Comparison: CamCor CT Series vs Rheonik RHE08
Flow measurement is a core value in the industry, so you have plenty of options on the market, from a basic mechanical meter to a fancy Coriolis. But depending on your product and your process, you should choose carefully.
For instance, if you need to measure volume flow but the product has low conductivity, then you should skip the magmeter. In this case, you can get a vortex, ultrasonic, or even an orifice plate. But you’ll also need to figure out the pros and cons of each option mentioned here.
Today, we have more Coriolis flow meters to toss in the ring, and both companies are new to Visaya! These options fall on the simple side, but you can still get valuable data from them. On the left, we have Cameron with the CamCor CT Series, the premium option offered! On the right, we have the crew from Rheonik with the RHE08 and its accompanying RHM20 sensor! Let’s check ’em out!
Disclaimer: This product review examines only features, not performance. If you’ve used this device, feel free to share your experience in the comments.
The CamCor CT series has a traditional housing, but its LCD display puts it a step forward. The LCD gives you the option of white or orange backlight and at 128 x 68 dots is plenty big enough.
Through the display, you can read your process variables, diagnostics, and device menu. An important highlight is the infrared light sensor; you can set up the transmitter without opening the housing, which I like. It also has two LEDS on the front to alert you to problems.
Rheonik went a little more old school, almost back to the 80s. But the company promotes the RHE08 for universal purposes, so it covers a wide range of applications.
It’s a little on the large side at 322 x 218 x 146 millimeters and around 4.7 kilograms. Further, you can only wall-mount the transmitter remotely – no integration or optional mounts in sight. The simple LCD display has 16 characters and 2 lines, so you can see the process information and set up the transmitter locally, using three buttons on the front. Yeah, no infrared sensor or touchscreen here, but it still works fine.
Measurement and sensors
Both devices, like every other Coriolis device, provide mass and volume flow, temperature, and density. You can choose different sensors for the CamCor and use them in pipes from 1/4 inch to 10 inches. It has a good list of wetted materials for chemical compatibility, too.
The standard version works in temperatures from -20 to 90 degrees Celsius. The high-temperature version works up to 250 degrees Celsius and the low-temp version up to -40. The pressure rating varies here as well. You can find ANSI 150#, 300#, 600#, 900#, RTJ, DIN, threaded, and more.
Rheonik arranges its sensor portfolio by size and flow range. Once we figured it out, we chose the RHM20 for this review. This sensor offers a size from one to three inches and the standard “U” design, like the CamCor.
The RHM20 can handle temps from -196 to 350 degrees Celsius, a huge difference compared to the CamCor! It can also handle pressures up to 392 bars and offers a decent wetted material list: 316Ti, 904L, C22 alloy, tantalum, and even more on request. Very nice.
If you want good options for seamless integration and digital protocols, um, wrong party. These transmitters stick to the basics. On the CamCor CT series, we have analog+HART and communication, plus pulse and status input and output options. No FOUNDATION Fieldbus or Profibus, sorry.
The RHE08 has HART, analog, RS232, RS422, and RS485, along with two analog outputs, one frequency/pulse and three digital status. Yep, pretty bare bones.
The CamCor CT series brings a flow accuracy in liquids of +0.1 percent, in gas +-0.5 percent, and in density +-0.0005 grams per milliliter. The numbers sound competitive, but of course you have to scale out to see if they’ll hold true in your process.
Rheonik’s device has a flow accuracy around 0.15 percent, with 0.5 percent for density, a little short of the CamCor’s mark. Still, it’ll work all right in processes that don’t need much accuracy. If that sounds like your application, then maybe you should scale this one out.
We’ll eventually feature fancier devices again, but not today.
Information and documentation
Cameron’s website surprised me by being okay. It has a clear design with phone and tablet accessibility. Furthermore, it’s pretty easy to find information and download documentation on a device. Even digging into the technical manual and other documents didn’t faze me.
For a second surprise, Rheonik put together an accessible site as well. Navigating the site was smooth, and I found all the documents I wanted. The documentation is also pretty good, as you can search the PDFs easily. I was almost impressed!
Frankly, the Cameron device has a little more edge in several points over the Rheonik offering. However, if you don’t need much accuracy and don’t care about a fancy display, maybe you’ll want the RHE08. What do you think?
Table of comparison