What does HGLDS mean in NASA

Hazardous Gas Leak Detection Subsystem (HGLDS) is a system designed to detect hazardous gas leaks in buildings or other enclosed spaces. It is used to alert occupants of a potential hazard and evacuate the area if necessary.

HGLDS uses sensors that detect combustible gases and provide an early warning system before concentrations reach dangerous levels. Sensors are installed in areas where there may be potentially hazardous gas leaks, such as boilers, furnaces, storage tanks, etc., which will trigger an alarm when they detect dangerous levels of combustible gases.

HGLDS detects combustible gases such as methane, propane, acetylene, toluene and others that can pose a health risk if inhaled. Additionally, it can also detect carbon monoxide which has no odor but can be deadly at high concentrations.

The frequency of testing for HGLDS depends on both the type and frequency of the potential hazards present. Generally speaking it should be tested every 6-12 months but this would vary from one situation to another and should always be discussed with a qualified technician prior to installation or service calls. In dirty or dusty environments additional inspection may be required more frequently than 6-12 months depending on conditions present.

Installation and maintenance should only be performed by experienced professionals who have the proper certifications and training required by law in your particular jurisdiction. In addition, any repairs or upgrades should also only be done by someone with these qualifications.