Our A333-N2R Nitrogen Low Pressure Cylinder Alarm with Regulator Flowmeter. The alarm pressure switch is oxygen-cleaned with a set point range of 30 psi low to 600 psi high. The alarm as set from Med-Con is 200 psig +/- 5 percent. Special order set points are available. There is a Green blinking “OK” light when gas supply is adequate and a Red blinking “LOW” light when gas supply is low. In addition, an audible alarm (90 dB) activates when purge gas is low. The alarm operates on a 9-volt battery, included, which can give up to a year of operation, dependent upon usage. This alarm has been certified laboratory tested to meet Military Spec MIL-STD-810F (516.5) for shock.
The Regulator Flowmeter is preset at 20 psi with a flow capacity of 100 SCFH. The regulator/flowmeter hose connection is 5/8″-18 Right Hand External “B”. An adapter can be used to convert this regulator/flowgauge connection to 1/4″ NPT Male. Sold separately on this site.
This alarm is for high-pressure cylinders. See our A333-CRYO for cryogenic applications.