The MF4 vortex flow meter covers gases, liquids and steam in one instrument, with a turndown of up to 60:1 and sizes from DN10 to DN600 (insertion versions to DN3000). Its ASSP spectral lock-in anti-vibration technology withstands vibration of 3g and above, a common failure point of conventional vortex meters.
Built-in temperature and pressure compensation with the IAPWS97 steam tables delivers compensated steam mass flow directly. Sensors can be replaced online without stopping the flow, and an anti-clogging sensor design is available for dirty media.
Key Features
- ASSP adaptive anti-vibration technology, >=3g; isolated-vibration and water-hammer-resistant sensor structures
- Online-replaceable and anti-clogging sensor options
- High-temperature version for media up to 450 C; range -196 C to +450 C
- Dot-matrix LCD with bilingual menu showing instantaneous/total flow, temperature and pressure together
- NAMUR NE43 fault alarm currents (3.6 mA / 22.5 mA)
- 13 self-diagnostics and alarms; IP68 submersible probe option
| Connection type / sizes | flange DN10–DN600; DN15–DN200; insertion, insertion DN150–DN3000 |
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| Pressure rating | flange PN2.5–PN250, Class150–Class1500 (); PN10–PN100, Class150–Class600; PN10–PN160, Class150–Class900; PN10–PN40, Class150–Class300 |
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| Medium temperature | flange/ -196–+450°C; / -40–+200°C |
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| Accuracy class | ±1%; ±0.75% (Re≥20000), max. ±0.5%; insertion ±2.0% |
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| Repeatability | flange/better than ±0.3%; / ±0.5% |
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| Body material | 304, 304L, 316, 316L, 321, HastelloyC, titanium alloy, carbon steeletc. |
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| Sensor material | 304, 316L, Hastelloy C, titanium alloyetc. |
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| Ambient temperature | standard -40–+80°C (LCD -20–+70°C; -20°C, , ); /flameproof -40–+60°C |
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| Ambient humidity | 5％~90％RH |
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| Power supply | two-wire 12~30VDC; 12~30VDC 3.6VDC ( ER34615 3~5 ) |
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| Output signal | 4–20mADC, ; standard 3.8mA/22mA, NAMUR NE43 3.6mA/22.5mA |
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| Communication protocol | HART7, FOUNDATION Fieldbus (FF), PROFIBUS-PA, Ethernet-APL, Modbus-RTU |
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| Display | LCD , English/Chinese menu, instantaneous / total flow, temperature and pressure on one screen |
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| Data security | 10 ; ; , etc. |
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| Converter housing | cast aluminum, polyurethane coated, optionalcast aluminum (<1.0%) |
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| Electrical connection | 2×M20X1.5 2×1/2NPT, on request |
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| Protection class | Integral and remote converter IP66/IP67, remote sensoroptional IP66/IP67 IP68 |
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| Explosion protection | GB/T 3836; Ex ia IIC T1–T6 Ga, Ex d IIC T1–T6 Gb; Ex ia IIIC T20070°C–T200430°C Da, Ex tD A21 IP66/67 T80°C–T440°C |
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| Process connection | HG/T 20592, HG/T 20615, GB/T 9112–9124, GB/T 20801, other standards on request |
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| EMC performance | GB/T 18268.1 (IEC 61326-1); 1kV (-), 2kV (-) |
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| Vibration resistance | GB/T 17214.3, standard 1g, 2g, 3g |
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