Environmental air VOC sampler dual channel exhaust gas VOC sampler

GR-3032Dual channel VOCs sampler

Scope of Application

Environmental air VOC sampler dual channel exhaust gas VOC sampler The GR-3032 dual channel VOCs sampler (hereinafter referred to as the sampler) is a sampler developed by our company for sampling volatile organic compounds in organized emissions from environmental air, workplaces, and industrial production. This sampler is a sampling device for various organic compounds such as TVOCs, benzene, toluene, xylene, etc. in the ambient air. The technical performance indicators of the sampler comply with the relevant standards issued. During the development process, extensive consultation was sought from experts and users, utilizing high-performance processors, imported sampling pumps, high-precision mass flow sensors, and advanced materials in the field of *, striving to provide users with a high-quality sampler that is reliable in quality and stable in performance.

adopt standards

HJ644-2013Determination of volatile organic compounds in ambient air - Adsorption tube sampling - Thermal desorption/gas chromatography-mass spectrometry method

HJ583-2010Determination of Benzene Compounds in Environmental Air by Solid Adsorption/Thermal Desorption Gas Chromatography Method

HJ584-2010Determination of Benzene Compounds in Environmental Air - Activated Carbon Adsorption/Carbon Disulfide Analysis - Gas Chromatography Method

HJ734-2014Determination of volatile organic compounds in exhaust gas from fixed pollution sources using solid-phase adsorption thermal desorption/gas chromatography-mass spectrometry method

HJ801-2016Determination of Amide Compounds in Environmental Air and Waste Gas by Liquid Chromatography

Main Features

1.Adopting low-noise imported brushless sampling pump, with high load capacity and long service life;

2.adoptPIDFlow control algorithm for smoother flow control;

3.Adopting high-precision and high-quality flow meters, flow measurement is more efficientaccurate；

4. Dual channel sampling, each channel can be controlled separately, the sampling method is flexible, and multiple sampling modes such as timed and immediate can be set;

5.Built in high-efficiency lithium battery, dual channel simultaneous sampling time greater than8Hour;

6.built-in2Micro dual filters effectively protect the instrument from dust and prolong its service life;

7.Large size, wide temperature, high brightness color display screen;

8.Equipped with power failure protection function, the sampling data will not be lost during power failure sampling;

9.One machine for multiple purposes, capable of simultaneously generating exhaust gasVOCs, ambient airVOCsSampling of benzene derivatives, etc;

10.Large capacity data storage, single channel sampling storage for data larger than1000Group;

11.Built in Bluetooth module, optional Bluetooth printer for sampling data printing;

12.Small size, light weight, equipped with a triangular bracket, adjustable sampling height,

13The refrigeration box is equipped with a semiconductor refrigeration moisture separator, which effectively removes moisture from the flue gas and prevents water vapor from entering the adsorption tube and affecting the measurement results;

14The adsorption tube can be built into the refrigeration box to keep it in an ideal temperature environment（0~5℃) to improve the adsorption efficiency of the adsorption tube;

15Cascade adsorption tubes can be installed after the main adsorption tube to test whether the adsorption tube penetrates.

16The inner tube of the sampling tube is made of anti adsorption polytetrafluoroethylene material, with full heat tracing throughout the process;

17The sampling tube adoptsPIDHigh precision temperature controller with better control accuracy than2℃。

working principle

Environmental air VOC sampler dual channel exhaust gas VOC sampler A sampler is a device that uses a sampling pump to extract a sample. The gas flows through an electronic flowmeter and the flow signal is processed by a microprocessor to obtain the sampling flow rate and standard volume. Subsequently, the concentration of the collected substance is calculated based on the total amount of the measured substance in the sample measured by the analytical instrument and the standard volume of the sample.

technical indicators

The main technical indicators of the sampler are detailed in Table 1.

Table 1 Main technical indicators of the sampler