Hanna BL983319 TDS Mini Controller (0 to 1999 ppm)

Description

The Hanna BL983319 TDS Mini Controller is a compact, panel-mounted process control instrument designed to measure total dissolved solids (TDS) concentrations ranging from 0 to 1999 mg/L (ppm). This small but powerful unit enables continuous monitoring and automatic dosing adjustment, ensuring process streams maintain optimal water quality parameters. Built for industrial, agricultural, and laboratory environments, it combines simplicity of use with advanced safety functions. The controller is available in two versions — BL983319-0, powered by a 12 VDC adapter, and BL983319-1, designed for 115/230 VAC input. Both models are protected by a rugged, fire-retardant casing, making them suitable for critical applications. Its clear multicolor LED indicator allows operators to identify system status at a glance, whether in normal monitoring, dosing control, or alarm condition.

Intelligent Relay Control with Multiple Operating Modes

At the heart of the BL983319 is its adjustable dry contact dosing relay, which can activate various devices such as dosing pumps, valves, audible alarms, or lights. When in automatic mode, the relay is triggered once readings exceed or fall below a programmed set point, depending on the intended process control. Manual control is available via the front-panel switch, allowing relay override for priming or testing dosing equipment. In addition, the programmable overdose protection feature adds an extra safety net, deactivating dosing if the desired set point is not achieved within the user-defined timeframe, adjustable between 5 to 30 minutes. This protection avoids chemical wastage, product contamination, or over-concentration within a system. The fuse-protected dosing contact supports loads up to 2A, ensuring reliability and extended lifespan for connected devices.

Enhanced Safety Features for Critical Applications

The BL983319 incorporates multiple safeguards, making it ideal for controlled environments where process integrity is paramount. The multicolor LED status indicator provides instant visual information: green for measurement mode when readings are below set point, orange/yellow when relay dosing is active, and blinking red during alarm conditions such as overdosing or fault states. Labeled terminal connections mean users can quickly and confidently wire the device to the appropriate power source, probe, relay, or safety alarms without complex manuals. Combined with automatic temperature compensation between 5 and 50°C (41 to 122°F) at a compensation factor ß = 2%/°C, the controller ensures readings remain stable despite variations in process temperature. These safeguards make the BL983319 an excellent choice for sensitive production, laboratory water treatment, and precision agriculture.

Specific Applications in Industry and Agriculture

This unit excels in fertigation systems, where it measures the TDS level in nutrient solutions and activates a dosing pump when concentrations are outside the optimal threshold. In hydroponics, it keeps nutrient water perfectly balanced for plant growth. For industrial water treatment, the BL983319 monitors discharged process water from cooling towers or boilers, triggering corrective dosing for corrosion inhibitors or scaling preventatives. In aquaculture, it ensures dissolved solid levels remain in a safe range for fish health. Laboratory chemists use it during small-scale experimental processes to dose precise chemical quantities. It also benefits food and beverage production lines by controlling ingredient concentration, while wastewater plants apply it to adjust effluent treatment chemicals. All these diverse sectors rely on the stability, precision, and durability provided by the BL983319.

Build Quality and Installation Convenience

Physically, the BL983319 is engineered for streamlined integration into any control panel. Measuring 83 x 53 x 99 mm, its compact footprint saves valuable space. Adjustable mounting brackets and clear installation cut-out dimensions make setup straightforward. The front has a large LCD with transparent cover that protects the display from dust and accidental damage, allowing operators to read measurements easily. Side and rear views of the housing reveal thoughtful design touches like quick-connect terminal blocks and secured, fuse-protected electrical connections. The fire-retardant casing provides extra safety and longevity, giving plant operators confidence in continuous operation even in demanding environments. Its calibration process, performed manually using the built-in CAL trimmer, offers flexibility for fine-tuning accuracy without complex procedures.

Technical Specifications and Performance Reliability

With a measurement range of 0 to 1999 mg/L (ppm) and a resolution of 1 ppm, the BL983319 provides precise feedback for process control. Accuracy at standard temperature (25°C / 77°F) is ±2% full scale, ensuring minimal deviation from actual TDS values. The device applies a 0.65 conversion factor to read conductivity in μS/cm — meaning 100 μS/cm equals 65 ppm. The recommended conductivity probe, HI7634-00, features an internal temperature sensor and a 2-meter cable for reliable readings but must be ordered separately. The dosing relay supports up to 250 Vac or 30 Vdc at 2A maximum, contact closing conditions are triggered when measurements exceed the set point. Overdosing protection operates in ranges from 5 to approximately 30 minutes, with the ability to disable it entirely if needed. The BL983319’s durability is reinforced by UL-listed materials, long service life components, and stable mechanical construction.

Global Delivery and Assurance from tpt24.com

The BL983319 TDS Mini Controller is widely recognized for its reliability and superior design, but obtaining an authentic unit with full manufacturer assurance is crucial. tpt24.com is the world’s leading online store for this product, delivering genuine Hanna Instruments controllers with full authenticity and quality guarantees. Regardless of your location, tpt24.com ensures safe packaging, exact specifications as ordered, and worldwide fast delivery. Customers benefit from access to certified accessories including the HI7634-00 probe, calibration solutions, and mounting hardware. This global reach combined with unmatched trustworthiness makes tpt24.com the best source for purchasing the BL983319 for industrial plants, agricultural systems, research facilities, or marine operations. By choosing tpt24.com, buyers gain peace of mind knowing they receive a product tested for accuracy and safety straight from authorized channels.

Summary of Key Features and Advantages

In summary, the Hanna BL983319 TDS Mini Controller is a specialized, compact solution for continuous TDS monitoring with dosing capability. Its multi-mode relay control, visual LED status indicators, programmable overdose protection, and robust fire-retardant build make it superior for high-precision applications. Every aspect — from its intuitive wiring connections to easy calibration — is engineered to reduce maintenance downtime, simplify operation, and enhance process safety. Whether deployed in hydroponics, industrial water treatment, food manufacturing, or aquaculture, it safeguards product quality and operational efficiency. Coupled with global availability from tpt24.com, this device delivers consistent, dependable performance backed by professional support. For businesses seeking a trusted controller that offers accurate readings, safety features, and compact design, the BL983319 sets the benchmark.