HI 981404N-01
pH & TDS Continuous Indicator
- Two parameters with a single instrument
- Advanced electrode technology
- Simple operation and maintenance
- Supplied complete and ready to use
HI 981404N-01 is ideal for agricultural, horticultural and hydroponics applications where pH and TDS levels need to be continuously monitored for optimal plant growth. This instrument continuously monitors and displays the values of a solution on an easy to read set of LCD’s.
The HI 1286 gel filled pH electrode is replaceable and the BNC connector is protected behind a waterproof sleeve. The unique design of the electrode guarantees greater clogging resistance in fertilizer solutions with high concentrations of phosphate, nitrate, etc. TDS measurements are performed using the 4-4-2 conversion factor of 0.7 so you do not need to convert the readings.
This model is equipped with a grounding bar to ensure highly accurate pH readings and longer electrode life.
The HI 981404N-01 is compact and easy to install and use making it ideal for all continuous monitoring applications.
Order Information:
HI 981404N-01 (115V) and HI 981404N-02 (230V) are supplied complete with HI 1286 pH electrode, HI 7634 TDS probe, HI 1283 grounding bar, calibration solutions, screwdriver for calibration, 12 VDC adapter and instructions.
Specifications
| Range | pH | 0.0 to 14.0 pH |
| TDS | 0 to 1990 mg/L (ppm) | |
| Resolution | pH | 0.1 pH |
| TDS | 10 mg/L (ppm) | |
| Accuracy @ 20°C | pH | ±0.2 pH |
| TDS | ±2% F.S. | |
| Calibration | pH | manual at one or two points |
| TDS | manual at one point | |
| Temperature Compensation | automatic from 5 to 50°C (41 to 122°F) (TDS only) | |
| TDS Conversion Factor | 0.7 ppm = 1 µS/cm | |
| Probes | HI 1286 interchangeable pH electrode (included), HI 7634 TDS probe (fixed), HI 1283 grounding bar with 2 m (6.6’) cable (included) | |
| Power Supply | 12 VDC adapter (included) | |
| Environment | 0 to 50°C (32 to 122°F), RH 95% | |
| Dimensions | 165 x 110 x 35 mm (6.5 x 4.3 x 1.3”) | |
| Weight | 300 g (10.6 oz.) |
