KROHNE OPTISONIC 6300 Clamp-On Ultrasonic Flowmeter

Overview: Flow Measurement Without Cutting Into the Pipe

The KROHNE OPTISONIC 6300 is an ultrasonic clamp-on flowmeter for permanent installation, particularly suited to flow measurement of conductive and non-conductive liquids at any location where inline measurement is not possible or desirable. Because the sensor rails simply clamp onto the outside of an existing pipe rather than requiring the pipe to be cut and a wetted sensor inserted, the OPTISONIC 6300 can be installed on virtually any pipe up to DN4000 (160 inch) at any location, on new construction or as a retrofit, without process interruption.

As an authorized supplier of KROHNE flow instrumentation, Seven Star LLC sources and supplies the OPTISONIC 6300 clamp-on flowmeter to refineries, water utilities, and petrochemical facilities across Oman and the wider GCC. Because clamp-on ultrasonic measurement accuracy depends on correct sensor rail selection, spacing, and pipe surface preparation, Seven Star LLC helps engineering teams specify the correct OPTISONIC 6300 configuration for each pipe and application.

Measurement Principle

The OPTISONIC 6300 measures flow using the transit-time ultrasonic principle: two transducers integrated within a stainless steel sensor rail send ultrasonic pulses diagonally across the pipe, with the pulse traveling faster in the direction of flow and slower against it, and the flowmeter calculates flow velocity from this transit-time difference through the pipe wall and fluid. Because the sensors clamp externally rather than penetrating the pipe, there is zero pressure drop and no wetted parts to wear, foul, or require replacement.

For demanding applications, the OPTISONIC 6300 offers Dual path or X-mode configurations – two paired sensor rails with crossed measuring paths – delivering more stable and reliable measurement than a single-path arrangement, particularly valuable where flow profile disturbances or moderate installation constraints would otherwise degrade single-path accuracy. The flowmeter continuously measures actual volume flow, mass flow, flow velocity, velocity of sound, signal gain, and signal-to-noise ratio, giving operators direct visibility into both the process and the measurement’s own health.

Engineering Design of the OPTISONIC 6300

The 316L stainless steel sensor rail system is designed for quick, easy, and accurate installation – mountable to any pipe within minutes using KROHNE’s fixing units, with the same rail type usable in hazardous areas, extended-temperature applications, harsh offshore conditions, or as an IP68/NEMA 6P version for submerged installation. Fixed signal cables of 6 m or 10 m (optionally up to 30 m) connect the sensor rail to a wall-mounted or field-mounted UFC 300 signal converter, and solid coupling pads are available as an alternative to coupling grease to minimize maintenance, particularly for high-temperature applications up to 200°C.

The signal converter features pre-programmed pipe parameters and an installation wizard for quick measurement point setup, advanced diagnostics per NAMUR NE107, and can function as a heat energy calculator in addition to flow measurement. Communication options span 4-20 mA, HART7, Modbus, FOUNDATION Fieldbus, and PROFIBUS PA/DP, giving the OPTISONIC 6300 broad compatibility with existing plant control and monitoring systems.

Key Features

The KROHNE OPTISONIC 6300 Clamp-On Ultrasonic Flowmeter delivers non-invasive flow measurement without process interruption. Key characteristics include:

• External clamp-on sensor rails: no pipe cutting, no wetted parts, zero pressure drop.
• Suitable for pipes up to DN4000 (160 inch); process temperature up to +200°C.
• Dual path / X-mode configuration for enhanced measurement stability and reliability.
• 316L stainless steel sensor rails; IP68/NEMA 6P version for submerged applications.
• Installation wizard and pre-programmed pipe parameters for quick commissioning.
• Integrated thermal energy calculation and NAMUR NE107 diagnostics.
• 4-20 mA, HART7, Modbus, FOUNDATION Fieldbus, and PROFIBUS PA/DP communication.

Industrial Applications

The OPTISONIC 6300 is deployed across chemical addition lines, cooling water circuits, refined hydrocarbon pipelines, potable and deionized water systems, and general process control wherever an inline flowmeter cannot be installed, whether due to process interruption cost, pipe material, or retrofit constraints on an existing line. Its non-invasive design makes it particularly valuable for large-diameter utility and cooling water pipes where cutting into the line for an inline meter would be costly and disruptive.

Seven Star LLC supports refinery utility teams, water authorities, and petrochemical plant engineers across Oman, Muscat, Sohar, and the broader GCC region with sourcing of KROHNE OPTISONIC 6300 clamp-on flowmeters, helping projects add flow measurement points without process shutdown.

Technical Specifications

The table below summarizes the core specifications of the KROHNE OPTISONIC 6300 Clamp-On Ultrasonic Flowmeter as supplied by Seven Star LLC.

Call To Action

Seven Star LLC supplies the KROHNE OPTISONIC 6300 clamp-on ultrasonic flowmeter with full manufacturer documentation and regional technical support. Contact our instrumentation division for a formal B2B quotation, to confirm the correct sensor rail size and configuration for your pipe, or to obtain the complete technical datasheet. Seven Star LLC ensures every unit shipped across Oman and the GCC is genuine KROHNE hardware, correctly specified, and backed by local support.