HLNO3-1 typeNitrate nitrogen water qualityOnline monitoring analyzer

Working Principle:Using phenol disulfonic acid to react with nitrate ions in anhydrous conditions to generate nitrodisulfonic acid phenolIn alkaline solution, yellow compounds are generated, causing a change in the color of the mixture. The degree of color change in the solution is proportional to the nitrate nitrogen content of the water sample, and the nitrate nitrogen value of the water sample can be calculated by colorimetry.

performance parameters：test scope （0.2-50) mg/L has automatic range switching function, which can achieve automatic measurement of water samples with different concentrations.

Actual water sample measurement error±10％

zero drift±5％（≤0.02mg/ L）

Span Drift±8％

reproducibility±3%

test cycle≤25min

Interface output Standard configuration:RS232/RS485、 Two 4-20mA channels;

volume 550 * 390 * 830mm (length * width * height)

weight 35kg

Application fields:Water monitoring of natural environment in Rivers and Lakes

Environmental conditions:ambient temperature 5-40℃

relative humidity ≤85%

power supply voltage AC（220±22）V

voltage frequency （50±1）Hz

Instrument features:fully automatic operation

Having self diagnostic function

Low drug consumption, short preparation time

The amount of waste liquid in a single measurement is about6 milliliters

High definition touch screen display, easy to operate

After power failure, it has the functions of automatic startup and self-cleaning when receiving power

Long term self-control, low maintenance, and low operating costs

Fault alarm, easy to identify in a timely mannercause of failure、timelyTroubleshooting

equipdot matrix printerYes, yesmeasurementReal time data printing

Can set online automatic monitoring cycle and have online automatic calibration function; There are also specially designed for third-party operating companiesAutomatic calibration function for inspection.