- CAL CHECK™
- User calibration
- Certified calibration and verification standards
- BEPS (Battery Error Prevention System)
- TIMER function
- Auto shut-off
- GLP Features
Nitrates are present in nature as a result of decomposition of organic microorganisms or due to their use as fertilizers. Nitrates reduce to nitrites, which in turn easily combine to form substances dangerous to man.
A maximum level of 45 mg/L (ppm) is established as a worldwide guideline for nitrate concentration in water. In Europe, the maximum consented level of nitrates in potable water is 50.0 mg/L (ppm), while in the USA the EPA has established a guideline for the maximum level of nitrate—nitrogen of 10 mg/L (NO-3-N), which corresponds to 45.0 mg/L of nitrates.
The HI 96728 meter measures the nitrate content in water and wastewater.
This meter uses an exclusive positive-locking system to ensure that the cuvette is in the same place every time it is placed into the measurement cell.
| Range | 0.0 to 30.0 mg/L | |
| Resolution | 0.1 mg/L | |
| Accuracy | ±0.5 mg/L ±10% of reading@ 25°C | |
| Light Source | Tungsten lamp | |
| Light Detector | Silicon photocell with narrow band interference filter @ 525 nm | |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing | |
| Power Supply | (1) 9V battery | |
| Auto-off | After 10 minutes of non-use in measurement mode; after 1 hour of non-use in calibration mode; with last reading reminder. | |
| Dimensions | 192 x 104 x 69 mm (7.6 x 4.1 x 2.7") | |
| Weight | 360 g (12.7 oz.) | |
| Method | Adaptation of the cadmium reduction method. |
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