02 MDet-5000 THg Cold Atomic Absorption Heavy Metal Water Quality Online Analyzer

Product Overview

The Det-5000 THg Cold Atomic Absorption Heavy Metal Water Quality Online Analyzer is based on the "HJ 597-2011" national standard cold atomic absorption method. The mercury containing compounds in the water sample are reduced to elemental mercury by stannous chloride, and then elemental mercury in the water sample is blown off into mercury vapor by a carrier gas. The selective absorption of mercury atomic vapor is measured using a mercury lamp to calculate the THg content in the water sample.

The process of converting liquid-phase mercury into gas-phase mercury separates most non-volatile substances in water samples from mercury. At the same time, using a mercury lamp as the measurement light source greatly reduces interference during water sample measurement, thereby improving measurement accuracy.

The MDet-5000 THg cold atomic absorption heavy metal water quality online analyzer is widely used for total mercury monitoring in industrial production processes (such as electroplating, pharmaceuticals, chemical synthesis, etc.).

produceProduct features

High reliability, low maintenance required

The key components are all imported, with high reliability and long service life, suitable for long-term online monitoring;

The measurement module adopts photoelectric measurement method, and the detector does not directly contact the liquid, so there will be no situation where the measurement cannot be stopped;

The flow path is specially designed to be less prone to blockage.

Mature technological means to ensure high accuracy

Optoelectronic metrology uses special metrology algorithms to ensure accurate injection and small injection errors;

Unique bubble mixing technology ensures thorough mixing of samples and reagents during continuous injection;

Unique gas-liquid separation technology, fully considering the actual water sample situation on site, avoids interference from water sample chromaticity, turbidity, etc;

The patented annular multi-channel dilution injection technology enables the expansion of a large range ratio;

Mature measurement methods derived from national standards have been extensively applied to ensure the reliability of measurements.

Multiple practical functions, providing humanized operation

Automatic leakage alarm function, when reagent leakage occurs, the instrument self checks and alarms, prompting the user to perform maintenance;

Automatic handling of abnormal states. When an abnormal power outage occurs during operation, the instrument will self diagnose the abnormal state and clean the flow path to restore it to the waiting state for sample preparation when power is restored next time;

The instrument is easy to operate, with a full touch screen control panel and friendly software interface that provide rich information prompts. The software operation is simple and easy to understand;

Equipped with multi-level management permissions, password settings, and screen digital locks to prevent accidental operations by others.

Technical Specifications

Range: 0~0.2mg/L (can be expanded according to requirements)

Uncertainty: ± 5%

Reproducibility: ± 5%

Measurement interval: 1 hour

Reagent dosage: about 250 pieces/set, shelf life of 1 month

External interface:

2-channel 4-20mA output

2-channel 4-20mA input

2 relay inputs+2 switch inputs

RS232/RS485 (built-in national standard protocol)