FMT430 application guide for thermal gas-flow measurement and validation
FMT430 is ABB's SensyMaster thermal mass flowmeter for direct gas mass-flow measurement in industrial standard applications. The FMT430 family supports ApplicationSelector for up to two application configurations, with SmartSensor and VeriMass verification/diagnostic functions on supported versions. ABB's reference-condition air accuracy is range-dependent, so it should not be generalized to every process gas or installation.
Key technical data
| Technical item | Verified value / selection note |
|---|---|
| Product family | ABB SensyMaster FMT400 |
| Measurement principle | Thermal mass flow measurement of gases |
| Application capacity | ApplicationSelector supports up to two applications on FMT430 family |
| Air accuracy reference | ±1.2% of rate over 10–100% of range; ±0.12% FS over 1–10%, reference conditions |
| Mounting | Compact or remote, with or without local display options |
| Outputs | HART and modular I/O options depend on configuration |
Identification note: FMT430. The figures above are selection references; verify the actual label, duty rating, approvals, firmware and options for the exact unit before purchase or engineering release.
Application envelope
Consider FMT430 for gas flow in utility, process or emissions-related duties after the gas composition and operating pressure/temperature have been defined. Thermal mass measurement responds to gas properties, so FMT430 selection should specify the measured gas and any mixture assumptions. Verify whether the process needs one or two configured application sets and how those are selected in operation.
- Confirm the process or load duty.
- Match the exact code and interfaces.
- Verify protection, approvals and lifecycle status.
Model family references
The following model references belong to the same identifiable family as FMT430; they are configuration alternatives, not automatic substitutes. Compare each complete designation and application before selecting.
- FMT430-Y0.C1.B.4.D3.Y0.A1.Y0.Y. M5.NC1.R3.TC
- FMT430.A2.C2.A.2.D3.D1.Y0.G0.A-DRN.DSN.L2.M5.NC1.R4.T1...1
- FMT430.Y0.C1.A.2.G2.S1.Y0.G0.B
- FMT430.Y0.C2.A.2.D3.D1.Y0-G0.A----L2.M5.NC1.R3.TC
For the FMT430 record, retain the full type string and do not infer range, rating or compatibility from a shortened family code.
Order-code review
Check FMT430 meter body style, insertion or inline geometry, nominal pipe size, flow direction, insertion depth, pressure/temperature limits, gas calibration and output modules. Confirm whether the sensor and electronics are integral or remote, whether a display is needed and the available power supply. Use the exact configuration and factory calibration record for range and uncertainty.
Commissioning record
Mount FMT430 in the orientation and insertion location prescribed for the selected sensor. Keep the probe clear of obstructions and verify process isolation if a hot-tap fitting is used. Commission the gas application, zero and range, test HART/I/O mapping and review VeriMass diagnostics; compare readings with an independent reference before using them for process decisions.
For procurement, quote the complete designation FMT430 and state the required quantity, destination, duty and delivery window.
