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All Categories > By Primary Gas to be Measured > Oxygen Analyzers (O2) > Continuous Oxygen Analyzers (O2) > Continuous Process Oxygen Gas Analyzer by Paramagnetic Sensor - 412 Series > Item # Model 412N4N7  


Item # Model 412N4N7, Model 412N4N7 Paramagnetic Oxygen Analyzer, ex-proof sensor housing with NEMA4 wall-mount control cabinet (two separate enclosures)

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 O2 gas. This sensor utilizes a paramagnetic measuring cell and powerful selenium cobalt magnet assembly to make use of the principle that oxygen is drawn into a magnetic field, thereby offering a method of detection that is very specific to oxygen. Sample dew point should be at least 5°C (9°F) below lowest sample temperature.

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.

Cabinets: NEMA7 Explosion-proof sensor cabinet for Class1 Div1 areas, with NEMA4 wall-mount control cabinet for non-hazardous areas (two separate cabinets)





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

Specifications

Method of Detection
Magneto-dynamic paramagnetic O2 cell

Ranges Available
With back-pressure control: 1.00, 2.00, 5.00, 25.00, 100.0 % O2
Without back-pressure control: 1.0, 2.0, 5.0 % O2

Accuracy & Repeatability
±0.5% of full scale or 0.05%, whichever is greater

Drift
±0.2% of full scale per month

Ambient Temperature Range
40 to 104°F (4 to 40°C)

Linearity
±0.5% of full scale or 0.05%, whichever is greater

Size & Weight
EX-PROOF: 61H x 33W x 31H cm (24"H x 13"W x 12"D)
NEMA 4: 51H x 41W x 26D cm (20"H x 16"W x 10"D)

Output Options
4-20 mA into 500 ohms non-isolated standard

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

Analyzer Type
O2 Analyzer

Hazardous Area Rating Options
Control Cabinet - General Purpose, Non-Hazardous
Detector Cabinet - NEMA7 Class 1 Division 1 Groups BCD


Applications
For continuous analysis of oxygen (O2) using a paramagnetic type detector, in clean dry process gas streams that contain gases that interfere with other methods of O2 measurement. For high accuracy or high purity applications.


Features
  • Highest accuracy O2 analyzer, very stable
  • Fast response (T90 - 4 to 5 seconds) and bright digital readout
  • Linear over entire 0-100% range
  • Microprocessor control
  • Non-consumable O2 detector, no periodic replacement required
  • Built in sample pump or pressure regulator, and 4-20mA outputs
  • To improve accuracy, detector can optionally be temperature-controlled and
    compensated for changes in barometric pressure in the vented sample


Options
  • Hi/Low gas, low flow, and diagnostic alarms available
  • Isolated analog, RS485 outputs available


Calibration
  • Nitrogen for zero
  • Air or analyzed calibration gas for span


Unique 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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