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Electromagnetic flowmeters are the most precise instruments for measuring conductive liquids. Utilizing Faraday’s Law of Electromagnetic Induction, they achieve exceptionally accurate flow measurement with nearly zero pressure loss. FREHNIG was one of the first companies in India to develop indigenous technology for these flowmeters, starting in 1999. As the leading manufacturer in South India, Frehnig has installed around 30,000 meters, and the extensive experience from this large installed base has been incorporated into the design of the FMF-2301.
The FMF 2301 features a single measurement and output board, significantly enhancing system reliability. This design also facilitates easy and straightforward servicing.
The FMF-2301 features a state-of-the-art 24-bit ADC and the latest microcontroller, providing a highly accurate and high-resolution measurement system. Its analog front end is designed to handle signals effectively, even in environments with high process noise.
The FMF-2302 features a heavy duty transformer based power supply and Industrial Grade Electronics with stringent quality control and testing, including power cycling before wet calibration
The separate version of the electronics is the preferred choice for installation because:
a) It provides easier visibility of the readings.
b) It ensures inherent safety, as the electronics can be placed in a secure and environmentally safe location.
c) It prevents the transfer of process temperature and vibration to the electronics.
Additionally, the new enclosure is IP67 certified for enhanced safety.
The sensors are designed for durability, featuring an extra-thick PTFE lining and a coil housing made of extra-thick steel for extended lifespan. 3mm grounding rings provide solid ground contact, enhancing accuracy while also serving as excellent lining protectors. The sensor is fully welded to ensure ingress protection, and a stainless steel material of construction (MOC) is also available.
Activate Each meter is wet calibrated for performance in a state-of-the-art flow calibration laboratory, adhering to the gravimetrico Sett ISO-4185 standard.
| Transmitter | |
|---|---|
| Flow Range | 0.03 to 10 m/s |
| Accuracy | ± 0.5% of MLC within range |
| Minimum Conductivity | >10 μs/cm |
| Flow Range | 0.03 to 10 m/s |
| Display | Backlit 2 Line alphanumeric LCD |
| Flow Rate Unites | LPS, LPM,LPH,M3/Hr - programmable |
| Totalizer Unites | Liter, M3-Programmable |
| Communication | Rs232/RS-485 selectable |
| Analog Output | 4-20 mA - programmable |
| Digital Pulse Output | Passive Open Collector |
| Empty Pipe Detection | Liter, M3-programmable |
| Transmitter Enclosure | Aluminum Die Cast, Power Coated |
| Enclosure Protection | IP-65 |
| Power Supply | 220V A/C 50Hz ±10% -15 Watts |
| Sensor | |
|---|---|
| Flow Range | ANSI-B 16.5 |
| Coil Housing | Carbon Steel Fully Welded |
| Measuring Tube | Seamless Stainless Steel 304 |
| Other MOC | SS-316L, Hastelloy-C |
| Terminal Enclosure | Die Cast Aluminium |
| Pressure Rating | 10 bar |
| Liner | PTFE, Hard Rubber |
| Grounding Ring | 3mm SS304 |
| Operating temp | PTFE- 120°C |
| Hard Rubber - 50°C | |
| Ingress Protection | IP-67 / IP-68 |
| Cable Entry | M16 cable gland |
| Pipe Size | Max Flow | Nominal Flow | Min Flow | Creap (Cut-off) | |
|---|---|---|---|---|---|
| 10 m/s | 5 m/s | 0.3 m/s | 0.04 m/s | ||
| Inch | Mm | Lps | Lps | Lps | Lps |
| 1 | 25 | 5.09 | 2.50 | 0.15 | 0.016 |
| 1 1/4 | 32 | 8.00 | 4.0 | 0.25 | 0.03 |
| 1 1/2 | 40 | 12.00 | 6.0 | 0.14 | 0.05 |
| 2 | 50 | 19.80 | 10.0 | 0.58 | 0.08 |
| 2 1/2 | 65 | 33.18 | 16.10 | 1.00 | 0.13 |
| 3 | 80 | 43.61 | 22.0 | 1.50 | 0.20 |
| 4 | 100 | 75.10 | 38.0 | 2.41 | 0.33 |
| 6 | 150 | 170.43 | 85.0 | 5.50 | 0.69 |
| 8 | 200 | 295.11 | 147.0 | 9.70 | 1.38 |
| 10 | 250 | 465.18 | 232.0 | 15.20 | 2.08 |
| 12 | 300 | 667.18 | 333.0 | 22.0 | 2.77 |
| 14 | 350 | 798.18 | 399.0 | 23.95 | 3.20 |
| 16 | 400 | 1166 | 583 | 38.0 | 5.55 |
| 18 | 450 | 1500 | 750 | 50.0 | 7.0 |
| Pipe Size | Flow Table Length* | Height | Flange O.D | Linear Face Dia | P.Circle Dia PCD | Bolt Hole Dia | Size/No of Bolts | ||
|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | P | θ | ||||
| Inch | mm | mm | mm | mm | mm | mm | mm | mm | |
| 1/2 | 15 | 200 | 170 | 89 | 35 | 60.3 | 16 | 12 | 4 |
| 1 | 25 | 200 | 190 | 108 | 51 | 79.4 | 16 | 12 | 4 |
| 1 1/2 | 40 | 200 | 206 | 127 | 73 | 98.4 | 16 | 12 | 4 |
| 2 | 50 | 200 | 233 | 152 | 92 | 120.6 | 19 | 16 | 4 |
| 2 1/2 | 65 | 200 | 260 | 177 | 105 | 139.7 | 19 | 16 | 4 |
| 3 | 60 | 200 | 272 | 191 | 127 | 152.4 | 19 | 16 | 4 |
| 3 | 80 | 200 | 272 | 191 | 127 | 152.4 | 19 | 16 | 4 |
| 4 | 100 | 250 | 300 | 218 | 157 | 177.8 | 19 | 16 | 8 |
| 6 | 150 | 300 | 360 | 279 | 216 | 241.3 | 22 | 19 | 8 |
| 10 | 250 | 381 | 482 | 406 | 324 | 431.8 | 25 | 19 | 12 |
| 12 | 300 | 457 | 558 | 482 | 381 | 431.8 | 25 | 19 | 12 |
| 16 | 400 | 610 | 672 | 596 | 470 | 540.0 | 29 | 25 | 16 |
| 18 | 450 | 686 | 712 | 636 | 533 | 578.0 | 32 | 256 | 16 |
Thickness of Lining + Grounding Rings not included
For Sizes above 18″(450mm), contact FREHNIG
Frehnig has been in the business of manufacturing Flowmeters for more than 25 years. The parent company was in operation for more than 40 years. The trust Frehnig has built over the years is a testament to the commitment to its customers.
With nearly 30,000 installed flowmeters in operation successfully all over the country, FREHNIG is one of the most successful companies in flow measurement.
With around 10000 sqft of electronics manufacturing-office space and 10,000 sq ft of sensor manufacturing space and a proposed new facility,in the industrial city of Coimbatore, FREHNIG is well equipped to serve its customers.
Frehnig is one of the earliest manufacturers of Electromagnetic flowmeter in INDIA with 100% indigenous technology. Every part of the design is conceived and manufactured in house. The strong design capabilities enable us to deliver quality products at affordable prices.
A considerable investment goes into development of new technology and upgrading existing technology. State of the art equipments are added to aid the design process.
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An ultra-modern state of the art Flow Calibration lab has been set up to aid in the wet calibration of all flowmeters.
The Flow lab consists of two state of the art stainless steel rigs with the state of the art instrumentation, data acquisition and calibration software. The rig confirms to ISO-4185 standards and has been designed fabricated and commissioned 100% in-house.
The calibration lab will enable FREHNIG to support all its customers with a Nationally traceable calibration and detailed performance reports. Because of the fully automatic rig calibration can be done in a shorter time.
The rig also supports comparison calibration method for faster calibration time. FREHNIG is committed to providing reliable, repeatable and traceable calibration which is also affordableto all its customers.
Frehnig has maintained Testing/Calibration records for all meters manufactured since the very first meter
All supporting hardware for Frehnig products are available. These include IOT devices for transfer of data to cloud via GPRS and interconnection of devices using wirelss LoRa nodes. External modbus adapters are available for safety. Datalogging software of offline and online application with database is also available. All products are manufactured.
