The Series 9900 complies with the requirements of NFPA 99 2002 paragraph
188.8.131.52.5 that mandates the continuous monitoring of purge gas while welding
or brazing gas lines.
These alarms are ideal for any gas application where a decrease in gas
pressure could be detrimental to the operation.
Rated for 3000 psig the Series 9900 can be installed between the cylinder
valve and the user’s pressure regulator or system. At low pressure, the Series
9900 provides both and audible and visual alert to the user when the container
pressure reaches the pre-set level. Units are available in brass or stainless
steel with the appropriate CGA connections for easy installation between an existing
cylinder and regulator, or with pipe threads or compression fittings for permanent
installation into a gas supply system.
Standard models require 110 VAC power. For remote locations or where power
is not readily available there are battery-powered models that operate on a standard