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GroLine pH Dosing System – HI981412
A horticulturists’s friend, the HI981412 pH Controller and Dosing Pump system is engineered to maintain the pH of nutrient solutions and irrigation water. Simply insert the probe and injection valve in-line with the recirculation pump and provide the chemical to be dosed.
- Available in multiple configurations
- Programmable alarm system and multicolored LCD display
- Perfect for small hydroponics systems
Peristaltic Dosing Pump
The powerful built-in peristaltic pump uses a stepper motor which does not have any gears or brushes, for a long life with minimal maintenance.
Automatic Proportional Pump Control
The peristaltic dosing pump is controlled by a simple on/off option, or through an advanced proportional control to help prevent overshooting the set point.
Adjustable Flow Rate
The dosing pump flow rate is adjustable from 0.5 to 3.5L/h, to better maintain a desired set point.
Acid Tank Level/Flow Switch Input
A connection to an optional level controller or flow switch that can be used to disable the dosing pump when the chemical reservoir tank is empty or there is no flow when the pump is turned off.
Multicolored LCD Display
A multi-colored LCD shows the status of the controller. The display is green during normal operation or red if an alarm is triggered.
Quick Connect Probe Input
The Quick Connect DIN connector creates a waterproof seal with the meter, reducing electrical noise issues with the connection caused by humid environments.
GroLine pH/Temperature Probe
The HI981412 uses the HI10063 amplified probe that incorporates both pH and temperature sensors and connects to the controller with a single waterproof Quick Connect DIN connector.
- Built-in amplifier
- PVDF body
- 1/2” threaded fitting for insertion to an in-line “T” fitting or the flow cell
Specifications
| SKU | HI981412-web |
| Name | GroLine pH Dosing System – HI981412 |
| pH Range | 0.00 to 14.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.10 pH |
| pH Calibration | user calibration: automatic, one or two-point with buffer solution (4.01, 7.01, 10.01 pH) process calibration: single point, adjustable (±0.50 pH around measured pH) |
| Temperature Range | -5.0 to 105°C (23.0 to 221.0°F) |
| Temperature Resolution | 0.1°C (0.1°F) |
| Temperature Accuracy | ±0.5°C (±0.9°F) |
| Voltage Output | 15 VA |
| Display | SPDT 2.5A / 230 VAC |
| Power Supply | 100-240 VAC, 50/60 Hz |
| Environment | 0 to 50 °C (32 to 122 °F); max 95% RH non-condensing |
| Dimensions | 90 x 142 x 80 mm (3.5 x 5.6 x 1.8 in.) |
| Weight | 910 g (32 oz.) |
Ordering Info
HI981412-00 is supplied with HI10063 pH/temperature probe, 4.01 pH buffer solution, 20 mL (3), 7.01 pH buffer solution, 20 mL (3), power connection cable, instruction manual and quality certificates for instrument and probe. HI981412-10 (with in-line mounting kit) is supplied with HI981412 controller, HI10063 pH/temperature probe, controller aspiration filter, controller injector, 1/2” thread, saddle for Ø 50 mm pipe (2), aspiration PVC tube (flexible) (5 m), dispensing PE injection tube (rigid) (5 m), 4.01 pH buffer solution, 20 mL (3), 7.01 pH buffer solution, 20 mL (3), power connection cable, instruction manual and quality certificates for instrument and probe. HI981412-20 (with flow-cell mounting kit) is supplied with HI981412 controller, HI10063 pH/temperature probe, flow cell for HI981412/BL101, mounting panel assembly for HI981412/BL101, controller aspiration filter, controller injector, 1/2” thread, saddle for Ø 50 mm pipe (3), aspiration PVC tube (flexible) (5 m), dispensing PE injection tube (rigid) (15 m), tubing adapter 1/2” – 6 mm with racord (2), 4.01 pH buffer solution, 20 mL (3), 7.01 pH buffer solution, 20 mL (3), power connection cable, instruction manual and quality certificates for instrument and probe.
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