KROHNE – OPTISONIC 8300

The OPTISONIC 8300 is a 2-path ultrasonic flowmeter designed for the measurement of gases under extreme temperature conditions (-200°C…+593°C / -328°F…+1100°F) and at elevated pressures (up to 200 bar / 2900 psi). This makes it a standard solution for boiler and power plant monitoring or as a steam billing device. With connected temperature and pressure sensors, the flowmeter’s integrated flow computer can also calculate steam mass flow or enthalpy.

The OPTISONIC 8300 is equally well-suited for cryogenic gas applications, making it an ideal choice for boil-off gas (BOG) measurement or for flow measurement in air separation rectification (ASR) cold boxes.

Features & Options

• Bi-directional flow measurement over a wide dynamic range
• Integrated flow computer option: Mass flow and enthalpy calculation according to IAPWS-IF97
• Current inputs for external pressure and temperature sensors
• Suitable for energy balancing
• High accuracy: <±1% error of measured value (>DN150)
• Can be certified for custody transfer measurements (only in certain countries applicable)
• Full mechanically safe design for cryogenic applications
  • User-friendly parameterisation, monitoring and on-site verification
  • Extensive sensor and process diagnostics
  • Via HART^® using the OPTICHECK DTM
  • Verification report about device status with one click
• Full bore design: No moving parts, no wear, no pressure loss
• No periodical maintenance or recalibration needed
• Ex d certified stainless steel (316 L) connection box
• ATEX, IECEx, QPS and NEPSI approvals
  • Hazardous area process temperatures up to +593°C / +1100°F
  • Zone 0 approval for measurement of explosive gas mixtures

General information

Product type	Flowmeter
Product family name	OPTISONIC
Product positioning	For cryogenic or high-temperature gases and superheated steam
Product variants	OPTISONIC 8300 – High-temperature version OPTISONIC 8300 LT – Low-temperature version
Measurement principle	Ultrasonic
Measured media	Gases, Steam

Operating conditions

Process pressure	max. 200 barg/ 1465 psig
Process temperature	-25…+593°C/ -13…+1100°F

Materials

Measuring tube

Carbon steel (A105 Gr. B)

Process connections

Flange connections

EN (1092-1): DN100…1000 ASME (B 16.5): 4…40″

Approvals/Standards

Certificates/Approvals Ex	ATEX, cQPSus, IECEx, NEPSI
Certificates/Approvals Others	CRN

Communication

Analogue outputs	4…20 mA
Discrete outputs	Limit switches, Pulse, Frequency, Status
Digital outputs	FOUNDATION™ Fieldbus, HART®, Modbus RTU