Hanna BL983315 TDS Mini Controller (0.0 to 199.9 ppm)

Description

The Hanna BL983315 TDS Mini Controller is a compact, panel‑mounted process monitoring instrument designed for precise measurement and control of total dissolved solids (TDS) in process streams ranging from 0.0 to 199.9 ppm (mg/L). It is purpose‑built to handle low‑range TDS applications where accuracy and control reliability are critical to process quality, whether in industrial, laboratory, or water treatment settings. Equipped with a large LCD protected by a transparent cover, it delivers clear readings in any environment, while the durable casing ensures long‑term stability. Operators can set the unit to automatic or manual dosing modes, making it equally suited to continuous control systems or manual intervention contexts. In its automatic mode, the BL983315 activates a dry‑contact relay whenever the measured value exceeds the programmed set point, allowing direct control of dosing pumps or solenoid valves in TDS regulation systems. This makes it a powerful solution for keeping process water quality within strict specifications.

Dedicated Functions for Modern Water Treatment Control

One of the most compelling aspects of the BL983315 is its specialized design for water treatment operations. It is particularly effective in monitoring and controlling output water from ion exchange units, reverse osmosis (RO) systems, and distillation plants, ensuring that residual TDS is maintained within acceptable limits. By applying a conversion factor of 0.5, the controller effectively interprets EC (conductivity) measurements such that 1.0 μS/cm equates to 0.5 ppm TDS, ensuring precise conversion between physical measurement values and dissolved solids concentration. The adjustable dry contact dosing relay engages whenever readings go beyond the user set point, automatically managing dosing volumes without manual oversight. The unit’s compact panel‑mount design makes it ideal for integration into control boxes and system panels, and installation is made easy with supplied mounting brackets and clearly labeled termination connections that speed up probe and power integration.

Advanced Safety Through Programmable Overdose Protection

Process safety is a priority, and the BL983315 integrates programmable overdose protection to safeguard systems against uncontrolled dosing. Operators can set the overdosing timer between 5 and 30 minutes, or disable it entirely when the process does not require timed control limits. If the measurement never reaches the set point within the programmed time, the system will automatically deactivate the dosing relay, preventing excess chemical addition, pump burnout, or unwanted process deviations. This safety feature is vital for dosing applications involving critical chemical agents that could damage equipment or compromise product quality when overused. With relay override capability, users can instantly switch dosing control to manual operation for priming pumps or troubleshooting processes, offering maximum flexibility and control in live operational environments.

Clear Status With Multicolor LED Indication

Operators benefit from instant visual feedback thanks to the BL983315’s multicolor LED indicator, which communicates the controller’s operating status at a glance. The green LED indicates normal measurement mode with readings below the set point, showing that no dosing is active. Orange/yellow shows readings above the set point, confirming relay activation for dosing or control. A blinking red condition signals alarm states such as exceeding the maximum dosing time, prompting quick corrective action from operators. This LED status system reduces the need to constantly read the display, allowing staff to monitor conditions visually even from a distance or in dimly lit industrial spaces. Combined with the large LCD panel, it ensures that process status is transparent and easy to verify, making the BL983315 suitable for operations where quick decision‑making is critical.

Rugged, Compact Build for Industrial Environments

The BL983315 is constructed with a fire‑retardant casing designed for durability and safety in demanding industrial environments. Despite its rugged build, the unit is compact, measuring 83 x 53 x 99 mm (3.3 x 2.1 x 3.9 inches), which allows it to fit neatly into crowded control panels. The installation process benefits from adjustable location brackets that ensure secure and precise placement inside the panel cut‑out, and both side view and front view installation dimensions are provided for easy setup. Fuse‑protected dosing contacts accommodate up to 2A loads, supporting direct operation of a dosing pump, valve, audible alarm, or warning light. The quick‑connect terminal blocks are clearly labeled to streamline integration of the HI7634‑00 conductivity/TDS probe (recommended with internal temperature sensor) and power source connections. Such thoughtful design features make the BL983315 a user‑friendly and technician‑friendly device for both initial installation and long‑term maintenance.

Specific Applications Across Industry and Laboratory Fields

In industry settings, the BL983315 excels in ensuring water quality compliance for processes that demand strict control over dissolved solids content. In food and beverage production, it can be integrated to monitor feed water purity for bottling or brewing, guaranteeing product quality and taste consistency. In pharmaceutical manufacturing, it helps maintain water standards required for sterile production environments, reducing the risk of contamination. Laboratory applications include precise control of water quality in experimental setups or chemical preparation work. In boiler feed systems, the BL983315 can prevent scaling by keeping dissolved solids at safe levels, protecting costly heat‑exchange equipment. For desalination plants, it serves as a fine‑tuning instrument for post‑treatment quality control, ensuring output meets potable water standards. Regardless of the application, operators can configure automatic dosing to add neutralizing agents or manage process flow to maintain optimal TDS. These features are bolstered by compatibility with worldwide power standards, allowing deployment anywhere in the world with minimal adaptation.

Guaranteed Quality Supply by tpt24.com Worldwide

For buyers seeking authenticity, quality assurance, and global delivery capability, the BL983315 TDS Mini Controller is available through tpt24.com, the world’s leading online store for this product. tpt24.com guarantees the authentic origin and manufacturer quality standards of every unit, shipping to any country with secure international delivery. Customers benefit from professional packaging, comprehensive documentation, and the confidence that the product will perform exactly as specified. Whether upgrading an existing water treatment system, equipping a laboratory, or installing new industrial process controls, purchasing from tpt24.com ensures that the BL983315 arrives ready to deliver precision measurement and reliable control. This trusted supplier services multiple industries worldwide and stands behind its guarantee, making it the preferred choice for operators who value performance stability and proven product integrity.

Technical Specification Summary and Product Integration Notes

The BL983315 provides a 0.1 ppm resolution in TDS measurement, with ±2% full‑scale accuracy at 25°C (77°F). Automatic temperature compensation operates within 5 to 50°C (41 to 122°F) with a coefficient of β = 2%/°C. Calibration is manual via the CAL trimmer, giving users fine adjustment capability to match reference standards. The dosing relay is rated up to 250 Vac or 30 Vdc, supportable by an onboard fuse for protection. Operators may adjust the dosing overtime window between 5 and 30 minutes, depending on particular process needs. Power configurations include 12 VDC adapter (model ‑0) or 115/230 VAC 50/60Hz mains operation (model ‑1), covering both low‑voltage and standard mains installations. The recommended probe—HI7634‑00—features internal temperature sensing for enhanced accuracy. With a weight of just 200 g for the DC model and 300 g for the AC variant, this controller integrates into existing process systems with ease, supplying both measurement and relay control functionality to a broad range of applications.