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All Categories > By Primary Gas to be Measured > Sulfur Dioxide Analyzers (SO2) > Continuous Sulfur Dioxide-only Analyzers for Hazardous Locations > Continuous Process Sulfur Dioxide Gas Analyzer by Infrared Detector - Series 460 > Item # Model 420 D1 or D2  


Item # Model 420 D1 or D2, Model 420 D1 or D2, Sulfur Dioxide Analyzer, NEMA 4 cabinet with cabinet purge systems for hazardous areas

The Nova FLEXI-NOVA Series Platform has been designed for continuous gas measurements in applications and environments that are less intensive. Lab work, research, clean processes, pre-treated / pre-cleaned produced gases, and others, may benefit from the FLEXI-NOVA series.

Depending on application, some light-duty sample conditioning features may be available. For clean process measurements, percent and ppm-level SO2 gas.

All sensors / detectors are temperature-controlled or temperature-compensated for maximum analytical stability. Easy calibration using touch-screen controls. Serial Output Package allows connection & data-logging to personal computers via a choice of USB / RS-232 / RS-485.

Cabinet: NEMA 4 cabinet with Hazardous Area Purge System; available for Class 1 Div1 & Div2 hazardous areas





Specifications  · Applications  · Features  · Options  · Calibration  · Unique Applications

Specifications

Method of Detection
% CO2 by infrared detector
Microprocessor based single cell NDIR

Ranges Available
460 - 0-1, 0-5, 0-10% SO2
460L - 0-2000, 0-3000, 0-5000, PPM SO2

Resolution
0.1% SO2 on % versions, 10 PPM SO2 on PPM versions

Accuracy & Repeatability
1% of full scale

Drift
Less than 2% of full scale per month

Response Time (T-90)
15-30 seconds to T-90

Ambient Temperature Range
40 to 104°F (4 to 40°C). Optional: up to 130°F (55°C) with cabinet cooler

Linearity
±1% of full scale

Size & Weight
NEMA 4: 61H x 51W x 31D cm (24"H x 20"W x 12"D) (not including purge panel & vent)

Power
115 VAC, 60 Hz
220 VAC, 50 Hz

Output Options
4-20 mA into 500 ohms non-isolated standard
Isolated 4-20 mA, RS232, RS485 serial outputs

Alarms
High and/or Low alarm contacts available, relay contacts SPDT 5A @ 220 VAC rating
Low flow alarm

Analyzer Type
SO2 Analyzer

Hazardous Area Rating Options
Class 1 Div 2 or Class 1 Div 1 Hazardous Area Ratings available


Applications
For continuous analysis of sulfur dioxide (SO2) in process gas streams using an infrared detector. Percent and PPM levels available as Models 460 & 460L respectively.


Features
  • Percent (460) or PPM (460L) SO2 by infrared detector
  • Low range PPM (461) SO2 by electrochemical sensor
  • NDIR detector is sensitive, reliable, and non-depleting
  • Electrochemical sensor is easy to replace when needed
  • Touch-screen display for gas readings
  • Easy-to-maintain modular layout
  • Sensor is temperature controlled for maximum stability
  • Built-in sample pump, flowmeter, and filters
  • 4-20mA non-isolated recorder output


Options
  • Hi/Low gas and low flow alarms available
  • Serial output & data-logger package available
  • Light-duty pre-filter & condensate removal
  • Up to 6 other gases measured (depending on application)
  • Cabinet cooling available


Calibration
  • Easily zero checked on ambient air
  • On bottled SO2 in N2 gas for Span
  • On bottled N2 or Air for Zero


Unique Applications
Nova 460 / 461 analyzers are suitable for clean dry process gases only. Some gases may interfere with SO2 measurement; complete information on sample gas composition is required. All Nova analyzers are built using proven technologies and techniques. If this product does not suit your application, please contact Nova at 1-800-295-3771. In many cases, we are able to build an analyzer specific to your needs.



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