The Proline Promass X is the high-capacity Coriolis meter of the Smith Meter / TechnipFMC line. Its four-tube measuring system covers nominal sizes of 12" to 16" with low pressure drop and premium accuracy, for high-volume custody transfer in crude oil and refined products production and transportation. It is paired with the Proline 300 (compact) or 500 (remote) transmitter.
Key specifications
- Accuracy: Liquid mass/volume ±0.05% of rate PremiumCal, ±0.10% standard; gas mass ±0.35%
- Repeatability: Liquid ±0.05% (±0.025% with PremiumCal); gas ±0.25%; density ±0.00025 g/cc
- Density: ±0.0005 g/cc at reference conditions
- Sizes / max flow: 12", 14" and 16": 0 to 4,520 sh. t/h (32,235 bph; 773,650 BPD; 5,125 m3/h) at S.G. 0.8
- Pressure: ASME Class 150/300/600 to 275/720/1,440 psig; EN 1092-1 and JIS B2220; secondary containment 87 psi
- Temperature: Fluid to 338/356 °F; ambient -40 to 131/140 °F
- Materials: 316/316L measuring tubes, manifold and F316/F316L process connections; 316L housing
- I/O and communications: 4-20 mA HART, Modbus RS485 (EtherNet/IP on 100); configurable slots for current in/out, pulse/frequency/switch, phase-shifted pulse, relay and status input; web server via RJ45 or optional WLAN
- Diagnostics: Heartbeat Technology self-monitoring and in-situ verification (ISO 9001 report), HistoROM data logging, concentration and special density packages; same Modbus registers as the 80/83/84 generation
- Transmitters: 300 (compact, custody transfer approvals, 2 extra configurable I/O) or 500 (remote mount, 3 configurable I/O)
How to read the model code
Base code example: O8X3B3F = 14" X sensor with 300 transmitter (bulletin example options CD-D-MA-D-D-F-A-D-SA-AAS-A-A2-FA).
- O8 + X (Sensor): X = Promass X sensor
- Transmitter digit: 3 = 300 (compact); 5 = 500 (remote)
- B + size (Nominal pipe size): B3F = 14" per the bulletin example; FMS confirms the 12" and 16" size codes (the bulletin's size table repeats the 3"-6" codes)
- Order positions 010-490: 010 area classification; 015 power supply; 020/021/022 output-input 1/2/3; 030 display/operation; 040 housing; 050 electrical connection; 060 tube material/wetted surface; 070 process connection; 080 flow calibration; 480 device model; 490 customer
- Additional options (+): 500 display language; 520 sensor option; 540 application package (Heartbeat, concentration, HistoROM); 570 service; 580 test/certificate; 590 additional approval; 620 accessory enclosed; 850 firmware version; 895 marking
Codes can be configured from the printed price list or the E+H online configurator once the base code is entered.
Pricing and lead time are quoted per configuration. Send the model code (or your application details), product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Smith Meter bulletin SS0M044; confirm current data with the factory before ordering.
Smith Meter (formerly FMC Technologies / TechnipFMC Measurement Solutions), now manufactured by Guidant. Flow Measurement Services supplies and services Smith Meter equipment.

