Nitrite Photometer with 585 nm LED
Nitrites are an intermediate product in the nitrogen cycle and are produced ammonia oxidation with water, or even originate in industrial waste directly. They must not be present in drinking water.
Nitrites can be harmful to aquatic organisms even in low concentrations and for this reason, they are closely monitored in aquaculture facilities. In cooling towers, however, an adequate amount of nitrites is necessary to prevent corrosion.
In high concentrations, they can be harmful to the environment and to humans. They are, therefore, normally monitored to verify the quality of water for domestic use, as well as lakes and ponds.
HI 93707 and HI 93708 show the nitrite concentration directly in the 0.00 to 0.35 mg/L and 0 to 150 mg/L ranges, with increments of 0.01 mg/L and 1 mg/L, respectively.
They can also determine sodium nitrite concentrations by simply multiplying the readings by 4.93 (HI 93707) or by 1.5 (HI 93708). With HI 93708 it is also possible to determine nitrogen nitrite concentrations by dividing the readings by 3.29.
HI 93708 is supplied with 2 cuvets, battery and instructions.
|Range||0 to 150 mg/L|
|Accuracy||±4 mg/L ±4% of reading|
|Light Source||LED 585 nm|
|Light Life||Life of the instrument|
|Light Detection||Silicon Photocell|
|Battery Type / Life||1 x 9V / approx. 40 hours of continuous use; auto-off after 10 minutes of non use|
|Environment||0 to 50°C (32 to 122°F); RH max 95% non-condensing|
|Dimensions||180 x 83 x 46 mm (7.1 x 3.3 x 1.8″)|
|Weight||290 g (10 oz.)|
|Method||Adaptation of the ferrous Sulfate method; The reaction between nitrite and the reagent causes a greenish-brown tint in the sample|
|HI 93703-50||Solution for Cleaning Cuvets|
|HI 731321||Glass Cuvet for HI 937xx & HI 832xx Series Meters|
|HI 731325||Cuvet Cap Turbidity Meters & HI 937xx Series Meters|
|HI 710009||Shockproof Boot, Blue|
|HI 710010||Shockproof Boot, Orange|
|HI 731318||Tissue for Wiping Cuvets|
|Reagents & Standards|
|HI 93707-01||Nitrite LR, diazotization method (100 Tests)|
|HI 93707-03||Nitrite LR, diazotization method (300 Tests)|
|HI 93708-01||Nitrite HR, ferrous sulphate method (100 Tests)|
|HI 93708-03||Nitrite HR, ferrous sulphate method (300 Tests)|
|คู่มือภาษาไทยเครื่องโฟโตมิเตอร์-ไนไตรท์ (Nitrite Photometer 0-150 mg/L)|