outside) Configuration via local display and operating tools possible |
| Outputs | 4 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 |
| Inputs | Status input 4-20 mA input |
| Digital communication | HART, PROFIBUS DP, PROFIBUS PA, FOUNDATION Fieldbus, Modbus RS485, MODBUS TCP over Ethernet-APL, PROFINET, PROFINET over Ethernet-APL, Ethernet/IP, OPC-UA |
| Power supply | DC 24 V AC 100 to 230 V AC 100 to 230 V / DC 24 V (non-hazardous area) |
| Hazardous area approvals | ATEX, IECEx, cCSAus, INMETRO, NEPSI |
| Product safety | CE, C-TICK |
| Functional safety | Functional safety according to IEC 61508, applicable in safety-relevant applications in accordance with IEC 61511 |
| Metrological approvals and certificates | 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) |
| Pressure approvals and certificates | CRN |
| Material certificates | 3.1 material |
| Hygienic approvals and certificates | 3-A, cGMP |
Case Studies
市政污水处理
市政污水处理污水处理厂 · 质量流量计应用案例
项目背景
市政污水处理客户在污水处理厂环节，长期面临「出水水质监测精度不足、仪表易受污染导致数据漂移，影响达标排放」的困扰，对质量流量计的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的质量流量计，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应市政污水处理复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
食品饮料
食品饮料食品生产线 · 质量流量计应用案例
项目背景
食品饮料客户在食品生产线环节，长期面临「卫生级测量要求高，在线仪表需耐 CIP/SIP 清洗且精度稳定」的困扰，对质量流量计的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的质量流量计，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应食品饮料复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
化工制药
化工制药反应釜与储罐 · 质量流量计应用案例
项目背景
化工制药客户在反应釜与储罐环节，长期面临「介质腐蚀性强、工况复杂，仪表需耐腐蚀且防爆」的困扰，对质量流量计的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的质量流量计，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应化工制药复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
电力能源
电力能源电厂锅炉与汽机 · 质量流量计应用案例
项目背景
电力能源客户在电厂锅炉与汽机环节，长期面临「高温高压工况下测量不稳定，维护停机成本高」的困扰，对质量流量计的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的质量流量计，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应电力能源复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
