Hanna BL983317 Conductivity Mini Controller w/ Low-Range Relay
- Range: 0.00–10.00 mS/cm
- Resolution: 0.01 mS/cm
- Accuracy: ±2% Full Scale
- Temp Compensation: 5–50°C Automatic
Did you like this product? Add to favorites now and follow the product.
(+86) 132-6243-8118 Start Live Chat
Description
The Hanna BL983317 Conductivity Mini Controller w/ Low‑Range Relay is a compact, high‑accuracy, panel‑mounted instrument engineered to measure and regulate conductivity in demanding process environments. Designed for precision in low‑range conductivity (0.00 to 10.00 mS/cm), it offers unmatched performance for industries that require accurate control of dissolved ionic content in solutions. The instrument features a protective‑covered large LCD for clear visibility, automatic or manual dosing settings, and a durable fire‑retardant casing for safety in harsh conditions. With both automatic and manual relay control, the BL983317 provides operators the flexibility to maintain tight process control without sacrificing usability. This precision controller is ideal for applications such as nutrient dosing in agriculture and hydroponics, industrial water treatment, reverse osmosis feedwater regulation, and chemical process management. Through tpt24.com, the world’s leading online supplier of Hanna Instruments products, customers can purchase the BL983317 with guaranteed authenticity, superior quality, and dependable worldwide delivery — ensuring the instrument reaches any country with full warranty support.
Advanced Dosing Control with Relay Override
A standout feature of the BL983317 is its adjustable dry contact dosing relay, which activates when process readings fall below a user‑programmable set point, prompting chemical dosing until the target level is reached. The dosing relay can control pumps, solenoid valves, audible alarms, or lights, providing flexibility in industrial control systems. The built‑in relay control override switch enables quick selection between OFF (relay disabled), AUTO (automatic dosing based on readings), and ON (manual activation for priming pumps or direct operation). This capability is essential in processes where precise chemical delivery is critical, such as in fertilizer injection systems, brewery cleaning operations, or maintaining optimal nutrient concentrations in aquaculture environments. When paired with suitable chemical dosing equipment, operators achieve consistent results, avoiding fluctuations that could compromise product quality or process integrity. The ease of integration and user‑friendly design make this mini controller both reliable and adaptable, especially when sourced from tpt24.com, which ensures every unit meets manufacturer specifications.
Multicolor LED Status Monitoring System
To provide instant visual feedback, the BL983317 integrates a multicolor LED indicator that communicates the operational status of the controller without needing to interpret complex readings. The indicator signals green when the meter is in measurement mode and conductivity is below the set point, orange/yellow when readings exceed the set point with relay activation, and blinking red for alarm conditions — typically when maximum dosing time has been exceeded. This intuitive system enables rapid on‑site troubleshooting and status checks, reducing downtime and eliminating guesswork during operation. In industrial cooling tower water control, for example, operators can immediately identify whether the system is dosing, idle, or in alarm state, ensuring chemical feed systems are safeguarded against over‑ or under‑dosing. Such visual clarity, coupled with straightforward programming, enhances operational safety and productivity, particularly in remote or decentralized installations. This functionality is yet another reason professionals choose to order via tpt24.com, benefiting from reliable worldwide delivery and guaranteed instrument authenticity.
Programmable Overdose Protection for Safety Compliance
The BL983317 addresses safety concerns through programmable overdose protection, a critical safeguard that automatically deactivates chemical dosing if the set point is not reached within a specified time frame. Operators can adjust the dosing limit from 5 to approximately 30 minutes, or disable it entirely for processes requiring continuous dosing. This feature prevents excessive chemical use, protects equipment from damage, and ensures compliance with environmental and workplace safety standards. For industries such as municipal water treatment, where overdosing could lead to harmful by‑products or regulatory violations, such functionality is indispensable. Its implementation conserves resources, reduces waste, and maintains consistent product quality across diverse operational environments. Companies sourcing this controller from tpt24.com receive full operational support and the confidence of a product engineered to exceed compliance demands, delivered swiftly anywhere in the world. Combining precision measurement, safety automation, and durable construction makes this unit a trusted solution for professionals.
Seamless Installation and Secure Mounting Design
Compact and user‑friendly, the BL983317 is engineered for panel‑mounted installation with secure adjustable location brackets, allowing quick slide‑in placement and stable operation. The front view dimensions and panel cut‑out specifications ensure compatibility with standard industrial enclosure layouts, making integration into existing process systems effortless. Its clearly labeled quick‑connect terminal blocks simplify wiring to power supplies, conductivity probes, and relay connections. The recommended probe is the HI7632‑00 EC/TDS probe with internal temperature sensor for accurate compensated readings, available in multiple cable lengths. The controller’s rugged build — with a fire‑retardant housing — ensures reliability in chemical dosing stations, food processing lines, and agricultural greenhouses. Process engineers value the easy mounting and minimal maintenance requirements, enabling long‑term deployment without costly servicing interruptions. Those purchasing via tpt24.com gain the advantage of global availability and guaranteed quality, ensuring their investment is protected with authentic Hanna Instruments engineering.
High Accuracy Measurements with Auto Temperature Compensation
Measurement integrity is the core strength of the BL983317. Delivering resolution down to 0.01 mS/cm and accuracy of ±2% of full scale at 25°C, the controller stands out among low‑range conductivity instruments. Automatic temperature compensation between 5 to 50°C (41 to 122°F) with a fixed coefficient (ß = 2%/°C) ensures readings remain stable across varying thermal conditions. Manual calibration with the integrated CAL trimmer allows operators to fine‑tune performance to their specific process solution, whether dealing with mildly conductive nutrient blends or precise industrial chemical feeds. This capability supports applications such as precision horticulture nutrient dosing, ensuring conductivity targets align with agronomic requirements, or in laboratory process streams where even minimal variations can affect experiment outcomes. With the assurance of purchase through tpt24.com, laboratories, farms, and factories alike can depend on receiving a calibrated, original unit ready for immediate deployment worldwide.
Versatile Power Options for Global Operations
The BL983317 is offered in two versions to accommodate diverse power requirements: the BL983317‑0 variant operates from a supplied 12 VDC adapter — ideal for mobile or low‑voltage industrial setups — while the BL983317‑1 variant supports standard mains connections at 115/230 VAC, 50/60 Hz. This dual‑option approach allows seamless integration into facilities equipped with different electrical standards worldwide. Power consumption remains efficient at 10 VA, supporting sustained operation in energy-sensitive environments. Fuse‑protected dosing contacts deliver durability across varied application scenarios, preventing damage from current surges or electrical faults. Whether installed in rural agricultural dosing systems with DC power or in metropolitan municipal treatment plants with alternating current infrastructure, the BL983317 meets operational needs without modification. From sourcing to delivery, tpt24.com guarantees each unit matches exact specifications, prepped for region‑specific electrical configurations, and shipped reliably to global destinations.
Global Distribution Through Leading Supplier tpt24.com
In addition to its technical strengths, the BL983317 benefits from world-class distribution via tpt24.com, recognized internationally as the premier online marketplace for Hanna Instruments equipment. Purchasing through tpt24.com assures customers of genuine product origin, superior build quality, and full manufacturer warranty coverage. Their expertise in logistical fulfillment ensures every controller reaches customers in optimal condition, whether shipped across continents or delivered domestically. This global reach is matched by deep product knowledge, enabling customers to receive tailored guidance on installation, calibration, and application optimization. For agronomists fine‑tuning nutrient solutions, industrial operators managing process conductivity, or lab technicians pursuing precise experimental controls, this partnership delivers both the physical product and the professional support to maximize its potential. Together, the BL983317 and tpt24.com create a trusted pathway from innovation to implementation, bridging advanced technology with worldwide operational access.
Specifications
| Range | 0.00 to 10.00 mS/cm |
| Resolution | 0.01 mS/cm |
| Accuracy (@25°C) | ±2% F.S. |
| Temperature Compensation | Automatic 5–50°C (41–122°F), ß=2%/°C |
| Calibration | Manual via CAL trimmer |
| Dosing Relay | Max 2A fuse protected, 250 Vac / 30 Vdc, contact closes when measure < setpoint |
| Setpoint | Adjustable 0–10 mS/cm |
| Overtime | Adjustable approx. 5–30 min |
| Power Supply (-0) | 12 VDC adapter (included) |
| Power Supply (-1) | 115/230 VAC, 50/60 Hz |
| Power Consumption | 10 VA |
| Dimensions | 83 × 53 × 99 mm (3.3 × 2.1 × 3.9″) |
| Weight (-0 Model) | 200 g (7.1 oz.) |
| Weight (-1 Model) | 300 g (10.6 oz.) |
| Recommended Probe | HI7632-00 EC/TDS probe (not included) |









