Home Gas Analyzer Indonesia Model 350 Portable O2 Combustibles Analyzer (NOVA)
Model 350 Portable O2 Combustibles Analyzer (NOVA)

In operation, a built-in sample pump draws in the flue gas sample through the stainless steel probe, 12 ft. (4 m) sample hose, condensate removal filter, secondary filter, flowmeter, then on to the oxygen and combustibles sensors. The detected O2 and combustibles are displayed on LCD digital meters which have a switchable backlight for use in dark areas. A built-in air makeup system ensures that the combustibles detector will always have sufficient O2 for proper operation regardless of sample O2 content.

A rechargeable battery provides enough power for about 6 hours of continuous operation and the analyzer can be used while it is being recharged. A red LED tells when to recharge and a green LED verifies that it is receiving recharging power. The recharger is included. The Nova 350T version indicates stack temperature for doing fuel efficiency calculations. The temperature sensor Is built into the sampling probe. Efficiency charts for each fuel are provided.

Analysis of oxygen (O2) and combustibles. For checking the combustion efficiency, and burner & control performance of furnaces, heaters, and boilers. May be used in commercial, industrial, and residential settings.

• Rugged design that is easy to operate and maintain
• Fast warm-up and response
• Long-life catalytic combustibles sensor
• Long-life electrochemical O2 sensor
• Digital readout meter with backlight
• Rechargeable battery operation
• Built-in sample pump, filter and flowmeter
• Active condensate removal
• Stainless steel probe with sample hose
• Use on flue gas from any fuel
• Pays for itself in months through fuel savings

• Recorder output of 0-1V or 4-20 mA
• Stack temperature readout (Model 350T)
• High temperature probes
• Sample pre-cooler
• Suitcase (K) style cabinet available
• AC power only operation
• Detachable/portable data logger

• On air for O2 span and combustibles zero.
• On analyzed mixture of carbon monoxide (CO), methane (CH4), or hydrogen (H2) in nitrogen for combustibles span and O2 zero.


Method of Detection: Customer replaceable electrochemical O2 sensor.
Catalytic oxidation detector for combustibles. Expected life is 2-3 years for each.
Ranges Available: 0-25.0% O2
0-5.0% or 0-10.0% combustibles
0-1800°F or 0-1000°C stack temperature (Model 350T)
Resolution: 0.1 %
Accuracy and Repeatability: ± 1% full scale, based on 20.9% O2; ± 2% of full scale combustibles
Drift: <2% of full scale per 8 hours of continuous operation
Response Time (T-90): 5-8 seconds for O2; 20-30 seconds for combustibles
Ambient Temperature Range: 32° to 105°F (0°- 40.5°C)
Linearity: ± 1% full scale, based on 20.9% O2; ± 2% of full scale combustibles
Size and Weight: WP style - approx. 11½" L x 8" W x 7¼" H @ 8 lbs (29 x 20 x 18 cm @ 3.6 kg)
K style - approx. 14" L x 10½" W x 6" H @ 12 lbs (36 x 27 x 15 cm @ 5.5 kg)
Power: AC/DC operation, 115VAC 60Hz for recharging (Other voltages available)
Output Options: 4-20 mA or 0-1 VDC
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