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Operation

5.4 Operating functions

OXYMAT 64

Operating Instructions, 06/2008, A5E00880383-03

Measuring range types

The permissible measuring range constellations result which are shown in the figure below:

PEHHQGRIPHDVXULQJUDQJH

W\SH%

L PHDVXULQJUDQJH

PEH>L@PEH>L@

W\SH$

PEH>L@!PEH>L@

Figure 5-27 Measuring range types

Two measuring range types are distinguished:
Type A:
The full-scale value must be less than the full-scale value which follows it. The top

measuring range limit therefore becomes higher with every measuring range.

PEH

PED

mba Start of measuring range
mbe End of measuring range
UU

Lower switchover point: select the smaller

measuring range

Upper switchover point: select the larger

measuring range

Figure 5-28 Measuring range type A

Summary of Contents for 7MB2041

Page 1: ...er for measurements of trace oxygen 7MB2041 Operating Instructions June 2008 www siemens com processanalytics Subject to change without prior notice A5E00880383 03 Siemens AG 2008 Siemens AG Industry Automation IA Sensors and Communication Process Analytics 76181 KARLSRUHE GERMANY Continuous gas analysis A5E00880383 4 019169 158404 A5E00880383 ...

Page 2: ......

Page 3: ...ion 5 Repair maintenance and servicing 6 Technical data 7 Dimension drawings and charts 8 Spare parts and accessories 9 Appendix A List of abbreviations acronyms B Continuous gas analysis Gas analyzer for measurement of trace oxygen OXYMAT 64 Operating Instructions 06 2008 A5E00880383 03 ...

Page 4: ...cumentation Commissioning and operation of a device system may only be performed by qualified personnel Within the context of the safety notes in this documentation qualified persons are defined as persons who are authorized to commission ground and label devices systems and circuits in accordance with established safety practices and standards Prescribed Usage Note the following WARNING This devi...

Page 5: ... 2 6 2 ELAN interface 17 2 6 3 SIPROM GA functions 19 2 6 4 PROFIBUS DP PA 20 3 Installing and connecting 23 3 1 Safety information 23 3 2 Installation requirements 23 3 3 Gas connections and internal gas routing 24 3 3 1 Sample gas line 24 3 3 1 1 Gas connections 24 3 3 1 2 Sample gas inlet pipe 24 3 3 1 3 Sample gas outlet pipe 24 3 3 2 Sample gas quality 25 3 3 3 Pressure sensors 25 3 3 4 Gas f...

Page 6: ...ed value display 47 5 3 Menu control 48 5 3 1 Entering the main menu 48 5 3 2 Entering a submenu 48 5 3 3 Jump back to coded decoded display mode 50 5 3 4 Fast function selection 50 5 4 Operating functions 51 5 4 1 Overview of operating functions 51 5 4 2 Analyzer status 52 5 4 2 1 Analyzer status submenu 52 5 4 2 2 Analyzer configuration function 1 52 5 4 2 3 Diagnostic values function 2 53 5 4 2...

Page 7: ...s function 76 90 5 4 6 9 Analog output memory function 77 91 5 4 6 10 Calibration tolerances function 78 91 5 4 6 11 Change codes function 79 93 5 4 6 12 Device test function 80 93 5 4 6 13 Language selection function 81 95 5 4 6 14 Correction of cross interference function 83 95 5 4 6 15 Switch valves function 85 98 5 4 6 16 Error on off function 87 99 5 4 6 17 PROFIBUS configuration function 90 ...

Page 8: ...lectronics 123 9 4 Service 124 9 4 1 General information 124 9 4 2 Repairs 125 9 4 3 Spare parts 125 9 4 4 Error Description 126 9 4 5 Decontamination declaration 127 A Appendix 129 A 1 Declaration of conformity 129 A 2 Overview of operating functions 131 A 3 ESD guidelines 132 B List of abbreviations acronyms 135 B 1 List of abbreviations 135 Glossary 139 Index 147 ...

Page 9: ...t knowledge of automation technology measuring and control systems Knowledge and technically correct implementation of the safety notes and warnings contained in this manual are required for safe installation and commissioning as well as for safety during the operation and maintenance of the described product Only qualified personnel have the required professional knowledge for correctly interpret...

Page 10: ...cable liability provisions The provisions defined in the sales contract for the responsibility for defects are neither extended nor limited by the remarks in this document 1 5 Standards and regulations As far as possible the harmonized European standards were the basis for the specification and production of this device If no harmonized European standards have been applied the standards and regula...

Page 11: ...in CO2 Main features 2x four measuring ranges freely parameterizable four each for vpm and Electrically isolated measured value output 0 2 4 to 20 mA also inverted as well as according to NAMUR Autoranging can be configured remote switching possible Measured values can be stored during calibration Time constants can be selected within wide ranges static dynamic noise suppression i e the response t...

Page 12: ...ternal gas paths stainless steel capillary FPM FKM hose Connections for sample gas Inlet clamping ring gland for pipe diameter 6 mm or 1 4 Outlet pipe coupling with diameter 6 mm or 1 4 Sensor made of ZrO2 ceramic 2 2 Design Display and control panel Large LCD field for simultaneous display of measured value digital and analog analyzer state and measuring range Contrast of the LCD field is adjusta...

Page 13: ...ing to NAMUR maintenance and specialist levels 3 Display of activated measuring ranges 4 Five softkeys for menu control 5 ESC key for returning to previous input step with acceptance of any changes 6 INFO key for help functions for the current menu 7 MEAS key for returning to measuring mode 8 CLEAR key to delete numerical inputs 9 ENTER key to accept numerical values 10 Numerical keypad for enteri...

Page 14: ...ves Two configurable analog inputs e g external pressure sensor and correction of cross interference Can be extended by eight additional binary inputs and eight additional relay outputs for automatic calibration with max four calibration gases Communication RS 485 included in the standard analyzer connection at rear Options RS 485 RS 232 converter RS 485 Ethernet converter RS 485 USB converter Lin...

Page 15: ...the differences in concentration on the two sides Since ZrO2 is electrically conductive at 650 C there is a migration of ions in the direction of the lower partial pressure A gradient in the oxygen ions is produced across the thickness of the ZrO2 membrane which leads to a potential difference between the two platinum electrodes in accordance with equation 1 The inclusion of crystal lattice faults...

Page 16: ...880383 03 Sensor design 5 0 1 Measuring electrode 2 Reference electrode 3 Heating 4 Thermocouple 5 Contact to reference electrode 6 Contact to measuring electrode 7 Ceramic protective layer 8 Tube made of ZrO2 and Y2O3 or CaO mixed oxide ceramic 9 Sample gas input Figure 2 2 Sensor design ...

Page 17: ...to the analyzer free of dust The production of condensation must also be avoided Therefore gas modified for the measurement tasks is necessary in most application cases 2 4 Influence of interfering gas Table 2 1 Examples of typical offsets caused by interfering flammable gases on a catalytically inactive sensor Measured component interfering gas Offset caused by interfering gas 78 vpm O2 140 vpm C...

Page 18: ...e operating function 83 See also Correction of cross interference function 83 Page 95 2 5 Materials used in the sample gas path Table 2 3 Materials wetted by sample gas O2 sensor ZrO2 steel 1 4571 Sample gas inlet and outlet Steel 1 4571 Bypass restrictor only high pressure version Steel 1 4571 Gaskets PTFE Tube connectors Polyamide 6 Tube FKM FPM Viton Flow metering tube Glass Outlet restrictor G...

Page 19: ...an link a maximum of 12 analyzers with up to four components This connection is also possible without a PC The functional principle is shown in the following figure 1 Computer 2 RS 485 RS 232 converter with RS 485 and RS 232 cables 3 RS 485 bus connector with bridge 4 Analyzer 5 RS 485 cable 6 RS 485 bus connector 7 RS 485 network 8 9 pin SUB D connector 9 Optional RS 485 repeater Figure 2 3 Typic...

Page 20: ...formation feedback Ordering information Order No Interface description C79000 B5200 C176 RS 485 RS 232 converter C79451 Z1589 U1 SIMATIC cable bus line 6XV1 830 OEH10 SIMATIC bus connector 6ES7 972 OBB11 OXAO 9 pin SUB D connector 6ES7 972 OBB11 OXAO Repeater 6ES7 972 OAA01 OXAO Further information can be found in the ELAN interface description Order Nos C79000 B5200 C176 German C79000 B5274 C176 ...

Page 21: ...tware Drift values according to QAL 3 DIN EN 14181 Hardware requirements PC laptop Pentium 133 MHz RAM 32 MB CD ROM drive Vacant disk capacity min 10 MB VGA graphics card supported by Windows Printer supported by Windows Vacant COM port RS 232 for direct coupling to ELAN RS 485 network For connection of the Ethernet 485 interface converter a standard network of 10 Mbit or 100 Mbit RJ 45 connection...

Page 22: ...cking PROFIBUS International PNO is an independent institution and represents the interests of many manufacturers and users Besides services such as consulting training and device certification its primary job is to further develop standardize and promote PROFIBUS technology The binding functionality definition for a device class in the form of a profile is the condition for standardized device be...

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Page 25: ...or is exposed when the housing is open touching can result in skin burns Before opening the housing always wait for at least one hour to allow the device to cool down 3 2 Installation requirements Select an installation location which is as vibration free as possible If the OXYMAT 64 is installed in a cabinet or desktop housing it must be supported on rails It is not sufficient to only secure the ...

Page 26: ...n inlet pipe made of stainless steel with an internal electrolytically polished surface In addition the number of pipe glands and other connecting elements should be kept as low as possible Glands are potential sources of leaks and possess cavities which only release O2 slowly resulting in an slower rise in signal It should also be noted that steam has an influence on the quality of the measuremen...

Page 27: ...pressure on the measured value The pressure sensor is present on the sensor electronics and measures the sample gas pressure via the sample gas outlet pipe The pressure sensor need not be considered further in the device installation 3 3 4 Gas flow High pressure version The sample gas pressure 3000 to 6000 hPA is regulated by the pressure regulator 4 at approx 2000 hPA or is offered in the version...

Page 28: ... 1 Sample gas inlet inlet pressure Without internal pressure regulator 2000 hPa regulated With internal pressure regulator 3000 to 6000 hPa 2 Sample gas outlet sample gas must flow off free of dynamic pressure 3 Pressure regulator ordered version 4 O2 sensor 5 Pressure sensor 6 Bypass restrictor 7 Pressure switch 8 Flow metering tube 9 Purging gas connection 10 Restrictor 11 Restrictor ...

Page 29: ...ceeds 100 hPa rel a maintenance request is output In order to reduce the 90 time we recommend installation of a bypass upstream of the gas inlet which then provides a faster exchange of gas This is particularly important with long sample gas lines between the gas sampling point and the analyzer Please make absolutely sure that the flow in the OXYMAT 64 does not exceed 125 ml min 3 2 VHQVRU Figure ...

Page 30: ...hich lies at the potential of the enclosure The cross section of each wire must be 1 mm Connect the phase conductor to the marked position in the plug Install the mains line separately from the signal lines Provide a mains disconnection device in the direct vicinity of the device for load rating see rating plate It must be readily accessible and marked Check whether the existing mains voltage agre...

Page 31: ...ng assignments 68 FRQQHFWRU 3RZHU VXSSO 9 PD 5 5 5 5 0 0 Figure 3 3 Example of spark suppression on a relay contact The reference ground of the analog inputs is the potential of the housing The analog output is floating The shielding of the interface line must be at the potential of the housing Connect the shield of the line to the shield of the SUB D plug connector with a high contact area The co...

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Page 35: ... 3 5 Dimensions for preparing installation OXYMAT 64 Operating Instructions 06 2008 A5E00880383 03 33 3 5 Dimensions for preparing installation OXYMAT 64 Figure 3 7 Dimensions for preparing installation front view and plan view ...

Page 36: ...stalling and connecting 3 5 Dimensions for preparing installation OXYMAT 64 34 Operating Instructions 06 2008 A5E00880383 03 0 Figure 3 8 Dimensions for preparing installation view from left and rear view ...

Page 37: ...s and information 4 1 2 Explosion hazard DANGER Explosion hazard The OXYMAT 64 gas analyzer must not be used to measure mixtures which are ignitable in normal operation WARNING Explosion hazard The analyzer must not be operated in potentially explosive atmospheres Gases with flammable components at concentrations above the lower explosive limit must not be supplied to the analyzer ...

Page 38: ...on Electric connection 4 1 4 Toxic gases WARNING Toxic gases When measuring toxic gases it could occur that sample gas accumulates in the analyzer because of leaks in the gas path To prevent the danger of poisoning the analyzer or the system must be purged with air The gas displaced by purging must be collected using appropriate equipment and routed for environmentally friendly disposal via an exh...

Page 39: ...ing function 50 Pressure correction The influence of the sample gas pressure is already corrected by the sensor electronics A special adjustment is not necessary The pressure can be read using function 2 Influence of interfering gases Flammable gases influence the O2 measurement in that they reduce the O2 content of the sample gas The sensor temperature the concentration of flammable components as...

Page 40: ...t It must be 7 5 l h If different set the desired flow by adjusting the bypass capillary inside the analyzer A leak test should subsequently be carried out to check for leaks in the supply line Low pressure version The sample gas flow must be set externally to 125 ml min 7 5 l h The flow can be read on the flowmeter at the front Depending on the application it may be meaningful to install a bypass...

Page 41: ...te whether the leak is in the inlet pipe or in the analyzer itself See also Adjusting the sample gas flow Page 38 4 3 3 Calibrate measuring ranges Measuring ranges spans The desired spans start of scale and full scale values of measuring range can be defined using function 41 The start of scale full scale values are allocated to the analog current values 0 2 4 mA to 20 mA If you enter the same val...

Page 42: ...ted if AUTOCAL function 24 is deactivated Single total calibration A single or total calibration is selected using function 23 Single calibration means that each measuring range is calibrated using a separate calibration gas During a total calibration the measuring ranges defined using function 41 are calibrated together Sensitivity Select function 21 and carry out the desired calibration Note tha...

Page 43: ...ion gas for zero point zero gas 5 8 vpm O2 Calibration gas for span 43 3 vpm O2 Step Procedure Function No Input Remark 1 Select start of scale and full scale values of measuring range 41 0 50 vpm 0 vpm 0 2 4 mA assignment to analog output 50 vpm 20 mA assignment to analog output 5 8 vpm Zero setpoint 2 Enter setpoints for zero and span 22 43 3 vpm Span setpoint 3 Calibrate zero 20 Calibrate using...

Page 44: ...as for span 62 O2 Step Procedure Function No Input Remark 1 Select start of scale and full scale values of measuring range 41 20 80 20 0 2 4 mA assignment to analog output 80 20 mA assignment to analog output 20 64 Zero setpoint 2 Enter setpoints for zero and span 22 62 00 Span setpoint 3 Calibrate zero 20 Calibrate using calibration gas for zero point zero gas 4 Calibrate span 21 Calibrate using ...

Page 45: ... 2 1 O CLEAR 9 OXYMAT 64 SIEMENS vpm O2 Figure 5 1 Measured value display and control panel 1 Status display 6 Display of activated measuring ranges with the current range marked 2 Display of dimension 7 Limit marker on bargraph 3 Status line 8 Measuring range start of scale and full scale values 4 Display of measured component 9 Analog display of measured value 5 Buttons with varying function sof...

Page 46: ...nction possible here are Submenu selection function selection Selection of a subfunction 5 1 3 Editing inputs The values in the menus shown in this chapter are meant as examples An active input field is shown with colons e g 10 as a limiter The cursor blinks under the number to be entered By pressing the ENTER button you finish your input and the value is stored If there are several input fields o...

Page 47: ...de you can reach this mode by pressing the MEAS button twice Decoded display mode Measured value display is shown The submenus protected by the entered code are accessible The current operating state of the device except for Measure is displayed in the bottom line Functional check active Measured value can be influenced From the operator control mode you can reach this mode by pressing the MEAS bu...

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Page 49: ...tates Coded display mode and Decoded display mode Note Device operating state In the Measured value display the current operating state of the device can be read in the bottom line The Measured value display is not an operating state and not an operating mode but is simply displayed It must not be confused with the Measure operating state also Measuring state of the device CAL CTRL CODE O2 O 650 O...

Page 50: ... 5 4 Measured value display On the right side of the measured value display is the measured component with an arrow pointing to the right A softkey is assigned to this component Press this softkey to call the main menu 5 3 2 Entering a submenu The main menu consists of five submenus Main menu O2 Analyzer status Calibration Measuring ranges Parameters Configuration Figure 5 5 Main menu ...

Page 51: ...so decodes level 1 By entering a corresponding code the device switches to the operator control mode whereby the functional check is activated The functional check CTRL shown in the status line of the measured value display is always activated by the device when an intervention endangers correct measurement e g when the code is entered If you have configured a corresponding relay using function 71...

Page 52: ...device After jumping back to Decoded display mode with ESC or MEAS if you press MEAS again you put the device back into Coded display mode Only now is the functional check deactivated again 5 3 4 Fast function selection In order to directly access the desired function when operating frequently from the Coded display mode a Power user operation was created This allows you to directly access the des...

Page 53: ...suring ranges Define measuring ranges Parameters code 2 50 51 52 53 54 55 56 58 59 60 Electric time constant Limits On off functions Status signals Graphic measured value display Measured value display LCD contrast Date time Measuring point switchover Logbook settings Configuration code 2 70 71 72 73 74 75 76 77 78 79 80 81 82 83 85 86 87 90 91 99 Analog output Relay assignment Binary inputs ELAN ...

Page 54: ...hange in the operating mode The analyzer status submenu offers you various functions for displaying device parameters and stored data 5 4 2 2 Analyzer configuration function 1 After this function is selected the following device manufacturing data appear Motherboard Firmware No Order No of the software in the EPROM for the motherboard Order No Information on device ordering data Production No Indi...

Page 55: ...do not trigger a maintenance request or fault message The logbook contains a max of eight pages with four messages per page It works according to the rotating buffer principle i e when all eight pages all 32 locations are occupied the oldest message is overwritten You can delete or block logbook entries function 60 but you can also switch them off individually function 87 Note If an error occurs w...

Page 56: ... functions available in this menu Press the fifth softkey continue to access further functions This menu is protected by the code of code level 1 The OXYMAT 64 offers the option of a manual or automatic calibration Autocal function 24 The latter is only possible with an optional board which contains an additional eight binary outputs and eight relay outputs The setpoints for the zero and span cali...

Page 57: ... The zero is calibrated simultaneously for all measuring ranges even when the span of the measuring ranges is calibrated individually Only initiate calibration when the measured value actual value has stabilized after applying the zero gas Otherwise the calibration may be imprecise If there is a lot of noise increase the time constant before calibrating function 50 See also Electric time constants...

Page 58: ...omplete calibration procedure If the calibration is aborted because the calibration tolerance is too large check your calibration gas as well as for leaks in the analyzer chapter 4 3 2 If the calibration gas is OK and if there are no leaks try to carry out a basic calibration using function 26 adjust sensor If the calibration tolerance is still too high the sensor may be faulty Total calibration M...

Page 59: ... setpoint input with total calibration The third measuring range is chosen here as the leading measuring range With single calibration there is no choice for the leading measuring range The definition of the leading measuring range does not apply to Autocal mode 5 4 3 5 Total single calibration function 23 23 Calibr settings O2 Total range calibration Figure 5 13 Select calibration method With thi...

Page 60: ...atic calibration can only be started if the device is in the Measure operating state Autocal check O2 Figure 5 14 Autocal function Note The settings for Autocal Check subfunctions 1 to 3 are valid both for Autocal automatic calibration and for Autocal Check automatic check that the set calibration tolerances are complied with without calibration The settings for Autocal Check 4th subfunction only ...

Page 61: ...ked with respect to selectable calibration tolerances Autocal Check start via binary input If you previously configured a binary input using function 72 you can initiate Autocal via a binary input Trigger Autocal once In the state Autocal on you can start an Autocal sequence at any time using the softkey Trigger Autocal once providing the device is in the Measure operating state A sequence initiat...

Page 62: ...etween calibrations Signaling contact Use the signaling contact to initiate an automatic calibration process of a second device for example or to signal the beginning or end of an Autocal Relay outputs If you have defined relay outputs for the sample gas zero gas calibration gases and or measuring calibration function 71 these are used to activate the corresponding external solenoid valves The sam...

Page 63: ...gure 5 18 Example of Autocal sequence Acal Check sequence O2 9 min 1O min 11 min 12 min continue Figure 5 19 Example of Autocal sequence List for the Autocal sequence Autocal sequence Zero gas 1 Zero gas 2 air with function 26 Calibration gas 1 Calibration gas 2 Calibration gas 3 Calibration gas 4 Flush sample gas Sample gas intermediate operation Signaling contact ...

Page 64: ...immediately with the Autocal sequence If Autocal is switched off the device only starts an Autocal sequence if Autocal is switched on within one minute after entering 0 If not the total time between two Autocal cycles passes by starting with the input of 0 Note The clock inside the device also runs when Autocal is deactivated It restarts when the device is switched on and must be set to the curren...

Page 65: ...y Acal Chk Dif Both will be reset again after an error free Autocal W10 is retained in the logbook When starting via cycle initiate Autocal Check If this function is activated the device executes an Autocal Check when Autocal is started via a cycle In other words it only checks that the calibration tolerances are observed but does not carry out a calibration Sequence 1 Start the Autocal Check By m...

Page 66: ...75 Save user data before you call function 26 You can recalibrate the sensor characteristic using this function This function guarantees that the displayed O2 concentration agrees with that of the ambient air We recommend that you carry out this function if the calibration tolerance is too large when calibrating with one of the functions 20 or 21 Note Prior to this step you must first check the an...

Page 67: ...ibration gas under Setpoint of leading MR 5 Select function 26 The following display is output ABBRUCH Setpoint 20 64 vol Act value 20 16 vol T Sensor 650 0 C Please connect air cont with Span cal Start calibration CANCEL 26 Adjust sensor O2 Figure 5 23 Calibration of sensor zero Note The relay for zero gas 2 is set if it has been previously appropriately parameterized 6 Connect ambient air to the...

Page 68: ...206400 00vpm T Sensor 650 0 C Please connect span gas Start calibration CANCEL Figure 5 24 Span calibration Note The activated calibration gas relay is then switched 11 To calibrate the span of the sensor signal connect the calibration gas to the sample gas inlet Ensure that the input pressure is correct It must correspond to the pressure values in step 3 12 Check the flow on the front panel rotam...

Page 69: ...0 4O Select ranges O2 MR1 O O 1O O vpm MR2 O O 1OO O vpm MR3 O O 1OOO O vpm MR3 O O 1OOOO O vpm Auto range Figure 5 26 Select measuring ranges You can select a fixed measuring range or switch to automatic measuring range switching All selection options are subject to mutual interlocking Automatic measuring range switching is only possible under the following conditions At least two measuring range...

Page 70: ... L H G F E D Figure 5 27 Measuring range types Two measuring range types are distinguished Type A The full scale value must be less than the full scale value which follows it The top measuring range limit therefore becomes higher with every measuring range PEH 28 88 PED mba Start of measuring range mbe End of measuring range UU Lower switchover point select the smaller measuring range OU Upper swi...

Page 71: ... of the measuring range The OU lies at 90 HystE of the measuring range Type B The full scale value must be greater than or equal to the full scale value following it Since the spans must simultaneously become larger the start of scale values of the following measuring ranges become continuously smaller PEH 88 28 PED mba Start of measuring range mbe End of measuring range UU Lower switchover point ...

Page 72: ...rt end value No 1 O OOO 1O O vpm 2 O OOO 1OO O vpm 3 O OOO 1OOO O vpm 4 O OOO 1OOOO O vpm Figure 5 32 Define measuring ranges You can define a maximum of four measuring ranges whose start of scale values are allocated to the bottom value 0 2 4 mA and whose full scale values are allocated to the top value 20 mA of the analog output If the message Measuring ranges not plausible appears this means th...

Page 73: ...he noise reduction is approximately equivalent to a low pass filter with the corresponding time constant The display delay is given as the 90 time The time constant ti acts within an parameterizable effective interval which is defined in of the smallest span It attenuates small changes in the measurement e g noise on the one hand but becomes ineffective immediately when the measured value exceeds ...

Page 74: ...red limit is exceeded or fallen short of Applies to measuring range Here you allocate the limit to the desired measuring range s by pressing the third softkey several times When you do so the pointers move over the measuring range numbers and indicate the ranges in which the limit monitor is to be active In the above example this is measuring range 3 Limit alarm The limit monitoring of every singl...

Page 75: ...tion 52 is used to switch the following functions on and off Table 5 3 Functions switched on off by function 52 Description Fct No Remarks Automatic measuring range switching 40 Measured value memory 77 Temperature recompensation of zero point 86 Temperature recompensation of span 86 Signal tolerance violation 78 Limit monitoring 1 51 Limit monitoring 2 51 Limit monitoring 3 51 Limit monitoring 4 ...

Page 76: ...ates the functional check softkey 5 on the function screen when it determines that the measured value was influenced This is the case During the warm up phase After entry of the code i e change to Operator control mode During automatic calibration Autocal or remote calibration Note Functional check CTRL If the functional check is active the measured value might be falsified The measured value must...

Page 77: ...ional check cannot be switched off using function 52 CTRL CTRL device is in the Warm up phase or in Operator control mode or calibration is in progress If an error occurs during operation the message Maintenance request Fault or Measuring protection appears in the status line depending on the severity of the error This message is alternately displayed with the status messages In addition when comm...

Page 78: ...0 8 6 4 2 O vpm Parameter O 1 2 3 4 5 6 7 8 9 O min Figure 5 39 Measured value trend The most recent measured value is on the time axis at the left at t 0 Select softkey 1 Parameters Here assign a certain measuring range to the measured value axis Val display 24h O2 Optimum meas val dis Range 1 Range 2 Range 3 Range 4 Figure 5 40 Parameters for measured value representation Activate Optimum measur...

Page 79: ...mber of decimal places depends on the size of the measured value With the softkeys 3 and 4 you can choose the total number of digits and the maximum number of decimal places Note that a maximum of five digits can be displayed decimal point also counts as one digit 5 4 5 8 LCD contrast function 56 56 LCD contrast O2 brighter darker Basic setting Test Figure 5 42 Setting the LCD contrast With this f...

Page 80: ...year By pressing ENTER jump to the next input field Set the time in the same way hours minutes The system clock of the device is not buffered against mains failures not a real time clock NOTICE When the device is switched off the clock stops and is not updated The settings are especially important for troubleshooting Errors which are always stored in the logbook function 60 can be allocated more e...

Page 81: ... The condition is that you parameterized the measuring point relay beforehand using function 71 Relay outputs which then actuates the corresponding solenoid valves Every measuring point relay is also allocated a time period which you can enter in the respective input field Values between 0 and 60 000 minutes are possible for this input Press the fifth softkey to activate deactivate the measuring p...

Page 82: ...ok Figure 5 45 Parameterizing the logbook With this function you delete or block logbook entries From the Coded decoded display mode you can also delete logbook entries with the button sequence 5 5 5 5 ENTER Status messages such as maintenance requests or faults cannot be suppressed by blocking This only prevents an entry into the logbook See also Logbook function 3 Page 53 ...

Page 83: ...ains all functions required for configuring the device Press the fifth softkey continue to branch to further configuration functions 5 4 6 2 Analog output function 70 7O Analog output O2 4 2O mA output inverted Suppress negative measured values Figure 5 47 Configuring the analog output With this function you can configure the analog output With softkey 1 define the start of scale value of the anal...

Page 84: ...ue mA Start of scale value mA Full scale value mA 0 20 1 21 0 21 2 20 1 21 2 21 4 20 2 21 4 21 4 20 NAMUR 3 8 20 5 3 21 5 Note If the electronics is defective it is possible that the analog output may get stuck at approx 1 mA or approx 24 mA 5 4 6 3 Relay outputs function 71 71 Relay outputs O2 R 1 Fault R 2 Main req R 3 Funct cont R 4 Vacant cont Figure 5 48 Assigning the relays There are six fre...

Page 85: ...ng Functional check CTRL Functional check active e g when changing to Operator control mode in the warm up phase when Autocal is running when calibration is running Functional check deactivated Signal when device is decoded warm up phase max 2 h calibration running Autocal Sample gas Supply of sample gas Valve actuation Zero gas 1 to 2 Supply of zero gas Calibration gas 1 to 4 Supply of calibratio...

Page 86: ...rther binary inputs optional board If you activate the NAMUR operating mode with softkey 1 the binary inputs behave as in table Binary input activation functions marked with N If you deactivate the NAMUR operating mode the binary inputs behave compatibly with the software outputs of the older version V 4 3 0 in the table Binary input activation functions marked with X Press softkey 2 The following...

Page 87: ...activated Fault 1 to 7 N X Maintenance request 1 to 7 N X e g due to Signal from a gas preparation system Condensate overflow Gas cooler defective Fault message from interfering gas analyzer Acknowledge N X Activation deletes all logbook entries However if the cause of a fault or maintenance request has not been eliminated the corresponding message reappears in the logbook Functional check 1 to 4 ...

Page 88: ...lves are closed The device then switches to the Measure operating state and all other states e g Calibration are left Zero calibration Span calibration N X Activation initiates calibration See also Example binary inputs Autorange N X Activate Automatic measuring range switching Autocal check N X Note Effective activation only possible in Measure operating state Start Autocal check function 24 Meas...

Page 89: ...alue telegrams on off Here you can switch the cyclic independent sending of measured values every 500 ms on or off ELAN tag Display of the tag assigned to the analyzer in the ELAN network It has a maximum of 10 alphanumeric characters Note Independent sending of measured values When you have set up your own communication control system this option offers a simple way of checking an ELAN telegram I...

Page 90: ...Save user data Load user data Load factory settings Figure 5 53 User data memory You can configure the user data memory with this function Press the softkey 1 Save user data e g after the system has been successfully commissioned All individual settings are then saved Press the softkey 2 Load user data to load the last user data saved These functions are important when the device is undergoing rep...

Page 91: ... danger that a previous unwanted configuration will be loaded by Load user data function 75 The following figure contains an overview of the interaction between the various memory modules DFWRU EDVLF GDWD 3URJUDP 5XQQLQJ RSHUDWLRQV FW RQO VHUYLFH HQJLQHHUV IWHU HYHU FKDQJH RUNLQJ DUHD 8VHU GDWD DFWRU GDWD FW FW 3DUDPHWHU PHPRU 3520 0DLQ PHPRU 5 0 3URJUDP PHPRU 3520 ODVK 3520 FW RQO VHUYLFH HQJLQHH...

Page 92: ...lts can be suppressed by entering a blanking time of 0 to 5 s The entered time has the effect that the last measured value before the spike occurred is displayed so that the measured result is not influenced Times can be entered in steps of 0 1 s Under Level in of smallest MR enter the threshold value in of the smallest measuring range above which the noise signals are to be suppressed Note If a c...

Page 93: ...eactivate the entire function Switch softkey 1 to active in order to output the last measured value at the analog output Switch softkey 2 to active in order to output 0 2 or 4 mA Switch softkey 3 to active in order to output 21 mA 5 4 6 10 Calibration tolerances function 78 Setting the calibration tolerances 78 Calib tolerance O2 Calib tolerance at zero in of smallest MR 6 Calib tolerance of sens ...

Page 94: ...n tolerance which can be set from 0 to 99 refers to the measuring range with the smallest span in the case of the zero point and to the measuring range where the total adjustment is carried out marked with in function 22 in the case of the span Example Measuring range 1 0 to 100 vpm O2 Measuring range 2 0 to 1000 vpm O2 Leading measuring range in which calibration takes place Measuring range 2 Sel...

Page 95: ...nding operation level 5 4 6 12 Device test function 80 8O Analyzer test O2 Keyboard Relay and Binarytest Analog test Figure 5 59 Testing the device With this function you can test the interfaces of the device Keyboard test You can test all keys on the control panel by means of the keyboard test The five softkeys on the right edge can be used to make the associated item appear disappear If a number...

Page 96: ...board there are another eight relay binary inputs on a second page With the relay test individual relays can be activated This is done via the input field With 1 the relay is on with 0 it returns to its release condition Numbers other than 0 and 1 are not accepted by the input field After leaving function 80 the relays are back in the state they had before calling the relay and binary test The cur...

Page 97: ...rference correct 1 Interference correct 2 Interference correct 3 Interference correct 4 Figure 5 62 Carrying out correction of cross interference Flammable gases influence the O2 measurement in that they reduce the O2 content of the sample gas The sensor temperature the concentration of flammable components as well as the O2 concentration and sample gas flow all have an effect The relationship bet...

Page 98: ...e following distinctions are possible No correction of cross interference Correction of cross interference with constant influence of interfering gas Correction of cross interference with variable influence of interfering gas via analog input Correction of cross interference with variable influence of interfering gas via ELAN Correction of cross interference with constant influence of interfering ...

Page 99: ...rent or digital signal via ELAN Correction of cross interference via ELAN Press softkey 1 again to carry out the correction of cross interference via the RS 485 serial interface ELAN Interf correct 1 O2 with var interference influence via ELAN valid for range Interferencing gas 1 OO causes an interference O O5 Channel 03 Comp 1 1 2 3 4 for range O OO 1O OO Meas val 1 OO vpm Figure 5 65 Correction ...

Page 100: ...t 1 Rel 1 02 Zero gas Rel 3 Figure 5 66 Switching valves With this function you can manually switch up to six valves This is done via the relays which are allocated to the individual valves and are available on the motherboard and optional board The precondition is that the corresponding relays have been previously configured with function 71 Relay outputs The Switch valves function only applies t...

Page 101: ...ue display and no external signal sent Fault messages which do not apply to this analyzer are identified by the absence of text following the fault number See also Removing faults Page 109 5 4 6 17 PROFIBUS configuration function 90 Relay by PB off 9O Profibus Config O2 Address 126 TAG OXYMATSIXTYFOUR Ident number 1 Software version 2 0 O Boot software 0 2 0 Figure 5 68 Configuring PROFIBUS This f...

Page 102: ... DD the value 1 must be entered for Ident number Relay by PB The 8 relays of the additional electronics optional board can be controlled over PROFIBUS using this To allow activation none of these relays must be occupied by a device internal function Note The parameter Relay by PB is only available with software version 2 0 0 and higher of the PROFIBUS additional electronics optional board 5 4 6 18...

Page 103: ...stic Several calibrations compensations and linearizations are influenced by these values Therefore all calibrations compensations and linearizations must be redetermined following a change The change in dimension takes place in less than 1 second The analog current output is instable during the change and the measuring range limit relays etc are also influenced This is usually irrelevant since th...

Page 104: ... function 77 Page 91 5 4 6 19 Factory settings function 99 Factory settings O2 The following functions are exclusively for MAINTENANCE PERSONNEL Caution Manipulations in this level may permanently in terfere with the analyzer Press ESC to return Figure 5 70 Default settings With this function the operator can access the factory functions level These settings are intended only for maintenance perso...

Page 105: ...s which in turn could result in damage to the analyzer e g danger of explosion or to the health of persons e g poisoning Maintenance The analyzer must be subject to annual maintenance in order to check the electrical safety and correct working It is up to the owner to decide on extension of the maintenance interval in individual cases If standards or directives apply to the gases components used t...

Page 106: ...pporting plate metal bracket and the gas path components mounted on the bracket 6 2 2 Installation and removal of the sensor module The sensor module is not particularly susceptible to faults If a component of the sensor module is faulty as a result of a material fault or incorrect operation the complete sensor module must be replaced It is then replaced by an equivalent module Individual componen...

Page 107: ...s a density similar to N2 e g oil free compressed air to the sample gas inlet Then set a relative pressure of approx 2000 hPa at the sample gas inlet for the high pressure version without internal pressure regulator If a pressure regulator is fitted a relative pressure of 3000 6000 hPa can be connected If the displayed flow deviates from the setpoint of 7 5 l min set the setpoint by adjusting the ...

Page 108: ...re regulator 5 Fit the supplied capillary tube with restrictor between the input of the T piece present on the O2 sensor and the output of the pressure controller 6 Carry out a leak test as described in Section Commissioning and operation 7 Apply a sample gas pressure 0 2 MPa and turn the screw of the pressure controller until the cone floats in the flowmeter tube Then adjust the setpoint flow 125...

Page 109: ...therboard 6 Carefully remove the motherboard To install the boards carry out the same steps in the opposite order Removing the optional adapter boards The procedure is the same as for the motherboard Unlike the motherboard both the optional and adapter boards are only fixed to the rear of the housing with two screws 6 4 Replacement of fuses WARNING Make sure you disconnect the device from the main...

Page 110: ...se insert again 6 5 Cleaning the device Cleaning the surface CAUTION Make absolutely sure that no water penetrates the device during cleaning The front panels and doors are washable Use a sponge or cloth dampened by water containing washing up liquid In particular the surface in the display area must only be cleaned with a gentle pressure to prevent damage to the thin foil Make sure that no water ...

Page 111: ...y with brief setting approx 1 s since latching of the associated fault message otherwise remains ineffective If a new message appears the record stored in the logbook is shifted back one place in the memory There are a total of 32 memory locations available If all 32 memory locations are already occupied when another record arrives no 33 the oldest one no 1 is overwritten A power failure deletes a...

Page 112: ...e display and are signaled externally if a corresponding relay has been configured using function 71 Table 6 2 Causes of maintenance requests No Signal Possible cause Remedy Calibration gas was changed W1 Q Calibration tolerance exceeded Incorrect setpoint entered Repeat calibration W4 Q Set clock The device was switched off New input of date and time W6 Q Temperature of LC display too high or too...

Page 113: ...tics by the servicing personnel S4 External fault message External signal Check function 72 must be configured accordingly Temperature control of sensor faulty S5 Q Temperature of O2 sensor too high or too low Sample gas flow is too high 125 ml min Set flow to 125 ml min S8 Q Signal of pressure sensor outside tolerance Flow resistance too large in the sample gas outlet line Reduce flow resistance ...

Page 114: ... surges or variations in the sample gas outlet Route the sample gas outlet separate from the outlets from other analyzers and or install a damping unit in the sample gas outlet The flow resistance must be kept as small as possible Dimension the flow resistance such that the sample gas pressure does not exceed 100 hPa rel Occurrence of sporadic spikes See also function 76 inform service department ...

Page 115: ...ibility According to EN 61326 and NAMUR recommendation NE 21 Degree of protection IP 20 according to EN 60529 Electrical safety According to EN 61010 1 overvoltage category II Position of use analyzer Front panel vertical Dimensions analyzer See Section Dimensional drawing Weight analyzer Approx 11 kg Table 7 2 Technical data power supply Power supply Power supply see rating plate 100 to 120 V AC ...

Page 116: ...mple gas flow through the O2 sensor 125 ml min 7 5 l h Sample gas temperature 0 to 50 C Sample gas moisture content 1 RH 1 Table 7 4 Technical data time response Time response Warmup time At room temperature 30 min 2 Delayed display t90 High pressure version Low pressure version When changing from N2 to air 5 min 10 sec Damping electronic delay 0 to 100 s can be parameterized Dead time time for ga...

Page 117: ...ation with constant influencing variables Table 7 7 Technical data influencing variables Influencing variables 3 Ambient temperature 2 10 K referred to the respective span Sample gas pressure With pressure compensation switched on 0 2 of respective span 1 change in pressure Auxiliary gases Catalytically inactive sensor approx 1 vpm O2 with an auxiliary gas concentration of 10 vpm H2 CO and CH4 exh...

Page 118: ...hing Serial interface RS 485 Options Supplementary electronics with 8 additional binary inputs and 8 additional relay outputs e g for triggering automatic calibration supplementary electronics for PROFIBUS PA and PROFIBUS DP Table 7 9 Technical data climatic conditions Climatic conditions Permissible ambient temperature Storage and transport 40 to 70 C operation 5 to 45 C Permissible humidity 90 R...

Page 119: ...OXYMAT 64 Operating Instructions 06 2008 A5E00880383 03 117 Dimension drawings and charts 8 8 1 Dimension drawings OXYMAT 64 Figure 8 1 Dimensions for preparing installation front view and plan view ...

Page 120: ...Dimension drawings and charts 8 1 Dimension drawings OXYMAT 64 118 Operating Instructions 06 2008 A5E00880383 03 0 Figure 8 2 Dimensions for preparing installation view from left and rear view ...

Page 121: ...ithout internal pressure regulator 2000 hPa regulated With internal pressure regulator 3000 to 6000 hPa 2 Sample gas outlet sample gas must flow off free of dynamic pressure 3 Pressure regulator ordered version 4 O2 sensor 5 Pressure sensor 6 Bypass restrictor 7 Pressure switch 8 Flow metering tube 9 Purging gas connection 10 Restrictor 11 Restrictor 1 The OXYMAT 64 must only be purged with air ot...

Page 122: ...08 A5E00880383 03 Low pressure version 3 2 VHQVRU Figure 8 4 Gas path for low pressure version 1 Sample gas inlet flow 125 ml min 7 5 l h 2 Sample gas outlet sample gas flows off free of dynamic pressure 3 O2 sensor 4 Flow metering tube 5 Pressure switch 6 Pressure sensor 7 Outlet restrictor ...

Page 123: ...ange The spare parts list corresponds to the technical status of April 2007 2 0 7 3 0 3 6 1 8 9 9 ื YSP 2 0DGH LQ UDQFH SIEMENS Figure 9 1 Example of type nameplate for OXYMAT 64 Ordering example The order for spare parts must contain Table 9 1 Information for ordering of spare part Device name OXYMAT 64 Order no of the device 7MB2041 1BA10 1AA0 Serial number N1UD00001 Quantity 1 Designation of th...

Page 124: ...st for sensor module No Description Order no Remarks 1 Pressure regulator as retrofitting set A5E01008972 Incl capillary tube screwed glands 2 Flow metering tube A5E01061561 Incl brackets Sensor module with catalytically active cell A5E01058837 3 With catalytically inactive cell A5E01058838 Complete with sensor and sensor electronics pre calibrated 4 Pressure switch as spare part A5E01007406 ...

Page 125: ...omment 1 Front panel A5E00280516 Complete Front panel A5E01061562 Without LC display 2 Adapter board LCD keyboard C79451 A3474 B605 3 LC display W75025 B5001 B1 4 Plug in filter W75041 E5602 K2 G type fuse T630L250V W79054 L1010 T630 200 V 240 V 0 63 A 5 G type fuse T1L250 W79054 L1011 T100 100 V 120 V 1 A C79451 A3480 D511 Relay A5E00057307 PROFIBUS PA A5E00057312 PROFIBUS DP 6 Optional board A5E...

Page 126: ... Motherboard and firmware English A5E01061565 Motherboard and firmware French A5E01061566 Motherboard and firmware Spanish 8 Motherboard A5E01061567 Motherboard and firmware Italian 9 4 Service 9 4 1 General information If servicing is necessary you can obtain the required information such as contact person and address from your responsible partner or from the following Internet address See also C...

Page 127: ...s sponge rubber or similar If you use wood shavings the stuffed layer on each side should be at least 15 cm thick For overseas shipping shrinkwrap the devices in an additional PE foil which is at least 0 2 mm thick with a desiccant e g silica gel enclosed For this type of shipping also line the inside of the transport container with a double layer of tar paper If you return your device for repair ...

Page 128: ...o Serial number Description of returned part Fault indication Process data at measuring point Operating temperature Operating pressure Composition of sample gas Operating duration operating date Confirmation It is confirmed that the returned part has not come into contact with highly toxic or radioactive gases or substances or been exposed to radioactive or high energy radiation Location Company d...

Page 129: ... securely apply a clear plastic envelope with the completely filled in and signed decontamination declaration including the shipping papers outside on the packaging Customer name Administrator Delivery address Phone Fax E mail Device name MLFB No Serial number Description of returned part Medium Concentration Cleaned using Operating duration operating date Confirmation It is herewith confirmed tha...

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Page 131: ...nder Europäischer Richtlinien überein 2004 108 EC EMC Council Directive on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89 336 EEC Richtlinie des Rates zur Angleichung der Rechtsvorschriften der Mitgliedstaaten über die elektromagnetische Verträglichkeit und zur Aufhebung der Richtlinie 89 336 EWG 73 23 EEC LVD Council Directi...

Page 132: ...Produktdokumentation sind zu beachten Annex A to the EC Declaration of Conformity Anhang A zur EG Konformitätserklärung No A5E 01 Product description Produktbezeichnung Gas analyzer Gasanalysegerät OXYMAT 64E Type Typ 7MB 2041 xxxx xAAx Conformity to the Directives indicated on page 1 is assured through the application of the following standards depending on versions Die Konformität mit den auf Bl...

Page 133: ...ranges Define measuring ranges Parameters code 2 50 51 52 53 54 55 56 58 59 60 Electric time constant Limits On off functions Status signals Graphic measured value display Measured value display LCD contrast Date time Measuring point switchover Logbook settings Configuration code 2 70 71 72 73 74 75 76 77 78 79 80 81 82 83 85 86 87 90 91 99 Analog output Relay assignment Binary inputs ELAN configu...

Page 134: ...es are commonly referred to as ESD devices This is also the international abbreviation for such devices ESD modules are identified by the following symbol CAUTION ESD devices can be destroyed by voltages well below the threshold of human perception These static voltages develop when you touch a component or electrical connection of a device without having drained the static charges present on your...

Page 135: ...Q N9 Figure A 1 Electrostatic voltages on an operator Basic protective measures against electrostatic discharge Ensure good equipotential bonding When handling electrostatic sensitive devices ensure that your body the workplace and packaging are grounded This prevents electrostatic charge Avoid direct contact As a general rule only touch electrostatic sensitive devices when this is unavoidable e g...

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Page 137: ...e centimeters CO Carbon monoxide CO2 Carbon dioxide COM port Communications connection serial port of a computer CS2 Carbon bisulfide DC Direct current DP Distributed I O in association with PROFIBUS EEPROM Electrically erasable programmable read only memory ELAN Economic local area network EPROM Erasable programmable read only memory EMC Electromagnetic compatibility FKM Fluorocaoutchouc a plasti...

Page 138: ...e sensor kPa Kilopascal kΩ Kiloohms l Liters LCD Liquid crystal display LED Light emitting diode mA Milliamperes TLV Threshold limit value maximum workplace concentration max Maximum MB Megabyte mba MBA Start of measuring range mbar Millibars mbe MBE End of measuring range mg Milligrams min Minute ml Milliliters MLFB Machine readable product code mm Millimeters mm Square millimeters MPa Megapascal...

Page 139: ...e e g Teflon QAL Quality assurance level RAM Random access memory ROM Read only memory s Seconds SO2 Sulfur dioxide SUB D Subminiature D shaped connector TCP IP Transmission Control Protocol Internet Protocol a reference model for communication on the Internet USB Universal Serial Bus serial bus system for connecting external devices to a computer V Volts VGA Video Graphics Array a graphics card s...

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Page 141: ...tic deviations in measurements as far as necessary for the required application Calibration gas Gas used to carry out a calibration Code String for enabling protected system areas or device functions Code level Area of protected functions or states which are enabled after entering a certain code Coded display mode Operating mode in which the measured value is displayed and the device is protected ...

Page 142: ... check is active Dialog language Language in which communication between the user and device takes place Display Visible information on states and values Display unit Device component which outputs shows device information and visualizes the communication via the control panel Factory functions Function for device maintenance This function is protected by the highest code level and is only accessi...

Page 143: ...eek hysteros behind Identifies the continuation of an effect following the disappearance of its cause Hysteresis occurs in many control processes also in our gas analyzers during the delayed switching over from one measuring range to another Input field One or multiple line area in which the user can enter alphanumeric content or edit delete or replace exiting text contained therein Interfering ga...

Page 144: ...f the displayed information in Coded display mode and Decoded display mode The following are displayed for example measured value status line with status messages footer measuring ranges components etc Measuring point Location where a measured value is recorded Measuring point relay Relay to which a measuring point is allocated Measuring range The measuring range is the range of values for a measu...

Page 145: ...ting state Common term for all states in which the device can be found during operation e g measure fault calibration Operation level Certain operating area menus and functions which is either freely accessible or protected by a code Operator control mode Operating mode in which the device is partially or entirely decoded and the functional check is activated The device is parameterized in this mo...

Page 146: ...f standard features contained in the device at the time of delivery without optional extensions Status message Selectable output of various messages in the status line of the measured value display Subfunction Independent functional unit within a function Submenu Menu which is listed under a higher order menu item Time constant System parameter which determines the way a system relevant variable c...

Page 147: ... Smallest possible point of a measuring range usually the start of scale value Zirconium dioxide ZrO2 Zirconium dioxide ZrO2 as the sensor material is a high performance ceramic belonging to the group of oxide ceramics and is therefore a non metallic inorganic material It is non magnetic extremely resistant to acids and alkalis and exhibits a high resistance to chemical thermal and mechanical infl...

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Page 149: ...OXYMAT 64 Operating Instructions 06 2008 A5E00880383 03 147 Index E ESD guidelines 123 G Guidelines ESD guidelines 123 ...

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Page 152: ...er for measurements of trace oxygen 7MB2041 Operating Instructions June 2008 www siemens com processanalytics Subject to change without prior notice A5E00880383 03 Siemens AG 2008 Siemens AG Industry Automation IA Sensors and Communication Process Analytics 76181 KARLSRUHE GERMANY Continuous gas analysis A5E00880383 4 019169 158404 A5E00880383 ...

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