Hanna HI981413-00 GroLine Nutrient Dosing System

Description

Precision Nutrient Management For Hydroponic Growth

The Hanna HI981413‑00 GroLine Nutrient Dosing System is a specialized EC/TDS controller with an integrated peristaltic dosing pump, engineered to maintain fertilizer concentration in nutrient solution for hydroponics and irrigation systems with exact precision. It ensures plants receive optimal nutrients by continuously monitoring electrical conductivity (EC) which is directly correlated to dissolved salt content in water. Its primary application is in hydroponics, drip irrigation, greenhouse nutrient dosing, and recirculating agricultural systems, where maintaining consistent nutrient strength is critical for crop quality and yield. Featuring a built‑in HI30033 amplified EC/TDS/temperature probe, the system measures solution parameters and applies nutrients automatically via advanced on/off or proportional pump control. This controller can integrate seamlessly into nutrient reservoirs or operate as part of modular setups—often paired with pH dosing systems like the HI981412—to maintain complete nutrient balance. The unit’s wall‑mounted IP65‑rated casing makes it suitable for demanding grow‑room conditions, offering durability and splash resistance.

Advanced Pump Control With Adjustable Flow Rate

At the heart of the HI981413‑00 is a powerful, gearless stepper motor‑driven peristaltic pump. This design produces minimal wear, requires little maintenance, and ensures accurate dosing over extended periods. Pump operation can be configured in on/off mode, activating at specific EC or TDS set points with adjustable hysteresis, or in proportional mode, where dosing rate is scaled to the deviation from target levels, preventing overshooting and nutrient waste. One of its key engineering advantages is the adjustable flow rate, ranging from 0.5 to 3.5 liters/hour (0.13 to 0.92 gallons/hour), enabling precise nutrient dosing for systems of varying sizes—from small home hydroponics setups to commercial greenhouse installations. The system also includes manual pump priming for quick startup and maintenance, ensuring smooth operation. With overfeed protection through an overtime safety timer, growers can trust that dosing remains controlled even in fault scenarios, safeguarding crops from nutrient burn.

Intelligent Monitoring And Intuitive Alarm System

The HI981413‑00 features a programmable alarm system designed for safety and operational awareness. A multi‑colored LCD display offers instant status visibility — green for normal operation, red for alarm conditions, and yellow/light green for warning or transitional states. High and low EC/TDS alarms can be enabled or disabled depending on grower preference, triggered after five seconds of consecutive readings beyond thresholds. A level alarm function warns when nutrient supply in the dosing reservoir runs low, integrating with external level controllers or flow switches to halt dosing automatically. The SPDT 2.5A / 230VAC alarm relay output enables external signaling or shutdowns, further enhancing system safety. For mission‑critical agricultural environments, these features provide protection against nutrient imbalance, ensuring plant health and optimizing yields. Additionally, the alarm manager is supplemented by overtime protection ranging from 1 to 180 minutes, preventing pump operation beyond safe limits during abnormal conditions.

High Accuracy EC, TDS, And Temperature Measurement

Accurate nutrient measurement lies at the core of the HI981413‑00’s performance profile. EC measurement covers a 0.00 to 10.00 mS/cm range with 0.01 mS/cm resolution and accuracy of ±0.10 mS/cm from 0.00 to 5.00 mS/cm, and ±0.20 mS/cm from 5.00 to 10.00 mS/cm at 25°C. The unit converts EC to TDS using a selectable factor from 0.45 to 0.99, supporting ranges like 0–4500 ppm (factor 0.45) up to 0–9900 ppm (factor 0.99) with 1 ppm resolution and ±2% full scale accuracy. Automatic temperature compensation ensures stable readings across solution temperatures from –5.0 to 105.0°C (23.0 to 221.0°F). Temperature accuracy is ±0.5°C with 0.1°C resolution. Calibration is straightforward — a single‑point automatic user calibration with standard solutions (1.413 or 5.000 mS/cm) and process calibration adjustable ±0.50 mS/cm around measured value. These specifications make the HI981413‑00 suitable for professional agricultural labs, research facilities, and commercial growers who require highly consistent nutrient monitoring.

Robust Construction And Environmental Resilience

Durability in humid, nutrient‑rich grow‑room environments is ensured through the HI981413‑00’s IP65‑rated wall‑mount casing. This water‑resistant enclosure protects electronics and mechanical components from splashes, corrosion, and dust ingress. The built‑in pump and controller weigh just 910 grams (32 oz), with compact dimensions of 90 × 142 × 80 mm (3.5 × 5.6 × 1.8 in.), allowing installation in tight spaces. Power is supplied via a universal input of 100–240 VAC at 50/60 Hz, consuming a modest 15 VA. The operating environment supports temperatures from 0 to 50°C (32 to 122°F) with up to 95% RH non‑condensing humidity, making the system deployable in a broad range of agricultural climates and indoor grow settings. Mechanical reliability is further enhanced by the absence of wear‑prone gears or brushes in the pump, reducing maintenance intervals and ensuring long‑term operational stability.

HI30033 EC/TDS/Temperature Probe Integration

Supplied with the HI30033 amplified EC/TDS/Temperature probe, the HI981413‑00 benefits from high measurement stability and galvanic isolation to reduce electrical noise in humid environments. The probe incorporates stainless steel pins, a PVDF body, and threaded fittings (½″ NPT for in‑line mounting, ¾″ NPT top thread) for versatile installation options including flow cells or reservoir “sample pots.” It operates within a –5 to 60°C temperature range at pressures up to 3 bar (43.5 psi) and connects via a Quick Connect DIN connector for fast, reliable setup. With its 2‑meter cable length, the probe can be mounted conveniently in a range of system layouts. Regular calibration with provided conductivity standard solutions ensures measurement fidelity over time. For more complex installations, the HI981413 is available in kit configurations (‑10 and ‑20 variants) that include mounting accessories, aspiration/dispensing tubing, valves, and flow cell assemblies.

Flexible Installation And Modular Control Options

The HI981413‑00 is designed for seamless inclusion in diverse agricultural operations. Whether used as a stand‑alone nutrient dosing controller for small hydroponic reservoirs or integrated into multi‑parameter control systems, installation is straightforward. Kits offer in‑line mounting for piping diameters around 50 mm or flow‑cell configurations for closed circulation systems. In larger setups, combining the HI981413‑00 with a separate pH dosing controller, such as the HI981412 GroLine, achieves precise pH and EC balance for optimal nutrient absorption. The compact nature of the system means it can be retrofitted easily into existing irrigation infrastructure without disrupting operations. Its compatibility with both drain‑to‑waste and recirculating designs makes it highly versatile across commercial greenhouses, vertical farms, and research facilities. Moreover, tpt24.com—the world’s leading online store for this product—offers guaranteed authenticity, superior quality assurance, and worldwide delivery to ensure every grower, regardless of location, can implement this advanced nutrient dosing technology confidently.

Application Benefits And Operational Efficiency

The HI981413‑00 directly addresses the challenges of nutrient management in hydroponic and irrigation systems by delivering precise, automated control over fertilizer dosing, minimizing human error and ensuring crop consistency. Key benefits include reduced nutrient waste, prevention of overfeeding, and improved plant health leading to higher yields and quality. In small hydroponics setups, the system offers an affordable, compact solution with professional‑grade accuracy. In commercial agriculture, it serves as a critical link in automation, integrating sensor feedback with active dosing to maintain correct EC/TDS levels 24/7. The intuitive interface allows even novice operators to manage nutrient dosing effectively, while advanced settings cater to technical professionals overseeing complex agricultural networks. Operational resilience, coupled with the safety features and robust build, make it a trusted choice for long‑term agricultural productivity. As tpt24.com guarantees authenticity and worldwide delivery, growers globally can adopt the HI981413‑00 for dependable nutrient control without concern for counterfeit or inferior products.