Customized new gas dilution instrument

Environics^®Gas diluter

1Product Overview

Environics®4000The series of products is an intelligent gas mixture/Dilution system, capable of mixing or diluting standard gases. Can be used to generate accurate gas calibration standards, create gas environments, or produce mixed gases for analytical research and production purposes.4000Series products can generate from percentage toppbHorizontal gas concentration, used for single or multi-point calibration while reducing gas cylinder usage. The product can automatically mix up to seven gases, meeting a wide range of dilution requirements(Gundam10000:1)Its traffic can be traced backNIST(National Institute of Standards and Technology).

2Equipment Overview:

The installation and use of the product are very convenient. Now you can order and install this device with just one24VPower supply, you can use it anywhere.

Instrument operation interface

The system consists of two parts:4000Series product equipment and user personal computers. The user interface isMicrosoft®Windows, throughUSB(standard configuration)orRS232Serial interface andEnvironics®Operating system communication.

3Product features and technical advantages:

· Large dilution ratio（10000:1）Convenient for users to use and with fewer gas cylinders, it can achieve the required complex testing;

· Can achieve multi-point verification;

· Automatic calculation of dilution gas and range gas flow rate;

· Memory quality flow control standard table;

· Modular design allows for the addition of extra air circuits;

· Users can select frequently used gas cylinders from limited ones in the laboratory and utilize automaticK-Factor calibration can calculate the presence of an infinite number of components in a gas cylinder.

4Technical parameters:

· Accuracy: Concentration:±1.0%SP, traffic:±1.0%SP；

· Traffic repeatability:0.05%

· warm-up time:30minute

· Gas connection:1/4'Swagelok(Or compatible accessories)

· work pressure(traffic-related)

as low as:10psig (0.67 Bar)

recommend:25 psig (1.68 Bar)

maximum:75 psig (5.04 Bar)

5Ultra high purity multi-component gas mixing system

This system can be used to generate more accurate gas calibration standards, for analysis and research, or for producing standard gas mixtures.4000 UHPSeries can generate from percentage toppbLevel of gas concentration, used for single or multi-point calibration. The flow path adopts a small volumeUHPPneumatic diaphragm valve, welded pipeline, andVCRPipeline joint, leakage test reached1*10-9ATMcc/sec HeOr higher.

6Product customization module

（1）Can filling

Low content in the field of environmental analysis applicationsVOCStorage: Fill and mix diluted standard samples in containers such as Suma tanks for sampling to a specific pressure. When the required pressure is reached, the system will automatically stop and even allow the required pressure to be changed during canning.

（2） Gas path heating

According to the different boiling points of the samples, some gas samples may condense. To address this issue, it is recommended that users use the gas path heating function to prevent gas samples from condensing and adsorbing in the pipeline. At the same time, heating the pipeline can also shorten response time, reduce sample contamination, and extend the service life of the instrument. Heating flow paths are usually used in combination with silicon coatings or instruments with blow off circuits.

（3） humidification function

Allow the addition and delivery of gases with specific relative humidity to the mixed gas. achievable0-95%The relative humidity level between them. The humidification device is calibrated for a specific humidity level before leaving the factory, with high accuracy5%(Assuming constant flow rate and gas temperature), and can be accessed throughNISTTraceability. External humidification device, consisting ofNafionThe water vapor produced permeates and precipitates. To prevent moisture accumulation and condensation, it is often used in conjunction with the blowing flow path.

（4） Silicon coated pipeline treatment

The silicon surface treatment of the gas path can effectively eliminate sulfurH2SThe adsorption and corrosion of active compounds such as carbonyl sulfide on stainless steel surfaces can improve the accuracy of instrument gas distribution and prolong the service life of the instrument; Coating flow paths are often combined with heating flow paths or systems with blowing flow paths. Calibration of application and environmental testing, petroleum and petrochemical detection and control instruments, etc.

（5）Air path blowing

S4000/4040/4020An optional purge flow control system is provided in the system, which can perform gas purging function on some pipelines. It can purge residual samples in solenoid valves, pipelines, mixing chambers, and mass flow controllers to prevent the residual toxic and harmful gases from causing danger to personnel or instruments.

（6）Penetration chamber

For substances that are not present in the user's gas cylinder or samples with lower concentrations, it is necessary to use a permeation tube to generate standard substances. The system can be equipped with a permeation furnace to calibrate the instrument by controlling the temperature and flow rate, and outputting standard samples. Multiple infiltration furnaces can be installed in this system, and each infiltration furnace can accommodate multiple infiltration pipes for simultaneous use.