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SG750 Stack Gas Analyzers

SG750 Stack Gas Analyzers
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General Specications Model SG750 Stack Gas Analyzer GENERAL The SG750 Stack Gas Analyzer consists of an infrared gas analyzer, a zirconia oxygen analyzer, and a sampling unit. The SG750 can simultaneously measure up to ve components: sulfur dioxide (SO2), nitrogen oxides (NOX), carbon monoxide (CO), carbon dioxide (CO2) and oxygen (O2). FEATURES 1. Simultaneously measures up to ve gas components The SG750 uses a combination of an infrared gas analyzer(s) and a dedicated zirconia or paramagnetic oxygen analyzer to simultaneously determine concentrations of up to ve gas components - NOX, SO2, CO, CO2 and O2. 2. Minimizes the effects of interference from other gas components The use of interference compensation in the analyzer virtually eliminates the effects of interference from other gas components. 3.Maintenance can be performed from front side, thus saving the installation space. Unitized structure of the analyzing block and gas sampling module enables better maintenance. 4. Provides a wealth of functions The SG750 provides a variety of standard functions, including reliability-enhancing self-diagnosis, auto matic calibration, correction to O2 values, averaging, high and low limit alarms, and more. 5. Wide dynamic range The SG750 is highly sensitive with a wide dynamic range which can be switched up to 1:25 and which can be changed arbitrarily. SAMPLING SYSTEM CONFIGURATION Example 1: Five-Component Gas Sampling System Configuration SO2 1st range: less than 500 ppm and sample gas pressure range is -1 to 5 kPa or -3 to 3 kPa, Standard type. <1> Probe <8> Switch Box Air Inlet Teflon Tube, Φ10/Φ8 <7> 3-Way Solenoid Valve <3> Pump Needle Valve <2> Gas Conditioner Membrane Filter Flow Checker NO2/NO Converter Membrane Filter Solenoid Valve Infrared Analyzer NO, SO2 ZERO Pressure Regulator Drain Filter Regulator 30 kPa Yokogawa Electric Corporation 2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 Japan Tel.: 81-422-52-5617 Fax.: 81-422-52-6792

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2 <5> Standard gas Used for zero and span calibrations of the infrared gas analyzer. When a zirconia oxygen analyzer is used, instrument air (dew point of -10°C or less) and atmospheric air can be used for zero calibration of NOX, SO2, CO2, and CO analyzers and for span calibration of the oxygen analyzer. <6> Zirconia oxygen analyzer Measures oxygen concentrations (0 to 25%) of sample gas. Used in combination with an infrared gas analyzer. <7> 3-way solenoid valve Incorporated when using atmospheric air instead of air standard gas. <8> Switch box Contains 7 on/off switches for the following...

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3 SYSTEM CONFIGURATION For the selection of instruments, refer to the Inquiry Form on pages 24 to 26. External Primary filter Type F filtering probe (K9718VC) Unnecessary Type M1E filtering probe (K9219ED) Unnecessary Type M2 open type probe (K9718PD) Type M1E external primary filter (K9718TA: Electric heating type) OR Type M3 open type probe (K9718QA) Type MS external primary filter (K9718UA: Steam heating type) Type M2E filtering probe (K9718VE) Unnecessary All Rights Reserved. Copyright © 2010, Yokogawa Electric Corporation

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4 Ambient External Drain Temperature Separator (K9641EA) -5 to 40°C Used when the tilt of the sampling tube between the probe and the analyzer is 15° or less. Use two drain separators when the SO2 concentration is 500 ppm or greater. External Tube Sampling tube (10 mm O.D./8 mm I.D.) SG8SAP-L Specify the length in meters (50 m max.) Stack Gas Analyzer Standard type Pressure Reducing Valve (L9850BA) A standard gas Necessary for every cylinder contains standard gas. 3.4L Unnecessary (Can’t use this unless anti-freeze measures can be taken.) Heating sampling tube (10 mm O.D./8 mm I.D.)...

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5 O2 correction: NOX, SO2, and CO are corrected for O2 reference value. The results are displayed, and output as a 420 mA DC signal. Example: 21 - On O2 correction concentration = 21 - O xCS S Where: CS : NOX, SO2 and CO measured concentration On : O2 reference value OS : O2 concentration Setting range: 0 to 19%, (factory default: 4%) Reference: O2 correction reference value (1) Oil red boiler 4%, (2) Gas red boiler 5%, (3) Solid fuel red boiler/oil heating furnace 6%, (4) Coke oven 7%, (5) Incinerator 12%. O2 corrected average and average O2 values: - NOX, SO2, and CO are corrected to O2...

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6 Sample conditions Temperature : 1400˚C or less Dust : 500 mg/Nm3 or less Pressure : -1 to 5 kPa, -3 to 3 kPa, -5 to 1 kPa Note: For pressures outside the above range, consult with Yokogawa. Flow rate: Approximately 2 L/min Sample gas components and their range: 5000 ppm or less • NOX: • SO2 (*): 1000 ppm or less • NO2: 10 ppm or less • CO2: 20 vol% or less • CO: 5000 ppm or less • O2: 0 to 21 vol% • NH3: Should be excluded • H2O: 0 to 20 vol% • HF, H2S: 1 ppm or less • N2: Carrier gas (*) Probes and External Primary Filters 2.1 Filtering probes The Type F ltering probe is Yokogawa’s...

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7 2.2 Open type probes and external primary lters The open type probe should be selected according to the dust volume, moisture content, temperature and SO2 concentration range of the sample gas. The external primary lter should be selected according to the heating method (utility). For the conditions for selecting an open type probe and an external primary lter, refer to Table 2, “Selection of Probe and External Primary Filter” in the Inquiry Form on pages 24, 25. • Open type probes Type M2 Open Type Probe Type M3 Open Type Probe Part number Operating temperature range Probe material...

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8 Model and sufx codes 1. SG750 Stack Gas Analyzer MODEL SG750 Suffix Code Option Code Measuring -A component -B -C -D -E -F -G -H -J O2 Analyzer Range of NOX Range of SO2 Range of CO2 Range of CO Range of O2 Refer to Table B of next page to select the suffix code for each measuring range. Suffix code of "NN" or "04" is selectable for CO2 range . 0-10% (1st range)/0-25% (2nd range) 0-25% (1st range)/None (2nd range) Not available -A -B -C -D -E -F -G -H -J -K -L -M -P -Q -N 1 Isolated output of analog 2 instantaneous value after O2 3 correction 4 (note 1) 5 (note 2) 6 7 N Isolated output of...

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SG750 Stack Gas Analyzers 26Pages

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SG750 Stack Gas Analyzers
26Pages