质量流量计
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 compact transmitter Promass A 300 offers high flexibility in terms of operation and system integration: access from one side, remote display, improved connectivity options. Heartbeat Technology ensures measurement reliability and compliant verification.
Technical Data
CompareDensity/Concentration
| Measuring Principle | Coriolis |
| Product headline | Accurate single-tube flowmeter for lowest flow rates with a compact, easily accessible transmitter. 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. Compact dual-compartment housing with up to 3 I/Os. Backlit display with touch control and WLAN access. Remote display available. |
| 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; stainless steel for hygenic transmitter design |
| Degree of protection | Compact version: IP66/67, type 4X enclosure. External WLAN antenna: IP67 IP69 |
| Display/Operation | 4-line backlit display with touch control (operation from outside) Configuration via local display and operating tools possible Remote display available |
| Outputs | 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 |
| 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, UK Ex |
| 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 with a compact, easily accessible transmitter. 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. Compact dual-compartment housing with up to 3 I/Os. Backlit display with touch control and WLAN access. Remote display available. |
| 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; stainless steel for hygenic transmitter design |
| Degree of protection | Compact version: IP66/67, type 4X enclosure. External WLAN antenna: IP67 IP69 |
| Display/Operation | 4-line backlit display with touch control (operation from outside) Configuration via local display and operating tools possible Remote display available |
| Outputs | 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 |
| 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, UK Ex |
| 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 with a compact, easily accessible transmitter. 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. Compact dual-compartment housing with up to 3 I/Os. Backlit display with touch control and WLAN access. Remote display available. |
| 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; stainless steel for hygenic transmitter design |
| Degree of protection | Compact version: IP66/67, type 4X enclosure. External WLAN antenna: IP67 IP69 |
| Display/Operation | 4-line backlit display with touch control (operation from outside) Configuration via local display and operating tools possible Remote display available |
| Outputs | 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 |
| 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, UK Ex |
| 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 |
The Promass A is the ideal choice for continuous process control under demanding conditions. The single-tube flowmeter with its unique self-draining function measures very small liquid and gas flows with high precision and can also measure under high pressure. Combined with the compact Promass A 300 transmitter, it offers flexible operation and convenient system integration: wiring on the same side of the instrument, remote display and improved connection options. Heartbeat Technology ensures reliable measurement and verified compliance.
Advantages
Small installation space required: compact, lightweight sensor
Highest product quality: self-draining measuring tube design
Maximum process safety: resistant to corrosive ambient conditions and can measure in pipes that may become clogged internally
Complete access to process and diagnostic information: a wide range of user-configurable input/output combinations and fieldbuses
Reduced complexity and variability: user-configurable input/output functions
Self-verification: Heartbeat Technology
Application areas
Measuring principle unaffected by the physical properties of the fluid (e.g. viscosity or density)
Suitable for measuring very small flows in all industries
Instrument 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)
Compact dual-compartment housing with up to 3 inputs/outputs
Backlit display, touch control and WLAN access
Remote display unit available
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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。
