Product Description
Hanna GroLine HI981412-00 pH Dosing System - Automated pH Control for Pools, Aquaculture & Water Treatment
The Hanna GroLine HI981412-00 pH Dosing System is a professional-grade automated pH controller engineered for precise pH management in swimming pools, aquaculture, hydroponics, and water treatment applications. This complete system continuously monitors pH levels and automatically doses acid or base to maintain optimal water chemistry 24/7, eliminating manual testing and adjustment while ensuring consistent, accurate pH control.
Complete Automated pH Control Solution
The HI981412-00 arrives as a complete system with built-in peristaltic dosing pump, HI10063 industrial pH probe, controller, and all necessary components for immediate installation. Simply mount the controller, install the probe in-line, connect to your chemical reservoir, program your setpoint, and let the system maintain perfect pH automatically.
Key Benefits
Automated pH Control: Continuous monitoring and automatic dosing—no manual testing required
Built-In Peristaltic Pump: Powerful stepper motor design with no gears or brushes for long life
Proportional Control: Advanced dosing algorithm prevents overshooting set points
Adjustable Flow Rate: 0.5 to 3.5 L/h (0.13 to 0.92 gal/h) for precise dosing control
Industrial HI10063 Probe: Rugged pH probe designed for continuous monitoring
Programmable Alarms: Visual and audible alerts for out-of-range conditions
IP65 Rated Enclosure: Wall-mounted design withstands humid environments
24/7 Operation: Built for continuous operation in demanding commercial applications
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 features advanced proportional control which helps prevent overshooting of the pH set point. This intelligent dosing algorithm ensures smooth, gradual adjustments without sudden pH swings that can stress aquatic life or damage equipment.
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 precise control in maintaining your desired pH setpoint. 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 circulation 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
High/Low pH Alarms: Triggered after 5 seconds of consecutive readings over/under threshold values
Level Alarm: Alerts when chemical reservoir is empty (with optional level controller)
Overtime Protection: Adjustable from 1 to 180 minutes or off to prevent excessive dosing
Alarm Relay Output: SPDT 2.5A / 230 VAC for external alarm devices or system shutdown
Color-Coded Backlight: Intuitive red, light green, and green color system
HI10063 Industrial pH Probe
The included HI10063 is an industrial-grade pH probe designed for continuous monitoring in demanding applications. Key features include:
Rugged Construction: Built to withstand harsh pool, aquaculture, and industrial environments
Gel-Filled Reference: Provides stable, accurate readings with minimal maintenance
Quick Connect DIN: Waterproof seal reduces electrical noise in humid environments
Galvanically Isolated: Prevents ground loop interference
Wide pH Range: 0 to 14 pH for diverse water treatment applications
Temperature Compensation: Automatic for accurate readings across temperature variations
Applications
Swimming Pool pH Control
Maintain optimal pH (7.2-7.8) automatically in residential and commercial pools. Prevents corrosion, scaling, and ensures effective chlorine sanitization while reducing chemical costs and labor.
Aquaculture pH Management
Critical for fish farms, hatcheries, and aquaponics systems where stable pH is essential for aquatic health. Automated control prevents pH swings that stress or harm fish and other aquatic organisms.
Hydroponic Nutrient Solutions
Maintains optimal pH for nutrient uptake in hydroponic and greenhouse systems. Consistent pH ensures maximum nutrient availability and plant health.
Water Treatment Plants
Automates pH adjustment in municipal water treatment, wastewater treatment, cooling towers, and industrial process water applications.
Technical Specifications
pH Measurement
Parameter
Specification
pH Range
0.00 to 14.00 pH
pH Resolution
0.01 pH
pH Accuracy (@25°C)
±0.05 pH
Calibration
Automatic 1 or 2-point (pH 4.01, 7.01, 10.01)
Temperature Compensation
Automatic, 0 to 50°C
System Specifications
Specification
Detail
Model
HI981412-00
Included Probe
HI10063 industrial pH probe
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 / 2 lbs)
What's Included
HI981412-00 pH dosing controller with built-in peristaltic pump
HI10063 industrial pH probe with Quick Connect DIN connector
pH calibration buffer solutions
Power connection cable (100-240 VAC)
Installation hardware
Instruction manual
Quality certificates for instrument and probe
Installation & Setup
The system is designed for straightforward installation:
Mount the controller in a suitable location near your water system
Install the HI10063 probe in-line with water flow or in a flow cell
Connect the dosing pump tubing to your acid or base chemical reservoir
Connect the injection point to your water system
Calibrate the pH probe with buffer solutions
Program your desired pH setpoint and dosing parameters
The system automatically maintains your target pH 24/7
Professional installation recommended for commercial applications.
Maintenance
Regular maintenance ensures optimal performance:
Calibrate the HI10063 probe monthly with pH 4.01, 7.01, and 10.01 buffer solutions
Check dosing pump operation and tubing condition
Inspect and refill chemical reservoirs as needed
Clean the probe periodically to remove deposits
Verify alarm functions are operating correctly
Why Choose Automated pH Dosing?
Manual pH testing and adjustment is time-consuming, inconsistent, and prone to human error. The HI981412-00 automated dosing system eliminates these problems by continuously monitoring pH and making precise adjustments 24/7. Benefits include:
Consistent water chemistry for optimal conditions
Reduced chemical waste through precise dosing
Prevention of equipment damage from pH extremes
Labor cost savings—no manual testing or dosing required
Improved safety for aquatic life in pools and aquaculture
Enhanced equipment longevity through proper pH maintenance
Why Choose the GroLine HI981412-00?
Engineered by Hanna Instruments specifically for automated pH management, the HI981412-00 delivers professional-grade dosing control in a compact, wall-mounted package. The combination of proportional pump control, industrial-grade HI10063 probe, programmable alarms, and robust IP65 construction makes it ideal for commercial pools, aquaculture operations, and industrial water treatment applications where reliability and precision are essential.
Manufacturer: Hanna Instruments (GroLine Series)
Country of Origin: Romania
SKU: HI981412-00
Note: Chemical dosing solutions (acid or base) sold separately. Regular calibration recommended for optimal accuracy.
