General Purpose
Contents
1. Vibration ON OYES aininn Location where the analyzer and sampling system are installed O Indoors O Outdoors O Other 5 Scope of Estimate O Model MG8G Paramagnetic Oxygen Analyzer set O Auxiliary gas pressure meter set O Auxiliary gas cylinder O10 0401 set O Auxiliary gas pressure reducing valve set O Zero gas cylinder O10 0401 set O Zero gas pressure deducing valve set O Span gas cylinder O10 0401 Range of to vol O set Range of to vol O set O Span gas pressure reducing valve set O Spare parts for year s set O Sampling probe set O Sampling system set Arrangements will be made separately Tokuchu sheet is required GS 11P03A03 01E 4th Edition Apr 19 2013 012. lt lt Contents gt gt lt lt Index gt gt General Specifications GS 11P03A03 01E Model MG8G General Purpose Paramagnetic Oxygen Analyzer m GENERAL The Model MG8G Paramagnetic Oxygen Analyzer measures the concentration of oxygen based on the fact that a magnet attracts gaseous oxygen The sensor employs a magnetic proportional flow rate system which has been developed based on our long and field proven experience providing improved and advanced performance Whereas Zirconia Oxygen Analyzers cannot measure oxygen in flammable gas mixtures the MG8G can measure oxygen concentration in flammable gas mixtures The converter is microprocessor based to provide ease of use and self diagnostics It can be used together with a sampling unit to measure oxygen in high temperature high pressure high dusty or high humidity process gas mixtures m FEATURES e Long life Sensor Regardless of Measurement Gas Types Aclean auxiliary gas N not process gas is always flowing past the detection unit sensor Therefore a stabilized output can be obtained for a long period uninfluenced by contamination in the process gas or by corrosive gas e 90 Response within 3 sec Since a thermistor having high sensitivity and a high speed of response directly detects variations in an auxiliary gas a response can be derived instantaneously Moreover since the thermistor does not come into contact with the process gas along service life and
3. stable high speed response can be obtained e Structure with No Movable Parts Having no movable parts the MG8G is excellent in seismic proof property and shock resistance Since the material along the process gas flow path is made of JIS SUS316 stainless steel it has excellent durability m BASIC SYSTEM CONFIGURATION PARAMAGNETIC OXYGEN ANALYZER Interference gas Compensation Function A flammable gas such as H has a little magnetism although their magnetism is very low compared to oxygen This causes error in a paramagnetic oxygen analyzer to result in error However the MG8G has a function to compensate for one type of interfering gas or multi component gas having constant of its mixture ratio using the differences in gas densities Easy Operation with Large Display The large display can display oxygen concentration thermostat temperature of the detector cell output and so on The analog bar graphs can indicate the analog output statuses for each range One touch Calibration Automatic Calibration for Labor saving Calibration is enabled by only pressing the calibration button after turning on the calibration gas zero span gas flow Further an automatic calibration mode is available if you need Multiple Self diagnosis Functions Since five types of errors including cell error analog error and temperature error are clearly displayed appropriate actions can be immediately taken 180 kPa Flow
4. 100 of the span value balance nitrogen Auxiliary gas pressure N 180 kPa Approx 35 ml min Note Auxiliary gas should not contain O gas with a concentration equal to or greater than 0 1 of the upper range value Measurement gas condition Flow 200ml min 10 The gas flow rate may be less than 200 ml min depending on the composition of the measurement gas Temperature 0 to 50 C Humidity No moisture condensation in the flow path or the sensor Warm up time Approx 2 5 hours Installation condition Ambient temperature 5 to 55 C All Rights Reserved Copyright 2007 Yokogawa Electric Corporation Humidity Power supply Power supply Voltage 100 to 115 V AC Reted voltage range Allowable voltage range Rated frequency Allowable frequency range 48 to 63 Hz Power supply Reted voltage range Allowable voltage range Rated frequency Allowable frequency range 48 to 63 Hz Power consumption 100 to 115 V AC Max 110 VA normally approx 25 VA 200 to 240 V AC Max 125 VA normally approx 35 VA 10 to 95 RH No condensing 100 to 115 VAC 90 to 127 VAC 50 or 60 Hz oltage 200 to 240 V AC 200 to 240 V AC 180 to 264 V AC 50 or 60 Hz KC Marking Korea Electromagnetic Conformity Standard Materials in contact with gas SUS316 stainless steel Fluorine contained rubber Line connection Rc1 4 Conduit connection port 27 hole Installation Indoor panel or wall mounting Structur
5. ERNAL DIMENSIONS J Conduit connection port dia 27 hole Unit mm E 3 N ql ai Y FA elg 22 194 g 216 SIE SIE e Y y al A Gas outlet Re 1 4 B Auxiliary gas inlet Rc 1 4 j C Measurement gas inlet Rc 1 4 D Purge Rc 1 8 oo 2 E Grounding terminal M4 Ki F Conduit connection port dia 27 hole G Conduit connection port dia 27 hole H Conduit connection port dia 27 hole 380 Panel Cut F02 ai Panel Mount Mounting Hole Dimensions m 388 Item Analyzer Mounting bracket Bolt M8x10 Washer Washer Bolt M8x14 Washer F6 2 ai olola Wall Mount m WIRING CONNECTION Automatic calibration Remote range Ground Output signal contact input contact input 1 2 3 4 5 6 7 8 9 T T FG CAL START R3 R2 COM 4 20mA DC RANGE CHANGE ANALOG OUTPUT High low limit alarm contact output or Maintenance mode range contact output contact output FAIL contact output 10 11 12 13 14 15 16 17 18 T R3 Hi R2 Lo COM NOT RANGE OUT HL ALM MAIT CAL FAIL CONNECTION Automatic calibration Ground solenoid valve drive signal Power supply AC 19 20 21 22 23 24 25 26 27 T T T T T T T T FG ZERO SPAN SMPL COM L N G FG SV POWER OUTPUT POWER SUPPLY A
6. UTO CAL Fo4 ai All Rights Reserved Copyright 2007 Yokogawa Electric Corporation GS 11P03A03 01E 4th Edition Nov 19 2010 00 lt lt Contents gt gt lt lt Index gt gt Inquiry Sheet for the MG8G Paramagnetic Oxygen Analyzer Please place checkmarks in the appropriate boxes and fill in the necessary information in the blanks 1 General Customer Tag No Plant name Sampling point 2 Utilities and Installation Conditions Power supply i VAC Erian Wo wast detes Hz Air supply instrument air pressure kPa Steam PPFESSUME opirriis nse iani kPa t mperat fe secseccsssicersseedoaesaseeses soees Cooling water temperature eee Distance between sampling point and analyzer AAEE EE a E E S feet Distance between analyzer and control panel Approx anason MNS eian nn feet 3 Process Conditions Concentration vol Process Gas Component Nor Max Min oJI NIaDJAJ AJ VINJ gt 12 Process pressure kPa Process temperature C Dust g Nms Water content O vol O C O F Saturated Corrosiveness O No O Yes All Rights Reserved Copyright 2007 Yokogawa Electric Corporation Subject to change without notice 4 Installation Conditions Temperature Max C Min C MaX wie F Min wc F Corrosive gases O Not present O Present
7. e Dustproof General purpose Dimension 406 W X 288 H X 216 D mm Weight Approx 18kg Characteristics Repeatability Linearity Response time Zero drift Span drift 1 or less of F S 1 or less of F S 90 response within 3 sec from changing analog output at measured gas flow rate 200 ml min 1 5 or less of F S Week 2 or less of F S Week Temperature drift 1 5 or less of F S 10 C Effects of measured gas flow rate 1 or less of F S for the rated flow rate 10 m MODEL AND SUFFIX CODES Option Description Measurement range Ser EE Paramagnetic oxygen analyzer onana 0 5 to 25 vol Oz Wetted material SUS316 Fluorine contained Power supply j fF 2 200 240V AC 50 60Hz 100 115V AC 50 60Hz Auxiliary gas W N2 gas Flow rate of auxiliary gas Standard 35 ml min Language Japanese English Auto calibration available Style code Style C m STANDARD ACCESSORIES Item Parts No Qty Description Fuse A1111EF 2 250V 2A Spanner G7050YZ 1 for adjustment of sensor angle Regulator G7033XF 1 for Auxiliary gas Mirror K9320CC 1 for adjustment of sensor angle User s Manual 1 GS 11P03A03 01E Ath Edition Apr 19 2013 01 lt lt Contents gt gt lt lt Index gt gt m EXT
8. rate approx 35 ml min Gas pressure regulator g Needle valve Gas pressure meter Q 4 m gt Analog output 0 to 1V DC 4 to 20 mA DC gt Contact output abnormal maintenance 0 3 0 5MPa Auxiliary gas N2 Filter Gas pressure regulator G7033XF Needle valve pk Flowmeter Tol 1 range selection answerback Needle valve 1X unit Feed Drain Steam inlet Steam outlet Power supply Zero gas N2 z MG8G Hi Lo alarm Y Gas outlet Gas flow 200 ml min 10 Gas pressure Gas pressure regulator regulator Span gas O2 N2 Fot ai Gas pressure ragulator for auxiliary gas is supplied as standard accessory with oxygen analyzer YOKOGAWA Yokogawa Electric Corporation 2 9 32 Nakacho Musashino shi Tokyo 180 8750 Japan Tel 81 422 52 5617 Fax 81 422 52 6792 GS 11P03A03 01E Copyright June 2004 4th Edition Nov 2010 lt lt Contents gt gt lt lt Index gt gt ESTANDARD SPECIFICATIONS Measurement Object Oxygen concentration in gaseous mixture Measurement System Paramagnetic system Measurement Range 0 5 to 0 25 vol O 3 ranges can be programmed arbitrarily within the above specified range Self diagnostic content Sensor unit error Constant temperature chamber error Analog error Memory error Calibration coefficient error Analog outp
9. ut signal 4 to 20 mA DC load resistance Maximum 550 Q Contact output Contact rating 3 A at 250 V AC or 30 V DC dry contacts Fail 1 point open or closed when error occurs user configurable Contact is activated when sensor unit error constant temperature chamber error analog error memory error or calibration coefficient error when automatic or semiautomatic calibration is enabled occurs Maintenance status 1 point closed during maintenance Range answerback or high low alarm 2 points normally de energized open Range answerback or high low alarm contact output user selectable Operate solenoid valve 3 points Switching between zero and span calibration gas and measured gas Maximum load AC 1A Contact input Input specification Contact ON 200 or less Contact OFF 100 KQ or greater Remote range switching 2 points Output ranges 1 to 3 can be switched by external contact signal Calibration start 1 point calibration start command by external contact signal Calibration methods 1 Automatic calibration at set intervals by internal timer 2 Semiautomatic calibration started by external contact input 3 Manual calibration in the field Calibration gas Zero gas N gas Note Zero gas should not contain O gas with a concentration equal to or greater than 0 1 of the upper range value Span gas Dry air instrument air O 20 95 vol or standard gas containing O gas with a concentration of 80 to
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