Spotting the Invisible: Optical Gas Imaging with the TC706 for SF6 Leak Detection

Sulfur hexafluoride (SF6) gas is widely used in the electrical industry for its excellent insulating and arc-quenching properties. But here’s the rub: SF6 is also a potent greenhouse gas with a global warming potential thousands of times stronger than carbon dioxide. Leaks can occur from electrical equipment, leading to environmental damage. This is where Optical Gas Imaging (OGI) with the TC706 thermographic camera comes in.

What is Optical Gas Imaging (OGI)?

OGI is a non-invasive technique that utilizes a special infrared camera to visualize gas leaks. The TC706 camera detects the temperature variations caused by the escaping gas, creating a real-time image of the leak’s location and intensity.

Why the TC706 for SF6 detection?

The TC706 camera offers several advantages for SF6 leak detection:

  • Safety First: Unlike traditional methods, the TC706 allows for safe detection from a distance, eliminating the need to de-energize equipment or endanger personnel.
  • Early Detection: The TC706’s high sensitivity helps identify leaks at an early stage, preventing larger emissions and environmental impacts.
  • Portable and User-Friendly: The compact and lightweight design makes the TC706 ideal for field applications. Its intuitive interface ensures ease of use, even for non-technical personnel.
  • Multi-Gas Detection: The TC706 goes beyond SF6. It can detect leaks of various other gases commonly used in industrial settings, offering versatility for your inspection needs.

Benefits of Using the TC706 for SF6 Leak Detection

  • Environmental Protection: Proactive leak detection with the TC706 minimizes SF6 emissions, contributing to a greener environment.
  • Cost Savings: Early leak identification prevents equipment damage and costly repairs associated with undetected leaks.
  • Improved Safety: Remote leak detection reduces the risk of accidents for personnel working near high-voltage equipment.
  • Enhanced Compliance: Regular inspections with the TC706 help facilities comply with environmental regulations regarding SF6 emissions.


The TC706 thermographic camera is a valuable tool for safeguarding the environment and ensuring worker safety in facilities that utilize SF6 gas.  Its ability to detect leaks remotely, efficiently, and with minimal disruption makes it a powerful ally in the fight against greenhouse gas emissions and costly equipment failures.


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