
Magnetic-inductive flow meter model SMF420
Magnetic-inductive flow meter, or a device used to measure the flow of liquids based on electromagnetic principles. If you are interested and want to know how this device works, you can read about it in the article What is an Electromagnetic Flow Meter (EMF)?. In this article, SCMA will introduce SMF420, one of the Magnetic-inductive flow meters from ifm's SMF series, to everyone in the industrial sector. We will explain its details and why this model has become so popular in Europe.

General Details
The SMF420 Magnetic-inductive flow meter from ifm has quickly gained popularity in Europe due to its high accuracy measurement, clear display readings on the screen, and compact size that makes installation easy regardless of industrial applications. Its durability is also noteworthy as it can be used for a long time without fear of breaking down easily. Additionally, when used with IO-Link, it enhances the performance of this SMF420 even further. With its competitive price around 138,000 THB, it's no wonder that this device is widely adopted.
Main Features of SMF420
- SMF420 offers highly accurate liquid flow measurement, typically with an accuracy of ±0.2% of the reading.
- Suitable for a variety of conductive liquids such as water, acids, bases, and various solutions.
- As it is a magnetic flow meter, there are no moving parts, which means less frequent maintenance.
- The design by ifm helps to reduce pressure loss, ensuring high operational efficiency.
- Equipped with advanced signal processing systems for stable and reliable measurements.
- Features an easy-to-use interface for configuration and monitoring.
- SMF420 can be easily installed and integrated into existing systems with ease.
External Features of SMF420
The external features of the SMF420 are compact in size, making installation easy. The unit is approximately 26 centimeters high and about 14 centimeters wide, with a weight of 5798.2 grams, allowing for convenient installation anywhere without clutter. The screen tilts up by 40 degrees from the mounting base, featuring a 3.5-inch TFT display with a resolution of 320 x 240 pixels, supporting color display and LED lighting around the screen in three colors.

Measurement Accuracy of SMF420
Volume flow measurement verification
- ± (0.2 % MW + 2 mm/s)
- ± (0.5 % MW + 1.5 mm/s)
Temperature measurement verification
- ± 1
Electrical conductivity testing
- in the range of 100...20000 µS/cm ±10% MW
- in the range of 20000...100000 µS/cm ±20% MW
Using SMF420 in Suitable Applications
- Can be used to monitor and manage water distribution, wastewater treatment, and industrial waste.
- Measuring chemical flow in corrosive environments and process control in the chemical industry.
- Accurate measurement of flow in food and beverage production lines to maintain quality and consistency.
- Precise measurement of liquid components and solvents in pharmaceutical manufacturing processes.
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Certainly, as the sole distributor in Thailand of industrial products from IFM, SCMA has this device and is ready to supply it to anyone interested. Just contact us for inquiries, we are fully prepared to serve everyone to elevate and sustain the industry's development. With over 40 years of experience in the industry, our after-sales service is committed to impressing everyone. Not only with the SMF420 model but SCMA also offers another model SMF320 for your selection based on your needs. If you are interested, feel free to contact us.



