The Chemtrol CH250 Digital ORP/pH Controller is a microprocessor-based water chemistry control system designed to automatically regulate sanitizer levels (ORP) and pH in pool, spa, and water treatment applications. It supports consistent water quality by controlling chemical feed systems based on real-time sensor readings. Key Features • Microprocessor-based controller automatically maintains both ORP (sanitizer level) and pH for balanced water chemistry.• Compatible with residential and commercial pools, spas, and light industrial water treatment systems.• Adjustable ORP setpoints (typically 400–900 mV) and pH setpoints (4–10 range) allow precise control. • Supports multiple feed modes including manual, automatic, and proportional control operation. • Includes ORP and pH sensors for real-time monitoring and control feedback. • Built-in alarms and overfeed safety timers help prevent chemical overfeeding and system imbalance. • Front panel interface provides direct access to all control functions and system adjustments. Product Overview The Chemtrol CH250 Digital ORP/pH Controller is designed to automate water chemistry management by continuously monitoring sanitizer effectiveness (ORP) and pH levels, then adjusting chemical feed systems accordingly. This helps maintain consistent water quality while reducing manual testing and chemical waste. The controller operates similarly to a thermostat, activating chemical feeders only when needed to maintain target levels. This improves efficiency, reduces overfeeding risks, and supports compliance with water quality standards in pools, spas, and commercial aquatic facilities. With integrated sensors, adjustable setpoints, alarm protection, and multiple operating modes, the CH250 is a practical solution for facilities requiring reliable, automated chemical control and long-term system stability.
