Analytical sensors – Why switch from analog to digital sensor?
Analytical sensors - Why switch from analog to digital sensor? Let's park pH for a minute to learn more about digital analytical sensors. The industry clearly favors the digital sensor trend, as they've become more common over the past decade. But why? Vendors claim ease of use and better reliab ...
HART theory: Sending a digital communication through an analog signal
Could you explain how it's possible to send a digital communication through an analog signal? ...
Pulse or analog for custody transfer?
Since most Coriolis transmitters provide both pulse and analog 4-20 mA outputs for the reading, which works better for liquid custody transfer where the reading goes to a flow computer and why? How about the digital HART output from the transmitter? ...
Analog and digital communication
Hi, I am new to instrumentation and need to know the difference between HART and FOUNDATION Fieldbus. I mean, the process range usually converts from HART to 4-20mA, but what about FF communication? ...
Product Review: Rosemount 5708 3D Solids Scanner
Product Review: Rosemount 5708 3D Solids Scanner Nowadays, companies working with radar level measurement for bulk solids have a new nightmare to ruin their sleep, known as the 3D level scanner (today's pick: the Rosemount 5708). This topic comes up more often now that Emerson has acquired APM. Bef ...
Control valves basics – what you need to know
Control valves basics We've all used a valve or two in our lives, right? I hope so! Sink taps, shower taps, and so on are all valves that we use in our daily routines. Yes, I know some are hands-free, but most still aren't. Anyway, these aren't control valves. You have to manually set the position ...
Product Review: OMEGA FMG600 Series magnetic flow meter
Product Review: OMEGA FMG600 Series magnetic flow meter You're absolutely right, I didn't write many product reviews at the end of last year! I used that time to work on new types of content to find out if they could help our audience better. In that vein, I created our buyer guides, combining exis ...
The definitive guide to DeviceNet – All you need to know about it
The definitive guide to DeviceNet When we talk about process automation protocols, many names pop into our heads. We have analog as the most common, of course. Then for digital protocols, HART, FOUNDATION Fieldbus, and PROFIBUS PA usually come up first. However, you can find other ways out there to ...
What’s the best meter for diesel flow measurement?
Hey, I need the right flow meter - one with at least 0.75 percent accuracy - for an application. Could you help us? The pipe is 1" and the product is diesel, with the maximum temperature 40C, pressure 6 kg/cm2, and flow 3 m3/hr. We're using analog communication. Any ideas? ...
Recap 2017 and the most-read articles of the year!
Recap 2017 and the most-read articles of the year! Hello, everyone! I hope you had a great Christmas and are hyped for New Year's Eve. With the new year ahead of us, it's time to look back at how we've lived in the past year and make our resolutions, right? With this look-back/plan-forward spirit, ...