LMI Milton Roy Liquitron DP5000 pH Controller DP5000-1A-0

The LMI Milton Roy Liquitron DP5000 is a microprocessor-based pH controller designed for precise control of metering pumps in water treatment, chemical dosing, and industrial process applications. It features dual pump control for acid and base addition, allowing automatic pH adjustment in systems like cooling towers, boilers, and wastewater treatment. Key features include a backlit LCD display for easy monitoring, programmable setpoints, alarms, timers, and calibration functions. It supports 4-20 mA outputs for integration with SCADA systems and accepts pH probe inputs for real-time measurement. Advantages over similar products include robust IP65-rated enclosure for harsh environments, user-friendly interface with hold and edit modes, and reliable performance from a trusted manufacturer. Benefits include reduced chemical waste, improved process efficiency, and easy installation. Drawbacks may include the need for compatible LMI pumps and potential complexity for basic applications. This model is ideal for demanding environments requiring accurate pH control, offering better durability than entry-level controllers while being more cost-effective than advanced PLC-based systems. Condition analysis from images shows an unused open-box unit with slight weathering, no visible damage, and intact faceplate details including serial number and ratings.