It’s time for a showdown between the Emerson Micro Motion 5700 and ABB’s CoriolisMaster FCB450, two of the most popular Coriolis flow meters on the market.

CoriolisMaster FCB450 vs Micro Motion 5700


The Micro Motion 5700 comes with a new design totally focused on the user experience, with a cool display and an easy cable connection. It has true seamless integration, because the 5700 brings a ton of options to connect with the control system. We dig the simple setup process, too.

Courtesy of Emerson Automation Solutions

From the other corner, the FCB450 looks underpowered but has a mean left hook! The display and local buttons follow standard concepts, but the design has fancy features that can really add value to your work.

Courtesy of ABB

While never a big issue, these first impressions can sway your overall opinion if both designs offer the same accuracy, performance and seamless integration. So we like to address them. All for you, dear readers!


If you want a wide range of protocols so you can use the same model in different applications, then the 5700 has it! It has so much already built in, like HART, FOUNDATION Fieldbus, EtherNet-IP, and more. If you have a PROFIBUS, then you’ll have to work at it, but the 5700 pretty much has everyone else covered.

Sad to say, the FCB450 has a shorter reach here. It makes HART look like a luxury, offering only analog, pulse, frequency, or switch output.

At this point, the market already has customers with digital protocols in the field, running with FF, Modbus and others. If they search for products with the same protocols, then ABB will be out of the opportunity.

Flow sensor

The 5700 can combine with different sensors because here you have only one set of electronics for the whole portfolio. Sounds like a drawback, right? On the contrary, it gives you access to more chemical compatibility and temperature resistance. For example, the Elite sensor has a nice range of wetted material, like stainless steel, nickel alloy, and super duplex.

Micro Motion 5700 manual
Courtesy of Emerson Automation Solutions

The FCB450 has only two sensor options, the standard FCB and the FCH for hygienic applications. That boils down to stainless steel and nickel alloy for the FCB and polished stainless steel for the FCH.

Courtesy of ABB

Of course, if you have a hygienic process, then you only need one option, right? All the other options become meaningless. So don’t get too caught up in who has how much here!


For projected performance, you gotta scale out the meters here. You can use Emerson’s Toolkit or ABB’s online tool. Keep in mind that vendor projections occur in an ideal environment, and I’ll bet you a beer that your process has slightly different conditions.

For an example of real performance, you’ll have to talk to people who’ve used them. If anyone in the audience has, pop in and let us know!

Courtesy of ABB

The F-series sensor integrated with the 5700 offers high accuracy in liquids, +-0.1 percent in mass flow and 0.1 percent in volume flow. For gas, you’ll get +-0.5 percent and density around 0.0005 grams per cubic centimeter. These numbers look good, but don’t forget to read the fine print for all the possibilities that may make your mileage vary.

The FCB450 offers 0.1 percent in mass flow, 0.15 percent in volume, and a standard accuracy of 0.002 kilos per liter in density. However, it’ll give you up to 0.0005 with field calibration. Nice bump, ABB.

Information and documentation

I consider this a crucial point – the customer experience searching for documentation and relevant information. If you can’t offer a good user experience here in the 21st century, then a customer may think twice before buying your product. Pay attention, vendors!

Courtesy of ABB and Courtesy of Emerson Automation Solutions

Emerson updated its site recently, so you can easily find all documentation related to the field device, and the experience on mobile hits the same level. You also have a related blog, videos, and forums to support the end user with questions about applications, commissioning, and more. Well done, Emerson!

ABB has a less user-friendly site, but at least they have a mobile version, unlike some of their competitors! Still, they could stand to provide more information about their instrumentation products.

Bells and whistles

Yeah, most of these features you need to pay more to get, but if you love the benefits, you may want to shell out the shekels.

The 5700 offers SMART meter verification to check the health of your flow meter. I love that this tool reaches out to span the gap in maintenance between corrective and predictive. For full access you need the AMS suite with the snap-on or the PROLINK software. I also dig the built-in USB.

Courtesy of Emerson Automation Solutions

You can set up field devices offline and transfer the configurations using a USB stick! And you can save the other way, moving the configuration from device to laptop if you need to. YAAAAS!

Courtesy of ABB

The FCB450 has a similar version, the VeriMass, that can check device conditions and run diagnostics on sensor conditions. The VeriMass will completely test the device and give you a full report outlining the conditions of your electronics, sensors, outputs, and configurations. Good job on that one, ABB!


You know me, I like the shiny. But both devices qualify as good solutions. You can scale out the FCB450 and the 5700 to decide for yourself.

The 5700 brings more innovation to the table and can combine with a better flow sensor like the Elite. However, the ABB has good features and can achieve most requirements in most applications as well.

To make your decision easier, check out this comparison table!

Micro Motion 5700 vs ABB CoriolisMaster FCB450 table of comparison
Courtesy of ABB and Courtesy of Emerson Automation Solutions

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