The OPTISONIC 3400 is a 3-beam, in-line ultrasonic transit-time flowmeter for homogeneous conductive and non-conductive liquids. It covers a very wide application range: cryogenic to high process temperatures, thin aqueous liquids to extremely viscous products, and low to extreme pressure ratings, with accurate bi-directional measurement starting from zero flow. The fully welded sensor has no moving parts, and the advanced converter provides all common I/O, communication protocols, verification and self-diagnostics. It is offered as a compact meter or as a remote OPTISONIC 3000 F sensor with UFC 400 converter.
Key specifications
Measuring principle: Ultrasonic transit time, 3 parallel acoustic paths, fully welded
Nominal diameter: DN25-3000 / 1-120"
Measurement range: 0.3-20 m/s / 0.98-65 ft/s, bi-directional
Accuracy: ±0.3% + 2 mm/s of actual flow rate (standard); repeatability ±0.2%
Process temperature: Compact -45 to +140°C; remote -45 to +180°C; extended to +250°C; cryogenic -200 to +180°C (remote)
Measured values: Volume flow, mass flow, flow speed and direction, velocity of sound, signal diagnostics, totals
Inputs / outputs: Current with HART, pulse, frequency, status, limit switch, control input (by I/O version)
Communication: Modbus RS485, HART 7, Foundation Fieldbus, Profibus PA/DP
Calibration: 3-point calibration by direct volume comparison standard
How to specify / order
Liquid, viscosity range and whether it is conductive
Flow range and line size
Operating pressure and temperature (standard, extended or cryogenic)
Flange standard and pressure rating
Compact or remote version, I/O and communication protocol
Hazardous-area requirements
Pricing and lead time are quoted per configuration. Send the model, application details, product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Guidant Measurement literature (OPTISONIC 3400); confirm current data with the factory before ordering.
Offered by Guidant Measurement (Smith Meter) through its brand partnership with KROHNE. Flow Measurement Services supplies and services Smith Meter equipment.