Flow measurement

The OPTIFLUX 4400 series delivers precise electromagnetic flow measurement across demanding industrial applications, engineered specifically for safety-critical instrumented systems (SIL 2/3). Available in compact (C) and field-mounted (F) configurations, this flowmeter accommodates liquids across an extensive temperature range (-40 to +180°C) with multiple liner materials and flange standards (EN, ASME, JIS). ATEX/IECEx certified and HART-compatible with discrete pulse outputs, it combines industry-leading ±0.2% accuracy with robust construction rated to 40 barg and superior repeatability for real-time process control and wireless on-site diagnostics.

Specifications

Product type

Flowmeter

Product family name

OPTIFLUX

Product positioning

For safety instrumented systems (SIS), advanced process applications and wireless on-site verification

Product variants

OPTIFLUX 4400 C - Compact version OPTIFLUX 4400 F - Field-mounted version

Measurement principle

Electromagnetic

Contact to measured medium

Yes

Measured media

Liquids

Ambient temperature

-40...+60°C / -40...+140°F Up to +65°C / +149°F with fan

Power supply (VAC)

85...252 VAC

Power supply (VDC)

24 VDC

Process pressure

max. 40 barg/ 580 psig

Process temperature

-40…+180°C/ -40…+356°F

Liner

Perfluoroalkoxy alkane (PFA), Polytetrafluoroethylene (PTFE), Polyuretane (PUR), Hard rubber, Ethylene tetrafluoroethylene (ETFE)

Flange connections

EN (1092-1): DN2.5…2000 (larger on request) ASME (B 16.5): ⅒…80" (larger on request) JIS (B 2220): 2.5…1000A

Pressure ratings

PN40 / ASME Cl 600 up to ASME Cl2500 (fully rated) on request

Certificates/Approvals Ex

ATEX, IECEx, NEPSI

Certificates/Approvals Safety

SIL 2/3

NAMUR compliance

NE 107, NE 21, NE 43, NE 53, NE 131

Analogue outputs

4…20 mA

Discrete outputs

Pulse, Frequency, Status

Digital outputs

HART ®

Accuracy (liquids)

Measuring error ±0.2% of measured value (±1 mm/s) Repeatability: ±0.1% of MV, minimum 1 mm/s

Revision

EN