xendos 1800 Series 1 1 INTRODUCTION 1.1 Warnings, Cautions
Contents
1. If the automatic flow control option is fitted replace the filter element located protruding through the front panel Reference Figure C at 3 month intervals This period may be extended for clean samples The analyser must be isolated from the sample or calibration gas while the filter element is being changed The filter element is removed by unscrewing the large filter cap on the front panel The old element must be disposed of safely If the element is wet or very dirty check that the sample conditioning is adequate Once the filter cap is replaced the filter seal should be checked for leaks The analyser must not be operated without the filter element in place as dust and other particulates may permanently damage the measuring cells 5 2 Cleaning The exterior of the analyser may be cleaned using a slightly damp cloth Do not use solvents or abrasive cleansers to clean the analyser 6 SPARES The following spares are required to maintain normal operation of the analyser Part Description xendos 1800 Series Quantity Number S1800986 Enclosure seals kit 10 off 1 pkt S1800987 Fuse kit F3 15A HBC 10 off 1 pkt S1800985 AFCD filter element kit 10 off 1 pkt 14 xendos 1800 Series The following spare items are also available for the analyser Number common parts Anti static glass window 1 off S1800966 Sample Inlet amp Outlet Tubes SS316 Kit 1 off 1800981 Sample Flow Alarm xendos 1800 1 off 18002. To change the above configuration on housekeeping board 1 Switch off the analyser 2 Open the hinged front left cover by undoing the four M6 bolts using a 5mm allen key 3 Open the hinged display cover with the screw situated in the middle of the right hand side 4 Set the links on the housekeeping board to the required position with reference to Figure D The links should be removed and replaced using a pair of snipe nosed pliers 5 Spare range labels are provided with the analyser that slip into the side of the front panel to indicate the new ranges selected 10 xendos 1800 Series 6 Switch on the analyser the Range LED indicator on the front panel will show whether Range 1 or Range 2 has been selected see Figure C 3 2 Alarm Set Point Adjustment The alarm setpoint range is equal to the full scale range of the analyser and its digital display 0 100 O The alarm level is set as an Oxygen concentration value It is independent of the scaling selected for the analogue outputs Changing the ranges of the output signals with the Range Change push button switch on the front panel does not effect the alarm setpoints Adjusting the alarm setpoint does not effect the current or voltage output signals 1 Open the hinged front left cover using an 5mm allen key 2 Press the Alarm set button one of the LED indicators will be illuminated The setpoint for this alarm will be shown on the display Adjust the alarm
3. setpoint control adjacent to the illuminated indicator to achieve the desired alarm setpoint 3 Press the Alarm set button again a LED indicator for the other alarm will now illuminate Adjust the alarm setpoint displayed to the desired level The LED indicators also indicate whether the alarm is configured to be a High or Low alarm they will flash if an alarm is present and will automatically clear when the oxygen concentration returns to normal Refer Figure C xendos 1800 Series 11 4 CALIBRATION 4 1 Zero and Span adjustment CAUTION The pressure and flow rates of the zero and span gases used to calibrate the xendos analysers must not exceed the values detailed in the table in Section 2 5 Sample Gas Connection The analyser should have been running for at least four hours before carrying out calibration It is recommended that the sample outlet from the xendos analyser be vented directly to atmosphere In oxygen purity applications changes in atmospheric pressure can effect the measurement Fitting the Back Pressure Regulator option will reduce this effect See the table in Section 7 1 The zero and span calibration gas can be introduced into the analyser via a 3 way valve fitted into the sample inlet pipework or directly into the analyser sample inlet by disconnecting the sample pipework and isolating the sample flow elsewhere 1 Open the hinged front left cover using a 5mm allen key 2 To set the zero
4. a period of 4 hours has been allowed for warm up this will prevent condensation of the sample in the measuring cell The inlet pressure and flow rate for the sample or calibration gas must not exceed the limits specified in the following table or damage could occur If necessary an external pressure reducing device must be used to reduce the pressure to the stated limits When pressurising the sample system for the purpose of leak testing ensure that pressure is increased and decreased slowly High internal flow rates created when the pressure is changed rapidly will damage the measuring cell xendos 1800 Series Sample and Calibration Gas Condition Requirements High flow Base cell or AFCD AFCD Analyser Bypass AFCD Sample Pump BPR Inlet 0 04 psig 0 05 psig 1 to 5 psig 0 03 to1 psig 17 to 22 psia Pressure 0 3 kPag min 0 4kPag min 7 to 35 kPag 0 2 to 7 kPag 119 to 154 kPaa Flow 50 to 250 50 to 70l hour 1 2 to 3 5 1 6 to 1 8 1 0 to 2 0 Rate ml min 60l hr l min l min l min nominal 11 5 to 18 psia 80 5 to 126 kPaa DO NOT RESTRICT ANALYSER VENT Non condensing at ambient temperature 10 C to 50 C 14 F to 122 F lt 3 um micro metres Clean non flammable and free from oil and condensate 4 NPT INT Inlet Outlet Connectors See Figure A Female Adjust pressure and flow externally to provide sample flow rate For flammable samples use a xendos 1900 Series analyser For corrosive samples use a
5. and verified in accordance with the international standard IEC 1207 1 1994 Expression of performance of gas analysers 16 xendos 1800 Series Measurement Range Analogue Output ranges Analyser Outputs Digital display Optional Display resolution Current output Linear Fault states flow fail Voltage output Linear Fault states flow fail Range indication ALARMS Concentration alarms Concentration alarm hysteresis Sample flow fail alarm Alarm relay contact rating Transducer Fault xendos 1800 Series 0 0 100 0 of Oxygen O Two user configurable analogue output ranges selectable from 0 2 5 5 10 25 and 100 O 3 5 digit backlit LCD 0 0 to 100 0 O 4 5 digit LCD 0 00 to 100 00 O 0 1 O or optional 0 01 O 4 20mA isolated maximum 600 Ohms lt 22mA maximum the current output signal corresponds to the full scale range selected High on Fault gt 20mA Low on Fault OmA 0 1Vdc non isolated output impedance 470 Ohms typical the voltage output signal corresponds to the full scale range selected High on Fault 1 2V Low on Fault 1 2V Volt free relay outputs and LED Two volt free relay outputs and LED User configurable as High or Low Set point field adjustable over range 0 100 O 0 2 to 0 3 O Volt free relay output and LED 250V a c 3A or 28V d c 1A non inductive maximum and 5V 10mA a c d c minimum current and volta
6. equipment 1 Electrical terminations are suitable for 20 AWG 0 5 mm to 14 AWG 2 5 mm solid conductors or stranded conductors 2 Gland entry sizes and positions are shown in Figure A Two of the three cable entries are fitted with appropriate blanking plugs 3 Do not exceed the maximum current output load impedance of 600 Ohms xendos 1800 Series 5 4 Electrical power should be supplied at 100 V to 240 Vac 10 50 60Hz Note The optional internal sample pumps are AC voltage dependant Ensure that the correct AC input voltage is connected to analysers fitted with a sample pump A power on LED is illuminated when power is present at the analyser 5 For compliance with the EMC standards the external earth ground connection must always be connected to a local earth ground Refer to Figure A In addition the connections to TB2 TB3 and TB4 must always be made using a screened or shielded cable with the earth termination being made at the cable gland Ensure good EMC practices are observed when making connections 6 All electrical connections and access to the power supply fuse F1 are made to the terminal board inside the right hand side of the analyser Refer to Figure B for details and full specifications are given in the following table To gain access refer to Figure A and remove the right hand cover by unbolting the four M6 bolts using a 5mm allen key After electrical connections are complete ensure the lid
7. introduce zero calibration gas this should be high purity nitrogen 99 9 min Once the reading has stabilised adjust the zero control so that the display reads 0 0 oxygen 3 To set the span introduce span calibration gas normally this can be good quality clean dry instrument air nominally 20 95 oxygen is recommended for all ranges except where the sample will have an oxygen content greater than 21 For samples with oxygen content above 21 a suitable certified calibration gas is essential Once the reading has stabilised adjust the span control so that the display reads 20 9 oxygen or the actual level of oxygen in the calibration gas cylinder with the optional 4 5 digit display board the zero can be set to 0 00 and span to 20 95 The calibration should be checked either weekly monthly or 3 monthly depending on application 12 xendos 1800 Series 4 2 Zero and Span adjustment of the Isolated 4 20mA analogue output signal Located in the top left hand corner of the terminal compartment of the enclosure are two potentiometers for the Zero and Span adjustment of the isolated current output signal 1 Connect a current meter with the range set to 0 to 100mA between Pin 3 ve of TB4 and Pin 4 ve of TB4 2 Connect a voltage meter with the range set to 0 to 2Vdc between Pin 1 ve of TB4 and Pin 2 ve of TB4 3 Set the output measurement range to 0 to 25 O 4 Apply Nitrogen to the inlet of the an
8. solvent resistant cell option AFCD Automatic Flow Control Device BPR Back Pressure Regulator 8 xendos 7800 Series If the automatic flow control device option is fitted no external flow control is necessary the sample pressure must be between the limits specified in the previous table and or the latest Technical Data Sheet If the optional automatic flow control device option is not fitted it will be necessary to regulate the sample pressure flow within the limits specified in the previous table to ensure stable operation and to prevent damage to the measuring cell If an external sample pump is used it may be necessary to reduce pressure pulsing with a reservoir The sample exhaust from the analyser should be vented freely to atmosphere WARNING Verify that connections are leak free at full operating pressure before applying sample or calibration gases These gases may be toxic or asphyxiant Consideration should be given to the toxicity corrosiveness and asphyxiant nature of the sample and enclosure purging gas when selecting a vent location 2 6 Enclosure purge connection WARNING If the sample gas is of a toxic or corrosive nature it is recommended that the enclosure purge option is fitted If fitted the enclosure purge must be operational before removing any covers The enclosure purge inlet and outlet connection sizes and location are shown in Figure A Supply air or inert gas at 100 to 20
9. 0 ml minute Vent the outlet freely to atmosphere 2 7 Shut down procedure Before removing power from the analyser disconnect the sample gas and flush the analyser sample pipework with dry nitrogen or good quality instrument air for 10 minutes xendos 1800 Series 9 3 SETTING UP 3 1 Configuration The analyser is supplied with a digital display which is always ranged 0 100 Oxygen an isolated current and non isolated voltage outputs These outputs may be used simultaneously The push button Range switch on the front panel and or the settings of Link 3 4 selects the full scale range of both outputs The default analyser configuration is as follows Link Parameter Setting Link Parameter Setting LK1 Alarm 1 Low 0 0 O LK4 Range 2 0 25 O LK 2 Alarm 2 High 21 0 O LK 5 Flow Alarm Fitted if option included LK 3 Range 1 0 10 O LK 6 Failure Mode Low on Fault Failure Mode If the sample flow fail alarm option is fitted and a low sample flow condition is detected then the isolated 4 20mA output signal depending on the link setting selected will go to either OmA default or gt 20mA to indicate that this fault is present Note Transducer failure will produce a Low on Fault condition The flow alarm indicator will flash if the sample flow falls below a satisfactory level and the flow alarm relay will go to the alarm condition The alarm and relay are automatically cleared when the flow returns to normal
10. 1 INTRODUCTION 1 1 Warnings Cautions and Notes This publication includes WARNINGS CAUTIONS and NOTES which provide information relating to the following WARNINGS Hazards which could result in personal injury or death CAUTIONS Hazards which could result in equipment or property damage NOTES Alert the user to pertinent facts and conditions 1 2 Scope of this manual This manual covers installation normal operation and routine maintenance on xendos 1800 Series analysers For the latest technical specification refer to the Technical Data Sheet Addresses for technical assistance and spares are given on the rear cover A service manual is available for use by qualified personnel part number 01800002B About this manual Ref 01800 003B 2 Order as part 01800003B xendos 1800 Series 1 KEY TO FIGURES Figure A Mounting details 1 M6 bolt 4 off 5mm allen key 7 Purge outlet if used 2 LH cover hinged 8 Sample outlet 3 Display window 9 Sample inlet 4 RH cover 10 Cable entries 3 off 5 M8 mounting slot 4 off 11 M6 earth stud 6 Purge inlet if used 12 Breather Port Sample Purge Inlet Outlet and Breather Port 4 NPT INT p g Figure B Electrical connections 1 Range contacts 7 Electrical supply terminals 2 Flow Fail alarm contacts 8 Output cable entry 3 Alarm 2 contacts 9 Supply cable entry 4 Alarm 1 contacts 10 Alarm cable entry 5 Linear non isolated Outpu
11. 989B Standard O Transducer Assy 1 off Part Description xendos 1800 Quantity Number sample option standard 1420935 AFCD for analysers fitted with optional flow alarm 1 off Part Description xendos 1800 Quantity Number sample option solvent resistant high flow cell S1802966 Sample Inlet amp Outlet Tubes Hastelloy C 276 Kit 1 off S1802989B solvent resistant O Transducer Assy 1 off 1804989B high flow O Transducer Assy 1 off S1806989B solvent resistant high flow O Transducer Assy 1 off xendos 1800 Series 15 7 TECHNICAL SPECIFICATION xendos 1800 Series 7 1 Analyser Performance High Flow Base Transducers Analyser AFCD Standard or Solvent Resistant Intrinsic Error lt 0 2 of reading or 0 05 O accuracy Linearity Error lt 0 05 O Repeatability lt 0 1 of reading or 0 05 O Noise lt 0 04 lt 0 05 lt 0 05 lt 0 04 lt 0 04 peak to peak 0 Zero Drift lt 0 05 O per week lt 0 1 of reading or 0 05 O per week Response lt 4 lt 7 lt 8 lt 7 5 lt 5 Time Tso Ambient 0 2 O 0 5 of reading Temperature Coefficient per 10 C Coefficient of reading for a 1 change in ambient pressure Sample Flow lt 0 1 O over N A NIA N A lt 0 2 O over Rate Effect 50 to 250 50 to 70 mis min litres hour Whichever is the greater Inherently linear value dependent on calibration gases The performance specification has been written
12. alyser at the correct pressure and flow rate When the analyser reading has stabilised adjust the Zero potentiometer on the analyser front panel so that the voltage output reads 0 000Vdc 5 Then adjust the 4 20mA Zero potentiometer located in the terminal compartment to give an output current of 4 00mA Then apply high quality clean instrument air ie 20 95 O to the inlet of the analyser at the correct pressure and flow rate 6 When the analyser reading has stabilised adjust the Span potentiometer on the analyser front panel so that the voltage output reads 0 838Vdc 7 Then adjust the 4 20mA Span potentiometer located in the terminal compartment to give an output current of 17 41mA Where required the Display board has the facility to change the range of the Span adjustment for local altitudes or sample pressures Adjust as follows 1 Open the sample compartment hinged cover and open the hinged display panel The coarse span adjustment potentiometer RV3 is accessible from the side of the display board just above the display panel latch 2 Apply high quality clean instrument air to the analyser and set the front panel Span control to maximum fully clockwise Adjust the coarse span potentiometer on the display board until the display reading is approximately 24 oxygen 3 Reset the front panel Span control to calibrate the analyser as in part 6 above xendos 1800 Series 13 5 ROUTINE MAINTENANCE 5 1 Filter Replacement
13. ample gases If your sample is flammable then a xendos 1900 Series analyser must be used Personal injury or equipment damage may occur if the xendos 1800 is not installed and operated in accordance with the instructions in this manual 4 xendos 1800 Series 2 4 Electrical installation WARNINGS The installer must be satisfied that the xendos 1800 installation conforms to the relevant safety requirements National Electrical Code and any other local regulations and that the installation is safe for any extremes of conditions which may be experienced in the operating environment of the analyser This appliance must be connected to a protective earth The electrical installation must include a means of isolating electrical power by a switch or circuit breaker external to the analyser and within easy reach of the operator It must be marked as the disconnecting device for the equipment It is essential that only suitably trained and competent personnel are allowed to access hazardous live parts by removing or opening covers of the analyser To comply with the European Community EMC Directives for industrial environments the interconnecting cables used for the mains supply relay contact outputs and or analogue output signals should be screened or provide equivalent protection CAUTION Connections to TB 4 analogue output signal s terminals should not exceed 30 V RMS 42 4 V peak or 60 V dc to earth when connected to associated
14. ge outputs go to Low on Fault state see above 17 Physical Size Weight Power Supply 448mm W x 235mm H x 229 mm D 173 W x 9 H x 9 D approx 26kg 57lbs 100 to 240Vac 10 50 60Hz 50VA maximum Materials in contact with the sample Basic Analyser Standard Cell Flow Alarm Standard Cell AFCD Standard Cell Sample Pump Standard cell BPR High Flow Rate Cell Stainless Steel Pipework Solvent resistant Cell Stainless Steel Pipework Solvent Resistant Cell Hastelloy Pipework Beryllium Copper Borosilicate Glass VS S S S Bonded Borosilicate Glass Fibre S AS SS SN Brass Phospher Bronze Flourocarbon Rubber Hastelloy C 276 Nickel electroless SK sS S NS Neoprene Rubber Glass Filled Nylon 12 Polysulphone Platinum Platinum Iridium Alloy NS VS VS VS Glass Filled Polypropylene Polypropylene NS INUNUESO INS SSNS PVC PVDF Y N INS SUN NS Gold Plated Silver 302 EN58A Stainless Steel 303 Stainless Steel 316 Stainless Steel Viton 325 Cell NISS SN S SUN Viton A SSNS NSN NS Chemraz 364 Cell PTFE 364 Cell VS 18 xendos 1800 Series Installation category Ingress protection Design standards Category Il Local level power distribution with over voltage withstand u
15. is fully bolted down WARNING If the relay connections to TB2 are used to switch a combination of 240V ac and 28V dc signals then all parts of the dc relay circuits must be protected to a minimum of IP20 6 xendos 1800 Series Power Connection Terminal Electrical Power Protective Earth TB3 1 100V to 240Vac 10 Neutral TB3 2 50 60 Hz 50VA maximum Live TB3 3 See Section 2 4 Item 4 if sample pump fitted Alarm Connection Terminal Alarm 1 Closes on Alarm 1 or Power Fail 250Vac 3A Opens on Alarm 1 or Power Fail 28Vdc 1A Common Alarm 2 Closes on Alarm 2 or Power Fail 250Vac 3A Opens on Alarm 2 or Power Fail 28Vdc 1A Common Flow Fail Alarm Closes on Flow Fail Alarm or Power 250Vac 3A Fail 28Vdc 1A Opens on Flow Fail Alarm or Power Fail Common Range Selected Output Connection Range 2 selected Closes on Range 2 or Power Fail 250Vac 3A Opens on Range 2 or Power Fail 28Vdc 1A Common Linear Analogue Output Signal Connection Termina l 0 to 1 Vdc Oxygen output signal ve TB4 1 non isolated output impedance 470 Ohms typical ve TB4 2 4 to 20mA Oxygen output signal lt 22mA maximum ve TB4 3 isolated maximum load impedance 600 Ohms ve TB4 4 The full scale of the above outputs represents the range selected by the push button Range switch on the front panel xendos 1800 Series 7 2 5 Sample and calibration gas connections CAUTION The sample gas must not be admitted to the analyser until
16. p to 2500Volts In accordance with IEC 664 IP 66 to IEC 529 1989 and BS EN60529 1992 NEMA 4X to NEMA standards publication No 250 Conforms to the following normalised European and International standards for product safety and electromagnetic compatibility Electromagnetic compatibility Emission Immunity Electrical safety xendos 1800 Series for use in domestic commercial and industrial environments EN50081 1 1992 EN50082 2 1995 EN61010 1 1993 IEC 1010 1 Amendment 1 1992 19 20 NOTES xendos 1800 Series
17. s and vibration The analyser must be mounted securely to a rigid vertical surface capable of supporting the weight of the analyser using the four fixing lugs provided or the panel mounting option The xendos 1800 must be mounted horizontally with the sample connections and electrical entries on the underside The sample conditioning system where required should be located below the analyser to prevent possible carry over of condensate into the measuring cell and please take careful note of the ambient temperature requirements The xendos 1800 is rated in accordance with IEC 664 for INSTALLATION CATEGORY II which is characterised as being local level ie not distribution level appliances and portable equipment with over voltage impulse withstand up to 2500 V xendos 1800 Series 3 Ambient Operating Conditions Operating Temperature 10 C to 50 C 14 F to 122 F Storage Temperature 20 C to 55 C 4 F to 131 F Atmospheric pressure 79 to 124 kPaa 11 to 18 psia for operating altitudes to 2000m 2 2 Panel Mounting A panel mounting option is available please consult Servomex for further details 2 3 Conditions for Safe Use WARNINGS The xendos 1800 is only suitable for installation in a safe non hazardous area If the application requires the oxygen analyser to be installed in a hazardous area then a xendos 1900 Series analyser must be used The xendos 1800 is not suitable for use with flammable s
18. t signals Cable entries NPT M20 or Pg13 5 6 Linear isolated Output signals 11 Power Supply Fuse F1 F3 15A HBC Figure C Control panel hinged 1 Power On LED 7 Flow Failure LED 2 Set ZERO potentiometer 8 Alarm LED 3 Set SPAN potentiometer 9 Range change push button 4 Set ALARM push button 10 Range label Slip In 5 Alarm LEDs 11 Sample filter Screws in through control panel 6 Digital display 0 0 to 100 0 O 12 Range LEDs optional 0 00 to 100 00 O Figure D Link settings on housekeeping board 1 Flow alarm LK5 4 Failure Mode LK6 2 Range 1 LK3 5 Alarm 2 LK2 3 Range 2 LK4 6 Alarm 1 LK1 EC Directive Compliance The xendos 1800 complies with the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC as amended by Directive 92 31 EEC both as amended by Directive 93 68 EEC 2 xendos 1800 Series 1 3 Unpacking WARNING The xendos 1800 weighs approximately 26kg 57lbs and care must be taken when handling It is recommended that it is lifted with the fingers positioned underneath the rear casting Remove the xendos 1800 from its packing and inspect it for damage If damage has occurred inform Servomex or its agent immediately Please retain all packing and shipping information for future use 2 INSTALLATION 2 1 Location Select a location which allows convenient access for installation and maintenance and will minimise ambient temperature fluctuation
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