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By Primary Gas to be Measured
Sulfur Dioxide Analyzers (SO
Continuous Sulfur Dioxide-only Analyzers
Continuous Process Sulfur Dioxide Gas Analyzer by Infrared Detector - Series 460
Item # Model 460N7MC
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Item # Model 460N7MC, Continuous Process Analyzer for Sulfur Dioxide by Infrared Detector, Wall Mounted NEMA7 UL/CSA Explosion-proof with Non-intrusive Magnetic Calibration, Class 1 Div 1 Group BCD
The Nova 460 Series SO
analyzers utilize a reliable microprocessor-based non-dispersive infrared detector specific to SO
. In operation, the internal sample pump draws the sample gas through the filter/condensate trap, secondary filter, flow meter, and then on to the infrared detector. The detector output is digitally linearized and then displayed as percent or PPM SO
on the digital meter. The output is also available as an analog or digital signal.
: Wall Mounted NEMA7 UL/CSA Explosion-proof with Non-intrusive Magnetic Calibration, Class 1 Div 1 Group BCD
Method of Detection
Microprocessor based single cell NDIR
460 - 0-1, 0-5, 0-10, 0-20, 0-30, 0-50, 0-100% SO
460L - 0-1000, 0-3000, 0-5000, PPM SO
on % versions, 10 PPM SO
on PPM versions
Accuracy & Repeatability
1% of full scale
Less than 2% of full scale per month
Response Time (T-90)
Less than 15 seconds
Ambient Temperature Range
40 to 122°F (5 to 50°C), Lower temperatures (-5°F, -20°C) with Cold Weather Package
±1% of full scale
Size & Weight
Physical data will vary depending on enclosure style and options required
115 VAC, 60 Hz
220 VAC, 50 Hz
4-20 mA into 500 ohms non-isolated standard
Isolated 4-20 mA, RS232, RS485, MODBUS, Ethernet outputs
High and/or low alarm contacts available, relay contacts SPDT 5A @ 220 VAC rating
Low flow alarm
Continuous Online, Single Gas
Hazardous Area Rating Options
Class 1, Div 1, Grp A-D Hazardous Area Rating
For continuous analysis of sulfur dioxide (SO
) in process gas streams using an infrared detector. Percent and PPM levels available as Models 460 & 460L respectively.
Percent (460) or PPM (460L) SO
by infrared detector
Detector is sensitive, reliable, and non-depleting
Bright digital readout
Fast response (T90 - less than 15 seconds)
Microprocessor control for push button calibration
Easy-to-maintain modular layout
Built in sample pump, flowmeter, and filters
4-20 mA outputs
Hi/Low gas, low flow, and diagnostic alarms available
Isolated analog, RS232, RS485, MODBUS, and Ethernet outputs available
Sample conditioning systems available for removal of moisture, acidic gas, and dust
Cabinet purge system available for use in hazardous areas
One-step 'cal-now' button with touch screen LCD display
Full automatic calibration with touch screen LCD display
Cold weather package for operation to -5°F (-20°C)
Cabinet coolers can be fitted to most models
Sensors mounted in temperature controlled heated box to improve accuracy
High temperature filters and probes
Easily zero checked on ambient air
Span using a known SO
in nitrogen (N
) calibration gas.
All Nova analyzers are built using proven technologies and techniques. If this product does not suit your application, please contact Nova. In many cases, we are able to build an analyzer specific to your needs.
460 Process SO2 Analyzer
Nova Analytical Systems is a part of the