Canada
270 Sherman Avenue N.
Hamilton, ON L8L 6N5
Phone: (905) 545 2003• Fax: (905) 545 4248 |
United States
1925 Pine Avenue
Niagara Falls, NY 14301
Phone: (716) 285-0418 • Fax: (716) 282-2937 |
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Email: sales@nova-gas.com or websales@nova-gas.com
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Item # 7900 Series, Continuous Heat Treat Atmosphere and Industrial Process Gas Analyzer Systems
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The Nova 7900 Series Heat Treat Analyzer System utilizes high stability infrared detectors for the simultaneous measurement of CO, CO2, and CH4. In addition, the analyzer can also be supplied with a non-consumable, long life thermal conductivity cell for hydrogen that is compensated for the interference effects of CO, CO2, and CH4. This ensures that Hydrogen will always read correctly regardless of the background gas composition. A long life electrochemical sensor is used for PPM or % O2 analysis. In most cases, sensors are installed in a temperature controlled box to improve reading accuracy. All detected gases have a separate digital readout and linear recorder output. Various versions available for either exothermic or endothermic mixtures, or for other industrial process gases.
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Method of Detection
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Dielectric ceramic sensor for Dew Point
Electrochemical sensor for O2
NDIR infrared detector for CO, CO2, CH4 & NH3
Thermal conductivity cell for H2
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Ranges Available
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0-10%, 0-100.0% CH4
0-100% NH3
0-10000 PPM, 0-50.0% O2
0-2.00%, 0-100.0% CO2
0-20.0%, 0-100.0% CO
0-40.0%, 0-100.0% H2
-10 to 80°F (-23 to 26°C), 48 to 68°F (-100 to 20°C) D.P.
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Resolution
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0.1%, 1 PPM, 1°F (Dew Point)
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Accuracy & Repeatability
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±1% of full scale on all gases
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Drift
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Less than 2% of full scale per month
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Response Time (T-90)
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20-30 seconds to 90% step change
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Ambient Temperature Range
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32 to 122°F (0 to 50°C), Lower temperatures (-5°F, -20°C) with Cold Weather Package
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Linearity
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±1% of full scale
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Size & Weight
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Physical data will vary depending on model and enclosure required
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Power
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115 VAC, 60 Hz
220 VAC, 50 Hz
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Output Options
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4-20 mA into 500 ohms non-isolated standard
Isolated 4-20 mA, 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
Low flow alarm
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Unique Applications
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Special models of the 7900 Series analyzers can be supplied with options such as free standing cabinets, built-in moisture removal systems, cabinet coolers, controllers, hi/low alarms, low flow alarm, 4-20 mA outputs, recorders, etc. 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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