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Nitrate Range |
0.00 to 5.00 ppm (as NO3–) |
---|---|
Nitrate Resolution |
0.01 ppm |
Nitrate Accuracy |
±0.25 ppm ±2% of reading @ 25 °C (77 °F) |
Nitrate Method |
Colorimetric method. The reaction between nitrate and the reagent causes a pink/violet tint in the sample. This checker has been developed to work with seawater samples. |
Photometer/Colorimeter Light Source |
Light Emitting Diode @ 525 nm |
Photometer/Colorimeter Light Detector |
Silicon photocell |
Battery Type/Life |
1.5V AAA Alkaline |
Automatic Shut-Off |
After 10 minutes of non-use |
Environment |
0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing |
Weight |
64 g (2.3 oz) |
Dimensions |
86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) |
Ordering Information |
HI781 Checker HC is supplied with sample cuvettes with caps (2), nitrate reagent starter kit (reagents for 25 tests), filter holder, 10 mL syringe, 5 mL syringe with tip, mixing vial with cap, battery, and instructions. |
Notes |
Nitrite and Copper present will interfere with the measurement. |
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