HI-981413-20 with flow cell mounting kit is a Nutrient Dosing System engineered for maintaining the concentration of fertiliser in the nutrient solution used in hydroponics and irrigation water. The nutrient concentration in the water used for irrigation is critical for the successful propagation and growth of plants.
| Specifications | |
|---|---|
| EC | Range 0.00 to 10.00 mS/cm Resolution 0.01 mS/cm Accuracy (@25°C/77°F) ±2% F.S. Calibration user calibration: automatic, one-point with standard solution (1.41 or 5.00 mS/cm) Process calibration: single point, adjustable (±0.50 mS/cm around measured value) |
| TDS | Range 0 to 9900 ppm (depends on factor selection) Resolution 1 ppm Accuracy (@25°C/77°F) ±2% F.S. Calibration through EC calibration EC to TDS Conversion Factor TDS conversion factor selectable from 0.45 to 0.99 |
Temperature | Range -5.0 to 105.0°C (23.0 to 221.0°F) Resolution 1 ppm Accuracy (@25°C/77°F) ±2% F.S. |
| Temperature Compensation | automatic |
| Temperature Correction Coefficient | β can be set from 0%/°C to 2.4%/°C; default is 1.9%/°C |
| Dosing Control Type | On/Off control using adjustable set point (0.10 to 10.00 mS/cm; 50 to 5000 ppm) with adjustable hysteresis (0.05 to 0.50 mS/cm; 25 to 250 ppm) proportional control using adjustable set point (0.10 to 10.00 mS/cm; 50 to 5000 ppm) with adjustable proportional band (0.05 to 1.00 mS/cm; 25 to 500 ppm) |
| Dosing Control Activation | high or low mode operation high set point dosing is activated when reading is higher than set point low set point dosing is activated when reading is lower than set point (dose fertiliser) |
| Delay Start for Dosing | startup delay timer at power-on (0 to 600 sec.) |
| Maximum Dosing Time | overfeed protection using overtime safety timer (1 to 180 min. or off) |
| Probe Input | HI-30033 EC/TDS/Temperature probe with quick connect DIN connector - galvanically isolated |
| Power Supply | 100—240 VAC, 50/60 Hz |
| Power Consumption | 15 VA |
| Dimensions | 90 x 142 x 80 mm (3.5 x 5.6 x 1.8”) |
| Weight | 910 g (32 oz) |
HI-981413-20 with flow cell mounting kit is a Nutrient Dosing System engineered for maintaining the concentration of fertiliser in the nutrient solution used in hydroponics and irrigation water. The nutrient concentration in the water used for irrigation is critical for the successful propagation and growth of plants.
| Specifications | |
|---|---|
| EC | Range 0.00 to 10.00 mS/cm Resolution 0.01 mS/cm Accuracy (@25°C/77°F) ±2% F.S. Calibration user calibration: automatic, one-point with standard solution (1.41 or 5.00 mS/cm) Process calibration: single point, adjustable (±0.50 mS/cm around measured value) |
| TDS | Range 0 to 9900 ppm (depends on factor selection) Resolution 1 ppm Accuracy (@25°C/77°F) ±2% F.S. Calibration through EC calibration EC to TDS Conversion Factor TDS conversion factor selectable from 0.45 to 0.99 |
Temperature | Range -5.0 to 105.0°C (23.0 to 221.0°F) Resolution 1 ppm Accuracy (@25°C/77°F) ±2% F.S. |
| Temperature Compensation | automatic |
| Temperature Correction Coefficient | β can be set from 0%/°C to 2.4%/°C; default is 1.9%/°C |
| Dosing Control Type | On/Off control using adjustable set point (0.10 to 10.00 mS/cm; 50 to 5000 ppm) with adjustable hysteresis (0.05 to 0.50 mS/cm; 25 to 250 ppm) proportional control using adjustable set point (0.10 to 10.00 mS/cm; 50 to 5000 ppm) with adjustable proportional band (0.05 to 1.00 mS/cm; 25 to 500 ppm) |
| Dosing Control Activation | high or low mode operation high set point dosing is activated when reading is higher than set point low set point dosing is activated when reading is lower than set point (dose fertiliser) |
| Delay Start for Dosing | startup delay timer at power-on (0 to 600 sec.) |
| Maximum Dosing Time | overfeed protection using overtime safety timer (1 to 180 min. or off) |
| Probe Input | HI-30033 EC/TDS/Temperature probe with quick connect DIN connector - galvanically isolated |
| Power Supply | 100—240 VAC, 50/60 Hz |
| Power Consumption | 15 VA |
| Dimensions | 90 x 142 x 80 mm (3.5 x 5.6 x 1.8”) |
| Weight | 910 g (32 oz) |
