tih203 nitrite ambient air online analyzer-j9九游会官方

application area

the tih203 nitrite ambient air online analyzer is designed for online monitoring of nitrite concentration in ambient air and air pollution sources.

detection principle

nitrite in ambient air is absorbed by the absorption solution. in an acidic medium and in the presence of sulfanilic acid, it reacts with hydrochloric acid-naphthyl ethylenediamine to form a colored compound. the absorbance of this substance is proportional to the concentration of nitrite, and the absorbance is measured at a specific wavelength.

features

the absorption module and reaction module undergo constant temperature treatment.

calibration can be performed using gaseous or liquid nitrite standard samples.

the pre-processing unit is designed for low maintenance, with a maintenance cycle exceeding six months.

high selectivity in chemical reaction, and a long optical path flow cell ensure a low detection limit.

it employs a separation spiral tube trap design, and the gas-liquid separation device achieves the function of separating gas and liquid.

embedded control system with programmable software design; users can configure it according to various monitoring requirements.

equipped with intelligent functions such as automatic zero adjustment, calibration, measurement, cleaning, maintenance, and recovery. simple operation and maintenance without the need for professional training.

technical specifications

detection principle: long path absorption spectrophotometry .

detection range: 2 ppt ~ 2 ppm, additional ranges available .

detection duration: 1 ~ 3 minutes (depending on the detection range) .

signal output: rs232 / rs485

ambient temperature: 5 ℃ ～ 40 ℃

power requirements: 110 / 220 vac, 50±0.5 hz

instrument weight: approximately 10 kg (excluding reagents) .

instrument dimensions: approximately 450 mm (w) x 560 mm (h) x 150 mm (d)