The Proline Promass O brings premium Coriolis accuracy to the highest process pressures and harshest service. Measuring tubes of 25Cr super duplex steel give extreme strength and chemical resistance, so it suits onshore and offshore oil production with corrosive, high-sulfur crude. 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: 3": 6,615 lb/min (34,000 BPD); 4": 12,860 (66,100 BPD); 6": 29,400 lb/min (151,000 BPD) at S.G. 0.8
- Pressure: ASME Class 900 to 2,250 psig; Class 1500 to 3,750 psig; EN 1092-1 and JIS B2220 flanges; secondary containment 232 psi
- Temperature: Fluid to 338/401 °F; ambient -40 to 122/140 °F
- Materials: 25Cr super duplex tubes (1.4410 / UNS S32750) and process connections (F53); 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: O8O3B80 = 3" O sensor with 300 transmitter (bulletin example options CD-D-MA-D-D-F-A-D-SA-AAS-A-A2-FA).
- O8 + O (Sensor): O = Promass O sensor
- Transmitter digit: 3 = 300 (compact); 5 = 500 (remote)
- B + size (Nominal pipe size): B80 = 3"; B1H = 4"; B1F = 6"
- 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
The bulletin's worked example prints the base code as O8Q3B80; the sensor table gives O8O for the O sensor. FMS confirms the base code before ordering.
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 SS0M043; 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.

