What is the purpose of the pressure gauge on a portable extinguisher and how should it be read?

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Multiple Choice

What is the purpose of the pressure gauge on a portable extinguisher and how should it be read?

The pressure gauge on a portable extinguisher shows whether the unit is charged and ready to operate. You read it by looking at where the needle sits on the scale: if the needle is in the green operable zone, the extinguisher is properly charged and ready to use. If the needle is in the red zones, it indicates recharge or service is needed. This gauge is not meant to indicate temperature, water level, or battery life—that’s not its purpose on a portable extinguisher. Always check the gauge before use, and arrange service if the needle falls outside the green zone or if the gauge is damaged.

The pressure gauge on a portable extinguisher shows whether the unit is charged and ready to operate. You read it by looking at where the needle sits on the scale: if the needle is in the green operable zone, the extinguisher is properly charged and ready to use. If the needle is in the red zones, it indicates recharge or service is needed. This gauge is not meant to indicate temperature, water level, or battery life—that’s not its purpose on a portable extinguisher. Always check the gauge before use, and arrange service if the needle falls outside the green zone or if the gauge is damaged.

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