2Principle

The gas distribution principle of this device is the mass flow mixing method. By accurate settings, 10 can be configured^－9～10^－2(i.e. ppb)～%Content)Various concentration standard gases with varying concentrations.

3Main functions

3.1Automatic configuration: This device is a computer intelligent gas distribution system, and all operation functions are completed through the touch screen on the display screen. You only need to input the gas concentration that needs to be prepared and diluted. By pressing the touch screen a few times, you can prepare and display the accurate and stable standard gas concentration you want in more than 10 seconds.

3.2Automatic calibration: Automatically adjust the flow rate and volume based on the properties of different gases.

3.3Screen display: There are 4 page labels below the display screen, which can be accessed by touching the corresponding page. The top of the display screen shows the year, month, day, instrument name, and time.

3.4One machine, three uses: One use: convenient, fast, and accurate touch screen operation to prepare standard gases; Second use: According to the required flow rate of the tested instrument (or analytical method), the device controls and divides the flow rate of the prepared standard gas, which is equivalent to adding the required supporting equipment "flow controller" in the gas distribution device; Three uses: The upper right corner of the front panel is equipped with a time display, which can accurately time at any time.

3.5Randomly prepare gas types: According to work needs, this device can simultaneously prepare multi-component standard gases or separately prepare single component standard gases.

3.6The viewing angle of the touch screen can be adjusted freely within the range of 0-90 degrees.

4Main purpose

The purpose of using a multi-component dynamic gas distribution system is to dilute high concentration bottled gas standard substances into the multi concentration standard gas required by users in a short period of time. Mainly used for the research and development of gas products and gas testing methods in various industries, providing standard gases; Used as a standard device in the metrology department to measure, detect, and calibrate the performance of gas analyzers and testers used in various industries.

5Technical indicators

5.1Maximum dilution factor: 1000 times. MFC flow control with five or more channels

5.2Regular outputFlow range: （200～2000）ml/minThe flow range, composition, and maximum dilution ratio can be set and assembled according to user requirements:

5.3Traffic repeatability: ≤ 0.2%

5.4Flow linear error: ≤ ±0.3%

5.5Gas distribution uncertainty: ≤ 0.5%

5.6Preheating time: 30 minutes

5.7Automatic zeroing: Automatically adjust the zero point of MFC after preheating is completed, or repeat zeroing from the preheating zeroing page

5.8Instrument power supply: 220VAC

5.9Operating environment: 0 ℃~45 ℃

5.10Dimensions: 400mm wide x 195mm high x 500mm deep

5.11Instrument weight: approximately 14kg