501 Series0 pages

501 SERIES
CONTINUOUS MULTI-GAS AMBIENT AIR MONITOR

APPLICATIONS
For simultaneous analysis of up to four gases in ambient air including O2, CO2, NO, NO2, CO,
temperature, and % RH. Single gas versions are also available for H2S, SO2, HCL, Cl2, & NH3.

FEATURES
• All gas detectors contained in NEMA 12 or
optional NEMA 4 wall-mounted enclosure
• Separate sensor for each gas
• Bright digital readout for each gas
• Built-in sampling pump
• Easy to maintain modular layout

OPTIONS
• Recorder output of 4-20mA or voltage for all gases
• Isolated analog 4-20mA output available
• Alarm lights and relay contacts for each gas with
common 'Sonalert' audible alarm and reset button
• Red strobe light mounted on top of analyzer
• Low sample flow alarm
• Multiple alarm points for measured gases
• Multipoint sampling using Nova 402AS
AutoSequencer

CALIBRATION
• On clean air or nitrogen for Zero
• On analyzed calibration gas for Span

NOVA ANALYTICAL SYSTEMS
www.nova-gas.com

NEMA 12 and NEMA 4
enclosures shown with
optional red strobe light