2.Main functions

2.1Liquid organic solvents can be automatically prepared into any single point concentration, and the gas can be used statically or dynamically according to the needs;

2.2Alternatively, a single injection can be performed by automatically preparing the liquid organic solvent into a high concentration gas, and then continuously and dynamically diluting it to any concentration on the same device. (1) Avoiding the tedious process of adding one sample for each concentration; (2) Reduced sampling errors introduced when preparing low concentrations with high-purity solvents;

2.3 Bottled high concentration gas standard substances can also be continuously diluted to different concentrations on the same device;

2.4Automatically correct multiple factors that affect valve distribution, without the need for manual search and correction;

2.5Automatically calculate the sampling amount of liquid solvent based on the concentration of the desired gas, without the need for manual calculation;

2.6Input the required concentration through touch screen operation, automatically perform continuous dilution without manual calculation;

2.7Automatically adjust flow rate based on experimental environment temperature and pressure; Automatic control of inflation time;In short, there is no need for manual calculation. Simply press the touch button and select the desired gas name, concentration, and concentration unit to complete the work you need to do.

2.8Dynamic gas distribution: 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 select and input the name and concentration of the gas to be prepared and diluted on the device screen. By pressing the touch screen a few times, you can prepare and display the accurate and stable standard gas concentration you need in more than 10 seconds;

2.9Automatic calibration: Automatically adjust the flow rate and volume based on the properties of different gases and the temperature of the experimental environment;

2.10 Simultaneously, multiple groups can be allocated to prepare mixed standard gases, and single component standard gases can also be prepared;

2.11Touch operation and screen display: There are 4 page labels below the display screen, which can be accessed by touch to enter the corresponding page. The top of the display screen shows the year, month, day, instrument name, and time.

2.12The use of prepared gas: The prepared standard gas can be used directly or filled into a gas bagOr steel cylinder (note: the function of filling steel cylinders requires additional fees)Use in a different location.

2.13The viewing angle of the touch screen can be adjusted freely within the range of 0-90 degrees.

3Main purpose

3.1This device provides a standard device for establishing measurement standards for various gas analyzers, combustible gases, toxic and harmful gases, and other instruments used by multiple departments such as metrology, environmental protection, petrochemicals, medicine and health, disease control centers, and coal mines. It also prepares standard gases for the calibration, calibration, and testing of these instruments;

3.2Used to evaluate the various performance of gas measuring instruments, measuring instruments, and gas sensors to prepare standard gases;

3.3Prepare standard gas for the calibration and performance evaluation of sulfur hexafluoride leak detectors in the energy sector;

3.4Used for the calibration and performance evaluation of methane testers, carbon monoxide and oxygen testers in coal mines to prepare standard gases.

4Technical indicators

4.1The conventional dilution ratio for gaseous phase is 1000:1, with four-way MFC flow control;

4.2Conventional output flow range: (100-2000) ml/min

4.3The flow range, composition, and maximum dilution ratio can be set and assembled according to user requirements:

4.4Traffic repeatability: ≤ 0.2%

4.5Flow linear error: ≤± 0.3%

4.6Gas distribution uncertainty: ≤ 0.5%

4.7Uncertainty of liquid gas distribution: ≤ 1.5%

4.8Preheating time: 30 minutes

4.9Automatic zeroing: Automatically adjust the zero point of MFC after preheating is completed, or repeat zeroing from the preheating zeroing page

4.10Instrument power supply: 220VAC

4.11Operating environment: 0 ℃~45 ℃

4.12Dimensions: 400mm wide x 195mm high x 500mm deep

4.13Instrument weight: approximately 12kg