Hanna Conductivity Mini Controller (0.00-10.00 mS/cm) - BL983327-1 | 115/230VAC

This controller is particularly effective in applications such as boiler water management, cooling towers, chemical dosing systems, and laboratory process control, where conductivity directly impacts performance and safety. It offers both automatic and manual dosing modes, enabling users to control processes based on real-time conductivity values. In automatic mode, the dry contact relay activates when the measured value exceeds the user-defined setpoint, allowing actions such as tank bleeding, freshwater addition, or chemical dosing. The adjustable overdosing timer, ranging from approximately 5 to 30 minutes, adds an extra layer of process safety by preventing excessive dosing.

Designed for ease of use and reliability, the BL983327-1 features a large LCD display with a protective cover, ensuring clear readability even in industrial environments. A multicolor LED indicator provides instant visual feedback on system status, helping operators quickly identify operating conditions. The controller supports manual EC calibration through a dedicated trimmer, allowing routine accuracy checks and adjustments as per application needs. Automatic temperature compensation from 5°C to 50°C (β = 2%/°C) ensures consistent and accurate readings even when process temperatures fluctuate.

Built with a fire-retardant plastic casing, the controller offers enhanced safety and durability for demanding industrial conditions. The dosing relay is rated up to 2A at 250 VAC or 30 VDC, making it suitable for controlling solenoid valves and other external devices. Widely used in water and wastewater treatment plants, food and beverage processing, chemical industries, and laboratory automation, the BL983327-1 provides a dependable, efficient, and customizable solution for conductivity-based process control Conductivity Controller