Hanna Conductivity (EC) Controller (0.0 - 199.9 µS/cm) - BL983320-1 | 115/230VAC

Hanna BL983320-1 Conductivity (EC) Controller is a compact and highly reliable process control solution designed for precise monitoring and regulation of low-range electrolytic conductivity in industrial, laboratory, and water treatment applications. Operating within a measurement range of 0.0 to 199.9 µS/cm, this controller is ideally suited for processes such as reverse osmosis (RO), ion exchange, distillation systems, and ultrapure water monitoring where maintaining strict conductivity levels is essential for system performance and product quality.

This controller supports both automatic and manual dosing modes, offering flexibility for different operational requirements. In automatic mode, the built-in dry contact relay (max 2A, fuse-protected) activates when the conductivity exceeds the user-defined setpoint, enabling direct control of solenoid valves or dosing systems for real-time process correction. The adjustable overdosing protection, ranging from approximately 5 to 30 minutes, adds an extra layer of safety by preventing excessive chemical dosing and ensuring process stability.

Designed for accuracy and ease of operation, the BL983320-1 features a large LCD display with a protective cover for clear visibility and durability in industrial environments. It includes automatic temperature compensation from 5 to 50°C (β = 2%/°C), ensuring consistent and accurate readings despite fluctuations in process temperature. Manual calibration via an accessible CAL trimmer allows users to fine-tune the controller for optimal performance based on site-specific conditions.

The unit is housed in a fire-retardant enclosure, enhancing safety and compliance in demanding installations. A multicolor LED indicator provides instant visual feedback on system status, simplifying monitoring and troubleshooting. With compact dimensions of 83 x 53 x 99 mm and a lightweight design of approximately 300 g, it is easy to install in control panels and process systems. Operating on 115/230VAC, 50/60Hz power supply, it offers compatibility with standard industrial electrical infrastructure.

Widely used in water treatment facilities, laboratory process control, and industrial quality assurance systems, the BL983320-1 delivers a dependable combination of precision, automation capability, and durability. It is an ideal choice for professionals requiring accurate conductivity monitoring and efficient dosing control in low-conductivity applications. Conductivity Controller