1. Automated Sump Pump Control in Industrial Wastewater Treatment
A 61F-G3D controller is installed to manage a sump pump in a wastewater collection pit. The wastewater contains various dissolved salts and chemicals, making it highly conductive. The controller automates the pumping cycle and provides critical alarms.
Problem SolvedPrevents sump overflow by triggering a high-level alarm and protects the pump from dry-running with a low-level alarm. The low-sensitivity feature (0-1.8 kΩ) ensures reliable switching in the highly conductive wastewater without the false triggers common with general-purpose units.
wastewater managementsump pump controlconductive liquidlow specific resistancedry run protectionoverflow preventionlevel switch
2. Seawater Ballast Tank Level Control and Alarm System
On a marine vessel, the 61F-G3D is used to automate the filling and emptying of seawater ballast tanks to maintain stability. Seawater's high salinity gives it very low electrical resistance, requiring a specialized controller.
Problem SolvedAutomates ballast pump operation, reducing manual oversight. Integrated high-level alarms prevent dangerous overfill conditions, while low-level alarms indicate pumping issues. The low-sensitivity characteristic is perfectly matched for the high conductivity of seawater, ensuring precise control.
marine automationballast tankseawater level controlconductive level sensingvessel stabilitylow-sensitivity switchmarine engineering
3. Chemical Dosing Tank Level Management in Plating Facilities
The 61F-G3D is employed to control the level of acidic or alkaline solutions in a holding tank that feeds an electroplating line. These chemical solutions are highly conductive and require robust level management to ensure process consistency and safety.
Problem SolvedEnsures a consistent supply of chemicals by automatically refilling the dosing tank. The high-level alarm prevents hazardous chemical spills from overfilling, while the low-level alarm warns of a depleted supply, preventing process interruptions. Its low-sensitivity is essential for reliable operation with conductive chemical solutions.
chemical processingelectroplatinglevel controlacid tankdosing tank automationspill preventionconductive chemicals
