"Specs at a glance
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)
Medium temperature range
-50 to 205 °C (-58 to 401 °F)
Max. process pressure
430.9 bar (6250 psi)
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.
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)
Compact dual-compartment housing with up to 3 I/Os
Backlit display with touch control and WLAN access
Remote display available" "Benefits
Space-saving installation – compact, lightweight sensor
Highest product quality – self-drainable measuring tube 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 Ethernet
Reduced complexity and variety – freely configurable I/O
functionality
Integrated verification – Heartbeat Technology" "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"
