Installation] Installation of FIX800 O2 H2S EX closed space gas concentration meter at Incheon City sewage treatment plant, installation of temperature and humidity transmitter for work environment analysis, and integrated monitoring through FIX AP

Hello, this is Pilseung Jeong, assistant manager of RS Korea’s technical sales department. The title is too long. That's because there are so many stories to tell. But these days, it seems like there's a trend of putting everything they want to say in the title, including the title of an idol's song or a novel, so I feel like I'm just following the trend. For reference, there is a song called Eve, Psyche, and Blackbeard's Wife by Le Seraphim. Listen to it. It's not bad. Today's post will be very long and there will be a lot of photos. We will start by summarizing the conclusion in two brackets and proceed. FIX800 O2 H2S EX for closed space safety and FIX-DS 3CH for entrance status board are installed at two sewage treatment plants in Incheon City (not installing two in one facility, but in separate areas). Easily and simultaneously monitoring information at two installed points is required. The new product, FIX AP, is installed in both places to manage it at the same time in the control room. Recent issues have been set up. What is done? Additional installation and integrated monitoring of temperature and humidity transmitters to confirm appropriate temperature. Conclusion: Connect wireless monitoring hardware to the existing FIX 800 installation site, install additional temperature and humidity meters, and complete training! Now let's start the long story. This scene is a bit special. Through distributors, FIX800 3GAS, an installable complex gas meter that can simultaneously measure three gases, O2, H2S, and EX, which are expected to be generated for the safety of workers in confined spaces inside water treatment plants, and an electronic display board that can check the status at the entrance have already been installed in two locations. This is the status. https://www.rs-korea.com/shop/goods_view.php?gno=326&goods_name=800&x=0&y=0 If you are a regular subscriber to our blog, I think you have already indirectly experienced numerous cases of installing electronic signs and measuring instruments using this combination. If you are visiting for the first time, you can search for ‘installation’ in the blog search. In 2023, we were in the process of developing systems and hardware that could wirelessly conduct not only the installed gas meters handled by RS Korea, but also other complex environmental monitoring, and at the right time, the city of Incheon also made a request that fit our development direction, so we accelerated research and development and completed the launch of FIX AP, an integrated environmental monitoring system, in February of this year. https://blog.naver.com/rs-korea1/223389757701 PART1| FIX AP launch and site visit We headed to the site with a happy heart holding our first released product. The most important thing when applying wireless communication hardware FIX AP is the communication status on site. As detailed in the blog post above, you must be able to connect to a LAN line from a nearby router or be in an environment with sufficient WIFI waves.

Proceed sequentially. I connected the FIX AP to the WIFI on site. Thankfully, in order to proceed smoothly with this project, a WIFI router was set up near the point where the FIX AP is scheduled to be installed. The FIA ​​AP model receives both RS-485 communication and 4-20mA analog signals sent from the measuring device and transmits data to the web cloud. Since the site was already connected 1:1 with the status board and measuring instrument, we decided to use the 4-20mA terminal of the FIX AP. This is an advantage of the FIX800, which enables both digital communication and analog output without separate options, and is also an advantage of the FIX AP, which can receive both.

FIX-AP has a generous 6CH of 4-20mA reception terminal and includes a 24V output ± terminal, so it is applicable to all types of transmitters using 2WIRE, 3WIRE, and 4WIRE. Since there are three sensors, we plan to connect channels 1, 2, and 3. Still, there are 3 channels left. At this point, I suggested a temperature and humidity transmitter. PART2| FIX AP installation and connection

We cut the existing line from one corrugated pipe and installed a junction box in the middle to add a 4-20ma line. FIX800's 3 strands of 4-20mA signal line, 1 strand of temperature, 1 strand of humidity and 1 negative common line. It was not easy to install a total of 6 strands of wire in the existing pipe, so I laid a new line.

There is plenty of space next to the status board. It's reassuring to have the router right next to you. When communication is connected, the name of the device on the display changes to the ID set by the user. Connect to the server and register the device. It takes approximately 1 minute and 48 seconds for communication to begin after the initial connection. Since the two locations are not far apart, construction can be completed within one day. Actually, to prevent the blog from becoming too long, I summarized the contents a bit, but the two tasks, installation of FIX-AP and two communication connections, installation of temperature and humidity transmitter and two communication connections, were done on different days. The existing budget consisted of FIX-AP, and the temperature and humidity part was a proposal that was in progress, so additional time was needed to execute the budget, so construction was inevitably carried out in separate parts. PART3| Cloud service setting and commissioning, user training

After completing installation at both locations, training on the use of the monitoring service will be conducted in an office that is completely remote from the actual site. Starting from the photo on the left, we sequentially proceeded with content related to real-time concentration monitoring, saved data management screen, and installation location for each location. The person in charge already has mobile web monitoring turned on on your phone. Since there is no application or program installation, anyone can connect to the cloud system at the same time and comfortably monitor the situation at the installation location.

We captured the screen with the user's consent. I conscientiously erased the items with detailed information. There is a review saying that they were very satisfied at the site.PART4| Conclusion: Remote monitoring through FIX AP, versatility of all transmitters with 4-20mA output. RS Korea, which has grown to another level, has succeeded in wireless monitoring even existing installed measuring devices. It is also quite satisfying to be able to see not only gas but also various environmental factors at the same time. We ask for your continued interest and will provide updates on device connections using only 485 communication in the future. We will continue to develop options that allow the use of the status board and FIX-AP measuring instrument at the same time. If you need to wirelessize a gas meter or environmental measuring device that you are currently using, please contact us at any time through the business card below. Based on weekday working hours

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