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 TechnolThe 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 compliance and process safety at all times.ogy ensures compliance and process safety at all times.
● 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
● 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
● Measuring principle operates independently of physical fluid properties such as viscosity or density
● Suitable for applications with smallest flow quantities in all industries.
Device properties
● 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)
● Remote version with up to 4 I/Os
● Backlit display with touch control and WLAN access
● Standard cable between sensor and transmitter
Product headline
Single-tube flowmeter for accurate measurement of 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).
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.
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/cm³Measuring 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 outputInputs
Status input
4-20 mA inputDigital communication
HART, PROFIBUS DP, PROFIBUS PA, FOUNDATION Fieldbus, Modbus RS485, Profinet, 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 traceable verification according to ISO 9001:2008 – Section 7.6 a (TÜV attestation)
Pressure approvals and certificates
CRN
Material certificates
3.1 material
Hygienic approvals and certificates
3-A, cGMP
Datasheet: Proline Promass A 500 Technical Information
