Specs at a glance
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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)
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Medium temperature range
-50 to 205 °C (-58 to 401 °F)
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Max. process pressure
430.9 bar (6250 psi)
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Wetted materials
Measuring tube: stainless steel, 1.4435 (316/316L); Alloy C22
Field of application
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 enables measurement reliability and compliant verification.
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Measuring principle operates independently of physical fluid properties such as viscosity or density
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Suitable for applications with smallest flow quantities in all industries
Device properties
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Nominal diameter: DN 1 to 4 (¹⁄₂₄ to ¹⁄₈”)
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Process pressure up to 430.9 bar (6250 psi)
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Medium temperature up to +205 °C (+401 °F)
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Compact dual-compartment housing with up to 3 I/Os
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Backlit display with touch control and WLAN access
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Remote display available
Benefits
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Space-saving installation – compact, lightweight sensor
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Highest product quality – self-drainable measuring tube in all line sizes
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Optimum process safety – resistant to corrosive ambient conditions and internal clogging
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Full access to process and diagnostic information – numerous, freely combinable I/Os and Ethernet
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Reduced complexity and variety – freely configurable I/O functionality
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Integrated verification – Heartbeat Technology