Key Specifications
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Maximum measurement deviation
Liquid mass flow: ±0.1 %
Liquid volume flow: ±0.1 %
Gas mass flow: ±0.35 %
Liquid density: ±0.0005 g/cm³ -
Measurement range
0–450 kg/h (0–16.54 lb/min)
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Fluid temperature range
-50 to 205 °C (-58 to 401 °F)
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Maximum operating pressure
430.9 bar (6250 psi)
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Contact materials
Measuring tube: stainless steel 1.4435 (316/316L); Alloy C22
Application Areas
The Promass A excels in continuous process monitoring for challenging industrial environments. Its innovative self-draining single-tube design ensures precise measurement of liquids and gases at minimal flow rates under high pressure conditions. The compact Promass A 300 transmitter provides exceptional operational flexibility and system integration capabilities, featuring single-side access, remote display functionality, and enhanced connectivity. Heartbeat Technology guarantees measurement accuracy and compliance verification.
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Measurement technology unaffected by fluid characteristics like viscosity or density
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Designed for minimal flow applications across all industrial sectors
Product Features
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Nominal size: DN 1 to 4 (¹⁄₂₄ to ¹⁄₈”)
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Operating pressure up to 430.9 bar (6250 psi)
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Maximum fluid temperature: +205 °C (+401 °F)
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Compact two-chamber housing with up to 3 I/O channels
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Touch-controlled backlit display with WLAN capability
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Optional remote display
Advantages
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Compact, lightweight design for space-efficient installation
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Superior quality – self-draining measurement tube available in all pipe sizes
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Enhanced process reliability – resistant to corrosive environments and internal buildup
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Comprehensive process monitoring – multiple configurable I/Os and Ethernet connectivity
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Simplified operation – fully customizable I/O functionality
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Built-in verification – Heartbeat Technology
