What is the primary purpose of a vapor indicator?

The primary purpose of a vapor indicator is to detect flammable gases. Vapor indicators are crucial safety devices used on tankers and in various industrial settings where flammable substances are present. They provide real-time monitoring of the vapor levels in the atmosphere, ensuring that crews are aware of potentially hazardous conditions.

When flammable vapors accumulate, they can pose a serious risk of explosion or fire. The use of a vapor indicator allows for the early detection of these hazards, enabling personnel to take necessary precautions to mitigate risks, such as improving ventilation or evacuating the area if necessary. This function is vital for maintaining safety standards and protecting both personnel and equipment onboard a tanker.

While other devices may measure temperature, assess liquid levels, or monitor pressure, none fulfill the specific role of monitoring the presence of flammable gases in the immediate environment like a vapor indicator does. Therefore, its specialized purpose in detecting flammable vapors makes it an essential tool for safety in tank operations.