The atmospheric heavy metal on-line analyzer combines the patent technology of Tian Rui instrument company, X fluorescence (XRF) nondestructive testing technology and atmospheric automatic enrichment technology, conforms to the EPA IO-3.3 standard method of the United States; the system adopts unique X ray excitation light source, sample excitation structure, detection system, automatic enrichment, automatic paper rolling system Such as core technology can greatly improve the detection sensitivity of heavy metals in air particles, and can carry out a low content of heavy metals such as lead, cadmium, chromium, arsenic and so on. At the same time, the automatic monitoring of unattended (1~3 months) can be realized.

Instrument mainframe

Including particulate matter enrichment system (cutter, DHS dynamic heating device, flow measurement control device, sampling pump), film system (PTFE filter film with extremely low background element content > filter film motion device), X fluorescence analysis system (large power X light tube, SDD X fluorescent detector, multi filter switch device, digital multichannel) Analyser, FP algorithm analysis software), control system (control sampling, film motion, XRF detection, flow record and control, pollutant concentration calculation, result display, etc.). The four systems are integrated into a chassis except for particle cutter and sampling pump, which are convenient for transportation and installation.

Heavy metal workstation

Hardware configuration:

(1) embedded integrated touch screen IPC can store data for more than ten years. (external industrial control computer can also be customized according to customer requirements).

(2) interface configuration: input and output interface 24V DC, 2 A, RS232 serial port (Modbus protocol, maximum 38.4 kbps); heavy metal workstation and instrument and equipment connection port to ensure batch data transmission.

Software configuration:

(1) EHM-X100 control and comprehensive analysis software, Chinese operation interface, touch screen operation, display real-time sampling flow, sampling time, measurement state, heavy metal concentration value, content curve and other information; and have self diagnosis and setting function, real-time state monitoring function, and can store more than ten years monitoring data; software mining With advanced modular design, it has powerful and flexible functions such as data set, calibration, preservation, display, query, analysis, transmission and so on.

(2) the data conforms to the data transmission standard of automatic monitoring (monitoring) system for pollution sources (HJ/T 212-2005). The open communication protocol can be connected to the data acquisition platform, and it can guarantee the interconnection with the provincial and national stations.

(3) the storage files that provide the monitoring data can be output in TXT text or EXCEL table; the software can save the spectrum scanning spectrum of each measurement or calibration, and can retrieve the query.

Particle cutter

It is possible to use TSP, PM10 and PM2.5 cutters to measure heavy metal contents in particulate matter with different dynamic diameters. The cutter is certified by an authority. At the same time, there are also outdoor temperature sensors, including louver shields and lightning protection isolators.

Equipped with special waterproof flange for roof, the cutter can be fixed on the roof. The user can also select the vehicle platform and fix the cutter on the roof.

DHS dynamic heating system

When testing PM2.5 particulates, the influence of moisture in the air on the test can be eliminated.

Sampling pump and fan

The diaphragm pump with high efficiency is imported with a maximum flow rate of 168 L/min and a minimum vacuum of 60 Torr.

The air is introduced into the main engine through the bellows through the high pressure fan to heat the X ray tube. The light tube is stable and the service life is prolonged.

Consumables

Filter membrane: take the hourly sampling test as an example, a roll of filter membrane can be used for one month.

Fan air filter.

Working conditions

Measurement of ambient temperature: -40 C ~50 C

Measurement of ambient humidity: 0%RH~90%RH

Host working environment temperature: 5 to 40 degrees centigrade

The humidity of the working environment of the host: 30%RH to 60%RH

Power supply: 220V AC + 10%, 50Hz + 1Hz

Performance characteristics

The advanced X ray fluorescence (XRF) nondestructive testing technology is perfectly integrated with the automatic enrichment technology of atmospheric particulates, which accords with the American EPA IO-3.3 standard method.

A variety of particulate cutters are provided for users to select and measure the distribution of heavy metal particulates on different dynamic diameters.

The contents of 30 heavy metals, such as lead, cadmium, chromium and arsenic, are accurately measured, and the best detection sensitivity is 10pg/m3.

The main engine adopts the international standard 19 "chassis, which can be installed on the mobile monitoring vehicle or on the standard cabinet of the automatic weather station.

20 years of XRF technology accumulation, lightning protection industry level electronic and electrical design, the instrument has high operational reliability and stability, 24 hours without fault operation, and also has intelligent fault diagnosis and self elimination function.

No miscellaneous peak optical path design, built-in 3 filter, automatic switching to achieve low background measurement.

Built-in calibration module, XRF spectrum horizontal and vertical coordinate automatic calibration, calibration frequency can be set arbitrarily, also built-in metal internal standard source, automatic quality control and alarm can be realized.

Through the mass flow controller and temperature and pressure sensors, the flow rate of sampling is accurately controlled, and automatic flow calibration can be realized.

With RS232/485, USB, GPRS, ADSL, Ethernet and other data transmission methods, it can realize the remote transmission, monitoring and testing of the running parameters, state and data.

The system software adopts advanced layered modular design, which has powerful and flexible data setting, calibration, preservation, display, query, analysis, transmission and other functions. The data conforms to the standard of data transmission standard for automatic monitoring (monitoring) system of pollution sources (HJ/T 212-2005). At the same time, users can quickly and easily customize any other custom functions.

The professional multi radiation protection treatment, when measuring, the instrument has no radiation leakage in all directions.

application area

Can be connected