1. Product Research:

   - Start by researching manufacturers or suppliers that offer VOC gas detection systems with the specified features.

2. Contact Manufacturers or Suppliers:

   - Contact the manufacturers or suppliers you've identified and inquire about the availability of a VOC gas detection system that meets your criteria. Clearly communicate your requirements and expectations for fast response, cartridge-type sensor, PID sensor, digital flow sensor, and other features.

3. Request Quotations:

   - Request quotations for the VOC gas detection system that aligns with your needs. Ensure that any warranty information and additional services, such as calibration and maintenance, are clearly outlined in the quotation.

4. Demo and Evaluation:

   - If possible, arrange for a product demonstration to ensure that the system meets your expectations and is user-friendly.

5. Choose the Right Product:

   - Evaluate the options presented to you and select the VOC gas detection system that best fits your requirements and budget.

6. Purchase and Delivery:

   - Place your order with the chosen manufacturer or supplier and confirm the delivery terms.

7. Installation and Training:

   - Coordinate the installation of the VOC gas detection system and ensure that your team receives proper training on its operation and maintenance.

8. Cartridge Sensor Replacement:

   - Understand the procedures for easy cartridge-type sensor replacement and ensure that you have replacement cartridges readily available.

9. Digital Flow Sensor:

   - Familiarize yourself with the digital flow sensor's operation to maintain a regular flow rate for accurate detection.

10. PID Sensor for Low Concentration VOCs:

    - Configure the system to use the PID sensor for the detection of low concentration VOC gases.

11. LCD Display and Configuration:

    - Learn how to use the fine LCD display to access and configure various information as needed.

12. Output Signals and Communication:

    - Set up the 4-20mA output signal and the communication method (RS-485 Modbus or PoE) according to your monitoring and data transmission needs.

13. Alarms and Relay Outputs:

    - Configure the 2-stage alarms, trouble display, and relay contact output for safety and notification purposes.

14. 3-Wire Connection:

    - Set up the 3-wire connection for both signal and power as per the system's requirements.

15. Calibration and Maintenance:

    - Ensure that the system can be calibrated and maintained by one person, following the manufacturer's guidelines.

By following these steps and working closely with the manufacturer or supplier, you can arrange the procurement of the VOC gas detection system that meets your specific needs. Maintain proper documentation for warranty and service records to ensure the long-term performance of the system.