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 # 7200 Series, Continuous Flue Gas Analyzers
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The Nova Model 7200 Series of flue gas analyzers are specifically designed for use on flue gases from combustion processes burning gaseous fuels. The 7200 series analyzers can measure sample gases for oil or coal fired processes with the addition of a Model 7240 heated sample filter. The 7200 can also measure flue gases in the presence of acidic or corrosive samples through the use of sample pre-conditioners.
Sample gas is drawn into the analyzer from the sampling probe heated filter or sample pre-conditioner, then pumped through a condensate removal system. Any condensate formed is collected then automatically purged. Next, the dried sample gas is filtered again, then flows through a pressure regulator, PTFE liquid blocker, calibration gas valves, low flow switch, flow meter then on to the gas detectors. An optional vacuum switch at the pump inlet warns if the pre-filter is becoming plugged up.
The 7200 Series analyzers are available in any combination of O2, CO, CO2, NOx (as NO or NO + NO2), SO2, or combustibles, with separate digital readouts and outputs for each. Special sampling probes are available for high temperature applications up to 3200°F (1760°C). The 7200 Series is multi-sample point capable (consult Nova).
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Method of Detection
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% O2 by zirconia sensor when applicable
% O2, 10-1000 PPM NO, NO2 CO and SO2 by electrochemical sensor
CO2 >1000 PPM, % CO and SO2 by infrared detector
Combustibles by catalytic combustibles detector with air 'make-up' system
High accuracy % O2 by paramagnetic sensor
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Ranges Available
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0-100 PPM to 0-5% SO2
0-100 to 0-100% CO
0-100 to 0-5000 PPM NO
0-100 to 0-800 PPM NO2
0-2, 0-5, 0-10% Combustibles
0-20% CO2
0-5 to 0-25% O2
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Resolution
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0.1% on %, 1 PPM on PPM
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Accuracy & Repeatability
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±1-2% of full scale - depending on gas measured and range
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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% of step change
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Ambient Temperature Range
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32 to 122°F (0 to 50°C) @ 5-95% RH non-condensing. Lower temperatures (-5°F, -20°C) with Cold Weather Package. ºC
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Linearity
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±1% of full scale
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Size & Weight
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Dimensions and weight will vary with configurations 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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OP1 - 4-20 mA non-isolated
OP2 - 4-20 mA isolated
OP3 - 0-5 V
OP4 - 0-10 V
OP5 - RS-485
OP6 - Modbus
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Alarms
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High or low alarm contacts available for all gases and low flow
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Unique Applications
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All Nova analyzers are built using proven technologies and techniques.
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Primary Gas to be Measured
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Oxygen (O2)
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Code Numbers for Gases Measured
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O2 by electrochemical sensor
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Sampling System
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Std SS probe with unheated pre-filter (Std. probe 3/8" O.D. x 18") (9.5 x 460 mm)
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Sample Points
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1 Sample point (no sequencing)
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Display Type
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D1 - LED display (s) - Manual potentiometer calibration
D2 - LED display (s) - Manual push-button calibration
D3 - Microprocessor controller with single graphic display. Allows auto sequencing, RS-485 output, 'CAL NOW' and one-step
D4 - Same as D3 but with full auto-calibration
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Industry Type
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Flue Gas or Emissions
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