Project Details
Hello, this is RS Korea's technical sales team. This project began with a very specific inquiry: a customer had come across one of our earlier posts featuring the SUPMEA 2100 indicator — a display and relay unit for level sensors — before it was even officially released, and reached out directly about it.
The inquiry came from an aluminum can manufacturing plant in Icheon, Gyeonggi-do. The goal was to install and monitor six level sensors. Since the customer wanted a full installation, we carried out a meeting and an on-site survey.
The site required level monitoring at six points across two zones (three sensors per zone), each with tanks holding sulfuric acid, hydrofluoric acid, and nitric acid. While corrosive fumes raised some concern about equipment durability, the site's temperature and humidity control was well managed, so this was not expected to be a significant issue.
The distance from the monitoring room to each measurement zone ranged from about 20 to 150 meters — not especially far, but the path was crowded with machinery and equipment, which made a wired installation impractical. Based on this, we reviewed the customer's requirements: accurate level measurement, a wireless installation, and a display that would be intuitive even for on-site staff unfamiliar with instrumentation. To meet these requirements, we brought in an additional demo unit and proposed a wireless solution built around RF signal transmission.
Since a wireless link was essential to the project, we sourced and tested an RF transceiver for analog signal transmission. In a walking range test, the signal was received reliably out to roughly 200 meters. While this falls well short of the unit's rated open-field range of about 3 km, it still represented solid performance once building walls and other obstructions were factored in.
After the test, we purchased the transmitter and receiver units and confirmed that the signal passed reliably from the ZP level sensor to the SUPMEA 2100 indicator. A site survey report and proposal were then prepared and shared with the customer.
The enclosure size for the transmitter and receiver boxes was calculated and the units were procured accordingly.
The panel layout was planned and the components were wired into the panel ahead of installation.
Before installation, the equipment and materials were laid out and photographed — standard documentation practice, similar to what is typically required for public-sector project records.
During the build, the six-channel transmitter and receiver wiring initially became mixed up. Using the SUPMEA C703S — an analog signal calibrator capable of signal measurement and output loop testing — the team was able to trace each channel and correct the wiring, restoring the panel to full working order after a couple of hours of troubleshooting.
The installation itself followed three simple steps at each of the six points: open the chemical tank and install the level sensor; route a waterproof corrugated conduit to the transmitter; and mount the transmitter panel with power at the designated location.
The receiver box was positioned outside the office, with the control panel installed inside.
For easier maintenance, the panel was wired with clip-type terminals rather than crimped ones, allowing the cover to be removed and reattached with ease.
After some troubleshooting along the way, the installation was completed successfully, with level readings transmitting normally to the display. The project combined ultrasonic level sensing, wireless RF transmission, and an intuitive indicator display to give the customer reliable, real-time visibility into six chemical tanks without the need for wired infrastructure.
Thank you for reading. For product consultations, demonstrations, or an on-site survey, please feel free to contact RS Korea's technical sales team during business hours.
Frequently Asked Questions (FAQ)
Why was a wireless system used instead of a wired installation?
The distance from the monitoring room to each measurement zone was manageable (about 20–150 meters), but the path was crowded with machinery and equipment, making a wired installation impractical. An RF-based wireless system was used instead.
What was the RF transceiver's tested range?
In a walking test, the signal was received reliably out to about 200 meters indoors. The unit's rated range is approximately 3 km under open, line-of-sight conditions.
What equipment was used for this installation?
The system combined SUPMEA ZP ultrasonic level sensors, an RF signal transceiver for wireless transmission, and a SUPMEA 2100 indicator for local display and relay output.
What chemicals were being monitored?
The site had six tanks across two zones containing sulfuric acid, hydrofluoric acid, and nitric acid.
How was a wiring issue during installation resolved?
A SUPMEA C703S analog signal calibrator, which supports signal measurement and output loop testing, was used to trace and correct a mix-up in the six-channel transmitter and receiver wiring.
#LevelMeasurement#UltrasonicSensor#WirelessMonitoring#SUPMEA#ChemicalTankSafety#RFTransmission#IndustrialMonitoring#ProcessInstrumentation#RSKorea#RemoteMonitoring
