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 # 7900P Series, Portable Gas Analyzer for Heat Treating and Other Hydrogen-Based Industrial Processes
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The Nova Model 7900P Series Heat Treat analyzers utilize a three channel high stability infrared detector for the simultaneous measurement of CO, CO2, and CH4 in exothermic or endothermic gas mixtures. In addition, the analyzer can be supplied with a fully compensated thermal conductivity cell for H2. A separate O2 detector can also be supplied for measuring low (PPM) or percent levels of oxygen in the atmosphere gas stream. Dew point is detected by a dielectric ceramic sensor and is available in standard and low ranges. All detected gases have a separate LCD digital readout and a linear recorder output. The customer may choose any combination of gases to be measured.
The 7900P series analyzers are complete with integral sampling pump, rechargeable battery, filters, flow meter, and sampling hose. Solenoid valves are used to isolate low range dew point and O2 sensors during purges and when analyzer is not in use to prevent ambient air contamination of the sensors and greatly reduce purge time during start-up.
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Method of Detection
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Customer may select one or more combinations of CO, CO2, H2, CH2, O2, or dew point
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Ranges Available
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0-10% , 0-100.0% CH4
0-10,000 PPM, 0-50.0% O2
0-100% NH3
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) Dew Point
-148 to +68°F(-100 to +20°C) Dew Point
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Resolution
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0.1% on % versions, 10 PPM on PPM versions
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Accuracy & Repeatability
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±1% of full scale
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Drift
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±0.5 % of full scale in 8 hours.
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Response Time (T-90)
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Approximately 20-30 seconds to 90% step range, following warm-up
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Ambient Temperature Range
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0 to 50 ºC
32 to 122 ºF
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Linearity
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±1% of full scale for each gas measured
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Size & Weight
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10" H x 10" W x 14" D (25 x 25 x 35 cm) @ Approx. 20 lbs (9 kg)
Physical data may vary depending on model and options selected
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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 for each gas measured. 0-1 VDC or serial output also available
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Primary Gas to be Measured
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Carbon Monoxide (CO)
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Industry Type
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Heat Treating Atmospheres
Steel Making
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