Hanna GroLine HI981413-00 Nutrient Dosing System - Automated EC/TDS Control for Hydroponics
The Hanna GroLine HI981413-00 Nutrient Dosing System is engineered for maintaining precise fertilizer concentration in hydroponic nutrient solutions and irrigation water. This automated controller continuously monitors EC/TDS levels and doses nutrients automatically to maintain optimal growing conditions. Simply insert the probe and injection valve in-line with your recirculation pump, provide the chemical to be dosed, and let the system maintain perfect nutrient levels 24/7.
Complete Automated Dosing Solution
The HI981413-00 arrives as a complete system with built-in peristaltic pump, HI30033 EC/TDS/temperature probe, calibration solutions, and everything needed for immediate installation. Perfect for small to medium hydroponics systems, greenhouses, and irrigation applications where consistent nutrient concentration is critical for successful plant propagation and growth.
Key Benefits
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Automated Nutrient Control: Maintains precise EC/TDS levels without manual intervention
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Built-In Peristaltic Pump: Powerful stepper motor design with no gears or brushes for long life
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Proportional Control: Advanced dosing algorithm prevents overshooting set points
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Adjustable Flow Rate: 0.5 to 3.5 L/h (0.13 to 0.92 gal/h) for precise dosing control
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Multicolored LCD Display: Green for normal operation, red for alarm states
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IP65 Rated Enclosure: Wall-mounted design withstands humid grow environments
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Multiple Configurations: Easy integration into existing setups
Advanced Dosing Pump Features
Peristaltic Dosing Pump
The powerful built-in peristaltic pump uses a stepper motor which does not have any gears or brushes, providing long operational life with minimal maintenance. The pump is integrated directly into the IP65-rated wall-mounted enclosure for a compact, all-in-one solution.
Automatic Proportional Pump Control
The peristaltic dosing pump can be controlled by simple on/off or more advanced proportional control which helps prevent overshooting of the set point. This intelligent dosing algorithm ensures smooth, gradual adjustments to nutrient concentration without sudden spikes.
Adjustable Flow Rate
The dosing pump flow rate is adjustable from 0.5 to 3.5 L/h (0.13 to 0.92 gal/h), allowing for better control in maintaining a desired set point. Manual control mode enables pump priming for initial setup and maintenance.
Tank Level/Flow Switch Input
A connection to an optional level controller or flow switch provides safety interlocks. This galvanically isolated input can be used to disable the dosing pump when there is no chemical left in the reservoir tank or there is no flow due to the recirculation pump being turned off.
Intelligent Monitoring & Alarms
Multicolored LCD Display
The multi-colored LCD provides instant visual status feedback. The display shows green when operating normally and red while in an alarm state, allowing you to assess system status from across the room.
Programmable Alarm System
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High/Low Alarms: Triggered after 5 seconds of consecutive readings over/under threshold values
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Level Alarm: Alerts when chemical reservoir is empty (with optional level controller)
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Overtime Protection: Adjustable from 1 to 180 minutes or off to prevent excessive dosing
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Alarm Relay Output: SPDT 2.5A / 230 VAC for external alarm devices
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Color-Coded Backlight: Intuitive red, light green, and green color system
HI30033 EC/Temperature Probe
The included HI30033 amplified probe incorporates both EC (TDS) and temperature sensors in a single waterproof Quick Connect DIN connector. The probe features:
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PVDF Body: Durable polyvinylidene fluoride construction resistant to chemicals
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1/2" Threaded Fitting: For insertion into in-line "T" fitting or flow cell
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Quick Connect DIN: Waterproof seal reduces electrical noise in humid environments
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Galvanically Isolated: Prevents ground loop interference
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Amplified Design: Reduces signal degradation over cable length
Technical Specifications
EC/TDS Measurement
| Parameter |
Specification |
| EC Range |
0.00 to 10.00 mS/cm |
| EC Resolution |
0.01 mS/cm |
| EC Accuracy (@25°C) |
±2% F.S. |
| TDS Range |
0-4500 ppm (0.45 CF) / 0-9900 ppm (0.99 CF) |
| TDS Resolution |
1 ppm |
| TDS Accuracy (@25°C) |
±2% F.S. |
| TDS Conversion Factor |
Selectable from 0.45 to 0.99 |
Temperature Measurement
| Parameter |
Specification |
| Range |
-5.0 to 105.0°C / 23.0 to 221.0°F |
| Resolution |
0.1°C / 0.1°F |
| Accuracy (@25°C) |
±0.5°C / ±0.9°F |
| Compensation |
Automatic |
| Temperature Coefficient |
β adjustable 0-2.4%/°C (default 1.9%/°C) |
Calibration Options
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EC User Calibration: Automatic one-point with standard solution (1.413 or 5.000 mS/cm)
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Process Calibration: Single point, adjustable (±0.50 mS/cm around measured value)
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TDS Calibration: Through EC calibration
System Specifications
| Specification |
Detail |
| Model |
HI981413-00 |
| Pump Flow Rate |
0.5 to 3.5 L/h (0.13 to 0.92 gal/h), adjustable |
| Pump Control |
On/off or proportional with manual priming mode |
| External Event Input |
Level controller or flow switch (galvanically isolated) |
| Alarm Relay Output |
SPDT 2.5A / 230 VAC |
| Power Supply |
100-240 VAC, 50/60 Hz |
| Power Consumption |
15 VA |
| Enclosure Rating |
IP65 (wall-mounted with built-in pump) |
| Operating Environment |
0-50°C (32-122°F); RH max 95% non-condensing |
| Dimensions |
90 x 142 x 80 mm (3.5 x 5.6 x 1.8") |
| Weight |
910 g (32 oz) |
What's Included
- HI981413-00 nutrient dosing controller with built-in peristaltic pump
- HI30033 EC/TDS/temperature probe with Quick Connect DIN connector
- Conductivity calibration solution sachets (3 x 20 mL)
- Power connection cable (100-240 VAC)
- Instruction manual
- Quality certificates for instrument and probe
Applications
- Small to medium hydroponic systems
- Greenhouse nutrient management
- Aquaponic systems
- Irrigation water fertilization
- Nursery and propagation facilities
- Research and educational applications
- Commercial grow operations
Why Choose the GroLine HI981413-00?
Engineered by Hanna Instruments specifically for automated nutrient management, the HI981413-00 delivers professional-grade dosing control in a compact, wall-mounted package. The combination of proportional pump control, programmable alarms, and robust construction makes it ideal for growers who demand precision and reliability. The built-in peristaltic pump eliminates the need for external dosing equipment, while the IP65-rated enclosure ensures long-term durability in humid grow environments.
Manufacturer: Hanna Instruments (GroLine Series)
Country of Origin: Romania
SKU: HI981413-00
