The Proline Promass Q offers the highest flow and density performance in the Smith Meter / TechnipFMC Coriolis range and is built for custody transfer and difficult applications. Multi-frequency technology keeps measuring through entrained gas, accuracy is immune to density and viscosity, and it auto-compensates for low Reynolds number flow. 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 ±0.025% of rate; gas ±0.25%; density ±0.0001 g/cc
- Density: ±0.0002 g/cc base accuracy (20-60 °C, 0-2 g/cc)
- Sizes / max flow: 1": 736 lb/min (3,780 BPD); 2": 2,944 (15,120 BPD); 3": 7,360 (37,800 BPD); 4": 20,240 lb/min (103,940 BPD) at S.G. 0.8
- Pressure: ASME Class 150/300/600 to 285/740/1,480 psig (group 2.2 stainless flanges rated to Class 1.1); EN 1092-1; secondary containment 580 psi (1"-2") / 362 psi (3"-4")
- Temperature: -58 to 401 °F standard; low-temperature version -321 to 302 °F
- Materials: 316/316L tubes and F316/F316L process connections; 304 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: O8Q3B80 = 3" Q sensor with 300 transmitter (bulletin example options CD-D-MA-D-D-F-A-D-SA-AAS-A-A2-FA).
- O8 + Q (Sensor): Q = Promass Q sensor
- Transmitter digit: 3 = 300 (compact); 5 = 500 (remote)
- B + size (Nominal pipe size): B25 = 1"; B50 = 2"; B80 = 3"; B1H = 4"
- 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 SS0M042; 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.

