KDXJ-OL SF6 Gas Leak Alarm System

KDXJ-OL SF6 Gas Leak Alarm System utilizes a carbon dioxide laser, narrowband filter, high-sensitivity low-noise photoelectric detection circuit, stable optical chopper, reference optical path, and open-path structure with advanced design methods and technologies to achieve real-time, online, open-path, high-sensitivity infrared laser spectroscopy remote sensing of SF6 gas concentrations in the test area.

The KDXJ-OL SF6 Gas Leak Alarm System overcomes the limitations of traditional SF6 detectors that require sampling and can only perform point measurements. Using an open-path structure, it can measure SF6 gas concentrations in the region without sampling. It integrates gas analysis, analog input, digital input, protocol conversion, communication interface conversion, transmission, and digital output control functions, covering the necessary field data acquisition functions for industrial control and monitoring systems. This intelligent acquisition system can be flexibly configured according to specific requirements of various application scenarios.

The KDXJ-OL SF6 Gas Leak Alarm System combines open-path high-sensitivity mid-infrared laser absorption spectroscopy technology, data acquisition and processing, and communication technologies into an open system platform. All functions are modularly designed for easy installation and maintenance. The system has an automatic concentration calibration function, eliminating the need for additional regular calibration.

Alternative Names:

• SF6 gas leak alarm device
• SF6 gas detection alarm device
• SF6 leak alarm device
• SF6 gas leak alarm system
• SF6 leak alarm system
• SF6 alarm device
• SF6 gas online monitoring device
• SF6 gas leakage monitoring and alarm system
• SF6 gas alarm system
• Sulfur hexafluoride gas detection device
• SF6 gas leak alarm online monitoring
• SF6 monitoring alarm system

The KDXJ-OL SF6 Leak Alarm System consists of an intelligent analog data collector, a laser emission and intensity monitoring unit, a laser reception unit, and a signal processing unit, achieving the purpose of real-time monitoring of SF6 gas concentrations in the area.

Functional Description of the Intelligent SF6 Laser Transmitter:

1. Quantitative Detection and Analysis of SF6 Gas in the Area (Using Open-Path High-Sensitivity Mid-Infrared Laser Absorption Spectroscopy Technology):

2. Eliminates fluctuations in laser intensity and external environmental influences.

3. Real-Time Display of SF6 Gas Concentration Values in the Area:

4. Allows setting any alarm concentration; when the SF6 gas concentration in the environment exceeds the set alarm value, it triggers an over-limit alarm function.

5. Monitoring Range of Each SF6 Gas Laser Detector:

6. Can monitor SF6 concentration changes within a range of 0.1~200m without requiring any sampling device.

7. Only needs one reflector; the laser passes through the monitored area and is reflected back to the detector by the reflector, achieving measurement of SF6 concentration throughout the entire optical path.

8. Detection Using Laser Spectroscopic Absorption Technology:

9. For SF6 gas leakage detection, measurement accuracy can be higher than one part per million (ppm), with detection resolution reaching the ppm level.
10. Features good repeatability, stability, reliability, and a long service life.
11. Provides quantitative analysis using open-path technology, avoiding sampling and enabling continuous monitoring over a large area.
12. Simple operation with a low failure rate.

1. SF6 Gas Detection Sensitivity: ±1ppm (laser transmitter), ±5% of set value (electrochemical sensor)
2. Oxygen Detection Concentration: 1～25% U (with digital display function)
3. Oxygen Concentration Alarm Threshold: Adjustable
4. Oxygen Measurement Accuracy: <0.5% (0.4%, O2 at 21%)
5. Temperature Display Range: -25～99℃
6. Temperature Measurement Accuracy: <0.5%
7. Temperature Alarm Threshold: Adjustable
8. Humidity Display Range: 0～99% RH
9. Humidity Measurement Accuracy: <3%
10. Humidity Alarm Threshold: Adjustable
11. Input Voltage: 176～265VAC
12. Alarm Output Contacts: 2A
13. Fan Output Contact Power Supply: 380VAC, 40A
14. Fan Ventilation Time Setting: 15 minutes/time (adjustable)
15. Data Recording Duration: 2 years, with massive storage on the host computer
16. Communication Protocol: RS-485 standard protocol