KROHNE – OPTISONIC 4400 HT

The OPTISONIC 4400 HT is a 2-path ultrasonic flowmeter for crudes, a broad range of refined products and other liquids that are processed at high temperatures. This makes the flowmeter the perfect choice for accurate flow measurement of high temperature feed flows in refineries. It is also highly suitable for flow measurement of molten salt or synthetic heat transfer oil with high and rapidly changing temperatures at concentrated solar power (CSP) plants. Other typical applications include condensate as well as feed water or spray water measurement at power plants.

Features & Options

• Bi-directional flow measurement over a wide dynamic range
• Meets the requirements of the oil and gas industry: NACE MR 175/103 and ISO 15156 conformity
• Independent of flow profile (Reynolds number) and product variations
• Resistant to corrosive and abrasive products
• Transducer replacement under process conditions
  • User-friendly parameterisation, monitoring and on-site verification
  • Extensive sensor and process diagnostics (incl. NE 107)
  • Via HART^® using the OPTICHECK DTM
  • Verification report about device status with one click
• Optional heating jacket
• Welded-end connections on request
• No periodical maintenance or recalibration needed
• Suitable for use in Safety Instrumented Systems with SIL 2

General information

Product type	Flowmeter
Product family name	OPTISONIC
Product positioning	For high temperature liquids
Measurement principle	Ultrasonic
Measured media	Liquids

Operating conditions

Process pressure	max. 100 barg/ 1450 psig
Process temperature	-45…+600°C/ -49…+1112°F

Materials

Measuring tube

Austenitic stainless steel (1.4404/316L), Carbon steel (A106 Gr.B)

Process connections

Flange connections	EN (1092-1): DN25…1000 ASME (B 16.5): 1…40″
Other connections	Welded connections (on request)

Approvals/Standards

Certificates/Approvals Safety

SIL 2

Communication

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