AirGard® Air Flow Monitors

350CEM	315BSC	410-HE

The AirGard 350CEM and 315BSC Air Flow Monitors continuously monitor and indicate air flow levels in critical environments. Both models feature wide velocity ranges to accurately measure air flow across HEPA filters or in exhaust ducts. The AirGard 410-HE Hazardous Environments Monitor is specifically designed to monitor air flow in explosion-proof lab hoods or hoods that are used in environments where all equipment must be explosion-proof or intrinsically safe. All these models are easy to install, making them an excellent choice for both new installations and retrofits.

Alnor AirGard Air Flow Monitors measure the exhaust of bio-safety cabinets and other hoods using a remote probe inserted in the air flow stream of the exhaust duct. The sensing probe of 350CEM and 315BSC Monitors measures the velocity in the exhaust duct and displays important information on a module mounted on the face of the bio-safety cabinet. The 410-HE Monitor uses a pressure averaging tube mounted in the exhaust duct, a pressure switch mounted on top of the lab hood, and a display module mounted to the face of the lab hood to monitor and indicate exhaust duct pressure.

When the velocity or pressure drops below a user-determined level, all AirGard Air Flow Monitors activate an audible alarm, visual alarm, and relay output. This alerts personnel that the air flow at the face of the lab hood or bio-safety cabinet is inadequate. The 315BSC monitor has jumbo LEDs to indicate safe, marginal, or low duct exhaust and sounds an audible alarm during low duct exhaust conditions. The 350CEM monitor adds a digital bar graph as a trend analysis tool and a hidden digital velocity display to aid in the diagnosis of problem exhaust flows. The 350CEM monitor also has a high flow alarm to help detect excessive exhaust air flow; this is a powerful preventative maintenance and diagnostic tool. The 410-HE Hazardous Environments Monitor indicates unsafe air flow with a red LED and an audible alarm. In addition, all AirGard Air Flow Monitors can report unsafe air flow conditions to other personnel in a remote location by means of a relay output.

Installation and set-up of the Alnor AirGard Air Flow Monitors is quick and easy. The 350CEM and 315BSC Monitors can be either flush or kit mounted. A single point field calibration is recommended for the 350CEM Monitor; the 315BSC Monitor requires setting the low alarm set point. The 410-HE Monitor is kit-mounted and requires setting the low alarm set point.