Specification
APPLICATIONS
Continuous analysis of flue gas for any combination and range of O2, CO, CO2, SO2, NOx ( NO or NO + NO2) or combustibles from combustion processes.
FEATURES
⢠Best value continuous flue gas analyzer with modular sample conditioning
⢠Sensitive infrared detectors for % and > 1000PPM CO, CO2, or SO2
⢠Long life electrochemical sensor for 10-1000 PPM CO, NO, NO2, and SO2
⢠Catalytic sensor with air make up for % combustibles
⢠Fast response time and bright digital readout for each gas
⢠Microprocessor based with push button calibration
⢠Easy to maintain modular layout
⢠Sample preparation includes moisture removal
⢠4-20mA outputs
OPTIONS
⢠Hi/ Low gas, low flow, and diagnostic alarms available
⢠Isolated analog, RS-232, RS-485, MODBUS, and Ethernet outputs available
⢠Cabinet purge system available for use in hazardous areas
⢠One-step ' cal-now' button with touch screen LCD display
⢠Full automatic calibration with touch screen LCD display and low flow switch
⢠Cold weather package for operation to -5° F ( -20° C)
⢠Cabinet coolers can be fitted to most models
⢠Sensors mounted in heated box for reduced drift
⢠High temperature filters and probes
⢠Optional sample conditioning includes :
1) Continuous water prewash system for acidic fuel gases present but not to be analyzed ( Model 7300)
2) Nafion-Tube⢠based sample dryer for high accuracy analysis of acidic samples, where NO2 or SO2 are to be measured ( Model 7250)
3) Heated stack filter for removal of dust from high dust load ( > # ) samples
( Model 7240)
4) Calibration gas injected at heated stack filter to minimize discrepancies due to absorption of soluable gases.
5) Multiple sample point sequencer which allows multiple samples to be selected and analyzed ( see Model 402AS)
DESCRIPTION
The Nova Model 7200 Series of flue gas analyzers are specifically designed for use on the flue gases from com-
bustion 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 collects and is purged as it reaches a limit. Next, the dried sample gas is filtered again and the flows through a PTFE liquid block, calibration gas valves, pressure regulator, flow meter then on to the gas detectors.
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 3200Ã F ( 1760Ã C) . The 7200 Series is multi-sample point capable ( consult Nova) .
SPECIFICATIONS
Method of Detection : % O2, 10-1000 PPM NO, NO2 CO, SO2 by electrochemical sensor
High accuracy % O2 by paramagnetic sensor
% O2 by zirconia sensor when applicable
CO2, SO2, and > 1000 PPM & % CO, by infrared detector
Combustibles by catalytic combustibles detector with air ' make-up' system
Ranges Available : 0-5, 0-10, 0-25% O2
0-20% CO2
0-100 PPM NOx ( as NO)
0-100, 0-1000 PPM, 0-5% SO2
0-100, 0-250, 0-500, 0-2000 or 0-10, 000 PPM CO
0-2, 0-5, 0-10% Combustibles
Other ranges available for all gases
Resolution : 0.1 % on % , 1 PPM on PPM
Accuracy and Repeatability : ± 1% of full scale - all gases
Drift : Less than 2% of full scale per month
Response Time ( T-90) : 20-30 seconds to 90% of step change
Ambient Temperature Range : 32-122° F ( 0-50° C) @ 5-95% RH non-condensing. Lower temperatures ( -5° F, -20° C) with Cold Weather Package. Sample dew point should be at least 9° F ( 5° C) below lowest sample temperature.
Linearity : ± 1% of full scale
Size and Weight : Dimensions and weight will vary with configurations selected
Power : 115VAC 60Hz ( 220VAC 50Hz available)
Output Options : 4-20mA into 500 ohms non-isolated standard Isolated 4-20mA, RS-232, RS-485, MODBUS, Ethernet outputs optional
Alarms : High or low alarm contacts available for all gases and low flow
Indomonster Priority