With the increasingly strict environmental regulations and the acceleration of industrialization, the application of oil and gas recovery systems in fields such as petroleum refining, gas stations, chemical plants, and natural gas processing is becoming more and more widespread. The core of the oil and gas recovery system lies in the effective collection and treatment of volatile organic compounds（VOCs）， To reduce environmental pollution and resource waste. The gas concentration detection of the oil and gas recovery system is a key link to ensure its efficient operation and compliance. This plan aims to provide a comprehensive and efficient gas concentration detection solution to ensure the stable and safe operation of the oil and gas recovery system.

NGPG oil and gas recoverydetectionOverview of product advantages:

1. Double explosion-proof certification

Obtained the explosion-proof mark issued by the National Explosion proof Electrical Product Quality Inspection and Testing CenterIntrinsic safety explosion-proof - ExoIICT6Ga "and" Explosion proof "-Ex dbIICT6Gb”Double explosion-proof certification certificate.

2. Simultaneously supporting three types of signal outputs

support1 RS485 (standard Modbus RTU) signal output;

support1 channel 4-20mA (three wire or four wire) signal output;

support1 passive relay output (DO) signal output.

3. high precisioncomposite layerDesign of anti-interference circuit for PCB board

Adopting multi-layer compositeThe anti-interference circuit design of the PCB board has also passed all EMC tests specified in the "Type Evaluation Outline for Gas Measuring Instruments" multiple times, and has been used in oil and gas recovery projects at gas stations across the country without any interference.

4. High precision and low power consumptionMCU

Adopting the United StatesTI 430 MCU chip, which is a 16 bit mixed signal microcontroller for single-phase metering applications; Low power design; Equipped with 3 24 bit ∑ - Δ ADCs, suitable for high-precision measurement scenarios; 60KB flash memory, 2.5KB RAM; Advantages such as strong scalability

5. Human computer interaction Chinese (English) interface intuitive operation

ChineseOperation interface (customizable in English) design, easy for on-site operators to calibrate zero points、concentrationcalibrationRestore factory settings, unit settings, alarm settings, and system parameters and other functional operations.

6. Customize various structural forms of air chambers

Various forms and materials of flow collection chambers can be customized according to the needs of on-site pipelines.

7. Support multiple detection principles

Non dispersive infrared can be selected as needed(NDIR)、 Detection of sensor principles such as catalytic combustion (RCO) and photoionization (PID).