Ammonia nitrogen (conductivity method) water quality online automatic monitoring instrument

NegotiableUpdate on 02/28

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The principle of GR-NH3-N (conductivity method) ammonia nitrogen water quality online automatic monitoring instrument is to convert ammonium ions into ammonia molecules, and under certain conditions, blow out the ammonia nitrogen in the water sample with gas, absorb it with boric acid, and at the same time, according to the change in conductivity, it is proportional to the amount of ammonia nitrogen blown out within a certain concentration range. It has the advantages of simple operation, fast, accurate, and high sensitivity, and is suitable for online detection.

Product Details

The GR-NH3-N (conductivity method) ammonia nitrogen water quality online automatic monitoring instrument consists of a sampling system, a metering system, a digestion system, an absorption system, a detection system, and a programmable control system. The monitoring device collects water samples through an automatic sampling system, and after passing through a high-precision photoelectric sensing measurement system, the water samples are transported to the digestion system. The digestion system automatically adds a set amount of digestion solution, and after high-temperature digestion, ammonia gas is blown out. Add a certain amount of absorption solution to the absorption system to absorb the ammonia gas blown out. The detection system detects the electromotive force at both ends of the electrode, and the automatic controller system calculates the concentration value of ammonia nitrogen.

Can achieve the functions of standard sample verification and spiked recovery;

Capable of remote transmission control, bidirectional communication, and other functions;

Total amount of liquid for a single sample<8>8>

Equipped with automatic protection and cleaning functions for power and water outages;

Equipped with measurement over limit alarm function, supporting remote setting of over limit values;

Adopting high-resolution color touch screen, easy to operate and rich in information;

High precision infrared visible photoelectric non-contact measurement system, with high measurement accuracy and high operational reliability;

Through independently designed sampling pipelines, there are independent pipelines for sampling, quantification, liquid discharge, and each reagent,

Avoid measurement errors caused by pollution.

project	Technical Requirements
analytical method	electrochemical method
measurement range	0 - 4mg/L， Segmentable, expandable, and customizable
zero drift	≤±0.02mg/L
Span Drift	≤±5%
Minimum detection limit	0.1 mg/L
Resolution	0.01mg/L
accuracy	≤±3%
repetitiveness	≤2%
spike recovery rate	90%-110%
measurement period	Minimum measurement cycle of 20 minutes
Measurement Mode	(1min~9999min) Any adjustable time interval mode and hourly measurement mode
calibration cycle	(1 day to 99 days) Adjustable at any interval and any time
maintenance cycle	Usually once a month, about 30 minutes each time
signal output	RS-485 digital and 4-20mA analog output
human-computer interaction	HMI high-resolution color touch screen Chinese interface command input
external power supply	220VAC，50Hz，5A
environmental adaptability	Temperature (0-40) ℃; Humidity ≤ 90% (non condensing)
Overall dimensions	310mm254mm524mm