Dear experts, how do I set the zero point for a Rosemount 2410 radar level gauge?

First of all, this is a Rosemount gauge; it definitely supports HART. Find a 475 device to connect it to and check out the menu structure. Additionally, I am quite proficient in radar operations. I’m not sure what you mean by “empty mark”; regarding radar settings, there are basically the following elements: installation height (tank height), upper blind zone, lower dead zone, and range ； A more complex approach is to add a lower limit for signal strength on the radar waveform diagram in order to eliminate noise.

This post was last edited by ゞ① dot ゞ on 2017-5-10 22:30. This is different from what you might be familiar with; it’s not a radar. It’s something similar to a hub, called a Hub, and it is used in conjunction with a radar

The last edit to this post was made by め① dot ゞ on 2017-5-10 at 22:38. Don’t disassemble it like that; if the seal isn’t proper, water will get in. There’s no point in taking it apart – seal it properly first. First of all, this is not a radar; in simple terms, it is a local display that is used in conjunction with a radar. More precisely, it is called a Hub. The actual radar is located on the top of the tank; the radar on the tank’s roof, along with sensors for temperature, pressure, and so on, feed their signals in here, from where the signal wires are used to transmit the data outward. This thing cannot be configured for radar use. Radar uses a bus protocol, and it requires dedicated software and hardware as well as specialized service engineers for debugging. If you are using a 4-20 mA analog output, you can connect it directly to the card and set the range accordingly. If that’s not the case, there is a blue rectangular box in the cabinet area, called FCU2160 or FCU2460. The two-wire signal lines coming from the 2410 devices are usually connected together in a junction box; this junction box must be located on-site, and then the signals are combined into one bus that is connected to the blue box in the cabinet area. Note that this is very important – otherwise, communication issues may arise later, and these issues can be difficult to resolve, or even impossible to fix!!! The blue box then communicates with the system, typically via 485 output; further configuration is required, and the system operator also needs to make settings on the DCS in order to ensure proper data transmission. Give up and contact the manufacturer through business channels instead. Where are you from?

This is indeed a hub; the radar level gauge is located at the top of the tank, while this one is at the bottom. It communicates with the DCS via 4-20mA signals. No 485 or wireless communication is available. It’s not clear how to set the low and high thresholds for the level measurement. The 475 handheld controller allows only basic settings, and only the upper and lower limits of the range can be configured. Furthermore, empty mark, full mark, distance, and level parameters are the terms used for a E+H radar level gauge. What a pro; thanks for the advice. It seems I’ll have to turn to the manufacturer.

Well, 475 cannot be configured for this purpose; regardless of the output type, the debugging and configuration process remains the same, and specialized software and hardware as well as trained professionals are required. This radar also requires empty marks and full marks, with similar operations, it’s just not called that specifically! Contact the manufacturer! Where are you from and what’s your workplace? Wasn’t it tuned by anyone at the beginning? Why does it need to be adjusted again?

This post was last edited by freeguest on 2017-5-11 10:40. Got it, thanks. We are a local refinery; the manufacturer came to do adjustments in the initial stage, but they were not successful, as the dimensions of the flared end and the waveguide were incorrect during installation, and no reflector plates were installed at the bottom of the tank. The manufacturer said it was impossible to make the adjustments accurately. Just keep delaying it. But I saw that E+H has a pretty straightforward setup, and I thought the method would be the same; I didn’t expect it to be more complicated. I plan to buy a Hart-modem and ask the manufacturer for the configuration software so that I can configure it myself. Oil has already been poured into the tank; if it can’t be adjusted properly, then it’s fine.

Oh, is the size of the waveguide too large? Without a reflector plate, the low liquid level is affected; other aspects are not significantly impacted. If the size of the waveguide is large, the output may be non-linear, and the deviations will not be consistent. There’s nothing else to do then. It’s a shame such a good radar is so expensive. Don’t buy a Hart-modem for this radar; it doesn’t use the Hart protocol – it employs Rosemount’s proprietary TRL/2 protocol. There is a dedicated device for it, called the FBM2180, which is exclusive to Rosemount and costs around 10,000 or several thousand dollars. Additionally, its configuration software is also paid for, and its price is higher than that of a modem. You’re unlucky – Rosemount has only this one radar that isn’t from Hart, and it’s the only one whose calibration software is charged.

This post was last edited by freeguest on 2017-5-13 00:28. Yes, the size of the waveguide is larger. Thank you for your advice; it seems I’ll have to turn to the manufacturer after all. Thank you so much – I’ve learned a lot from this.

This requires an FBM modem as well as specialized radar software for communication processing; the communication is handled in the 7a8a section of the HUB, or it can also be processed on the FCU2160 or 2460