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Michell Instruments XZR-400-BM, User Manual

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Michell Instruments XZR-400-BM User Manual Download Page 12

XZR400 Series User’s Manual

2

 

 

 

97472 Issue 3, August 2018

INTRODUCTION

The XZR400 Series includes the following front panel mounted items: 

•  Liquid crystal touchscreen display 

•  Flow adjustment valve

•  Bypass control valve

1.1 Operating 

Principle

The analyzer operates on the zirconium oxide (zirconia) principle. 

A sample of the gas to be measured is connected to the inlet port of the analyzer.  The 

sample gas 

fl

 ows through stainless steel pipework into the oven where the zirconia 

oxygen sensor is located. 

The sample 

fl

 ow should be set to between 1 and 3 l/hr using the electronic 

fl

 owmeter, 

and sample and bypass needle valves on the front of the unit. 

The sample gas circulates in the oven, which is heated to temperatures above 600°C, 

necessary for the zirconia oxygen sensor to operate properly. 

The Michell Metallic Sealed Reference Sensor (MSRS) generates a signal that is 

proportional to the logarithm of the ratio of the oxygen partial pressure in the sample 

to the oxygen partial pressure contained on the sealed reference side of the MSRS. 

The analyzer provides the O

2

 concentration on the screen and via the 4-20 mA output 

(optional on XZR400A3). 

The optional Easidew Transmitter utilizes ceramic impeadance technology and further 

details can be found on our website.

Summary of Contents for XZR-400-BM

Page 1: ...XZR400 Series Oxygen Analyzers User s Manual 97472 Issue 3 August 2018 ...

Page 2: ...information when contacting Michell Instruments for service purposes Instrument Code Serial Number Invoice Date Location of Instrument Tag No Instrument Code Serial Number Invoice Date Location of Instrument Tag No Instrument Code Serial Number Invoice Date Location of Instrument Tag No ...

Page 3: ...nts Ltd and may not be copied or otherwise reproduced communicated in any way to third parties nor stored in any Data Processing System without the express written authorization of Michell Instruments Ltd For Michell Instruments contact information please go to www michell com ...

Page 4: ...Electrical Requirements 11 2 7 3 Gas Requirements 11 2 7 4 Sampling System 11 2 8 Connections to the XZR400A1 12 2 8 1 Front Panel 12 2 8 2 Back Panel 12 2 8 3 Gas Inlet Outlet and Bypass Gas Connections 13 2 8 4 Electrical Terminal Block 14 2 8 5 D Sub DE9 plug 14 2 8 6 Pluggable 8 pins electrical connector 14 2 8 7 Sample Path 15 2 8 7 1 Signal Processing Path 17 2 9 Connections to the XZR400A2 ...

Page 5: ...uration 38 3 5 2 Changing the Access Code 39 3 6 The Main Expert Menu 41 3 6 1 Analog 1 42 3 6 2 Alarms 43 3 6 3 Auto Adjustment Optional 45 3 6 4 System 49 3 6 5 Total Pressure Correction Optional 51 3 6 6 COMM 52 3 6 6 1 RS232 52 3 6 6 2 RS485 52 3 6 7 Flow 53 4 CALIBRATION 54 4 1 Definitions 55 4 1 1 ADJUSTMENT Calibration Screen Pages 3 2 3 2 1 3 2 2 3 2 3 56 4 1 2 Diagnosis of the MSRS Sensor...

Page 6: ... Figure 23 Connections Side Panel XZR400A3 24 Figure 24 Electrical Terminal Block XZR400A3 25 Figure 25 Connections Front Panel XZR400A4 26 Figure 26 Electrical Terminal Block XZR400A4 27 Figure 27 D Sub DE9 Plug XZR400A4 27 Figure 28 Power Input Socket 28 Figure 29 Start up Screen 34 Figure 30 Oven Temperature Screen 34 Figure 31 Sample Flow Adjustment 35 Figure 32 Main Screen 36 Figure 33 Contro...

Page 7: ...endix D Extended Operating Range Optional 77 Appendix E Process Pressure Correction Optional 79 E 1 Process Pressure Correction Input Connections 79 Appendix F Flow Fault Contact Optional 81 F 1 Flow Fault Output Connections 81 Appendix G Commutable Scale Auto Ranging 83 Appendix H Optional moisture sensor 85 Appendix I Quality Recycling Warranty Information 88 Appendix J Analyzer Return Document ...

Page 8: ...ty DO NOT permit pressures exceeding 2 barg 29 psig to be applied to the instrument This maximum pressure applies to all versions of the instrument Temperature Safety During operation some parts of the instrument can be at very high temperatures Toxic Materials The use of hazardous materials in the construction of this instrument has been minimized During normal operation it is not possible for th...

Page 9: ... Ampere barg pressure unit 100 kP or 0 987 atm gauge C degrees Celsius F degrees Fahrenheit l h liters per hour l min liters per minute mA milliampere min minute ppm parts per million psig pound s per square inch gauge RS232 Modbus RTU serial data transmission standard RS485 Modbus RTU serial data transmission standard T temperature V Volts ...

Page 10: ... hazard warning symbol appears in the following sections it is used to indicate areas where potentially hazardous operations need to be carried out Where this symbol appears in the following sections it is used to indicate areas of potential risk of electrical shock Where this hot surface warning appears in the following sections it is used to indicate areas where the surface may potentially be da...

Page 11: ...tally be introduced to the sample This cleaning service must be ordered at the time of purchase as special components are required Extended operating ranges of 0 to 30 or 0 to 50 O2 can be supplied but will require the analyzer to be cleaned for oxygen service Typical applications include Gas purity Inerting or blanketing specific atmospheres Combustion pre mixing analysis Respiratory or medical g...

Page 12: ...o between 1 and 3 l hr using the electronic flowmeter and sample and bypass needle valves on the front of the unit The sample gas circulates in the oven which is heated to temperatures above 600 C necessary for the zirconia oxygen sensor to operate properly The Michell Metallic Sealed Reference Sensor MSRS generates a signal that is proportional to the logarithm of the ratio of the oxygen partial ...

Page 13: ...ium oxide produces a voltage between the two electrodes the magnitude of which is based on the oxygen partial pressure differential created by the reference and sample gas T Zirconia PP ref P P meas E Figure 1 Zirconia Sensor Operating Principle Within the oven the zirconium oxide MSRS is maintained at a temperature of 634 C The MSRS generates a signal that is proportional to the natural logarithm...

Page 14: ... and its oxide sealed in the zirconium sheath This allows the sensor operation to be irrespective of the ambient air quality and negates the requirement for a zero calibration gas Figure 3 MSRS Dimensions Temperature is a major component in the Nernst equation and can affect the accuracy of some sensors Placing the thermocouple in contact with the small sensor body helps provide a very accurate te...

Page 15: ...erence to the MSRS sensor refers to this complete assembly which is considered solid state and non user serviceable 4 5 6 7 1 2 3 Figure 5 XZR400 Series MSRS Assembly Item Description Wiring 1 MSRS 2 S type thermocouple 3 4 hole alumina tube 4 Stainless steel connector 5 O2 reference wire blue wire 6 Common O2 meas TC white wire 7 Positive thermocouple TC orange wire Table 1 XZR400 Series MSRS Ass...

Page 16: ...l Test result sheet 2 Remove the documentation and packing material 3 Remove the analyzer and power cable 2 2 Preparation Carefully read the following guidelines before installing the analyzer If you are not sure about the installation conditions and other important factors please contact a Michell Instruments Application Engineer or a Michell Instruments representative prior to the installation T...

Page 17: ...efully following the recommendations above Once installed into the rack there should be at least 2U clearance spaces from other equipment above and below the instrument To install follow the steps below 1 If necessary remove any covers from the rack cabinet to gain access to the rear and side 2 Slide the instrument into the rack and support its weight while the four fixing screws are inserted 3 En...

Page 18: ... 4 Dimensions XZR400A2 274mm 10 79 260mm 10 24 220mm 8 66 180mm 7 09 152mm 5 98 109mm 4 29 172mm 6 77 110mm 4 33 30mm 1 18 30mm 1 18 30mm 1 18 201mm 7 91 236mm 9 29 305mm 12 01 42mm 30mm FLOW ADJUSTMENT BYPASS CONTROL GAS IN GAS OUT 1 18 1 65 Figure 7 Dimensions XZR400A2 ...

Page 19: ...Pump Option 2 4 1 Installing the XZR400A2 Choose your installation site carefully following the recommendations above Follow the steps below 1 Identify a clean and flat surface on a wall or other vertical location e g an instrument panel that is suitable to hold the analyzer 2 Prepare the mounting site by drilling 4 holes in appropriate locations corresponding to the dimension and location of the ...

Page 20: ...2 Issue 3 August 2018 INSTALLATION 2 5 Dimensions XZR400A3 220mm 8 6 290mm 11 4 260mm 10 2 203mm 7 9 236mm 9 3 Figure 9 Dimensions XZR400A3 2 6 Dimensions XZR400A4 420mm 16 5 450mm 17 7 300mm 11 8 350mm 13 8 Figure 10 Dimensions XZR400A4 ...

Page 21: ...stem The gas must be clean dry and oil mist free with the pressure up to a maximum of 2 barg 29 psig and with particle size 3 μm The analyzer is not suitable for samples with hydrocarbons present These will combust on the cell and consume oxygen molecules 2 7 4 Sampling System Depending upon the application a sampling system may be used to cope with high pressure samples samples with contamination...

Page 22: ...Inlet fitting for gas sample to be analyzed B Outlet fitting for gas sample output bypass C Outlet fitting for gas sample to be analyzed D Manufacturer s plate E Mains socket 90 132 187 264 V AC 47 63 Hz F On Off button G Housing for analyzer s 2 x electrical protection fuses 250 V AC 6 3 A H Housing for solenoid valve s electrical protection fuses 250 V AC 3 15 A Only fitted on the rack with auto...

Page 23: ...erwise the total pressure adjustment option is required The measurement of hazardous gas samples require the analyzer s outlet to be outside the analysis area and must be in accordance with local regulations Sensor flow adjustment Sensor Electronic flow meter Gas outlet bypass sample Analyzed gas outlet Bypass flow adjustment Inlet for gas to be analyzed Figure 13 Gas Circuit Diagram for Rack Vers...

Page 24: ...e configured by setting the parameters 8 9 Alarm No 2 dry contact terminal 250 V AC 2A or 30 V DC 2A resistive load Function mode positive normal and hysteresis can be configured by setting the parameters 10 11 Dry contact terminal for flow alarm option 250 V AC 2 A or 30 V DC 2 A on resistive load 12 4 20 mA input Option process pressure correction input 13 0V 4 20 mA input Option process pressur...

Page 25: ...al sample path consists of 2 flow control valves sensor flow and by pass flow 1 sealing head 1 outlet plate 1 oven tube 1 electronic flow meter 1 MSRS sensor 3 Swagelok 6mm stainless steel bulkhead unions 1 gas inlet and 2 gas outlets on the rear panel XZR400A1 Sensor flow adjustment valve O2 sensor By pass flow adjustment valve Barometric pressure sensor Ɨ bulkhead union Ɨ bulkhead union Ɨ bulkhe...

Page 26: ...nel 1 sampling pump 3 l min 2 electrovalves XZR400A1 Sensor flow adjustment valve O2 sensor By pass flow adjustment valve Barometric pressure sensor Ɨ bulkhead union Ɨ bulkhead union Ɨ bulkhead union Sampling gas inlet Electronic flowmeter 0 12 l h Sampling gas outlet Sampling gas outlet P N O Solenoid valve N C Solenoid valve Sampling pump Figure 17 Sample Path with Pump Fitted XZR400A1 ...

Page 27: ...bient temperature corresponding to the thermocouple junction temperature O2 concentration MSRS sensor voltage Barometric pressure standard or process pressure optional Flow passing through the sensor Analog Outputs 2 x 4 20 mA analog outputs proportional to user defined scales The wiring connector is on the rear side Standard Alarms General fault alarm 2 concentration alarms with user configurable...

Page 28: ... for fine adjustment of the gas flow C Multi turn knurled knob for basic adjustment of the gas flow bypass D Removable plate for access to electrical terminal block and mains fuse E Three cable glands are provided for the electrical connections F Optional D Sub DE9 male plug RS485 or RS232 port G Inlet fitting for the gas sample to be analyzed for 6mm tube H Outlet fitting for the analyzed gas sam...

Page 29: ... used which guarantees perfect sealing and easy removal The evacuation of the analyzed sample must be carried out at atmospheric pressure otherwise the total pressure adjustment option is required The measurement of hazardous gas samples require the analyzer s outlet to be outside the analysis area and must be in accordance with local regulations Sensor flow adjustment Bypass flow adjustment Inlet...

Page 30: ...load Direction of action 10 11 Threshold alarm No 1 dry contact terminal 250 V AC 2 A or 30 V DC 2 A on resistive load Function mode positive normal and hysteresis can be configured by setting the parameters 12 Threshold alarm No 1 dry contact terminal 250 V AC 2 A or 30 V DC 2 A on resistive load Function mode positive normal and hysteresis can be configured by setting the parameters 13 Shared co...

Page 31: ...of a gas inlet head and a outlet plate 3 Viton O rings ensure the sealing of this device 2 for the inlet and 1 for the outlet The internal sample path consists of 2 flow control valves sensor flow and by pass flow 1 sealing head 1 outlet plate 1 oven tube 1 electronic flow meter 1 MSRS sensor 2 Swagelok 6mm stainless steel bulkhead unions gases inlet and outlet under the analyzer XZR400A2 Sensor f...

Page 32: ...ed scale The connection is inside the enclosure behind the removable panel on the front of the unit An optional second 4 20 mA output is available 2 9 7 Alarm Outputs Standard Alarms general fault alarm 2 concentration alarms with user configurable high low thresholds and hysteresis Two alarm relays are provided They are connected to the instrument via the terminal block inside the XZR400A2 Analyz...

Page 33: ... features are shown below A B C D E Item Description A Carrying handle B Multi turn knurled knob for basic adjustment of the gas flow bypass C Graphic touch screen displays measurement and menus D Multi turn knurled knob for fine adjustment of the gas flow E Access plate to the MSRS sensor Figure 22 Connections Front Panel XZR400A3 ...

Page 34: ...N OFF button B Mains socket 90 132 187 264 VA automatic range switching 47 63 Hz C Inlet fitting for the gas sample to be analyzed for 6mm tube D Manufacturer s plate E Optional Sub D DE9 male connector RS232 or RS485 output F Optional Sub D DA15 male connector G Outlet fitting for the gas sample to be analyzed for 6mm tube Figure 23 Connections Side Panel XZR400A3 ...

Page 35: ... alarm for flow rate setting 250 V AC 30 V DC or 2 A 2 A resistive load Direction of action positive normal 10 11 Optional General alarm dry contact terminal 250 V AC 2 A or 30 V DC 2 A on resistive load Direction of action positive normal 12 Optional Threshold alarm No 1 dry contact terminal 250 V AC 2 A or 30 V DC 2 A on resistive load Function mode positive normal and hysteresis can be configur...

Page 36: ...justment of the gas flow C Multi turn knurled knob for basic adjustment of the gas flow bypass D Mains socket 90 264 V AC 47 63 Hz On Off button Analyzer housing for 2 electrical protection fuses 250 V AC T2A or 250 V AC T6 3A E D Sub DE9 female connector F Manufacturer s plate G Inlet fitting for the gas sample to be analyzed for 6mm tube H Outlet fitting for the analyzed gas sample for 6mm tube ...

Page 37: ...9 Optional 4 20 mA output 1 positive 10 Optional 4 20 mA output 1 ground 11 Optional 4 20 mA output 2 positive 12 Optional 4 20 mA output 2 ground 13 15 Not connected Figure 26 Electrical Terminal Block XZR400A4 2 11 2 D Sub DE9 Type Plug 5 9 6 1 Pin No Function 1 2 General alarm contact 3 Shared contact for Alarm No 1 and Alarm No 2 4 Alarm No 1 contact terminal 5 Alarm No 2 contact terminal 6 4 ...

Page 38: ...r input socket as shown below The method of connection is as follows POWER INPUT Socket IEC connector Figure 28 Power Input Socket 1 Ensure that both ends of the power cable are potential free i e not connected to an AC power supply 2 Check that the l 0 switch on the power supply connector is switched to 0 3 Push the IEC connector firmly into the power input socket ...

Page 39: ...not live and that it is safe to handle them The output connection can be wired directly to the terminal block on the back panel of the analyzer Use screened cable The method of connection is as follows Always use screened cable to connect the output to the external device 1 Strip back the wire for the positive output lead exposing approximately 6mm 0 25 wire and clamp into the screw port labelled ...

Page 40: ...arms The direction of the activation N O or N C as well as the hysteresis can be configured The output contacts are normally open and potential free The relay switching capability is 10 W max up to 100 V or up to 0 5 A The method of connection is as follows Always use screened cable to connect the output to the external device Alarm 1 1 Strip back the two wires for the alarm 1 output leads exposin...

Page 41: ...nlet port must be straight The method of connecting to the gas inlet and gas outlet ports is as follows 1 Connect the gas source from the sample system to the Swagelok fitting at the inlet port on the instrument using 1 8 stainless steel tubing Tighten the fitting as much as possible by hand and tighten again with a 7 16 flat wrench approximately 1 turns 2 Connect the gas outlet port in a similar ...

Page 42: ...operate with a gas flow of 2 l h 1 l h NOTE For best results ensure that the sampling system is as close as possible to the XZR400 Series Analyzer For all applications the sample gas is taken into the instrument via the gas inlet port located on the bottom panel of the analyzer from where it passes into an oven chamber The gas flow rate is then measured on the outlet side of the sample chamber pri...

Page 43: ...on off switch Portable and Rack Versions Switch the built in on off switch to the ON position Power up the system Observe all normal safety precautions during the powering up procedure Never allow sample gas to enter the analyzer when it is switched off In the case of power breakdown for more than 1 hour it is necessary to purge the analyzer with Nitrogen or instrument air dew point 40 This will p...

Page 44: ...ired language French 1 Software version V0 1 7 ver English Figure 29 Start up Screen Wait about 15 minutes until the oven temperature reaches 634 C indicated by the oven temperature line The low temperature alarm is displayed digitally throughout the rise in oven temperature the general alarm contact is activated NOTE A flow greater than 3 5 l h prevents the correct rise in oven temperature Oven F...

Page 45: ... gas sample flow by operating the by pass valve B and then the end flow valve A to obtain a 2 1 l h flow rate C NOTE For optional measurement do not fully close the by pass valve A B A B Adjustment View Pump NO 3 20 09 43 O2 19 3 0 5 2 3 5 U Flow l h C Figure 31 Sample Flow Adjustment ...

Page 46: ...an adjustment performed after a minimum of 3 hours of operation However upon receipt of the analyzer this adjustment will have been performed in the factory as shown in the manufacturing check and adjustment sheet B Pump ON OFF button available on A1 or A4 models The PUMP signal flashes when the pump is operating C Screen number D Touch sensitive View area E Message display area F Sample gas flow ...

Page 47: ...e thermocouple Sensor Voltage Measurement in mV of the voltage supplied by the measuring cell which must be between 300 and 250 mV A value greater than the upper limit generates a MSRS fault alarm Atm pressure The pressure at the analyzer outlet must be near atmospheric pressure between 800 and 1750 mbar A value above 1200 mbar and under 800 mbar generates an oxygen measurement error NOTE If the p...

Page 48: ...fault access code is 0 To correct an entry error press Touch the OK area Adjustment CO Adjustment Maintenance 3 1 680 3C 30 7C 122 76 mV 1036 mBar 2 5 L h 0 00 Oven Room temp Sensor Voltage Atm pressure Flow Control parameters O2 27 35 ppm Access code Cancel OK 7 8 9 4 5 6 1 0 2 3 0___ Min 0 Max 9999 Figure 34 Main Menu Access Screen If the access code is incorrect the screen goes back to Screen 3...

Page 49: ... of Screen 3 The Control Parameters Screen is displayed Adjustment CO Adjustment Maintenance 3 1 634 0ºC 30 7ºC 122 76 mV 1036 mBar 2 5 L h 0 00 Oven Room temp Sensor Voltage Atm pressure Flow Control parameters O2 27 35 ppm Touch the Maintenance area Flow Analog output Alarms Auto adjustment System Comm Pressure Main menu 5 Touch the System area Hour Misc System Tue 18 02 2014 15 48 54 5 5 Touch ...

Page 50: ...etpoint Language New access code English Misc Touch the New Access code area Hour Misc System 5 5 634ºC Setpoint English New access code English Access code Cancel OK 7 8 9 4 5 6 1 0 2 3 0___ Min 0 Max 9999 Enter the new access code To correct an entry error press the area Press the OK area ...

Page 51: ... adjustment Configures the automatic cyclical adjustment adjust of the analyzer Optional 3 6 3 System Configures the analyzer timestamp function oven temperature menu display language Expert access code and RS output configuration ModBus address with RS485 or frame period with RS232 3 6 4 Pressure Configures the process pressure correction Optional for all models 3 6 5 Returns to the Measurement D...

Page 52: ...enerated when there is a general fault if oven temperature is lower than 30 C or higher than 50 C from the setpoint thermocouple rupture flow less than 0 5 and greater than 3 5 l h internal wiring fault Start of scale Configuring the concentration for the low scale and the measurement unit Select a value and a unit corresponding to the concentration to be measured Unit Configuration of the unit in...

Page 53: ...r when alarm set off is configured by the user Disabled Sets the current behaviour for alarms 1 and 2 and that of the General fault exclusively in normal mode of operation excluding adjustment No the alarms are operational the corresponding alarm will be activated when an alarm is triggered and or a fault occurs This is the standard choice for the analyzer in normal operation Yes no alarms will be...

Page 54: ...en the measurement value is equal or below the threshold set for the Alarm threshold line The alarm must be disabled when the measurement value is above the threshold set for the Alarm threshold line High the alarm will be activated when the measurement value is equal to or above the threshold set for the Alarm threshold line The alarm must be disabled when the measurement value is below the thres...

Page 55: ... used to launch the sequence Hardware configuration Peripheral equipment must be installed as indicated Parameter setting for auto adjust The Auto Adjust Screen sets the array of parameters used for the analyzer s auto adjust Touch the area to select it and change it Enter the new numeric value on the virtual keypad Click OK to confirm or Cancel to discard the changes Main Level Auto adjustment 5 ...

Page 56: ...ernal PLC controlling the launch of the auto adjust sequence as opposed to the automatic launch of the Inter Start and Inter Adjust commands No pressing the external button connected to terminals 5 6 of the D Sub DA15 connector or the 8 pluggable pin connector will not allow the launch of the auto adjust sequence Yes pressing the external button connected to terminals 5 6 of the D Sub DA15 connect...

Page 57: ...he value of adjustment and control gases Main Auto adjustment 5 4 1 Standard gas Level Unit Control gas Level Unit 5 00 5 00 Process Level Area Function Standard gas Level Defines the value of adjustment gas Unit Defines the unit of adjustment gas Control gas Level Defines the value of control gas Unit Defines the unit of control gas ...

Page 58: ...s are locked to the value measured before the adjustment sequence start until the end purge Alarms Concerns the analyzer general fault alarm as well as Alarms 1 and 2 No alarms will remain operational during the adjust sequence start until the end of the purge Yes alarms will be disabled Ctrl Adj Pressure Gas adjustment and control gas bottle pressure checking No any pressure control on bottles of...

Page 59: ...ly at the scheduled time T0 adj and resumes cyclically after the adjustment period Example interval adjustment 2h and T0 14h If the operator pushes the Start area T0 at 17 00 self adjustment will be disabled until the next day to 14 00 It will then be started at 16 00 18 00 and 20 00 To stop the automatic sequence touch the Enable area 3 6 4 System This screen is used to update the analyzer s real...

Page 60: ...cell Language Touch the Language area In the opened window change the displayed language The new language will be applied at the next start NOTE the language selection is proposed if this choice was not selected at the analyzer start New access code Modifies the expert level code By default the expert code is 0 Warning If the access code is forgotten the equipment will need to be returned to the f...

Page 61: ...ut on pins 12 and 13 of the screw terminal Defective wiring electrical supply of the total pressure sensor or no connection of the total pressure sensor s 4 20 mA signal to the analyzer generates a general fault alarm and the display of a pressure fault message This is not run if the sensor outputs a 0 5 V signal type In case of a pressure fault the O2 concentration will be displayed taking in acc...

Page 62: ... 6 2 RS485 Only available for analyzers equipped with this output Comm Screen The COM RS485 screen sets the RS485 output parameters Comm 5 7 Speed Data Parity Stop Modbus address 1 9600 bps 8 bits none 1 RS485 Figure 42 Comm Screen Area Function RS485 Indications of the RS485 interface connection parameters that cannot be modified Speed 9600 bauds Number of bits Parity None Stop 1 ModBus address T...

Page 63: ... analyzed Use this function to optimize the flow measurement depending on the type of gas used Flow correction 1 Air O2 N2 AR NO 5 8 2 He 3 CO2 NO2 N20 Figure 43 Flow Correction Screen Area Function Flow correction Selects the adjustment factor number 1 2 or 3 depending on the gas analyzed For this choice take the main gas into account Returns to the Main Menu Screen ...

Page 64: ... as this is too close to the internal reference It is possible to control the calibration efficiency with a second gas rated at a different O2 value A single cylinder with O2 at a known concentration is required for calibration A second cylinder with a different concentration can be used to verify calibration Control Gas BYPASS GAS OUTLET SENSOR GAS OUTLET GAS INLET ATTACH HOSE TO GAS INLET PORT C...

Page 65: ... the adjustment gas eliminates the process gas out of the internal sample path The quality of calibration will far be greater if the process gas is fully cleared away A longer period is necessary when the adjustment gas value is low and or when the difference between the process gas and the adjustment gas is large Calibration with level oxygen gas requires approximately 5 minutes Calibration with ...

Page 66: ...age 3 2 Ensure that the values on the Screen 3 2 are correct with respect to the calibration gas cylinder or certificate If they are correct press the Adjustment button this will take you to Screen 3 2 2 If the values do not match press the Modify key this will take you to Screen 3 2 1 MODIF Incorrect Values 3 2 1 Standard gas Level Unit Control gas Level Unit Adjustment Level Process 8 02 2 00 Fi...

Page 67: ... 2 ADJUST Correct Values Cancel VALID 4 20mA blocked 3 2 2 8 02 12 4 2 5 L h Standard gas Concentration O2 Flow Adjustment insert adjustment gas and VALID Figure 47 Screen Page 3 2 2 Press the 4 20 mA key to select whether the output is frozen blocked or will follow the gas concentration active Open the gas cylinder to give a flow rate of 2 l h 1 l h Wait for approximately 5 minutes for the concen...

Page 68: ...w Adjustment Figure 48 Screen Page 3 2 3 During the calibration sequence it is possible to Force calibration after 1 minute if the reading is stable Press the Op forced after 1min key and screen page 3 2 4 will show after 1 minute Cancel calibration at any time Press the Cancel key and go to screen page 3 2 8 Cancel Calibration Cancel bleeding Bleeding running 3 2 8 29 min 58 s 8 02 remaining time...

Page 69: ...ng was stable and the calibration was forced from screen page 3 2 3 by pressing the VALID key then screen page 3 2 4 will appear Measure VALID Control 3 2 4 VALID Measure Passage of a control gas End of Adjustment Adjustment Figure 50 Screen Page 3 2 4 Pressing the Measure key will show screen page 3 2 7 To return to the measurement close the adjustment gas cylinder Pressing the VALID key will tak...

Page 70: ... after 1min key and screen page 3 2 7 will show after 1 minute Cancel calibration at any time Press the Cancel key and go to screen page 3 2 8 At the end of the verification period the diagnosis will appear on screen page 3 2 7 Cancel VALID Close ctrl gas bottle then VALID Sensor OK 3 2 7 Adjustment Figure 53 Screen Page 3 2 7 Three outcomes are possible and will be displayed as a message on the t...

Page 71: ...alarm contacts will be activated during the calibration sequence and will respond according to the configuration set by the user De Activation of Alarms The alarms may be de activated during installation and set up If the alarms are de activated and the system detects a fault and or an alarm threshold is passed the alarm relays are not activated In this case a message describing the fault will app...

Page 72: ...sured voltage is 90 to 264 V AC verify the mains power to the analyzer Display disconnected BEWARE OF ELECTRIC SHOCK BURN HAZARD Remove the analyzer cover Ensure the plugs of the 20 way ribbon cable are connected to both the display PCB and the mother board and that the wiring is intact Ensure the plugs of the 2 way cable are connected to both the display PCB and the mother board and that the wiri...

Page 73: ...ELECTRIC SHOCK BURN HAZARD Remove the analyzer cover Measure the resistance of the heater across J11 pins 10 11 If 8Ω measured value 11Ω replace the oven 15 V supply faulty BEWARE OF ELECTRIC SHOCK BURN HAZARD Remove the analyzer cover Measure voltage across J11 pin 11 to J12 pin 10 If 13 V measured value 15 V return the analyzer to Michell Instruments for further investigation Thermocouple short ...

Page 74: ...r Measure voltage across J11 pin 11 to J12 pin 10 If 13 V measured value 15 V return the analyzer to Michell Instruments for further investigation Leak in gas sample path BEWARE OF ELECTRIC SHOCK BURN HAZARD Remove the analyzer cover Ensure all gas fittings are tight If the problem persists return the analyzer to Michell Instruments for further investigation Faulty electronic flow meter Return the...

Page 75: ...12 pin 9 10 Replace external sensor if problem persists No power to external pressure sensor Check the power supply to external sensor Faulty analyzer Return the analyzer to Michell Instruments for further investigation Calibration gas measurement fault Gas measures out of specification Calibrate analyzer Calibration gas empty Check calibration gas cylinder replace if empty Faulty analyzer Return ...

Page 76: ...XZR400 Series User s Manual 66 97472 Issue 3 August 2018 APPENDIX A Appendix A Technical Specifications ...

Page 77: ...ensation Built in as standard Optional sensor Moisture sensor Easidew sensor can be fitted as an option Please see a separate datasheet for full specifications Measurement range 100 C to 20 C Sample Flow rate 60 to 300 Nl hour Outputs Analog Output 0 1 or 2 off 0 4 20 mA Linear with Galvanic Isolation output Digital Communications Output Modbus RTU over RS485 protocol Standard on XZR400A1 RS232 ou...

Page 78: ...ion Mechanical Specification Model Dimensions Weight Gas Connectors Ingress Protection Rack mount 19 3U 482 5 x 133 x 371 5mm 10kg 1 8 IP20 Wall mount 200 x 220 x 290mm 5kg 6 mm IP40 Bench mount 290 x 260 x 236mm 5 2kg 6 mm IP20 Transportable 450 x 300 x 330mm 13 5kg 6 mm IP40 Sample Gas Connections All gas connections are Swagelok MALE Fittings 316 SS ...

Page 79: ...XZR400 Series User s Manual Michell Instruments 69 APPENDIX B Appendix B Modbus RTU over RS485 ...

Page 80: ... Appendix B Modbus RTU over RS485 B 1 Port Configuration Speed 9600 bauds No parity 8 bits 1 stop No handshaking B 2 Hardware Configuration 16 way terminal block connections 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 pin 14 RS485 B Data pin 15 RS485 A Data pin 16 RS485 0V ...

Page 81: ...n 0x12A 298 3 6 R W 16 Bit Control Gas Time Mins Yes Yes Purge Duration 0x12C 300 3 6 R W 16 Bit Duration of Purge Mins Yes Yes Start Adjustment TBA TBA 3 R 16 Bit Yes Yes CONFIGURATION Oven Set Temperature 0x160 352 3 16 R W 32 Bit Real 634 Nom IEEE 754 No Yes ANALOG OUTPUT 1 Type Lin Log 0x150 336 2 5 R W Bit Bit X 0 Lin 1 Log No Yes Low Limit 0x130 304 3 16 R W 32 Bit Real IEEE 754 No Yes High ...

Page 82: ...ual calibration 20 External pressure measurement 5 1 Disable analog outputs during manual calibration 21 Flow alarm Alarm 4 6 1 Alarms active during automatic calibration 22 Pump state 7 1 Disable analog outputs during automatic calibration 23 RS232 8 1 Automatic calibration active 24 RS485 9 External pressure control 25 Cleaning 10 External calibration password 26 Pressure sensor 11 Unused Bit 27...

Page 83: ...XZR400 Series User s Manual Michell Instruments 73 APPENDIX C Appendix C RS232 Serial Output ...

Page 84: ... bits 1 stop No handshaking C 2 Hardware Configuration The wiring cable should be equipped with 1 DB9 female plug and bare wire connectors and connected as follows 9 8 7 6 5 4 3 2 1 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 DB9 16 way terminal block DB9 16 way terminal block pin 2 pin 15 Tx pin 3 pin 14 Rx pin 5 pin 16 Ground strap 7 8 on same connector ...

Page 85: ...ation gas value XX XX E_ETA_X XX Set of calibration gas value X XX _STP Display of oven temperature set point XXX XX E_STP_XXX XX Set of oven temperature XXX XX _AL1 Display of first alarm level XXX XX E_AL1 Set of first alarm level XX XX _AL2 Display of second alarm level XXX XX E_AL2 Set of second alarm level XX XX _NET Starts self cleaning RECEIPT _YYY Unknown entry ERROR _TCA Measured oven tem...

Page 86: ...XZR400 Series User s Manual 76 97472 Issue 3 August 2018 APPENDIX D Appendix D Extended Operating Range Optional ...

Page 87: ...t the time of order stating the maximum oxygen percentage required 0 to 30 or 0 to 50 The default range is 0 to 25 NOTE If an extended range is supplied then this will result in a reduction in resolution and accuracy below 1 O2 WARNING If an extended range is purchased ensure that the analyzer has been cleaned for oxygen service before use ...

Page 88: ...XZR400 Series User s Manual 78 97472 Issue 3 August 2018 APPENDIX E Appendix E Process Pressure Correction Optional ...

Page 89: ...rocess The following screen is used to configure the scale range Pressure correction 5 6 Start of scale End of scale 0 0 bar abs 2 0 bar abs Figure 54 Pressure Correction Screen An input signal of 4 mA corresponds to the low scale set value A input signal of 20 mA corresponds to the high scale set value E 1 Process Pressure Correction Input Connections The 4 20 mA pressure transmitter signals shou...

Page 90: ...XZR400 Series User s Manual 80 97472 Issue 3 August 2018 APPENDIX F Appendix F Flow Fault Contact Optional ...

Page 91: ... 3 5 l h the contact is closed and potential free The relay switching capability is 150 W max up to 5 A at 250 V AC or 5 A at 30 V DC F 1 Flow Fault Output Connections Access to the flow fault contact is via the DB15 socket on the rear panel of the analyzer 1 2 9 10 11 12 13 14 15 3 4 5 6 7 8 Contact No Function 1 Flow fault contact 2 Flow fault contact ...

Page 92: ...XZR400 Series User s Manual 82 97472 Issue 3 August 2018 APPENDIX G Appendix G Commutable Scale Auto Ranging ...

Page 93: ... 0 and 100ppm 0 and 1000ppm 10 and 10000ppm or 1 and 25 on the second 4 20 mA output The alarm contacts 1 and 2 indicate the beginning and the end of the scale used on the second 4 20 mA output Settings are indicated below 4 20 mA output Low Scale Up Scale Alarm 1 Contact Position Alarm 2 Contact Position No 1 0 10ppm No 2 0 100ppm Open Open 0 1000ppm Closed Open 10ppm 10000ppm Open Closed 1 25 Cl...

Page 94: ...XZR400 Series User s Manual 84 97472 Issue 3 August 2018 APPENDIX H Appendix H Optional moisture sensor ...

Page 95: ...pable of measuring dew point from 100 C to 20 C dew point If supplied with a moisture sensor dew point will be displayed underneath the oxygen concentration as shown below In the control parameters page the dew point is displayed to the right of the O2 concentration as shown in figure 56 In the main menu page press the button labelled DP Sensor to access the 4 to 20mA configuration Figure 55 Main ...

Page 96: ...or page you can configure the intput range from the dew point sensor by pressing the Start and or End of scale buttons and adjusting in the normal way Only adjust these settings if you have already altered the range of the Easidew transmitter NOTE The analyzer will require a total flow of 60 to 300 Nl hour 1 to 5 Nl min to ensure optimum response from the Easidew sensor Figure 58 DP Sensor Page ...

Page 97: ...XZR400 Series User s Manual Michell Instruments 87 APPENDIX I Appendix I Quality Recycling Warranty Information ...

Page 98: ... directives Full information can be found on our website at www michell com compliance This page contains information on the following directives ATEX Directive Calibration Facilities Conflict Minerals FCC Statement Manufacturing Quality Modern Slavery Statement Pressure Equipment Directive REACH RoHS2 WEEE2 Recycling Policy Warranty and Returns This information is also available in PDF format ...

Page 99: ...XZR400 Series User s Manual Michell Instruments 89 APPENDIX J Appendix J Analyzer Return Document Decontamination Declaration ...

Page 100: ...rdous chemicals YES NO Radioactive substances YES NO Other hazards YES NO Please provide details of any hazardous materials used with this equipment as indicated above use continuation sheet if necessary Your method of cleaning decontamination Has the equipment been cleaned and decontaminated YES NOT NECESSARY Michell Instruments will not accept instruments that have been exposed to toxins radio a...

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Page 102: ...http www michell com ...

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