1. Issue: Analyzer PCB Malfunction Check

Troubleshooting Steps:

1. Disconnect the Sampling PC cable (A01, B01) from Analyzer PCB Port 1.
2. Reconnect the cable to Analyzer PCB Port 2.
3. Inspect whether the system operates correctly.

2. Gas Sampling System Communication Port Change

Procedure:

1. Tap multiple times on the bottom left corner of the Gas Sampling System main screen.
2. When the "COMSET" window appears:
   • Change Select COM Port from COM1 to COM2.
   • Move the Serial Port connection at the back of the PC from COM1 to COM2.
3. Verification:
   • Ensure that the CHANNEL NAME is displayed.
   • Check if the Analyzer PCB LED indicators (Rx, Tx) are blinking.

⚠️ Caution: Improper port settings may result in communication failure.

3. Device Manager Verification

Steps to Check USB Serial Port:

1. Double-click on the top left corner of the Gas Sampling System main screen to access Windows.
2. Open Device Manager.
3. Verify if the USB Serial Port is functioning correctly.

⚠️ Warning: If the USB Serial Port is not recognized, the system may require driver reinstallation.

4. Gas Sampling System Execution Program Verification

Steps to Resolve Execution Issues:

1. Copy the provided execution file to the Windows desktop.
2. Run the copied file and check if it operates correctly.
3. If the program runs successfully:
   • Delete the previously installed version.
   • Remove related files from C: Drive and the Auto Start folder.
4. Use "Windows Key + R" to open the Run command and enter the necessary commands as per the provided instructions.

⚠️ Note: Running an incorrect execution file may cause unexpected errors.