The correct usage of AGS-72 gas sampler is as follows:

1、 Preparation before operation

1. Environmental inspection

Ensure stable laboratory environment and avoid drastic fluctuations in temperature and humidity that may affect instrument performance.

Check if the instrument placement platform is level to prevent uneven stress on components due to tilting.

2. Equipment inspection

Confirm that the power cord, gas pipeline, pressure sensor, etc. are securely connected and free from damage or aging.

Check if the quantitative ring (default 1.0ml, customizable) is clean to avoid residual contamination of the sample.

Confirm that the corrosion-resistant sampling pump is in normal condition and suitable for negative or zero pressure sampling.

3. Sample preparation

Prepare gas samples according to testing requirements, ensuring good sealing of sampling bags or containers.

If dilution or mixing of samples is required, calculate the ratio in advance and complete the pre-treatment.

2、 Operation process of AGS-72 gas sampler

1. Startup and initialization

Connect the power, start the instrument, and wait for the system self-test to complete.

Open the supporting PC software, log in to the account and connect the instrument, and confirm that communication is normal.

2. Parameter settings

Injection volume: Set according to requirements.

Sampling time/frequency: Set the automatic sampling interval and total frequency.

Split ratio: Adjust the split valve according to the load capacity of the chromatographic column to avoid overload.

Pipeline cleaning: Enable automatic cleaning function to clean all pipelines during analysis intervals to prevent cross contamination.

3. Sample loading and injection

Connect the sampling bag to the instrument inlet and click on "Sample Loading" on the software interface.

The instrument automatically evacuates and cleans the pipeline. After the screen prompts "Ready", click "Start Sample Injection".

The instrument accurately injects samples according to the set flow rate and volume, without the need for manual needle operation throughout the entire process.

4. Data analysis and storage

After the injection is completed, the data is automatically synchronized to the workstation, and the software intelligently identifies the peak start and end points.

Check whether the baseline of the spectrum is stable, whether the methane and total hydrocarbon peaks are clearly separated, and confirm that there is no interference from impurity peaks.

Save data to the database to ensure that the operation information corresponds one-to-one with the results.

3、 Key considerations for AGS-72 gas sampler

1. Safe operation

When operating high-pressure gases, it is necessary to install flashback arresters and keep them away from sources of fire.

Regularly check the sealing of gas pipelines to prevent safety hazards caused by leaks.

2. Avoid pollution

Enable automatic cleaning function in different sample testing rooms to prevent residual contamination.

Regularly replace the injection spacer and rubber pad in the Rinse cap to avoid contamination of the needle with dirt.

3. Maintenance and upkeep

Daily cleaning: Clean the testing tank, pipeline, and sampling pump after each test to prevent corrosion or blockage.

Regular calibration: Calibrate the pressure sensor every six months to ensure accuracy meets standards (repeatability<1.5%).

Component replacement: Regularly replace vulnerable parts such as quantitative rings and sealing rings according to usage frequency.