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Model MG8G Paramagnetic Oxygen Analyzer

1. Sensor Unit Fuses in constant temperature chamber 7 o o o o o o DELE STANT S O a o St A Ee eeseamscmass E E P SIRI DOLEO OS OMS RG a 2 al lo O S o External Connection Terminals Power switch F5 2E ai Figure 5 1 Name of Components IM 11P03A03 01E lt 6 PIPING gt 6 1 6 PIPING 1 Piping The standard line diagram is shown in figure 6 1 Use 6 4 mm diameter metal tubes for lines and connect the tubes in such a way that there are no leaks 2 Installation of the pressure regulator and pressure gauge Install the pressure regulator and pressure gauge 0 to 2 kPa G in the auxiliary line Use the pressure regulator to set a specified pressure For pressure settings see Section 8 2 Setting the Auxiliary Gas Pressure 3 Caution on piping This oxygen analyzer uses calibration gases for zero and span calibrations Install the lines so that the sample and calibration gases can be switched 4 Purge lines If the atmosphere or sample gas contains corrosive or combustible gases or if the atmospheric temperature is likely to rise too high purge the instrument with clean air Connect a copper or stainless steel tube to the purge air inlet shown in Figure 6 2 to supply air at a pressure of about 50 kPa G 5 Gas outlet exhaust Gas from the instrument should be vented to the atmosp
2. eene 15 4 15 2 1 Fluctuations in Readings nen nnnn san nnnnnnn nennen 15 4 15 2 2 Driftin Readings certe tte i n tdg e P Lg e tg 15 4 15 2 3 Short Term Shift in Headmgs nennen nnnnnnnennnnnnn 15 4 15 3 When Calibration Cannot Be Executed esses 15 4 15 4 In the Event of Power Failure eeeeeeseeeesseeeeeseeeeneentne nennen 15 4 15 4 1 Instantaneous Power Failure sse 15 4 15 4 2 When the Power Returns sosirii disadana ini aaia 15 4 16 MEASUREMENT PRINCIPLE cccsssceesesseceeeesseeeeeeneeeeeseseeeeeeeees 16 1 16 1 Measurement Principle sisiccccaccccsacecscccasececatecesaeecanndecnsecasasecnsetacceesanedecaentaceness 16 1 Customer Maintenance Parts List CMPL 11P03A01 01E Revision Information T i IM 11P03A03 01E lt 1 NOTICE ON HANDLING gt 1 1 1 NOTICE ON HANDLING It is highly recommended that you read this instruction manual carefully before using this analyzer so that the analyzer an operate in the best condition All installation conditions should be provided in compliance with these specifications 1 4 Precaution in Unpacking This analyzer is a precision instrument Beware of the effect of shock on the analyzer especially while unpacking and avoid dropping it or letting it hit another object 1 2 Check of Model Name and Specifications The nameplate on the inside of the
3. N wo N 194 216 A Gas outlet B Auxiliary gas inlet C Sample gas inlet D PURGE E Grounding terminal F Conduit connection port G Conduit connection port H Conduit connection port J Conduit connection port 380 Panel cut Rc 1 4 Rc 1 4 Rc 1 4 Rc 1 8 M4 dia 27 hole dia 27 hole dia 27 hole dia 27 hole 260 F3 1E ai IM 11P03A03 01E lt 6 INSTALLATION gt 4 1 4 4 1 INSTALLATION This chapter describes how to install the analyzer and carry out wiring and line work Installation Location Take the following requirements into account when choosing the place of installation 1 Low vibration and mechanical shock levels 2 Low atmospheric corrosive gas content If corrosive gas content is too highly atmospheric purge the case 3 Diurnal temperature difference should be less than 15 degree C 4 No exposure to direct sunlight 5 No direct exposure to high radiation heat steam hot air temperatures etc 6 Low electromagnetic field effect Do not lay wiring parallel to power cables and wherever possible do not install the analyzer near motor electromagnetic relays pumps etc 7 Easy access for maintenance and inspection IM 11P03A03 01E 4 2 lt 4 INSTALLATION gt 4 2 Installation Procedure This oxygen analyzer can be panel or wall mounted 1 Panel mounting Remove the mounting brackets attached to the side of the mainframe and insert the mai
4. b Setthe desired preset value using the SHIFT INCR and DP keys Press the EXEC key to accept A preset value should be represented as a percentage of the output i e 4 mA 0 and 20 mA 100 When setting a preset value to 4 mA enter 0 and to 20 mA enter 100 The setting range is from 1096 2 4 mA to 11096 21 6 mA The minus sign will appear in the leftmost digit by pressing the INCR key repeatedly to increase the blinking number 0 1 2 9 E and returns to 0 IM 11P03A03 01E lt 11 PARAMETER SETTINGS gt 11 3 11 2 Setting the Fail Contact The Fail contact terminals 15 and 16 is activated when an error occurs The contact can be programmed to be normally energized the contact will open when an error occurs or normally deenergized the contact will close when an error occurs The contact is open when the instrument is not powered For details about errors refer to Chapter 15 Troubleshooting 1 2 3 Switch to MAINT mode and enter the password Change the Function Number to 45 Set the Fail contact state using the SHIFT and INCR keys To set the contact to be normally deenergized the contact closes when an error occurs enter O and to be normally energized the contact opens when an error occurs enter 1 Press the EXEC key to accept 11 3 Action of the Maintenance Status Contact The maintenance status contact terminals 13 and 14 is clo
5. 8 4 5 Switch to MAINT mode and enter the password Change the Function Number to 12 Set the upper range value for range 1 using the SHIFT and INCR keys Press the EXEC key to accept For example for the range of 0 to 25 Oz enter 025 Now range 1 is set to 0 to 25 In the same manner set the upper range values for ranges 2 and 3 in Function Numbers 13 and 14 respectively Change the Function Number to 11 Select the desired range 1 for range 1 2 for range 2 or 3 for range 3 using the SHIFT and INCR keys Press the EXEC key to accept IM 11P03A03 01E 10 4 lt 10 START UP gt 10 5 Executing Calibrations 10 5 1 After start up and switching to MEAS mode zero and span calibrations must be executed Always a zero calibration should be performed prior to a span calibration Chapter 13 Calibration explains the calibration principle in detail This section describes how to set the concentrations of calibration gases and how to perform zero and span calibrations manually Calibration Gas Requirements As the zero gas use nitrogen with a minimum purity of 99 99 As the span gas use a gas with an oxygen concentration of 80 to 100 of the upper range value of set range e g for the range of 0 to 25 the span gas should be 20 to 25 oxygen 10 5 2 Setting Calibration Gas Concentrations 1 Switch to MAINT mode and enter the password 2 Change the Function
6. Figure 14 1 Fuse Removal IM 11P03A03 01E lt 14 INSPECTION AND MAINTENANCE gt 14 3 14 5 Other Instructions 1 Forinspection and maintenance of sampling systems read corresponding user s manuals 2 Forthe cleaning and overhaul of the sensor unit consult Yokogawa 14 6 Replacing the Limited Life Component The following component has a limited life It is recommended that it should be replaced approximately every five years As for the replacement ask Yokogawa Power unit located on the back of the terminal block and normally not visible IM 11P03A03 01E lt 15 TROUBLESHOOTING gt 15 1 15 TROUBLESHOOTING This chapter describes errors detected by the self diagnostic function and troubles during measurement such as output fluctuations 15 1 15 1 1 Errors and Remedies Checking the Error Code An error will occur if a failure is detected in the sensor constant temperature chamber or analyzer s internal circuit When an error occurs the FAIL lamp turns on and the Fail contact is activated As for the calibration coefficient error the FAIL lamp turns on and the Fail contact is activated only when semiautomatic or automatic calibration function is enabled To check an error code follow the procedure below 1 2 displayed 3 Switch to MAINT mode and enter the password If no error is being generated the DATA display shows 0000 Change the Function Number to 40 Press the EX
7. Set to 1 to start the automatic calibration function Press the EXEC key The timer starts counting and the AUTO CAL lamp turns on A CAUTION For automatic calibration wiring and piping for automatic calibration are required If the time to start a calibration is reached while the instrument is in MAINT mode the automatic calibration will be canceled Likewise if the time to start a calibration is reached during manual calibration or semiautomatic calibration including the purge time the automatic calibration will be canceled If the instrument is switched to MAINT mode by key operation while an automatic calibration is being conducted the automatic calibration is aborted If the sum of the zero calibration time span calibration time and purge time is longer than the calibration interval the next calibration will be canceled The internal timer works even if the power supply to the instrument is interrupted while the automatic calibration function is enabled After power is restored calibrations will be executed on schedule there is no delay due to the power interruption Note that the internal timer does not work when the power supply is interrupted during the calibration time Once the automatic calibration function is turned off by setting in Function No 57 the timer will be reset It is recommended that after the settings for the automatic calibration have been completed manual calibration should be conducted onc
8. YK CMPL 11P03A01 01E Yokogawa Electric Corporation Blank Page Revision Information e Title Model MG8G Paramagnetic Oxygen Analyzer User s Manual O Manual No IM 11P03A03 01E Nov 2008 4th Edition Revised and style change from B to C Aug 2007 3rd Edition Revised and Corrected over all e g After Sales Warranty Revision Information etc are added IM Format and Style renewal As a result of changing Data Source from paper to electric files and of applying Indesign software Mar 1990 2nd Edition Apr 1989 1st Edition Newly published W f you want have more information about Yokogawa products you can visit Yokogawa s home page at the following web site Home page http www yokogawa com W Written by Environmental amp Analytical Products PMK Group IA Div Product Business Center Yokogawa Electric Corporation W Published by Yokogawa Electric Corporation 2 9 32 Nakacho Musashino shi Tokyo 180 8750 JAPAN W Printed by KOHOKU PUBLISHING amp PRINTING INC IM 11P03A03 01E
9. 3 Cable Specifications inttr ani 7 2 7 4 External Wiring 7 2 7 4 1 Power Wiring and Grounding ecce 7 2 7 4 2 Analog Output ln e 3 ata eoe eR 7 3 7 4 3 Wiring for Solenoid Valves for Automatic Calibration 7 3 7 44 Contact Output WINN e EE 7 4 74 5 Contact Input Wirllig EE 7 5 IM 11P03A03 01E vi 10 11 12 IM 11P03A03 01E lt CONTENTS gt PREPARATIONS can aiaa aada aeara de aaea aiia 8 1 8 1 Adjustment of the Level in the Sensor Unit uunseessnsnennnennnonnnnnnnonnnennnannnannn 8 1 8 2 Setting the Auxiliary Gas Pressure eene 8 2 8 3 Checking Sample Gas errar 8 2 OPERATIONS eu ee 9 1 9 1 10 01 1 ALON KOYS RE 9 1 9 2 Displays IN TC 9 2 9 3 BaSic Operation fe 9 3 9 3 1 Switching from MEAS Mode to MAINT Mode nn 9 3 9 3 2 Entering the PassWOoTd ett deine etes 9 3 9 3 3 Changing the Function Number 9 4 9 3 4 Returning to MEAS Mode from MAINT mode ssec 9 4 9 3 5 Entering Valles cette Boe ueboUe ia 9 5 9 3 6 Selecting NR E 9 6 9 3 7 Functions Nu rmb6ers 2 ci crei iniret ea 9 7 START UP H N 10 1 10 1 Supplying FOE geseet iti eit Ie ro ana 10 1 10 2 Warm Up EE 10 2 10 3 Analog Output Loop Check cooococoncccociccnnoccnnonennnnncnnnncnnoncnnnncnnnnc nan n caen cnn 10 3 10 4 Setting the Output Range unnesnnnnnnn
10. N2 gas is required in accordance with the measurement principle of the instrument Before supplying power to the instrument be sure to introduce the auxiliary gas IM 11P03A03 01E 2 2 lt 2 OVERVIEW gt 2 2 System Configuration with Automatic Calibration Atmosphere vent Solenoid valve oe Modele Analog output Zero gas gt gt H HHan Il Al gt Contact output Contact input Bua Power supply Span gas gt gt Sampling gas Filter gt V Flow meter P N Auxiliary gas gt ___ _ _ gt V Valve Pressure Pressure regulator gauge F2 2E ai Figure 2 2 System Configuration with automatic Calibration A CAUTION 1 For sample gases use a normally open solenoid valve For other gases use a normally closed solenoid valve 2 Use the other values if the solenoid valves fail IM 11P03A03 01E lt 3 SPECIFICATIONS gt 3 1 3 SPECIFICATIONS 3 1 Standard Specifications Measurement Object Oxygen concentration in gaseous mixture Measurement System Paramagnetic system Measurement Range 0 5 to 0 25 vol Oz 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 output signal 4 to 20mA DC load resistance Maximum 5500 Contact output Contact rating 3A at 250
11. No 98 The version of the firmware installed on the instrument can be checked in Function No 98 IM 11P03A03 01E 13 2 13 5 lt 13 OTHER FUNCTIONS gt Initializing Parameters Function No 99 The instrument can be initialized to the factory default settings which are summarized in Table xxxx 1 2 3 4 Switch to MAINT mode and enter the password Change the Function Number to 99 The DATA display shows rES Press the EXEC key This has not yet changed the settings settings Table 13 1 Factory Default Settings Turn the power off and on again Now the instrument has been initialized to the factory default jos Function Factory Default 00 Entering password 01 Executing calibrations 02 Setting calibration gas concentrations ZERO key 0 000 SPAN key 20 95 03 Checking calibration coefficients 04 Setting output hold function during calibration 0 enabled 05 Initializing calibration coefficient 10 Setting remote range switching contact input 1 disabled 11 Selecting range 3 range 3 12 Setting span for range 1 005 0 to 5 range 13 Setting span for range 2 010 0 to 1096 range 14 Setting span for range 3 025 0 to 25 range 16 Fixed analog output 20 Setting low limit alarm 00 00 21 Setting high limit alarm 25 00 22 Setting high low limit alarm function 0
12. Number to 02 3 Press the SPAN key 4 Setthe oxygen concentration of the span gas using the SHIFT INCR and DP keys Press the EXEC key to accept The setting range is 0 5 to 25 O 10 5 3 Manual Calibration Azero calibration should be performed first and then a span calibration Zero and span calibrations must be conducted in the first calibration after start up and after the initialization of the calibration coefficient 2 Change the Function Number to 01 The DATA display shows the current oxygen concentration Switch to MAINT mode and enter the password 3 Press the ZERO key Turn off the sample gas flow and apply the zero gas at the specified flow rate in the sample gas line When solenoid valves for automatic calibration are installed pressing the ZERO key closes the solenoid valve in sample gas line and opens the solenoid valve in zero gas line 4 The oxygen concentration on the DATA display changes When the reading has stabilized completely press the EXEC key The instrument is now calibrated to that value as the zero point 5 Press the SPAN key Turn off the zero gas flow and apply the span gas at the specified flow rate When solenoid valves for automatic calibration are installed pressing the SPAN key closes the solenoid valve in zero gas line and opens the solenoid valve in span gas line 6 The oxygen concentration on the DATA display changes When the reading has stabilized c
13. S for the rated flowrate 10 IM 11P03A03 01E 3 4 lt 3 SPECIFICATIONS gt 3 3 Model and Suffix Code Suffix Code Option Code Specification aida jene Paramagnetic oxygen analyzer ae 0 5 to 25 vol O2 ciate ciate ala SUS316 Fluorine contained rubber A a gt 200 to 240V AC 50 60Hz Measurement range Wetted Material Power supply Tm 100 to 115V AC 50 60Hz Auxiliary gas Lu N2 gas Flow rate of auxiliary gas L Standard 35ml min Language HI Japanese EE English Auto calibration 8 JC j available Style code Style C Note For measurement ranges of 0 5 vol O2 and less the MG8E flameproof type paramagnetic oxygen analyzer may be used For applicability assessment we will receive your request as a Customized Order T3 1E ai STANDARD ACCESSORIES Item Parts No Qty Description Fuse A1111EF 250V 2A Spanner G7050YZ Regulator G7033XF Mirror K9320CC User s Manual for adjustment of sensor angle for Auxiliary gas for adjustment of sensor angle e jajaja Nh T3 2E ai IM 11P03A03 01E lt 3 SPECIFICATIONS gt 3 5 3 4 70 25 65 External Dimensions PARAMAGNETIC OXYGEN ANALYZER Panel thickness 10 mm or less e Unit mm
14. VAC or 30 VDC 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 deenergized 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 2000 or less Contact OFF 100 kO 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 IM 11P03A03 01E lt 3 SPECIFICATIONS gt Calibration gas Zero gas Nz gas Note Zero gas should not contain O2 gas with a concentration equal to or greater than 0 1 of the upper range value Span gas Dry air instrument air O2 20 95 vol or standard gas containing O gas with a concentration of 80 to 10096 of the span value balance nitrogen Auxiliary gas pr
15. als on hand for convenient reference Please read the information thoroughly before using the product The purpose of these user s manuals is not to warrant that the product is well suited to any par ticular purpose but rather to describe the functional details of the product No part of the user s manuals may be transferred or reproduced without prior written consent from YOKOGAWA e YOKOGAWA reserves the right to make improvements in the user s manuals and product at any time without notice or obligation f you have any questions or you find mistakes or omissions in the user s manuals please con tact our sales representative or your local distributor B Warning and Disclaimer The product is provided on an as is basis YOKOGAWA shall have neither liability nor responsibil ity to any person or entity with respect to any direct or indirect loss or damage arising from using the product or any defect of the product that YOKOGAWA can not predict in advance B Notes on Hardware Appearance and Accessories Check the following when you receive the product Appearance Standard accessories Contact our sales representative or your local distributor if the product s coating has come off it has been damaged or there is shortage of required accessories Model and Suffix Codes The name plate on the product contains the model and suffix codes Compare them with those in the general specification to make sure the
16. be opened once and then closed again for the next calibration During MAINT mode the calibration start contact input signal is not accepted During manual calibration or automatic calibration the calibration start contact input signal is not accepted If the instrument is switched to MAINT mode by key operation while a semiautomatic calibration is being conducted the calibration will be aborted IM 11P03A03 01E lt 12 CALIBRATION gt 12 5 12 3 3 Automatic Calibration Calibration can be automatically executed for preprogrammed calibration times at preprogrammed intervals For the automatic calibration the following should be set For the zero calibration time Function No 52 span calibration time Function No 53 and purge time Function No 54 refer to Section 12 3 2 Semiautomatic Calibration Initial wait time Function No 50 The amount of time until the first calibration is executed after the automatic calibration function was started The setting range is from O day 0 hour to 99 days 24 hours When the time is set to 00 day 00 hour the initial wait time is equal to the time set as the calibration interval Function No 51 Calibration interval Function No 51 Set the time interval for automatic calibration The setting range is from O day 1 hour to 99 days 24 hours Execution of span calibration Function No 55 Set whether or not to execute span calibration To execute only zero calibration and no
17. by performing zero and span calibration again If the calibration coefficient is outside the specification range due to a sensor drift or characteristics change with time initialize the calibration coefficients and perform zero and span calibration again When the error occurs during semiautomatic or automatic calibration remove the causes and reset the error status using the following procedure 1 Switch to MAINT mode and enter the password 2 Change the Function Number to 42 The DATA display shows EG 3 Press the EXEC key to reset the calibration coefficient error status IM 11P03A03 01E 15 4 lt 15 TROUBLESHOOTING gt 15 2 Faulty Readings During Measurement This section describes faulty readings during measurement and possible causes 15 2 1 Fluctuations in Readings Check that the flow rate of the sample gas is the specified one and is stable Check the piping joints or connections in the line between the auxiliary gas cylinder and the analyzer for leaks Check that the temperature of the constant temperature chamber is stable Check the power supply voltage for fluctuations e Check that the analyzer is not exposed to direct sunlight or radiant heat from a heat source such as a furnace 15 2 2 Drift in Readings Check that the supply pressure of the auxiliary gas is appropriate If the auxiliary gas pressure falls below the specified supply pressure the output will drift as the pressure drops 15
18. instrument was in steady state before the power failure IM 11P03A03 01E lt 16 MEASUREMENT PRINCIPLE gt 16 1 16 MEASUREMENT PRINCIPLE 16 1 Measurement Principle A diagram of the principle is shown in figure 16 1 When the sample gas contains no oxygen molecules the right and left flow rates of the auxiliary gas N2 QL and Qr are equal or Qs QL If oxygen molecules are included in the gas flow rate Qu on the magnetic field generating side is less than Qr due to the force with which the magnetic field acts on the oxygen molecules establishing Qr gt QL The difference in the flow rate AQ Qr Q is proportional to the percentage of oxygen molecules in the measuring gas The thermister sensor is operated in the constant resistance circuit to convert the flow rates velocity into electric signals the difference of which is obtained by amplifier A as an oxygen signal ier Cu resistance O Ossignal posce M IN Sample gas inlet Va Qs flow signal R IN Auxiliary gas inlet V Q flow signal OUT Gas outlet F Magnetic force acting on oxygen molecules Magnetic Field Thermistor Thermistor reied Figure 16 1 Measurement Principle IM 11P03A03 01E Customer MG8G Maintenance Mont Parts List Paramagnetic Oxygen Analyzer External connection terminal Item Parts No Qty Description 1 A1111EF 2 Fuse YOKOG AWA lt gt Copyright Dec 1994 YK 2nd Edition Sep 1996
19. product is the correct one If you have any questions contact our sales representative or your local distributor IM 11P03A03 01E User s Model MG8G Supplement Manual Paramagnetic Oxygen Analyzer Os Thank you for selecting our MG8G Paramagnetic Oxygen Analyzer In User s Manual IM 11P03A03 01E 4th Edition supplied with the product some revisons additions have been made Please replace the corresponding pages in your copy with attached revised pages Note Revisions P 3 2 Section 3 1 Standard Specifications Power Supply Description changes Standard Specifications Addition of KC Marking P 6 1 Section 6 PIPING 2 Change the range of the pressure gauge PIPING Addition of setting pressure in figure 6 1 e All Rights Reserved Copyright 2013 2nd Edition Jul 2014 YK IM 1 1 PO3A03 01 E YO KOGAWA Subject to change without notice 4th Edition Yokogawa Electric Corporatior 3 2 lt 3 SPECIFICATIONS gt Calibration gas Zero gas Nz gas Note Zero gas should not contain Oz gas with a concentration equal to or greater than 0 1 of the upper range value Span gas Dry air instrument air Oz 20 95 vol or standard gas containing O gas with a concentration of 80 to 100 of the span value balance nitrogen Auxiliary gas pressure N2 180kPa Approx 35ml min Note Auxiliary gas should not contain O gas with a concentration equal to or greater than 0 1 of the upper range value
20. time span calibration time and purge time refer to Section 12 3 2 Semiautomatic Calibration Switch to MAINT mode and enter the password Change the Function Number to 50 to set the initial wait time The DATA display shows xx xx The two left digits represent days 00 to 99 days and the two right digits time 00 to 24 hours Set the desired day and time using the SHIFT and INCR keys Press the EXEC key to accept Change the Function Number to 51 to set the calibration interval The DATA display shows xx xx The two left digits represent days 00 to 99 days and the two right digits time 00 to 24 hours Note that the minimum interval is one hour and 00 00 will be rejected Set the desired interval using the SHIFT and INCR keys Press the EXEC key to accept Change the Function Number to 55 to set whether or not to execute span calibration Set to 0 not to execute span calibration or set to 1 to execute span calibration using the SHIFT and INCR keys Press the EXEC key to accept When 1 is set in Function No 55 the number of times of skipping span calibrations should be set in Function No 56 Set the desired number of times of skipping span calibrations using the SHIFT and INCR keys Press the EXEC key to accept When 0 is set in Function No 55 appears on the display and the number of times of skipping span calibrations cannot be set Change the Function Number to 57
21. 2 3 Short Term Shift in Readings Check that the flow rate of the sample gas is the specified one and is stable If the flow of the sample gas containing oxygen is turned off the reading will shift toward 0 Oz 15 3 When Calibration Cannot Be Executed Check that the password has been entered correctly and that the ENABLE lamp is lit Check that the instrument is in steady state If the MAINT lamp blinks in MEAS mode the instrument is in a stabilization period and calibration cannot be executed Check that the calibration gas concentrations are set properly 15 4 Inthe Event of Power Failure 15 4 1 Instantaneous Power Failure The instrument will not be affected and will continue to work if the duration of a power failure is 80 ms or shorter in the case of the instrument with a power supply of 100 to 115 V AC or if the duration of power failure is 350 ms or shorter in the case of the instrument with a power supply of 200 to 240 V AC Even if the duration of a power failure is the above mentioned time or less the instrument may be restarted if the power failure occurs during the warm up period because of the amount of time that the heater is turned on 15 4 2 When the Power Returns If the temperature of the constant temperature chamber remains at 50 C or higher when the power returns from a relatively short term a few minutes power failure the instrument will returns to MEAS mode in about 30 seconds This applies only when the
22. EC key The current error code will be The types of errors detected by the self diagnostic function and remedies are summarized in Table 15 1 Table 15 1 Errors and Remedies 0 9 or above 1 09 activated and FAIL lamp turns on Error Type Code Description Action Remedy E 10 Sensor emf continues to exceed R th 4 Sensor unit 400 mV for at least 10 seconds EInove Mie CAUSES an reset the error status in error E M Sensor emf continues to fall below Function No 41 50 mV for at least 10 seconds eS In stabilization period or steady state E 20 heater temperature continues to fall below 55 C for at least 10 seconds Turn off power to Constant In stabilization period or steady state heater Remove the causes Turn ons ei E 21 heater temperature continues to the power off and on again SR exceed 65 C for at least 10 seconds to restart eher p 22 ln warm up period heater If error occurs again temperature fails to rise Error code blinks on contact Yokogawa Service In warm up period heater DATA display Turn off E 23 temperature continues to exceed power to heater 65 C for at least 10 seconds E 30 Failure occurs in A D converter on Turn off power to Tum the power off and on circuit heater Analog error E 31 again to restart E 32 Voltage of sensor unit exceeds input If error occurs again E 33 range of A D converter contact Yokogawa Service Turn the power
23. EN ANALYZER orTpPeuTOoOoOoOoooooo Bg O MEAS OMAINT Q HEATER O H ALM Vol O OAUTO CAL O LALM O RMT RANGE O FAIL O LCL RANGE O O SPAN ZERO A FUNC A ENABL O INHIBIT O DECIMAL MEAS MAINT POINT SHIFT A INCR EXEC II Table 9 1 Operation Keys and Their Functions F9 1E ai Figure 9 1 Operation Panel Key Function Hold this key and press EXEC key to switch measurement MEAS mode and MEASIMAINE maintenance MAINT mode SPAN Used to execute span calibration in calibration Used to enter span gas concentration in setting ZERO Used to execute zero calibration in calibration Used to enter zero gas concentration in setting A FUNC A Used to change the Function Number Each press increases the number by one increment Change the tens and ones digits independently Used to move the decimal point in setting In this manual this key is referred to as the DECIMAL POINT DP key gt SHIFT Used to blink digit on DATA display or to move blinking digit in setting A INCR Each press increases the active value by one increment in setting EXEC Used to confirm data entry or to execute function IM 11P03A03 01E 9 2 lt 9 OPERATIONS gt 9 2 Displays and Indicators The displays and indicators and their functions are summarized in Table 9 2 Also refer to Figure 9 1 Operation Panel Table 9 2 Displays and Indicators Display Indicato
24. Lights when range switching function at contact input is enabled LCL RANGE Lights when range switching function at contact input is disabled IM 11P03A03 01E lt 9 OPERATIONS gt 9 3 9 3 1 9 3 2 Basic Operations This section describes the basic operations of the MG8G paramagnetic oxygen analyzer In this section X pointer in the key operation fields indicates the key to be pressed and light gray characters in DATA fields indicate blinking characters on the display Switching from MEAS Mode to MAINT Mode In MEAS mode the DATA display on the instrument shows oxygen concentrations in steady state and in MAINT mode operation parameters are set and confirmed or calibration is performed When the instrument moves into steady state after a warm up period it is in MEAS mode The instrument can be switched into MAINT mode from a warm up period stabilization period or steady state MEAS mode Key Operation FUNC DATA Procedure Seer il ah Press EXEC key while holding MEAS etsi SR Sur m oo E amp E E MAINT key MAINT and INHIBIT lamps turn UB on Maintenance status contact is activated Entering the Password A password is required when setting data or performing calibration in MAINT mode A password for the instrument is O07 which cannot be changed The following describes how to enter the password Key Operation FUNC DATA Procedure S N 280 A FUNC A ENABL O I
25. Measurement gas condition Flow 200ml min 10 The gas flow rate may be less than 200ml 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 Humidity 10 to 9596 RH No condensing Power supply Power supply Voltage 100 to 115 V AC Rated voltage range 100 to 115 V AC Allowable voltage range 90 to 127 V AC Reted frequency 50 60 Hz Allowable frequency range 48 to 63 Hz Power supply Voltage 200 to 240 V AC Rated voltage range 200 to 240 V AC Allowable voltage range 180 to 264 V AC Reted frequency 50 60 Hz Allowable frequency range 48 to 63 Hz Power consumption 100 to 115V AC Max 110VA normaly approx 25V 200 to 240V AC Max 125VA normaly approx 35V KC Marking Korea Electromagnetic Conformity Standard Materials in contact with gas SUS316 stainless steel Fluorine contained rubber IM 11P03A03 01E lt 3 SPECIFICATIONS gt 3 3 Line connection Rc1 4 Conduit connection port 27 hole Installation Indoor panel or wall mounting Structure Dustproof General purpose Dimension 406 W x 288 H x 216 D mm Weight Approx 18kg IM 11P03A03 01E 6 lt 6 PIPING gt 6 1 PIPING 1 Piping The standard line diagram is shown in figure 6 1 Use 6 4 mm diameter metal tubes for lines and connect the tub
26. NHIBIT O DECIMAL E A INCR Lj MEAS MAINT BU POOU Press FUNC keys to show 00 on FUNC display DATA display shows P000 where the password is entered o o SPAN L ENABL O INHIBIT O DECIMAL aita A INCR O O FUNC A MEAS MAINT UU PUBU Press SHIFT key repeatedly to move the blinking digit to the rightmost digit San 280 A FUNC A ENABL O INHIBIT O MEAS MAINT BY PUU Press INCR key repeatedly until 7 is displayed DECIMAL E A INCR EXEC san zRo A FUNC A ENABL O INHIBIT O MAI MEAS MAINT R DECIMAL A INCR EXEC UU PUBI Press EXEC key to accept The digit stops blinking ENABLE lamp turns on indicating that the password has become effective IM 11P03A03 01E 9 4 lt 9 OPERATIONS gt 9 3 3 Changing the Function Number Each function is assigned to the Function Numbers Parameters can be viewed and set in the relevant Function Number The Function Number can be changed using the FUNC keys when the instrument is in MAINT mode The following describes how to change the Function Number Key Operation FUNC DATA Procedure GU PUG Switch to MAINT mode Enter the password o o SPAN ZERO A FUNC A ENABLO INHIBIT O MEAS MAINT DECIMAL A INCR EXI US Press the left FUNC key to increase the tens digit and press the right FUNC key to increase the ones digit on FUNC display When the Function Number is di
27. No High Low Alarm Contact Output Range Answerback Contact Output High Alarm Low Alarm Range 1 Range 2 Range 3 10 12 Closed Open Open Closed 11 12 Closed Open Closed Open 7 4 4 2 Wiring for Maintenance Status Contact Output The contact between terminals 13 and 14 is closed during maintenance For its functions refer to Chapter 11 Parameter Settings The contact is open when the instrument is not powered 7 4 4 3 Wiring for Fail Contact Output The contact between terminals 15 and 16 will be activated when an error occurs The output contact is user configurable to be normally energized the contact will open when an error occurs or normally deenergized the contact will close when an error occurs For the setting and functions refer to Chapter 11 Parameter Settings The contact is open when the instrument is not powered IM 11P03A03 01E lt 7 WIRING gt 7 5 7 4 5 Contact Input Wiring The input is designed to accept a voltage free contact The contact will open or close in response to the resistance detected on the input Note that the resistance includes wiring resistance Contact closes at 200 O or less Contact opens at 100 kO or more Automatic calibration Remote range Ground Output signal contact input contact input FG ANALOG OUTPUT SC INPUT 4 20mA DC CAL START RANGE CHANGE F7 5E ai Figure 7 5 Contact Input Wiring 7 4 5 1 Wiring for Calibration Start Contact Input A calibration will star
28. User s Manual Model MG8G Paramagnetic Oxygen Analyzer IM 11P03A03 01E vigilantplant YOKOGAWA 4 IM 11P03A03 01E f 4th Editi Yokogawa Electric Corporation m lt INTRODUCTION gt i INTRODUCTION m Safety Protection and Modification of the Product In order to protect the system controlled by the product and the product itself and ensure safe operation observe the safety precautions described in this user s manual We assume no liabil ity for safety if users fail to observe these instructions when operating the product If this instrument is used in a manner not specified in this user s manual the protection provided by this instrument may be impaired If any protection or safety circuit is required for the system controlled by the product or for the product itself prepare it separately Be sure to use the spare parts approved by Yokogawa Electric Corporation hereafter simply referred to as YOKOGAWA when replacing parts or consumables Modification of the product is strictly prohibited The following symbols are used in the product and user s manual to indicate that there are pre cautions for safety Media No IM 11P03A03 01E CD 4th Edition November 2008 YK IM 11P03A03 01E All Rights Reserved Copyright 2007 Yokogawa Electric Corporation ii INTRODUCTION B Notes on Handling User s Manuals Please hand over the user s manuals to your end users so that they can keep the user s manu
29. Valve El El a Solenoid Valve 22 in Zero Gas Line in Sample Gas Line Normally Closed Normally Open Solenoid Valve in Span Gas Line Normally Closed F7 3E ai Figure 7 3 Solenoid Valve Wiring A IMPORTANT The power sources for solenoid valves are provided internally Use solenoid valves that have the same power supply voltage and frequency specifications as the instrument IM 11P03A03 01E 7 4 lt 7 WIRING gt 7 4 4 Contact Output Wiring All outputs are voltage free dry contacts mechanical relay contacts and rated 3A at 250 V AC or 30 VDC High low limit alarm contact output or Maintenance mode range contact output contact output FAIL contact output CONTACT OUTPUT NO RANGE OUT HL ALM MAIT CAL FAIL CONNECTION Higher Level Devices Annunciators etc F7 4E ai Figure 7 4 Contact Output Wiring 7 4 4 4 Wiring for High Low Alarm Contact Output Range Answerback Contact Output Either high low alarm contact output or range answerback contact output can be selected For their detailed functions and setting procedures refer to Chapter 11 Parameter Settings Terminal 12 is a common terminal and the contact between terminals 10 and 12 and the one between terminals 11 and 12 will open or close in response to the instrument status For external connections to higher level devices or other instruments refer to Figure 7 4 Both contacts are open when the instrument is not powered Terminal
30. ange the Function Number to 10 3 Set to 2 using the SHIFT and INCR keys Press the EXEC key to accept Now the remote range function is enabled The remote range contact states and ranges are shown in Figure 11 1 When two contacts terminals 7 9 and 8 9 are closed the previously set range remains Table 11 1 Remote Range Contact States and Ranges Terminal Number 7 9 R3 8 9 R2 Range Selected Open Open Range 1 Open Closed Range 2 Closed Open Range 3 Closed Closed Previous range IM 11P03A03 01E 11 6 11 6 lt 11 PARAMETER SETTINGS gt Setting the Range Switching Answerback Contact Output The range switching answerback function enables the currently selected range to be output by the contact output terminals 10 11 and 12 Since either the range switching answerback function or the high low limit alarm function can be assigned to this contact the range switching answerback function cannot be used when the high low limit alarm function is enabled Switch to MAINT mode and enter the password Change the Function Number to 22 Set to 0 to disable the high low limit alarm function using the SHIFT and INCR keys Press the EXEC key to accept Now the range switching answerback function is enabled The range answerback contact states and ranges are shown in Figure 11 2 Table 11 2 Range Answerback Contact States and Ranges Termi
31. as to flow through the sensor unit Set the amount of time it takes for the span gas to purge the zero gas in the sensor and for the reading to stabilize sufficiently The setting range is from 1 to 99 minutes Purge time Function No 54 The amount of time for sample gas to flow through the sensor unit to purge calibration gas after calibration Set the amount of time it takes for the sample gas to purge the sensor unit completely The setting range is from 0 to 99 minutes When the output hold function during calibration is set to enabled the analog output will be held during the calibration including the purge time Also the maintenance status contact will be closed during the calibration including the purge time The purge time is valid for manual calibration The zero calibration time span calibration time and purge time can be set in Function Nos 52 53 and 54 respectively 1 Switch to MAINT mode and enter the password 2 Change the Function Number to 52 3 Set the zero calibration time using the SHIFT and INCR keys Press the EXEC key to accept 4 In the same manner set the span calibration time in Function No 53 and the purge time in Function No 54 Aca UTION For semiautomatic calibration wiring and piping for automatic calibration are required If the calibration start contact remains closed after calibration the instrument will not accept the next calibration start contact input The contact should
32. ce described in this instruction manual IM 11P03A03 01E lt CONTENTS gt V Model MG8G Paramagnetic Oxygen Analyzer IM 11P03A03 01E 4th Edition CONTENTS INTRODUCTION es aden i e After sales Warranty ne en iv 1 NOTICE ON HANDLING 2 2 1 1 1 1 Precaution in Unpacking esee 1 1 1 2 Check of Model Name and Specifications eseuesssss 1 1 2 OVERVIEW e e 2 1 2 1 Standard System Configuration uusreennnennnennnennnennnnnnnennnnnnnennnnnnnennnannnennnenn 2 1 2 2 System Configuration with Automatic Calibration 2 2 3 SPEBIFIEATIONS u na 3 1 3 1 Standard Specifications u un u san 3 1 3 2 Cliaracteristics a 3 3 3 3 Model and Suffix Code wiccciccccscccscecscccscessccseceseccsecesecssecevecevecevecsveceveeeveceseeeveeevecs 3 4 3 4 External Dimensions renean nnno nna ona nca nta anna anna anna eine 3 5 4 INSTALLATION na nein 4 1 4 1 Installation Location RRRS 4 1 4 2 Installation Procedure mocoiorocic 2a 4 2 5 NAME OF COMPONENTS 422044444200000000000 0000000 nn nnnnn ann nn nnnnnnnnnn nun 5 1 6 PIRING E E E 6 1 T WIRING T 7 1 7 1 External Connection Terminals eene 7 1 7 2 Wiring Precautlons eterne Rete me Rieti Bananen nee 7 2 7
33. concentration 0 5 to 25 03 Checking calibration ZERO key displays zero calibration coefficient O o coefficients SPAN key displays span calibration coefficient 04 Setting output hold function 0 enabled O o during calibration 1 disabled Initializing calibration 05 coefficient 9 10 Setting remote range 1 disabled O switching contact input 2 enabled 1 range 1 11 Selecting range 2 range 2 O 3 range 3 12 Setting span for range 1 5 to 25 O2 O O 13 Setting span for range 2 5 to 25 Oz O O 14 __ Setting span for range 3 5 to 25 O2 O O ZERO key 4 mA 16 Fixed analog output SPAN key 20 mA O 20 Setting low limit alarm 0 to 25 O2 O 21 Setting high limit alarm 0 to 25 Oz O O Setting high low limit alarm 0 disabled 22 function 1 enabled id ii Checking temperature C 30 of constant temperature O O chamber 31 Checking sensor emf mV O O 40 Executing error check Resetting sensor emf error l status Esa 9 Resetting calibration 42 coefficient error status E 9 Setting output hold function 1 enabled output is held at last measured value 45 when error occurs 2 disabled o 9 3 enabled output is held at preset value 44 Setting preset value 10 to 110 O 45 Setting contact output 0 contact closes when error occurs O status when error occurs 1 contact opens when error occurs Setting initial wait time for 50 automatic calibration 0 day 0 hour to 99 days 24 hours O Setting int
34. converter door shows the main items Check to see if the specifications are as specified IM 11P03A03 01E lt 2 OVERVIEW gt 2 1 2 OVERVIEW This oxygen analyzer integrates a detector and a converter into one unit to continuously measure the concentration of the oxygen in a sample gas The analyzing cell is almost free from the effects of co existent gas is highly sensitive and has a superior response The detector is constructed to withstand vibration and mechanical shock within the limits of current technology The converter has a large easy to read digital display unit that displays oxygen concentration cell output voltage constant chamber temperature etc Analog output is electrically isolated between the input and output sections Further the instrument is provided with one touch calibration and self test functions to improve operability maintainability and reliability 2 1 Standard System Configuration The standard system configuration of the MG8G paramagnetic oxygen analyzer is shown in Figure 2 1 The system configuration that includes an automatic calibration option is shown in Figure 2 1 Atmosphere vent Model MG8G ______ gt Analog output e gt Contact output Zero gas Contact input Span gas gt Power supply Sampling gas Filter Auxiliary gas Pressure Pressure regulator gauge F2 1E ai Figure 2 1 System Configuration Diagram CAUTION Auxiliary gas
35. d shn zRo A FC A Press FUNC keys to show 11 on FUNC display DATA display shows 1 the currently selected range LIC C o PAN ZERO A FUNC A si ENABL O INHIBIT O MEAS MAINT DECIMAL E A INCR EXEC o o SPAN ZERO A FUNC A ENABL O INHIBIT O MEAS MAINT DECIMAL Ki A INCR EXEC j j Press SHIFT key 4 blinks indicating that the digit can be changed Press INCR key to change the digit to the desired range number The digit cycles through only the available values in this case 1 through 3 o o SPAN ZERO A FUNC A ENABL O INHIBIT O MEAS MAINT DECIMAL Mm A INCR EXEC j Press EXEC key The digit stops blinking indicating that the change has been accepted IM 11P03A03 01E lt 9 OPERATIONS gt 9 7 9 3 7 Functions Numbers The functions assigned to the Function Numbers are listed in Table 9 3 In some functions parameters are not shown unless the password is effective in MAINT mode Table 9 3 Function Numbers Func 5 Password Function Setting and Range ot No Effective Effective 00 _ Entering password e dE ZERO key executes zero calibration 01 Executing calibrations SPAN key executes span calibration E 9 02 Setting calibration gas ZERO key for zero gas concentration 0 to 6 O o concentrations SPAN key for span gas
36. d to the cylinder If the pressure is low replace the gas cylinder The primary pressure of the supplied pressure regulator for supplying auxiliary gas must be at least 300 kPa When the auxiliary gas pressure is readjusted zero and span calibrations should be conducted A CAUTION After the gas cylinder is replaced zero and span calibrations should be conducted If air is trapped in the auxiliary gas line during replacement the reading will fluctuate and it will take long time for the reading to stabilize After the reading has stabilized completely perform the calibrations 14 2 Checking the Sample Gas Check the flow rate of the sample gas on a timely basis 14 3 Precautions When Stopping and Restarting the Operation The most common failure or trouble occurs when stopping or restarting the operation Extreme care should be taken 1 When sample gas contains corrosive components turn off the sample gas flow with the auxiliary gas being supplied After turning off the sample gas flow allow nitrogen gas or instrument air to flow to purge the sample gas line S If possible it is recommended that the auxiliary gas be allowed to flow while the operation is suspended 99 Before restarting the operation check the sample gas line for moisture due to condensation If moisture is present remove the sample gas line from the instrument and allow instrument air to flow to purge the pipe completely Moisture in the
37. disabled 30 Checking temperature C of constant temperature chamber 31 Checking sensor emf mV 40 Executing error check 41 Resetting sensor emf error status 42 Resetting calibration coefficient error status 43 Setting output hold function when error occurs 1 enabled at last measured value 44 Setting preset value 00 00 45 Setting contact output status when error occurs 0 contact closes when error occurs 50 Setting initial wait time for automatic calibration 00 00 0 day 0 hour 51 Setting interval for automatic calibration 30 00 30 days 0 hour 52 Setting zero calibration time 10 10 minutes 53 Setting span calibration time 10 10 minutes 54 Setting purge time 10 10 minutes 55 Executing span calibration 1 executes span calibration 56 Setting the number of times of skipping span calibrations 00 no skipping 57 Starting automatic calibration function 0 OFF 58 Manual operations of solenoid valves 67 Checking error status 98 Checking firmware version 99 Initialization IM 11P03A03 01E lt 14 INSPECTION AND MAINTENANCE gt 14 1 14 INSPECTION AND MAINTENANCE This chapter describes the inspection and maintenance procedures to ensure optimum performance of the instrument and to keep it in good operating condition 14 4 Checking the Auxiliary Gas Check that the auxiliary gas is supplied at the specified pressure When the gas is supplied from a gas cylinder check the pressure gauge attache
38. e the constant temperature chamber cover and tighten the cover screws securely When replacing the covers be sure that cables are not caught in the covers Make sure that the covers are installed securely Otherwise the temperature in the constant temperature chamber may become unstable causing measurement errors Constant Temperature Bolts 4 M6 Screws 4xM4 O Chamber Cover Mirror supplied Adjustment Screw Level Level 3 Heater Assembly Cover Screws 6xM4 OBolts 4xM6 F8 1E ai F8 2E ai Figure 8 1 a Constant Temperature Chamber Front View b Constant Temperature Chamber Side View IM 11P03A03 01E 8 2 lt 8 PREPARATIONS gt 8 2 Setting the Auxiliary Gas Pressure Set the pressure of the auxiliary gas to the specified pressure that is indicated on the name plate on the inside of the instrument door Figure 8 2 shows an example of the name plate that indicates the specified pressure of the auxiliary gas OXYGEN ANALYZER MG8G SUFFIX MA 5 WL JN C Auxiliary gas W N2 gas Specified pressure 180kPa Made in Japan F83E ai Figure 8 2 Name Plate 8 3 Checking Sample Gas Do not allow sample gas to flow before the instrument is in steady state IM 11P03A03 01E lt 9 OPERATIONS gt 9 1 9 OPERATIONS 9 1 Operation Keys The operation keys on the panel are shown in Figure 9 1 and their functions are summarized in Table 9 1 PARAMAGNETIC OXYG
39. e auxiliary gas is being supplied at the specified pressure 1 2 Auxiliary gas and zero gas with proper nitrogen purities are used 3 The span gas concentration set in the instrument agrees with the actual gas concentration 4 Calibration gases flow at the specified flow rate without fluctuation Manual Calibration A zero calibration should be performed first and then a span calibration A span calibration cannot be executed before a zero calibration It is allowed to perform only a zero calibration but not allowed to perform only a span calibration 1 Switch to MAINT mode and enter the password 2 Change the Function Number to 01 The DATA display shows the current oxygen concentration The display may show the minus sign The instrument determines the value even if the measured concentration is below zero The measured concentration when zero gas is applied may be a negative value 3 Press the ZERO key Turn off the sample gas flow and apply the zero gas at the specified flow rate in the sample gas line When solenoid valves for automatic calibration are installed pressing the ZERO key closes the solenoid valve in sample gas line and opens the solenoid valve in zero gas line 4 The oxygen concentration on the DATA display changes When the reading has stabilized completely press the EXEC key The instrument is now calibrated to the value as the zero point 5 Press the SPAN key Turn off the zero gas flow and appl
40. e to verify whether the calibration is conducted properly IM 11P03A03 01E lt 13 OTHER FUNCTIONS gt 13 1 13 OTHER FUNCTIONS 13 4 Checking the Temperature of the Constant Temperature Chamber Function No 30 The temperature C in the sensor unit can be checked in Function No 30 It is stable at 60 C after the instrument entered MEAS mode 13 2 Checking the Sensor EMF Function No 31 The sensor emf mV can be checked in Function No 31 When the instrument is in a warm up period the DATA display will show 13 3 Manual Operation of the Solenoid Valves for Automatic Calibration Function No 58 When wiring and piping for the solenoid valves for automatic calibration have been installed each Solenoid valve can be operated manually The DATA display shows oxygen concentrations This manual operation can be used for checking readings 1 Switch to MAINT mode and enter the password 2 Change the Function Number to 58 The DATA display shows an oxygen concentration 3 Press the ZERO key to open the solenoid valve in zero gas line and close the solenoid valve in sample gas line 4 Press the SPAN key to open the solenoid valve in span gas line and close the solenoid valve in sample gas line 5 Change the Function Number to the one other than 58 to close the solenoid valves for calibration gas lines and open the solenoid valve in sample gas line 13 4 Checking the Firmware Version Function
41. ee ttn ene ge an 12 3 12 3 2 Semiautomatic Calibration esse 12 4 12 3 3 Automatic Calibration essen 12 5 T4 OTHERFUNCTIONS nn sen 13 1 13 1 Checking the Temperature of the Constant Temperature Chamber Function No SO met CLR 13 1 13 2 Checking the Sensor EMF Function No 31 eene 13 1 13 3 Manual Operation of the Solenoid Valves for Automatic Calibration FunctioniNo EE 13 1 13 4 Checking the Firmware Version Function No 98 13 1 13 5 Initializing Parameters Function No 99 eeeereeennee 13 2 14 INSPECTION AND MAINTENANCE eeeeeeeeeeeeeeennnnennn nn 14 1 14 1 Checking the Auxiliary Gas esee 14 1 14 2 Checking the Sample Gas eese nennen nnne nnns 14 1 14 3 Precautions When Stopping and Restarting the Operation 14 1 14 4 ET Lp ero 14 2 14 5 Other INStTUCHONS 5 reinas a anaatnansevaanntanaasnncceananananenthnanenuanssueishnatinnanss 14 3 14 6 Replacing the Limited Life Component sees 14 3 15 TROUBLESHOOTING cernerent tentent tnnt tnnt 15 1 15 1 Errors and Remedies erret traiter ente trant hair ana ann ean are aud 15 1 15 1 1 Checking the Error Code sii ira rtr tert ee en ga 15 1 15 1 2 Error RI ele 15 2 15 2 Faulty Readings During Measurement
42. erature chamber of the MG8G is normally stable at 60 C during a stabilization period and in steady state When a constant temperature chamber error occurs turn the power off and on again to restart and after the instrument enters a stabilization period check the temperature of the constant temperature chamber in Function No 30 If the temperature fluctuates possible causes are 1 The power supply voltage fluctuates 2 The ambient temperature is outside the specification range 5 to 55 C 15 1 2 3 Constant Temperature Chamber Errors E 22 E 23 A constant temperature chamber error E 22 or E 23 occurs while the instrument is in a warm up period Turn the power off and on again After the constant temperature chamber has cooled down sufficiently restart the instrument If the same error occurs there may be a failure in components for temperature control Contact Yokogawa Service 1 E 22 A possible cause is heater disconnection or action of the internal thermostat for over temperature protection 2 E 23 A possible cause is a failure in parts for heater power control When an E 23 error occurs the internal thermostat may be activated at the same time The internal thermostat is activated when the temperature reaches approximately 70 C but is not reset automatically when the temperature drops 15 1 2 4 Analog Errors E 30 E 31 E 32 E 33 An analog error occurs when there is a failure in the analog circuit Turn the po
43. eriod When the temperature in the sensor unit stabilized completely the MAINT lamp stops blinking and the MEAS lamp turns on This is steady state During a warm up period the analog output is fixed at 4 mA During warm up and stabilization periods the maintenance status contact is activated Figure 9 2 shows the temperatures of the heater and in the sensor unit during warm up and stabilization periods Temperature Heater Temperature shown on DATA display Temperature in Sensor Unit Time U Closed Open _ Maintenance Status Contact Action I Power Up Warm up Period oe Steady State MAINT Lamp Blinking F10 1E ai Figure 10 1 Temperatures of the Heater and in the Sensor Unit During Warm up and Stabilization Periods IM 11P03A03 01E lt 10 START UP gt 10 3 10 3 Analog Output Loop Check A loop check is for checking wiring between the analog output terminals 3 and 4 of the instrument and the terminals of a higher level device 1 2 3 4 Ca Aa a Switch to MAINT mode and enter the password Change the Function Number to 16 Press the ZERO key to provide 4mA output from the output terminals Press the SPAN key to provide 20 mA output from the output terminals 10 4 Setting the Output Range The three ranges should be preset to range 1 2 and 3 respectively and one of the three ranges should be selected The following describes how to set each range and how to select a range 1 2
44. erval for 51 autemaliccalibration 0 day 1 hour to 99 days 24 hours O 52 Setting zero calibration time 1 to 99 minutes O O 53 SR span calibration 1 to 99 minutes O 54 _ Setting purge time 1 to 99 minutes O att 0 not execute span calibration 55 Executing span calibration 1 executes span calibration O Setting the number of 56 times of skipping span 0 to 99 times O calibrations Starting automatic 57 calibration function 0 OFF ON o 58 Manual operations of ZERO key opens solenoid valve in zero gas line GE solenoid valves SPAN key opens solenoid valve in span gas line 67 Checking error status For service O O 98 _ Checking firmware version O O 99 Initialization m O Data can only be viewed Data can be changed or functions can be executed IM 11P03A03 01E lt 10 START UP gt 10 1 10 START UP This chapter describes the procedures for supplying power setting operation parameters and manual calibration 10 1 Supplying Power Before supplying power to the instrument make sure that 1 3 4 no sample gas has been introduced the installation piping and wiring have been done correctly 2 the auxiliary gas is being supplied at the specified pressure the supply voltage meets the instrument specifications and Then turn on the power switch located next to the external connection terminals inside the operation panel Upon power up the instrument displays s
45. es in such a way that there are no leaks 2 Installation of the pressure regulator and pressure gauge Install the pressure regulator and pressure gauge 0 to 0 4 MPa G in the auxiliary line Use the pressure regulator to set a specified pressure For pressure settings see Section 8 2 Setting the Auxiliary Gas Pressure 3 Caution on piping This oxygen analyzer uses calibration gases for zero and span calibrations Install the lines so that the sample and calibration gases can be switched 4 Purge lines If the atmosphere or sample gas contains corrosive or combustible gases or if the atmospheric temperature is likely to rise too high purge the instrument with clean air Connect a copper or stainless steel tube to the purge air inlet shown in Figure 6 2 to supply air at a pressure of about 50 kPaG 5 Gas outlet exhaust Gas from the instrument should be vented to the atmosphere The gas outlet should be designed so that the ingress of wind or rain is prevented Model MG8G Zero gas Span gas 3 Sample gas Filter 180 kPa Auxiliary gas gt Pressure Pressure gauge regulator F6 1E ai Figure 6 1 Line Diagram Purge air outlet with blind seal Purge air inlet Re 1 8 female thread Note Always remove the seal protecting the purge air outlet F6 2E ai Figure 6 2 Purge Air Connection IM 11P03A03 01E lt INTRODUCTION gt iii B Symbol Marks Throughout this user
46. essure N2 180kPa Approx 35ml min Note Auxiliary gas should not contain O gas with a concentration equal to or greater than 0 196 of the upper range value Measurement gas condition Flow 200ml minx1096 The gas flow rate may be less than 200ml 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 Humidity 10 to 95 RH No condensing Power supply 100 115V AC 50 60Hz or 200 240V AC 50 60Hz Power consumption 100 to 115V AC Max 110VA normaly approx 25V 200 to 240V AC Max 125VA normaly approx 35V 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 Structure Dustproof General purpose Dimension 406 W x 288 H x 216 D mm Weight Approx 18kg IM 11P03A03 01E lt 3 SPECIFICATIONS gt 3 3 3 2 Characteristics Repeatability 1 or less of F S Linearity 1 or less of F S Response time 9096 response within 3 sec from changing analog output at measured gas flow rate 200 ml min Zero drift 1 5 or less of F S Week Span drift 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
47. here The gas outlet should be designed so that the ingress of wind or rain is prevented Model MG8G Zero gas Span gas 3 Flow control valve Sample gas Filter Auxiliary gas gt Pressure Pressure gauge regulator F6 1E ai Figure 6 1 Line Diagram Purge air outlet with blind seal Purge air inlet Rc 1 8 female thread Note Always remove the seal protecting the purge air outlet F6 2E ai Figure 6 2 Purge Air Connection IM 11P03A03 01E lt 7 WIRING gt 7 1 7 WIRING 7 1 External Connection Terminals The external connection terminals are located inside the operation panel To open the panel loosen the two screws on the panel Figure 7 1 shows the diagram of the external connection terminals of the MG8G The terminal numbers are indicated on the instrument Be sure to make all connections correctly The terminal screw thread is M4 Appropriate crimp terminals should be used The FG terminals are connected to the case Make sure that terminals G 26 and FG 27 should remain connected by a supplied jumper plate Automatic calibration Remote range Ground Output signal contact input contact input FG ANALOG OUTPUT SS INPUT 4 20mA DC CAL START RANGE CHANGE High low limit alarm contact output or Maintenance mode range contact output contact output FAIL contact output CONTACT UTPUT NOT RANGE OUT HL ALM MAIT CAL FAIL CONNECTION R3 HI 4 R2 LO A Automatic calibrat
48. how as follows Display Description DATA All segments on both DATA and FUNC displays turn on for about two seconds DATA The firmware revision appears for about three seconds The number shown at left is an example DATA j e oma 9 9 CO The instrument enters a warm up period As shown at left the DATA display alternates between uuuu and the current heater temperature during the warm up IM 11P03A03 01E 10 2 lt 10 START UP gt 10 2 Warm up After power up the instrument goes through a warm up period and then reaches steady state where itis ready for measurement This section describes how the instrument behaves during the warm up period The instrument controls the temperature so that the temperature in the sensor unit is kept at 60 C It may take approximately three hours until the temperature in the sensor unit has stabilized at 60 C The required time varies depending on the temperature in the sensor unit at start up or ambient temperature When the temperature in the sensor unit approaches 60 C the DATA display shows oxygen concentrations and the MAINT lamp starts to blink At the same time the instrument provides analog outputs corresponding to the output range This period is called a stabilization period and in this period a temperature drift may occur since the temperature in the sensor unit has not completely stabilized A calibration cannot be executed in this p
49. ing wire to terminal FG 27 or the external grounding terminal at the bottom of the case The ground resistance should be 100 O or less The jumper plate between terminals G 26 and FG 27 must remain connected IM 11P03A03 01E lt 7 WIRING gt 7 3 7 4 2 Analog Output Wiring Connect an analog output cable to the ANALOG OUTPUT terminals 3 and 4 and the shield wire to the FG terminal 1 or 2 of the instrument The load resistance including wiring resistance on the output should be 550 Q or less Automatic calibration Remote range Ground Output signal contact input contact input FG ANALOG OUTPUT CONTACT INPUT 4 20mA DC CAL START RANGE CHANGE T R3 R2 COM alolalololal 4 5 6 7 8 9 Receiver Recorder F7 2E ai Figure 7 2 Analog Output Wiring 7 4 3 Wiring for Solenoid Valves for Automatic Calibration This wiring is for the solenoid valves that switch zero span and sample gas lines in automatic or semiautomatic calibration The power sources for solenoid valves are provided internally Use solenoid valves that have the same power supply voltage and frequency specifications as the instrument Use a normally open solenoid valve in sample gas line and normally closed solenoid valves for zero and span gas lines Automatic calibration solenoid valve drive signal Power supply AC FG SV POWER OUTPUT POWER SUPPLY AUTO CAL ZERO A SPAN A SMPL lee JQl ji 19 23 24 25 26 Solenoid
50. ion solenoid valve drive signal Power supply AC JUMPER PLATE SV POWER OUTPUT AUTO CAL F7 1E ai Figure 7 1 External Connection Terminals IM 11P03A03 01E 7 2 lt 7 WIRING gt 7 2 7 3 1 2 3 4 7 4 Wiring Precautions Turn off all the power before wiring Do not route electrical wiring and wiring for large capacity converters and motors or power wiring in the same wiring duct To prevent malfunction due to noise do not route signal cables and power cables in the same cable hole When running cables in a place where ambient temperature is high or low use cables suited for that condition When running cables in an atmosphere where hazardous gas or liquid or oil or solvent is present use cables made of materials that can withstand such aggressive conditions For wire termination use crimp terminals M4 screws with insulating sleeves Cable Specifications For the wiring use PVC insulated PVC sheathed control cables CVV PVC insulated PVC sheath shield control cables CVVS or other suitable cables When using multicore cables use the ones with a finished outside diameter of 14 mm or less Analog output cables must have a shield wire which should be connected to the FG terminal of the instrument For the grounding use 600 V PVC insulated wires External Wiring 7 4 4 Power Wiring and Grounding Connect a power line to terminals L 24 and N 25 of the instrument and a ground
51. ion coefficient and press the SPAN key to check the span calibration coefficient 12 2 4 Initializing the Calibration Coefficients By initializing the calibration coefficients the zero calibration coefficient is reset to O and the span calibration coefficient to 1 Based on the sensor emf obtained in the next calibration after the initialization the calibration coefficients will be calculated The calibration after the initialization should be performed with special care 1 Switch to MAINT mode and enter the password 2 Change the Function Number to 05 The DATA display shows rES 3 Press the EXEC key to initialize the calibration coefficients A CAUTION The calibration coefficients disolayed in Function No 03 are still the previous ones after the initialization They will be updated only after zero and span calibrations after the initialization When the concentration of the zero gas is changed in Function No 02 the zero reference will be changed Accordingly the calibration coefficients will be initialized this is the same action as the initialization by the above procedure EE IM 11P03A03 01E lt 12 CALIBRATION gt 12 3 12 3 Executing Calibrations 12 3 1 Zero and span calibrations must be performed after the power is turned off and restarted Without valid calibration oxygen concentration cannot be measured accurately Before calibration the following should be checked 1 Th
52. is used IM 11P03A03 01E 12 2 lt 12 CALIBRATION gt 12 2 Calibration Coefficient The calibration coefficient is a deviation from the initial calibration value 12 2 1 Zero Calibration Coefficient The zero calibration coefficient is the deviation between the sensor emf obtained when a zero calibration is performed and the initial calibration value and is expressed as the one corrected for oxygen concentration It is cz O2 in Figure 12 1 When the zero calibration coefficient cz is outside of 1 25 Oz a zero calibration coefficient error will occur 12 2 2 Span Calibration Coefficient The span calibration coefficient is the deviation between the ratio of the oxygen concentration to the sensor emf k obtained when zero and span calibrations are performed and the initial calibration value and is expressed as the ratio to the ratio obtained at the initial calibration k 3 Span calibration coefficient E Where k the ratio of the oxygen concentration to the sensor emf obtained at the initial calibration k the ratio of the oxygen concentration to the sensor emf obtained in calibration When the span calibration coefficient is outside the range of 0 9 to 1 09 a span calibration coefficient error will occur 12 2 3 Checking the Calibration Coefficients 1 Switch to MAINT mode There is no need to enter the password 2 Change the Function Number to 03 3 Press the ZERO key to check the zero calibrat
53. nal Number 10 12 R3 11 12 R2 Range Selected Open Open Range 1 Open Closed Range 2 Closed Open Range 3 CAUTION When the range answerback function is enabled the high low limit alarm function is disabled IM 11P03A03 01E lt 12 CALIBRATION gt 12 1 12 CALIBRATION 12 1 Overview The instrument should be calibrated at two points using zero gas nitrogen gas with an oxygen concentration of 0 and span gas with a known oxygen concentration Figure 12 1 shows the relationship between the sensor emf and the oxygen concentration Sensor emf mV oxygen concentration of span gas zero calibration coefficient sensor emf at the initial zero calibration sensor emf at the initial span calibration sensor emf at zero calibration sensor emf at span calibration 0 cz c Oxygen Concentration 02 F12 1E ai Figure 12 1 Sensor emf vs Oxygen Concentration The ratio of the oxygen concentration to the sensor emf is calculated from the sensor emf values p1 and p2 obtained in calibration c p2 pl Assuming that the sensor emf when sample gas is applied is ps the concentration of the sample gas cs is obtained from the following equation cs k x ps pl Calibration is for obtaining k When only a zero calibration is performed the instrument is calibrated to the zero gas s value and the ratio of the oxygen concentration to the sensor emf k that was obtained from the previous calibration
54. nframe into the panel through the panel cut out See section 3 4 for panel cut out size Place the mounting brackets as indicated by the dotted lines in figure 6 2 and secure them to the mainframe with bolts M8x 10 spring washers O and plain washers Insert the mainframe into the panel until the mounting brackets touch the pane and secure them to the panel F4 1 ai Figure 4 1 Paramagnetic Oxygen Analyzer installation 1 2 Wall mounting Locate the mounting brackets Y to the side of the mainframe as shown by the solid lines in Figure 6 2 and fasten them with bolts M8x10 spring washers O and plain washers 5 by tightening the bolts lightly Attach the mainframe to the wall with bolts amp M8 x 14 and washers so that the back of the mainframe is in close contact with the wall then attach the mounting brackets to the mainframe Unit mm Position of holes for installation NTT 4 M8 F4 2E ai Figure 4 2 Paramagnetic Oxygen Analyzer installation 2 IM 11P03A03 01E lt 5 NAME OF COMPONENTS gt 5 1 9 NAME OF COMPONENTS Displays and Indicators Operation keys i 210 O om d OUT CAL 2 vol 02 OMRT RANGE AUTO RANGE OLCLRANGE o o SPAN ZERO A FUNC ENABLE O DECIMAL MEAS MAINT POINT ii AINCR EXEC POWER SWITCH INSIDE mem REER FAILED F5 1E ai
55. nnnnnnnnnnnnnnnnnnnnnnnnnnnnnannnnnnnannnannnannnannnanen 10 3 10 5 Executing e E 10 4 10 5 1 Calibration Gas Requirements sss 10 4 10 5 2 Setting Calibration Gas Concentrations ernennen 10 4 10 5 3 Manual Calibration 2 mar fear fe HR Pes 10 4 PARAMETER SETTINGS succionar 11 1 11 1 Output Holden ae Dt seiner ics oa 11 1 11 1 1 Setting the Output Hold Function During Calibration 11 1 11 1 2 Setting the Output Hold Function When an Error Occurs 11 2 11 2 Setting the Fail Contact 11 3 11 3 Action of the Maintenance Status Contact eee 11 3 11 4 Setting the High Low Limit Alarms eere 11 4 11 5 Setting the Remote Range nuussnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnannnannnannnanen 11 5 11 6 Setting the Range Switching Answerback Contact Output 11 6 CALIBRATION Enn 1201 12 1 oii 12 1 12 2 Calibration Coefficient ccsccccseceeseeeeseeeeeneeeeeeeeeeeeeeseeeeseeeesaeeeseeeenseeeneeees 12 2 12 2 1 Zero Calibration Coefficient sene 12 2 12 2 2 Span Calibration Coefficient sssssssssseese 12 2 12 2 3 Checking the Calibration Coefficients 12 2 12 2 4 Initializing the Calibration Coeffcents nennen 12 2 lt CONTENTS gt vii 12 3 Executing Calibrations eere nnne 12 3 12 3 1 Manual e leie ot e
56. o o SPAN ZERO A FUNC A ENABL O INHIBIT O MEAS MAINT Uc cgs Press SHIFT key The leftmost digit of 2 blinks indicating that the digit can be changed DECIMAL E A INCR EXEC o o SPAN ZERO A FUNC A ENABL O INHIBIT O DECIMAL L A INCR EXEC MEAS MAINT Uc 035 Press INCR key repeatedly until 9 is displayed o o SPAN ZERO A FUNC A ENABL O INHIBIT O MEAS MAINT Uc 31195 Press SHIFT key to move the blinking digit to the right DECIMAL E A INCR EXEC o o PAN ZERO A FUNC A si ENABL O INHIBIT O DECIMAL E A INCR EXEC MEAS MAINT Be 3895 Press INCR key repeatedly until 8 is displayed o o SPAN ZERO A FUNC A E MEAS MAINT DECIMAL E A INCR EXEC ENABL O INHIBIT O Uc 9800 In the same manner change the remaining digits Press DP key to move the decimal point to the desired position o o SPAN ZERO A FUNC A ENABL O INHIBIT O DECIMAL E A INCR EXEC MEAS MAINT Uc 3800 Press EXEC key to accept The digit stops blinking indicating that the change has been accepted IM 11P03A03 01E 9 6 lt 9 OPERATIONS gt 9 3 6 Selecting Data This section explains how to select and set one of parameters As an example selection of the range is shown below ENABL O INHIBIT O MEAS MAINT DECIMAL pSHIFT A INCR pg j Key Operation FUNC DATA Procedure Switch to MAINT mode Enter the passwor
57. off and on Memory E 40 Failure occurs in memory device on Turn off power to again to restart error circuit heater If error occurs again contact Yokogawa Service In manual calibration E 50 Zero calibration coefficient is outside error code appears n of 1 25 O on DATA display Remove the causes Calibration 4 8 coeffieiant In semiautomatic or Recalibrate the instrument ertor automatic calibration or reset the error status in E 51 Span calibration coefficient is below Fail contact is Function No 42 When a calibration coefficient error occurs during manual calibration the Fail lamp will not turn on and the Fail contact is not activated IM 11P03A03 01E 15 2 15 TROUBLESHOOTING 15 1 2 Error Descriptions 15 1 2 1 Sensor Unit Errors E 10 E 11 A sensor unit error occurs when the sensor emf is outside the range of 50 mV to 400 mV Possible causes are 1 The pressure of the auxiliary gas dropped Check the auxiliary gas pressure 2 The flow rate of the sample gas was greater than the specified one Check the sample gas flow rate Remove the causes and then reset the error status using the following procedure 1 Switch to MAINT mode and enter the password 2 Change the Function Number to 41 The DATA display shows rES 3 Press the EXEC key to reset the sensor emf error status 15 1 2 2 Constant Temperature Chamber Errors E 20 E 21 The temperature of the constant temp
58. okogawa shall conduct defined warranty service based on its standard When the customer site is located outside of the service area a fee for dispatching the maintenance engineer will be charged to the customer In the following cases customer will be charged repair fee regardless of war ranty period Failure of components which are out of scope of warranty stated in instruction manual Failure caused by usage of software hardware or auxiliary equipment which Yokogawa Electric did not supply Failure due to improper or insufficient maintenance by user Failure due to modification misuse or outside of specifications operation which Yokogawa does not authorize Failure due to power supply voltage frequency being outside specifications or abnormal Failure caused by any usage out of scope of recommended usage Any damage from fire earthquake storms and floods lightning disturbances riots warfare radiation and other natural changes Yokogawa does not warrant conformance with the specific application at the user site Yokogawa will not bear direct indirect responsibility for damage due to a specific application Yokogawa Electric will not bear responsibility when the user configures the product into systems or resells the product Maintenance service and supplying repair parts will be covered for five years after the production ends For repair for this product please contact the near est sales offi
59. ompletely press the EXEC key The instrument is now calibrated to that value as the span point 7 Turn off the span gas flow Apply the sample gas and switch to MEAS mode IM 11P03A03 01E lt 11 PARAMETER SETTINGS gt 11 1 11 PARAMETER SETTINGS 11 1 Output Hold 11 1 1 Analog output is held at a constant value when the instrument is in the following conditions During a warm up period analog output is held at 4 mA During calibration analog output is held at the last measured value or is not held user selectable When an error occurs analog output is held at the last measured value or at a preset value or is not held user selectable If more than one condition above occurs simultaneously the output hold are prioritized in the following order 1 When an error occurs 2 During calibration 3 During a warm up period Setting the Output Hold Function During Calibration The output hold function during calibration can be set to enabled or disabled When the function is set to enabled the analog output is held at the last measured value during calibration when set to disabled the instrument outputs measured values during calibration The hold function deactivated after the purge time has elapsed in calibration The purge time is the amount of time for sample gas to flow through the sensor unit to purge calibration gas in the unit after calibration and it is user configurable For the se
60. r Function Shows oxygen concentration in MEAS mode DATA Shows 0 00 when measured concentration is below zero regardless of value e Shows blinking value if auxiliary gas pressure falls below the setpoint when low 4 digit number Gi A auxiliary gas pressure alarm function is enabled Shows setting parameters in MAINT mode FUNC Shows Function No in MAINT mode 2 digit number Blank in MEAS mode Indicates analog output value in 10 level indicator bar Indicator runs showing actual OUTPUT d aad output value even while the analog output is being held FAIL Lights when error occurs MEAS Lights when instrument is in MEAS mode MAINT Lights when instrument is in MAINT mode H ALM Lights when measured oxygen concentration exceeds high limit alarm value L ALM Lights when measured oxygen concentration falls below low limit alarm value ENABLE Lights when password entered is effective in MAINT mode INHIBIT Lights when password is not effective in MAINT mode Lights when span calibration is selected in calibration SPAN Lights when span gas is selected in calibration gas concentration setting Blinks when span calibration is required ZERO Lights when zero calibration is selected in calibration Lights when zero gas is selected in calibration gas concentration setting Turns on and off in response to power on off status of heater for constant temperature HEATER chamber AUTO CAL Lights when automatic calibration function is enabled RMT RANGE
61. s manual you will find several different types of symbols are used to identify dif ferent sections of text This section describes these icons A CAUTION Identifies instructions that must be observed in order to avoid physical injury and electric shock or death of the operator A WARNING Identifies instructions that must be observed in order to prevent the software or hardware from being damaged or the system from becoming faulty A IMPORTANT Identifies important information required to understand operations or functions TIP Identifies additional information SEE ALSO Identifies a source to be referred to Clicking a reference displayed in green can call up its source while clicking a reference dis played in black cannot IM 11P03A03 01E iv lt INTRODUCTION gt After sales Warranty B Do not modify the product B During the warranty period for repair under warranty carry or send the prod uct to the local sales representative or service office Yokogawa will replace or repair any damaged parts and return the product to you Before returning a product for repair under warranty provide us with the model name and serial number and a description of the problem Any diagrams or data explaining the problem would also be appreciated If we replace the product with a new one we won t provide you with a repair report Yokogawa warrants the product for the period stated in the pre purchase quotation Y
62. sed during the following states and is otherwise open The contact is open when the instrument is not powered 1 2 Warm up period Stabilization period MAINT mode The MAINT lamp is lit while the instrument is in MAINT mode MAINT mode starts when pressing the EXEC key while holding the MEAS MAINT key to enter the MAINT mode and ends when doing the same key operations to return to MEAS mode Semiautomatic or automatic calibration The maintenance status contact is closed during calibration including the purge time IM 11P03A03 01E 11 4 lt 11 PARAMETER SETTINGS gt 11 4 Setting the High Low Limit Alarms The contact is activated to give an alarm when the measured oxygen concentration is outside the limit High and low alarm limit values can be set respectively When the measured value exceeds the high limit alarm value the H ALM lamp on the operation panel will turn on and the high limit alarm contact terminals 10 and 12 will close When the measured value falls below the low limit alarm value the L ALM lamp will turn on and low limit alarm contact terminals 11 and 12 will close The contacts are open when alarm is not generated and when the instrument is not powered The following describes how to set the limit values 1 2 Switch to MAINT mode and enter the password For the setting of the low limit alarm value change the Function Number to 20 and for the setting of the high limit alarm value change
63. sensor unit may result in a failure and in the worst case the instrument will need to be serviced at the factory IM 11P03A03 01E 14 2 14 INSPECTION AND MAINTENANCE 14 4 Fuse Replacement Two fuses are installed for live and neutral respectively in the power unit in the instrument If the fuse blows replace it using the following procedure 1 Before replacement turn off power to the instrument 2 Open the instrument cover Pull the fuse out from the fuse holder which is located near the power switch as shown in Figure 14 1 Turn the cap counterclockwise until it stops using a flat head screwdriver of the appropriate size Pull out the cap together with the fuse 99 Make sure that a new fuse is of the same rating Attach the new fuse to the cap and insert it into the holder Turn the cap clockwise while pushing it until it stops using the flat head screwdriver Fuse specifications Maximum rated voltage 250 V Maximum rated current 2 0A Type Time lag Standards compliance UL CSA VDE Part number A1111EF The fuse deteriorates with time It is recommended that the fuses be replaced every two years even if the fuse has not blown CAUTION If the fuse blows again soon after replacement there may be a malfunction in the circuit or in the external connections Immediately turn off power to the instrument and investigate the cause Flat Head SS Socket Screwdriver Fuse F14 1E ai
64. splayed the assigned parameter is shown on DATA display The Function Number can be changed even if the password is not effective in MAINT mode However in some functions parameters are not shown unless the password is effective In this case the DATA display shows For details refer to Table 9 3 Inthe Function Number to which no function is assigned the DATA display shows 9 3 4 Returning to MEAS Mode from MAINT mode The instrument can be returned to MEAS mode from anywhere in MAINT mode by pressing the EXEC key while holding the MEAS MAINT key IM 11P03A03 01E 9 5 lt 9 OPERATIONS gt 9 3 5 Entering Values This section explains how to enter values As an example the procedure for changing oxygen concentration value in Function No 02 is shown below The concentration of span gas is changed from 20 95 to 9 80 Key Operation FUNC DATA Procedure Switch to MAINT mode Enter the password o o SPAN ZERO A FUNC A ENABL O INHIBIT O DECIMAL E A INCR EXE MEAS MAINT Uc UUUU Press FUNC keys to show 02 on FUNC display ZERO lamp turns on DATA display shows 0 000 A FUNC A LIL HIFT A INCR EXEC 18 ENABL O INHIBIT O MEAS MAINT DECI Uc egs Press SPAN key SPAN lamp turns on DATA display shows 20 95 the default of span gas concentration The default is dependent on the specifications o o SPAN ZERO SI
65. t to execute span calibration set to 0 To execute both zero and span calibrations set to 1 The number of times of skipping span calibrations Function No 56 The number of times of skipping span calibrations can be set only when 1 is set in Function No 55 Setting to 0 here means that span calibration is not skipped i e both zero and span calibrations are executed each time Setting to 1 or greater means that span calibration is skipped the set number of times after the first zero and span calibrations The setting range is from 0 to 99 times Starting automatic calibration function Function No 57 Set to 1 to start the automatic calibration function After the set initial wait time has elapsed the first calibration starts Figure 12 2 shows the timing diagram when the number of times of skipping span calibrations Function No 56 is set to 2 Span Calibration E ir l Time Zero Calibration Initial Wait Time Calibration Interval Calibration Interval Calibration Interval 1 Zero Calibration I I k Span Calibration Time Output Hold Maintenance Status a Contact Action Automatic Calibration Function Starts F12 2E ai Figure 12 2 Timing Diagram for Automatic Calibration IM 11P03A03 01E 12 6 lt 12 CALIBRATION gt The following describes how to set the automatic calibration For the settings of the zero calibration
66. t when the contact between terminals 5 and 6 closes For the setting and functions refer to Chapter 12 Calibration 7 4 5 2 Wiring for Remote Range Contact Input The range will be switched externally by the state of the contacts between 7 and 9 and between 8 and 9 For the setting and functions refer to Chapter 11 Parameter Settings Terminal No Remote Range Contact Input Range 1 Range 2 Range 3 7 9 Open Open Closed 8 9 Open Closed Open IM 11P03A03 01E lt 8 PREPARATIONS gt 8 1 8 8 1 PREPARATIONS Adjustment of the Level in the Sensor Unit After the installation is complete adjust the angle of the sensor unit 1 Loosen the four screws these screws cannot be removed and remove the constant temperature chamber cover 2 Remove the six screws O 3 each on top and bottom and remove the heater assembly cover 9 3 Loosen the four bolts with the supplied wrench 4 Place the supplied mirror amp as shown in Figure 8 1 b Turn the adjustment screw with a flat head screwdriver or other suitable tool until the air bubble in the level 2 comes in between the two red lines Turning the adjustment screw counterclockwise brings the bubble position toward the front of the instrument b Tighten the four bolts with the wrench Make sure that the bubble is in position 6 Replace the heater assembly cover G and tighten the cover screws securely Replac
67. to 21 Set the desired value using the SHIFT INCR and DP keys Press the EXEC key to accept The setting range is 0 to 100 Oz Change the Function Number to 22 Set to 1 using the SHIFT and INCR keys and press the EXEC key to accept Now the high low limit alarm function is enabled When setting the high low limit alarms note that The alarm contact is activated when the measured value is equal to or higher than the high alarm setpoint or when the measured value is equal to or less than the low alarm setpoint The alarm contact does not operate if the high limit alarm value has been set equal to or lower than the low limit alarm value CAUTION Either the high low limit alarm function or the range switching answerback function can be assigned to this contact When the high low limit alarm function is set to enabled in Function No 22 the output range answerback function is disabled IM 11P03A03 01E lt 11 PARAMETER SETTINGS gt 11 5 11 5 Setting the Remote Range The remote range function enables the preprogrammed three ranges to be switched remotely by the range switching contact input terminals 7 8 and 9 When the remote range function is enabled the RMT RANGE lamp is lit the range selected in Function No 11 is invalid and the range selected externally is used The following describes how to set the remote range function 1 Switch to MAINT mode and enter the password 2 Ch
68. tting of the purge time refer to Chapter 12 Calibration Calibration Time Span Calibration Time I Output Hold Time I I I lt gt Purge Time I F11 1E ai Figure 11 1 Output Hold During Calibration 1 Switch to MAINT mode and enter the password 2 Change the Function Number to 04 3 Setthe output hold function during calibration using the SHIFT and INCR keys To enable the function i e the analog output is held at the last measured value set to 0 or to disable the function set to 1 Press the EXEC key to accept IM 11P03A03 01E 11 2 11 PARAMETER SETTINGS 11 1 2 Setting the Output Hold Function When an Error Occurs The output hold function when an error occurs can be set to enabled or disabled When the function is set to enabled the analog output is held at the last measured value or held at a preset value when set to disabled the instrument outputs measured values when an error occurs 1 Switch to MAINT mode and enter the password 2 Change the Function Number to 43 3 Setthe output hold function when an error occurs using the SHIFT and INCR keys To enable the function and hold the analog output at the last measured value set to 1 to enable the function and hold the analog output at a preset value set to 3 or to disable the function set to 2 Press the EXEC key to accept 4 Toseta preset value change the Function Number to 44
69. wer off and on again to restart the instrument If the error occurs again contact Yokogawa Service 15 1 2 5 Memory Error E 40 A memory error occurs if there is a failure in reading or writing the memory device Turn the power off and on again to restart the instrument If the error occurs again contact Yokogawa Service IM 11P03A03 01E lt 15 TROUBLESHOOTING gt 15 3 15 1 2 6 Calibration Coefficient Errors E 50 E 51 A calibration coefficient error occurs if the calibration coefficient obtained in zero or span calibrations is outside the normal range A zero calibration coefficient error occurs if the zero calibration coefficient is outside of 1 25 Oz A span calibration coefficient error occurs if the span calibration coefficient is outside the rage of 0 9 to 1 09 For details refer to Chapter 12 Calibration When the error occurs the FAIL lamp turns on and the FAIL contact is activated only when the semiautomatic or automatic calibration function is enabled In the case of manual calibration the DATA display shows E 5 Possible causes are The calibration gas concentration set in the instrument does not agree with the actual concentration of the calibration gas used The pressure of the auxiliary gas was lower than the specified one Zeroorspan gas was not being supplied n manual calibration a zero calibration was conducted with span gas flowing or vice versa Remove the causes and reset the error status
70. y the span gas at the specified flow rate When solenoid valves for automatic calibration are installed pressing the SPAN key closes the solenoid valve in zero gas line and opens the solenoid valve in span gas line 6 The oxygen concentration on the DATA display changes When the reading has stabilized completely press the EXEC key The instrument is now calibrated to the value as the span point 7 Turn off the span gas flow Apply the sample gas and switch to MEAS mode IM 11P03A03 01E 12 4 lt 12 CALIBRATION gt 12 3 2 Semiautomatic Calibration In the semiautomatic calibration zero and span calibrations are carried out under the preprogrammed conditions using the calibration start contact input terminals 5 and 6 The instrument will start calib calib 1 3 ration when the dry voltage free contact connected to the input is closed For the semiautomatic ration the following should be set Zero calibration time Function No 52 The amount of time for zero gas to flow The timer starts when the solenoid valve in zero gas line opens to allow the zero gas to flow through the sensor unit Set the amount of time it takes for the reading to stabilize sufficiently The setting range is from 1 to 99 minutes Span calibration time Function No 53 The amount of time for span gas to flow The timer starts when the solenoid valve in zero gas line closes and the solenoid valve in span gas line opens to allow the span g

Model MG8G Paramagnetic Oxygen Analyzer

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