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Buyer planning tool
Collect the process, pipe, installation, signal, document, and commercial inputs below before comparing electromagnetic, clamp-on ultrasonic, or thermal mass flow meter quotations.
Ask shortlisted suppliers to identify their proposed model, open technical questions, document revision, exclusions, and commercial assumptions in writing. Confirm the quoted configuration against current controlled documents before ordering.
Define what is being purchased and how the measurement will be used.
Company, project, plant, and installation country
Contact name and role in technical or commercial approval
Permanent installation, retrofit, temporary survey, skid, or OEM integration
Quantity, required delivery date, quotation currency, and trade term
Record minimum, normal, and maximum conditions where they change.
Fluid name and phase: liquid, gas, steam, or slurry
Conductivity, solids, particle size, viscosity, and composition when known
Corrosive, abrasive, sanitary, or material-compatibility requirements
Minimum, normal, and maximum temperature, pressure, and flow rate
Installation details often decide whether a technology is suitable.
Nominal diameter, actual internal diameter, pipe material, wall thickness, and lining
Flange standard, pressure rating, and face type for an inline meter
Available upstream and downstream straight run, pipe orientation, and full-pipe condition
Grounding, access, maintenance space, and whether the pipe can be shut down or cut
Ambient temperature, weather, washdown, vibration, and hazardous-area classification
State the required result and how it must reach the plant system.
Preferred technology or permission for the supplier to recommend one
Accuracy, repeatability, turndown, flow direction, and empty-pipe requirements
Output and communications: 4-20 mA, pulse, relay, RS485, Modbus, or another interface
Supply voltage, local display, remote transmitter, enclosure, cable, and connector
PLC, SCADA, data logger, or energy-management system receiving the measurement
Ask each supplier to quote against the same evidence and acceptance package.
Current model datasheet, dimensional drawing, installation, wiring, and communication documents
Calibration certificate, method, inspection report, and material information required by the project
Declaration or hazardous-area documentation with the exact quoted model scope, when applicable
Sample, commissioning, site test, inspection, and final acceptance requirements
Required records, document language, revision control, and approval milestones
ElectromagneticStart here for a suitable conductive liquid and full-pipe installation. Confirm conductivity, lining, electrodes, grounding, and inline installation requirements.
Clamp-on ultrasonicConsider external installation when avoiding pipe cutting matters. Confirm pipe material, dimensions, lining, wall condition, fluid, and acoustic path.
Thermal massEvaluate for gas service after defining gas composition, pressure, temperature, range, installation, and calibration requirements.