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All Categories > By Primary Gas to be Measured > Methane Analyzers (CH4) > Continuous Methane Analyzers for Hazardous Locations (Continuous CH4 Analyzers) > Continuous Process Methane Gas Analyzer by Infrared Detector - 470 Series > Item # Model 420 D1 or D2  


Item # Model 420 D1 or D2, Model 420 D1 or D2, Methane Analyzer, 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-level HC's as CH4 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 or Div2 hazardous areas





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

Specifications

Method of Detection
Single cell NDIR with no moving parts

Ranges Available
470 - 0-1, 0-5, 0-10, 0-20, 0-30, 0-50, 0-100% HCs as CH4

Resolution
0.1% CH4 on % versions

Accuracy & Repeatability
1% of full scale

Drift
Less than 2% of full scale per month

Response Time (T-90)
Less than 15 seconds

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

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

Analyzer Type
Methane Analyzer

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


Applications
Light-duty analyzers for applications or environments that are less intensive. For continuous analysis of Hydrocarbons (as CH4) in process gas streams using an infrared detector.


Features
  • Detector is temperature-controlled or compensated for improved analytical stability
  • High ranges available (up to 100.0%)
  • Low ranges available (to 1.00%)
  • Touch-screen display for gas readings
  • Built-in sample pump or pressure regulator
  • Non-isolated 4-20mA analog recorder output
  • Detector is reliable and non-depleting
  • Fast response (T90 - less than 15 seconds)


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
  • Hazardous area purge system; available for Class 1 Div1 & Div2 hazardous areas.


Calibration
  • Easily zero checked on ambient air or nitrogen (N2)
  • Span using a known CH4 in nitrogen calibration gas.


Unique Applications
      The 470 Series analyzers are designed for detection of CH4 in non-corrosive gas streams. Also, the presence of higher order hydrocarbons will make the CH4 reading erroneously high. Detector response varies with each HC in the sample gas. Consult Nova for these applications. 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.



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