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Item # Model 412N4, Model 412N4 Paramagnetic Oxygen Analyzer, Wall Mounted NEMA4 (IP65) Enclosure Rating
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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.
Standard Cabinet: NEMA 4 Weather-proof steel cabinet with window.
Optional: 19" rack mount cabinet also available in some applications.
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Method of Detection
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Magneto-dynamic paramagnetic O2 cell
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Ranges Available
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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
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Accuracy & Repeatability
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±1% of full scale
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Drift
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±0.2% of full scale per month
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Ambient Temperature Range
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40 to 104°F (4 to 40°C). Optional: up to 130°F (55°C) with cabinet cooler
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Linearity
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±0.5% of full scale or 0.05% absolute, whichever is greater, depending on back-pressure control
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Size & Weight
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NEMA 4: 51H x 41W x 26D cm (20"H x 16"W x 10"D)
RACK MOUNT: 22H x 48W x 47D cm (8.7"H x 19"W x 16"D)
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Output Options
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4-20mA into 500 ohms non-isolated standard
Isolated 4-20mA, RS232, RS485, MODBUS, Ethernet outputs
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Alarms
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High and/or Low alarm contacts available, relay contacts SPDT 5A @ 220 VAC rating
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Analyzer Type
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O2 Analyzer
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Hazardous Area Rating Options
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General Purpose, Non-Hazardous
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For continuous analysis of oxygen (O2) in process gas streams that contain gases that interfere with other methods of O2 measurement. For high accuracy or high purity applications.
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- 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 is mounted in temperature controlled heated box
- Optional back-pressure control compensates for changes in barometric pressure at the vent
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- Hi/Low gas, Low Flow alarms available
- Isolated analog, RS232, RS485, MODBUS, and Ethernet outputs available
- Sample conditoning available for removal of moisture and/or dust
- Cabinet coolers can be fitted to most models
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- Nitrogen for zero
- Air or analyzed calibration gas for span
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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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