High accuracy, up to 0.3% of reading
Works on liquids and gases
No pressure drop
Wide measurement range, 0.5 to 65 ft/s
Process temperature range of -200 deg. C to 250 deg. C
Custody transfer (CT) models
Common Models
OPTISONIC 3400 – Liquid Process Applications
OPTISONIC 3400 – District Heating – District Heating Applications
OPTISONIC 4400 – HP– High-Pressure Liquid Applications
OPTISONIC 4400 – HT– High-Temperature Liquid Applications
OPTISONIC 6300 P – Clamp-on Temporary Liquid Flow Applications
OPTISONIC 6300 – Clamp-on Liquid Flow Applications
OPTISONIC 7300 – Inline Natural Gas, Process Gas and Utility Gas Applications
OPTISONIC 7300 – Inline Natural Gas, Process Gas and Utility Gas Applications
High accuracy, up to 0.2% of reading
| Product type | Ultrasonic Flow Meter (Clamp-on or Inline) |
| Product family name | OPTISONIC Series (Krohne) |
| Pipe sizes | DN15 to DN4000 (½” to 160″) for clamp-on; DN25 to DN3000 (1″ to 120″) for inline |
| Measurement principle | Transit-time differential ultrasonic measurement (multi-path for high accuracy) |
| Measured media | Liquids (conductive/non-conductive), gases, steam; suitable for cryogenic and high-temperature applications |
| Process pressure | Up to PN200 / ASME Cl 1500 for liquids; gas versions up to PN450 / ASME Cl 2500 |
| Process temperature | Cryogenic: down to -200°C (-328°F) High temp: up to +250°C (+482°F) for liquids; gas up to +180°C (+356°F) Special versions: up to +600°C (+1112°F) for thermal oil |
| Accuracy | Inline: ±0.3% of measured value (under reference conditions) Clamp-on: typically ±1-2% of reading Repeatability: ±0.2% |
| Optional Outputs | Temperature and pressure inputs for energy or mass flow calculation Digital communication: HART®, Modbus, FOUNDATION™ Fieldbus, PROFIBUS-PA/DP Analog: 420 mA, pulse, frequency outputs |
Get a customized quote tailored to your specific needs. Our team is ready to help you find the right solutions at the best value. Reach out today!
