The HI 739 is a hand-held fluoride high range water quality meter from Hanna Instruments. It is used to measure fluoride concentration in water. The meter uses electrochemical measuring principles and can measure fluoride concentration from 0.000 - 10.00 mg/L.
The Hanna Instruments HI 739 is a portable meter designed for measuring fluoride concentration in water and wastewater samples. It utilizes the SPADNS method and includes a light source and detector for accurate readings. The device comes supplied with reagents, cuvettes, syringes, and a battery, along with a dust cover and instruction manual.
| Range | 0.0 to 20.0 ppm |
|---|---|
| Resolution | 0.1 ppm |
| Accuracy | ±0.5 ppm ±5 % of reading @ 25 °C / 77 °F |
| Light Source | Light Emitting Diode @ 575 nm |
| Light Detector | Silicon Photocell |
| Method | Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, SPADNS method |
| Environment | 0 to 50 °C (32 to 122 °F); max 95% RH non-condensing |
| Battery Type | 1 x 1.5V AAA |
| Dimensions | 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5") |
| Weight | 64 g (2.25 oz.) |
The measurement range is 0.0 to 20.0 ppm.
The meter will display a 'Battery low' warning, indicating the battery must be replaced soon.
The instrument automatically shuts down after 10 minutes of non-use to save the battery.
The accuracy is ±0.5 ppm ±5% of reading at 25 °C / 77 °F.