Hanna BL100 Pool and Spa pH Controller and Dosing Pump

Description

Advanced pH Regulation for Aquatic Systems

The Hanna BL100 Pool and Spa pH Controller and Dosing Pump is an advanced and cost‑effective solution designed to maintain optimal pH levels in swimming pools, hot tubs, and spas. Engineered for precision, it prevents the inefficiencies caused by elevated pH, ensuring chlorine in its most effective disinfectant form—hypochlorous acid—remains dominant. The addition of chlorine, especially in liquid or solid forms, tends to raise water pH, reducing sanitization performance if unmanaged. The BL100 corrects this automatically using its high‑accuracy pH sensing system and integrated dosing pump. Installation is straightforward: the probe and injection valve are placed in‑line with the recirculation pump, and the desired chemical is dosed directly into the water flow. This ensures large commercial aquatic facilities and private pools maintain health standards without manual intervention. tpt24.com stands out as the world’s leading online store for Hanna BL100, offering guaranteed authenticity, unmatched quality, and worldwide delivery regardless of the customer’s location.

Built‑In Peristaltic Stepper Motor Pump

At the heart of the BL100 lies a powerful built‑in peristaltic dosing pump equipped with a stepper motor. This design eliminates mechanical wear components such as gears and brushes, greatly reducing maintenance needs and extending service life. The pump offers automatic proportional control or simple on/off dosing, preventing pH overshoot while ensuring quick adjustment to any deviations from the set point. In proportional mode, dosing flow rate changes depending on how far the measurement is from the target pH. For example, with a set point of pH 7.40, in larger deviations the pump runs faster, and as it approaches the ideal level, the dosing slows. This mechanism allows operators to fine‑tune chemical delivery, protecting both the facility and its users. This robust pumping capability makes the BL100 not only suitable for standard residential pools but also invaluable for commercial water parks and therapy spas that require continuous chemical regulation.

Adjustable Flow and Intelligent Controls

The BL100 is designed with precision flow control, adjustable between 0.5 and 3.5 L/h (0.13 to 0.92 G/h), accommodating small or large water systems with equal efficiency. It includes a startup delay timer (0–600 sec) for dosing control and an overtime safety timer (1–180 min or off) to prevent overfeeding chemicals in error conditions. The system features programmable high and low pH alarms which stop dosing when thresholds are breached, enhancing operator safety. The intuitive multi‑colored LCD display—green for normal operation, light green for standby, and flashing red for alarm—allows instant status identification. This, coupled with simple menu navigation, supports quick operational adjustments without complex training. Commercial maintenance companies often choose the BL100 for its adaptability in diverse environments—from compact spa pools to Olympic‑size facilities—because precise flow rate control is essential for both chemical efficiency and environmental compliance.

Precision pH Measurement with HI10053 Probe

The BL100 relies on the HI10053 amplified pH/temperature probe featuring a Quick Connect DIN connector that ensures a waterproof seal, preventing electrical noise interference in humid environments. The integrated amplifier stabilizes readings even near powerful recirculation pumps, while the PVDF body ensures chemical resistance and mechanical durability. The ½‑inch threaded fitting allows insertion into in‑line “T” fittings or the flow cell. Unique to Hanna’s design, this probe registers a 0 mV value at pH 4 instead of pH 7; if the probe’s internal glass cracks and shorts, the controller detects this anomaly, triggers an alarm, and halts dosing. This safeguards against potentially dangerous chemical overfeeding. Its fast‑response pH glass is optimized for low‑conductivity water, making the BL100 effective even in therapy pools with specialized mineral compositions. Operators appreciate the combined pH and temperature sensing, reducing hardware requirements and simplifying installation.

Safety Features for Reliable Long‑Term Operation

Safety in water treatment systems is paramount, and the BL100 incorporates multiple safeguards to protect users, equipment, and facilities. The acid tank level/flow switch input connects to optional level controllers or flow sensors, disabling dosing when chemical reservoirs are empty or circulation pumps are inactive. Alarms can be individually enabled or disabled, and the overdosing protection mechanism automatically halts operation if set points cannot be achieved within a programmed interval. A SPDT 2.5A / 230 VAC alarm relay output allows integration with external alert systems, ensuring facility managers are immediately informed in the event of failure. Combined environmental protections such as IP65 casing, tolerance for ambient temperatures from 0–50°C, and operation in humidity levels up to 95% non‑condensing make it suitable for humid indoor spa enclosures or outdoor pool pump rooms. The BL100’s ability to adapt safety measures to unique operational requirements is a major reason for its adoption in high‑value resort and hospitality settings.

Technical Specifications for Professional Deployment

The BL100 delivers professional‑grade measurement performance with a pH range of 0.00–14.00 pH and accuracy of ±0.10 pH at 25°C, alongside temperature ranges from −5.0 to 105°C (23.0 to 221.0°F) at ±0.5°C accuracy. Automatic temperature compensation ensures readings remain precise regardless of seasonal or operational conditions. Calibration options include automatic one‑ or two‑point with standard buffers (4.01, 7.01, 10.01 pH) and single‑point adjustable process calibration. The compact physical design (90 × 142 × 80 mm) and weight of 910 g allow space‑saving wall mounting even in cramped technical rooms. Power supply flexibility (100–240 VAC, 50/60 Hz) means compatibility with global electrical standards, essential for installations across regions. Operators in municipal aquatic centers use the BL100 for its stable operation under diverse load conditions, while private pool owners benefit from the same industrial reliability scaled down to domestic applications. Available mounting kits make integration straightforward, with bundled accessories covering probes, installation hardware, chemicals, and manuals.

Application Scope from Domestic to Industrial

The versatility of the BL100 makes it suitable for a spectrum of operational environments: residential pools, hotel spas, hydrotherapy centers, municipal water leisure facilities, and even specific industrial process water systems where pH must be tightly regulated. The system’s proportional pump control saves chemicals and reduces operational costs, which is key for large facilities running continuously. In small domestic pools, it eliminates daily manual pH adjustments, freeing up owner time and reducing water chemistry fluctuations. For international buyers, tpt24.com offers the Hanna BL100 with guaranteed authenticity, quality assurance, and fast global shipping. This comprehensive distribution service, paired with the unit’s installation options—inline mounting, flow‑cell assembly, and bypass loop—ensures that customers from diverse geographies can deploy the BL100 under varying infrastructural conditions.

Ordering Options and Installation Accessories

The BL100 is available in three main configurations to suit different installation preferences. BL100‑00 includes the HI10053 probe, pH buffer solutions, power cable, and documentation; BL100‑10 adds an inline mounting kit with saddles for 50 mm PVC pipes, aspiration and injection tubing, filters, and valves; BL100‑20 offers a flow‑cell mounting kit with panel assemblies, tubing adapters, and extended chemical tubing lengths for more complex setups. All variants include full certification and quality assurance documentation. These thoughtful packages simplify procurement for both small pool maintenance businesses and large contractors servicing water parks or spas. The precision engineering, built‑in pump, and advanced sensing technology position the Hanna BL100 among the most reliable and cost‑effective pH control solutions globally—and tpt24.com remains the premier source for genuine units and professional support.