Home Gas Analyzer Indonesia Model 376 Portable O2-CO-CO2-NOx Flue Gas Analyzer (NOVA)
Model 376 Portable O2-CO-CO2-NOx Flue Gas Analyzer (NOVA)

In operation, a built-in sample pump draws in the flue gas sample through the S.S. probe, 12 ft. (4 m) sample hose, condensate removal filter, secondary filter and flowmeter, and then on to the four sensors. The detected O2, CO2, CO, and NOX are displayed on digital meters which have a switchable backlight for use in dark areas. The sensors do not require special SO2 scrubbing chemicals as do some types of analyzers.

The Nova 376T version also indicates stack temperature for doing fuel efficiency calculations. The temperature sensor is built into the sampling probe. A rechargeable 'gel cell' battery provides enough power for about 8 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.


For the analysis of oxygen (O2), carbon monoxide (CO), carbon dioxide (CO2) and oxides of nitrogen (NOx as NO) in flue gas from furnaces, heaters, and boilers. May be used on commercial, industrial, and residential combustion equipment.

• CO2 actually measured by infrared detector, not calculated
• Rugged design that is easy to operate and maintain
• Fast warm up and response
• Dual CO range: 0-2000 PPM & 0-4.00%
• Rapid reading recovery after CO or NO 'overdose'
• Digital readout meters with backlight
• Rechargeable battery operation
• Built-in sample pump, filter and flow meter
• Continuous condensate removal allows long term unattended operation
• Weatherproof (WP) cabinet with clear Lexan cover
• Stainless steel probe with sample hose
• Use on flue gas from any fuel
• Pays for itself in months through fuel savings

• Outputs of 0-1V or 4-20 mA
• Stack temperature readout (376T)
• Special sampling probes
• Suitcase (K) style cabinet available
• AC only power operation
• Gas alarms with LED warning
• Detachable/portable data logger

• Air for O2 span and CO/CO2 zero
• Analyzed gas mixtures of CO2, CO, and NO in nitrogen for span


Method of Detection: Customer replaceable electrochemical O2, CO, and NO sensors.
Solid state infra red detector for CO2.
Ranges Available: 0-25.0% O2
0-20.0% CO2
0-2000 PPM and 0-4.00% CO - Switch selectable
0-200 to 0-2000 PPM NOX (as NO) ranges available
0-1800°F (0-1000°C) stack temperature (Model 376T)
Accuracy and Repeatability: Within ± 0.1% O2 and CO2; ± 2 PPM CO and NO
Drift: 2% full scale per 8 hours of continuous operation
Response Time (T-90): 10-15 seconds for O2; 20-30 seconds for CO, NO, and CO2
Ambient Temperature Range: 32° to 105°F (0-40°C)
Linearity: ± 1.0% of full scale for each gas measured
Size and Weight: WP style approx. 16" L x 8" W x 7¼" H @ 13 lbs (41 x 20 x 18 cm @ 5.6 kg)
K style - approx. 18" L x 12" W x 7" H @ 15 lbs (46 x 30.5 x 18 cm @ 6.8 kg)
Power: 115VAC 60Hz for recharging (other voltages available)
Output Options: 4-20 mA or 0-1 VDC
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