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Item # 7900P Series, 7900P Series Portable Gas Analyzer for Metal Heat Treating applications
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The Nova 7900P Series Portable Heat Treat Analyzers are designed for the spot-check monitoring of various combinations of gases such as oxygen (O2), methane (CH4), carbon dioxide (CO2), carbon monoxide (CO), and hydrogen (H2) for industrial processes including heat treating atmospheres.
Standard Cabinet: Bench Top
Detection Technologies:
O2 - long-life electrochemical sensor
CO - non-consumable, long-life infrared detector
CO2 - non-consumable, long-life infrared detector
CH4 - non-consumable, long-life infrared hydrocarbons detector
H2 - non-consumable, long-life thermal conductivity cell; available with internal compensation for interference effects from CO, CO2, and CH4
Models:
7900P1 - 1gas, single gas measurement of O2, CO, CO2, CH4, or H2
7900P2 - 2gas, any combination of 2gases as follows: O2, CO, CO2, CH4, or H2
7900P3 - 3gas, any combination of 3gases as follows: O2, CO, CO2, CH4, or H2
7900P4 - 4gas, any combination of 4gases as follows: O2, CO, CO2, CH4, or H2
7900P5 - 5gas, any combination of 5gases as follows: O2, CO, CO2, CH4, or H2
Note: H2 measurement may be sensitive to interferences from other gases. Full application information required before specifying H2 analyzers.
Dew Point measurement can sometimes also be added to models within the 7900P series.
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Gases Measured
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CO / CO2 / CH4 - non-consumable, long-life infrared detector
H2 - thermalconductivity detector
O2 - electrochemical sensor
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Ranges Available
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0 - 1,000 PPM to 0 - 25.0% O2
0 - 1.00% to 0 - 30.0% CO
0 - 1.00% to 0 - 50.0% CH4
0 - 1.00% to 0 - 50.0% CO2
0 - 2.0% to 0 - 50.0% H2
-40°C to +20°C or -40°F to +68°F Dew Point
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Resolution
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0.1% on % gases; 0.01% on some low ranges; 1 PPM on PPM O2; 1°F or 1°C Dew Point
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Accuracy & Repeatability
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1-2% of full scale, depending on ranges & gases measured
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Drift
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Less than 1% 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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BT approx. 10" H x 10" W x 14" D (25 x 25 x 35 cm) @ approx. 20 lbs (9 kg)
K approx. 26 x 18 x 13 cm @ 3.4 kg (10" x 7" x 5" @ 7.5lbs)
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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4-20mA non-isolated; USB serial output also available
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Analyzer Type
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Portable Multi-gas analyzer
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Primary Gas(es) to be Measured
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carbon monoxide (CO), carbon dioxide (CO2), methane (CH4), hydrogen (H2), oxygen (O2)
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For monitoring heat treating atmosphere gases in any combination of carbon monoxide (CO), carbon dioxide (CO2), methane (CH4), hydrogen (H2), oxygen (O2) and dew point. Also available for other industrial processes that include hydrogen.
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- Best value multi-gas portable analyzer
- Fast warm-up and response time
- Long-life electrochemical O2 sensor
- Sensitive infrared detectors for CO, CO2, and CH4
- Long-life thermal conductivity cell for H2
- H2 reading compensated for CO, CO2 and CH4
- Touch-screen display of gas readings
- Modular layout that is easy to maintain
- Rechargable battery operation
- Built-in sample pump, flow meter and filters
- Suitcase (K) style cabinet
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- 4-20mA recorder output / data-logging
- Dew point measurement
- Rugged bench top (BT) style cabinet also available
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- Air for Zero and O2 Span
- Analyzed calibration gas mixture to span all readings except O2
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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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