MF30K Target Flow Switch

Target-type flow switch with adjustable switch point, low pressure drop and instant response, for liquid, gas and steam alarm and equipment interlock control.

Key Specifications

Model: MF30K
Principle: Target (drag force) with NAMUR two-wire switch transmitter
Size / Connection: DN15–DN2000 (version dependent)
Measuring range: Turndown 5:1 / 10:1 / 15:1; adjustable switch point
Accuracy: Accuracy grades 0.5% / 1.0% / 2.5%; repeatability 0.1–0.05%
Output / Protocol: NAMUR two-wire switch output; contact capacity AC 250V 5A (version dependent)

Category: Flow Meters » Flow Switch

Keywords:target flow switch adjustable flow switch flow alarm switch NAMUR flow switch

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The MF30K target flow switch brings the fouling tolerance of the target principle to flow alarming: an adjustable switch point, low pressure drop and instant response for liquids, gases and steam, ready for equipment interlock control.

The target sensor works with a two-wire NAMUR switch transmitter and standard NAMUR barriers and cards, suiting safety-related installations. Nominal pressures run from 0.6 to 6.3 MPa with electrical connections M20x1.5 or 1/2" NPT.

Key Features

Adjustable switch point; low pressure loss; immediate response
Wide flow coverage with turndown up to 15:1
Works on liquids, gases and steam, including dirty media
NAMUR two-wire transmitter for standard safety barriers
High-temperature version to +450 C

Technical Specifications

Measured media	Liquids, gases, steam
Nominal diameter	DN15-DN2000 (version dependent)
Medium temperature	Standard -100 to +100 C; high-temperature -100 to +450 C
Accuracy grades	0.5% / 1.0% / 2.5%
Turndown ratio	5:1 / 10:1 / 15:1
Repeatability	0.1-0.05%
Nominal pressure	0.6-6.3 MPa
Electrical connection	M20x1.5, 1/2 NPT
Protection class	IP65 / IP67
Power supply	24VDC
Contact capacity	AC 250V 5A

FAQ

How is the MF30K switch point set?

The switch point is adjustable on site across a wide flow range (turndown up to 15:1), with repeatability of 0.1–0.05%.

Flow switch or target flow meter — which do I need?

Choose the MF30K when you only need an alarm/interlock contact; choose the MF3 target flow meter when you need a measured flow value with 4-20mA output.

Can it be used in safety circuits?

Yes. The two-wire NAMUR output connects to standard NAMUR isolators and safety barriers used in interlock systems.

Request a Quote

Send your medium, pipe size, flow range, temperature and pressure to admin@hainameter.com or WhatsApp +86 15671082677.