The Smith Meter MPU 1600c is a multipath transit-time ultrasonic flowmeter for custody-transfer measurement of natural gas. It meets OIML R137 Accuracy Class 0.5 with only 5D of upstream straight pipe and no flow conditioner, and has been verified to AGA Report No. 9 (2017), ISO 17089 and WELMEC 7.2. Titanium-encapsulated transducers are flush-mounted and can be retracted under pressure, and the Series C UMC electronics offer an optional 5.7-inch touch screen, Ethernet (copper and fiber) and HART.
Key specifications
- Sizes: 6, 8, 10, 12, 16, 20 and 24 in in the catalog code (flow table extends to 60 in; others on request)
- Flow range (actual): 6 in: 27-2,010 Am³/h; 12 in: 105-7,880 Am³/h; 24 in: 300-29,580 Am³/h; velocity 0.4-30 m/s (0.3 m/s from 20 in)
- Accuracy: Uncalibrated: ≤±0.35% (12 in and larger), ≤±0.5% (10 in and smaller); flow-calibrated: ≤±0.1%; repeatability ≤±0.05%
- Pressure: 15-3,990 psia operating; ASME Class 150 through 1500 (2500 on request)
- Temperature: Gas -4 to 158 °F; ambient -13 to 140 °F
- Materials: A350 LF2 carbon steel or A182 F316 stainless body; titanium transducers; NACE MR0175 design
- Standard I/O: 24 VDC; 2 pulse outputs (0-10 kHz, quadrature); 2 x 4-20 mA in + RTD in; 1 x 4-20 mA out; 3 Ethernet (2 copper, 1 fiber); EIA-485
- Approvals: UL/cUL, ATEX, IECEx; OIML R137-1&2, R137-3, WELMEC 7.2, AGA-9, ISO 17089-1
How to read the model code
Example: MPU16S0611SSBS. Read the code left to right; each position selects one option:
- Position 1 (Model): MPU16 = MPU 1600c
- Position 2 (Hazardous-location certification): S = UL/cUL, ATEX, IECEx
- Positions 3-4 (Diameter): 06, 08, 10, 12, 16, 20, 24 (inches); bore matched to Sch 40 tapering to Sch 80 measuring section
- Position 5 (End connections): 1 = Cl 150; 2 = Cl 300; 3 = Cl 400; 4 = Cl 600; 5 = Cl 900; 6 = Cl 1500; 7 = Cl 2500 (consult factory)
- Position 6 (Body material): 1 = carbon steel; 2 = 316 stainless; X = special
- Position 7 (Transducer material): S = standard titanium; X = special
- Position 8 (Transducer type): S = standard; L = special
- Position 9 (Mechanical certification): B = ASME B31.3; P = PED; C = CRN; X = special
- Position 10 (Ethernet): S = standard
- Electronics (UMC enclosure code): UMC-E-(A aluminum / S stainless)-(P pedestal / H high-temp extension / C custom)-(M M20 / N 1/2 in NPT)-S-0-(B blind cover / T 5.7 in touch screen)-(0 none / 1 HART)
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 SSKS009; 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.

