Submersible pressure gauge
Submersible Pressure Gauge (often abbreviated as SPG) is a device used by scuba divers to measure the pressure of compressed air in their scuba tank. The gauge provides a direct readout of the pressure in the tank, usually in bars or pounds per square inch (psi).
Function[edit | edit source]
The primary function of a submersible pressure gauge is to provide the diver with a clear and accurate indication of the remaining air pressure in their scuba tank. This information is crucial for planning and conducting a safe dive. The gauge is typically connected to the diving regulator via a high-pressure hose and is designed to withstand the high pressure within the scuba tank.
Types[edit | edit source]
There are two main types of submersible pressure gauges: analog and digital.
Analog gauges use a Bourdon tube gauge mechanism to measure pressure. The pressure from the tank causes the Bourdon tube to straighten, and this movement is transferred to a needle on the gauge face, providing a direct readout of the pressure.
Digital gauges use electronic sensors to measure pressure. The sensor generates an electrical signal proportional to the pressure, which is then converted into a digital readout. Digital gauges often include additional features such as temperature readings, dive time, and depth information.
Safety Considerations[edit | edit source]
Regular inspection and maintenance of the submersible pressure gauge are essential for safe diving. A faulty or inaccurate gauge can lead to a diver running out of air underwater, which can have serious, potentially fatal consequences. Divers should always check their gauge before and after each dive, and have it serviced regularly by a qualified technician.
See Also[edit | edit source]
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