596 SERIES AMBIENT AIR ALARM MONITOR FOR ETHYLENE APPLICATIONS Designed to monitor and alarm for ethylene (C2H4) levels in ambient air near agricultural sites, food & fruit storage, and controlled atmosphere storage, etc. 596P - Pump Style in NEMA 12 Enclosure (models shown with optional strobe light) Fast response to the presence of C2H4 Instant warm up, no wait Bright digital readout Easy to use and calibrate Modular layout that is easy to maintain 4-20mA output signal for recording NEMA 12 dust-tight enclosure 596D - Diffusion Style in NEMA 12 Enclosure • Available in diffusion or pumped sampling configurations • Low flow alarm on pumped sample models • NEMA 4 & 4X weather-proof enclosures • Alarm with relay contact and 'Sonalert' audible alarm with 'Acknowledge' button • Bright red strobe light for visible alarming CALIBRATION • On N2 for zero • Analyzed calibration gas of ethylene gas in N2 for span NOVA ANALYTICAL SYSTEMS www.nova-gas.com 596DR1 - Alarm Unit and One Remote Diffusion-Style Sensor

DESCRIPTION The Nova 591 Series Ethylene (C2H4) alarm monitors are designed for the continuous detection of C2H4 in ambient air. The ethylene sensor is of the disposable electrochemical type with an expected life of between 3-4 years. The sensor needs no warm up time and is ready to go as soon as the monitor is turned on. 596D - one diffusion-type sensor in main cabinet 596DR1 - one diffusion sensor remote from main cabinet 596DR2 - two remote diffusion sensors 596DR3 - three remote diffusion sensors 596DR4 - four remote diffusion sensors • 596P - built-in sample pump to draw in sample from another...