Emerson SC311 Infrared Combustible Gas Sensor
Contents
1. 4 Press and hold the push button or activate the Reed switch using the magnet for at least 15 seconds the status LED flashes green fast and then goes solid green first solid green Keep holding push button or magnet after which status LED goes solid red When this occurs release push button or remove magnet 5 When the current output is 3 mA indicated by analog models and the Status LED is once again solid green second solid green apply zero gas clean air Recommendation Flow ZERO AIR at a rate of 0 5 liter per minute or more to the sensor 6 When the current output is 3 3 mA indicated by analog models and the Status LED is flashing red apply specific calibration gas 50 of full span Recommendation Flow span gas at a rate of 0 5 liter per minute to the sensor for direct sensor calibrations If sensor is remotely mounted and long tubing run is used increase gas flow rate e g 1 0 liter per minute to ensure tubing length does not affect calibration results 7 When the current output is 3 6 mA indicated by analog models and the Status LED is solid green remove the gas 8 Apply zero gas clean air again to purge the system After the sensor is purged of gas the detector will return to normal operation Note When calibrating with the Millennium II Basic Transmitter always use 50 span gas half the scale Calibration gas can be air balanced or nitrogen balanced for IR sensors Calibration2. Appendix C Millennium II Mini IR Combustible Sensor Specifications SENSOR Performance Response Time Accuracy Zero Drift Repeatability Environmental Temperature Metallurgy IP Nema Rating Weight Separation Separation Approvals Approvals Mini IR combustible T50 lt 4 3 sec T60 lt 7 0 sec T90 lt 11 0 sec 2 full Scale lt 50 Full Scale 5 Full Scale gt 50 Full Scale 2 LEL Full Scale Performance verified 55 C to 85 C Certified 40 C to 75 C 0 99 RH non condensing Aluminum AL6061 or Stainless Steel 316 SS IP64 NEMA 4X Aluminum AL6061 enclosure 0 4kg 1 0lbs Stainless Steel SS316 enclosure 1 4kg 3 5lbs Up to 2000 feet 600 meters with 16 AWG wire is APPROVED 40 C lt Ta lt 75 C FM6320 CSA C22 2 No 152 EN61779 4 Class I Div1 Grps BCD Class I Zone 1 AEx Ex d IIB H2 T5 IP64 Type 4X FM ATEX 0575 II 2G Ex d IIB H2 T5 IP64 FM07ATEX0012X MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 24 MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 25 Net Safety Monitoring Inc 2721 Hopewell Place NE Calgary AB Canada T1Y 7J7 1 866 FIREGAS 347 3427 ph 403 219 0688 fx 403 219 0694 http www net safety com Email nsmsales net safety com PRODUCT SERVICES CONTACT INFORMATION Telephone 8am 5pm MD
3. MONITORING INC MILLENNIUM IT Combustible Gas Sensor Infrared Sensor User Manual E ig Model SC311X 100 ASSY ISO 9001 2000 Part Number MAN 0091 Rev 3 August 27 2010 IMPORTANT INFORMATION This manual is for informational purposes only Although every effort has been made to ensure the correctness of the information technical inaccuracies may occur and periodic changes may be made without notice Net Safety Monitoring Inc assumes no responsibility for any error contained within this manual If the products or procedures are used for purposes other than as described in the manual without receiving prior confirmation of validity or suitability Net Safety Monitoring Inc does not guarantee the results and assumes no obligation or liability No part of this manual may be copied disseminated or distributed without the express consent of Net Safety Monitoring Inc Net Safety Monitoring Inc products are carefully designed and manufactured from high quality components and can be expected to provide many years of trouble free service Each product is thoroughly tested inspected and calibrated prior to shipment Failures can occur which are beyond the control of the manufacturer Failures can be minimized by adhering to the operating and maintenance instructions herein Where the absolute greatest of reliability is required redundancy should be designed into the system WARRANTY Net Safety Monitoring Inc warrants this s
4. 71 8 9 226 Figure 2 Dimensional drawing for sensor with Millennium II series transmitters Millennium Il Transmitter with sensor Millennium Il Basic Transmitter with sensor A l c El i 3 98mm oon van L_ e DG D H k H MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc SECTION 1 Plan 1 1 Locate Sensor Prior to the installation process a plan should be developed for placement of the sensor Although there are no absolute rules determining the quantity of detectors or location of a sensor the following points should be considered when planning the installation e Carefully locate the sensor in an area where gases may potentially accumulate Remember light gases tend to rise and heavy gases tend to accumulate in low areas e Use redundant systems to enhance protection and reliability e Consider the air movement patterns within the facility e Consider the construction of the facility such as trenches where heavy gases or peaks where light gases may accumulate e Seek advice from experts knowledgeable about the primary gas to be detected e Use common sense and refer to the regulatory publications that discuss guidelines for your industry 1 2 Sensor Non Separated direct mounting The sensor is attached directly to a transmitter and placed in the appropriate location for detecting the gas in question target gas 1 3 Sensor Separated remot
5. A detailed description of the problem The more specific you are regarding the problem the quicker our Service Department can determine and correct the problem 3 A company name contact name and telephone number 4 A purchase order from your company authorizing repairs or request for quote 5 Ship all equipment prepaid to Net Safety Monitoring Inc 2721 Hopewell Place NE Calgary Alberta Canada T1Y 7J7 6 Mark all packages RETURN for REPAIR 7 Waybills for shipment outside Canada must state Equipment being returned for repair All charges to be billed to the sender Ensure a duplicate copy of the packing slip is enclosed inside the box indicating item 1 4 along with the courier and account number for returning the goods Pack items to protect them from damage and use anti static bags or aluminum backed cardboard as protection from electro static discharge ALL equipment must be shipped prepaid Collect shipments will not be accepted MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 21 Appendix Appendix A Electrostatic Sensitive Device ESD Definition Electrostatic discharge ESD is the transfer between bodies of an electrostatic charge caused by direct contact or induced by an electrostatic field The most common cause of ESD is physical contact Touching an object can cause a discharge of electrostatic energy ESD If the charge is sufficient and occurs near electronic componen
6. Status LED Solid Green Status LED Solid Green Current output 3 0 mA Release push button indicated by Analog magnet models Apply air from canister or use clean ambient air to perform zero Apply air from canister or use Status LED Flashing Red clean ambient air to perform zero Current output 3 3 mA indicated by Analog models Apply 50 span target gas to perform span Calibration successful Status LED Solid Green Current output 3 6 mA indicated by Analog models NO YES Remove gas and purge system with clean air from canister upon completion of Full calibration procedure then remove air canister Calibration Failed Status LED Alternating Red Green flashes Current output 3 0 3 3 mA indicated by Analog models Remove air canister after Zero calibration procedure if an a oe oes Perform manual reset Refer to manual reset in MII air canister was used Basic transmitter manual man 0082 Repeat calibration procedure Note See the Millennium II Basic transmitter manual MAN 0082 when locating calibration switch push button or magnetic switch 15 5 1 2 Calibrating with the Millennium II Transmitter The Millennium II Transmitter allows monitoring and detection of various combustible gases The following procedures are specific to this transmitter and should be followed to ensure accurate calibration and detection of gases Follow the steps below when se
7. The user should write to register 40009 using the preset single register command 0x06 to change the target gas The particular target gas is selected by entering the gas curve number that corresponds to the target gas from Table 5 below The table below outlines the primary detected gases of this sensor however multiple other gases are detectable Please contact your representative regarding any gases not included in this table Table 5 Target Gas with gas curve numbers __ Target Gas Gas Curve Numbers Methane Propane n Butane Iso Pentane n Pentane Ethane Tso Butane Ethylene Hexane indicates gases not performance certified When using the IR sensor with the Millennium II Basic Analog Analog HART and Relay Transmitter models make use of the transmitter s DIP Switch 2 positions as seen in Table 6 below to select the target gas and then follow the Normal Calibration Procedure to perform calibrations Use 50 LEL of the specific gas to be detected for calibration See example Table 6 and Full Calibration Normal Calibration Procedure below If calibration is not successful perform a manual reset See Millennium II Basic Manual MAN 0082 for manual reset Example If the target gas is say Propane set Dip Switch 2 position 1 in the ON position and positions 2 3 and 4 in the OFF position this corresponds to Propane Curve 2 then use 50 LEL Propane for calibration MAN 00
8. instructions are also accessed using the HART Communicator with the Analog HART model transmitter For HART Menu Structure Tree see Millennium II Basic Transmitter manual MAN 0082 Zero Calibration Option This option is useful if the sensor s zero point has drifted as a result of a change in the ambient conditions The Zero calibration option is selected if a sensor is only being zeroed this not a complete calibration It does not require the application of span gas as only the sensor s zero point is adjusted Ensure that no contaminants are present if the surrounding air is to be used for Zeroing If Zero calibration is needed at step 4 above hold the push button or activate Reed switch for 6 9 seconds using the magnet until the status LED goes solid green and then release the switch Zero calibration will begin immediately See Figure 4 Calibration Flow chart for Millennium II Basic Transmitter on next page for additional reference MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 14 Figure 4 Calibration Flow chart for Millennium II Basic Transmitter Calibration Procedure ZERO Calibration FULL Calibration Activate Hold calibration Activate Hold calibration switch for 10 15 switch for 6 9 seconds seconds Keep holding through first solid Green until status LED is Solid Red Status LED Solid Red Status LED Flashes fast Green Release push button magnet
9. 2 5 1 Calibration Prode dur da dees beds Chas Cons edad datada 12 5 1 1 Calibrating with the Millennium II Basic Transmitter concnoononnncnoncnnnnnnononnonnnnnonncononnn nono conc nn conc cnn cnncn nora na nccncnss 12 5 1 2 Calibrating with the Millennium IT Transmitter cece eecseseceseeecesecseesecseeecsaeeecsaecseesecneeseenaeeecaecaeesesaeeaes 16 9 173 Cross SENSI VI ri AA A tintas 19 3 2 Sensor Replacement Procedure decida 19 DiS TTOUDLESNOOUNG oss hoes ops DIS ies A A ee ace 20 DISTA lies ie 20 N I Spare Paris 1 ACCESSONMES Sia A A E EREE EGE 20 3 6 How to Return Equipment ini vets pistes poa edad Leis As AN dica aa cd 21 MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 3 O sesseeeessensssdcessowecsnsdseasvaesnas sess sbsestossaseussanesasasvasonassesdsdsesteseandunssaaseddenseesens Appendix A Electrostatic Sensitive Device ESD c scccsccssesecesecnseenseesseeseeeseeseeeseesecesecusecuaecsaecaaecaaeeaeeeseesaeeneeeeeeeseeeaes Appendix B Resistance Tableninin id Me eed ithe ees Appendix C Millennium II Mini IR Combustible Sensor Specificati0NS oooooonoonononnnnnnonnconocnnocnncnn nora nonn conan rana nnncnncc naco nos MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc INTRODUCTION Infrared SC311 combustible gas sensors are designed specifically for use with the Millennium II series transmitters These state of the art Smart sensors ar
10. 82 or the Millennium II Transmitter manual MAN 0076 for more information 4 1 2 Modbus registers Table 4 below shows the user accessible Modbus registers and meaning Table 4 Modbus registers and meaning Reg _ Readable Writeable Concentration value as calculated by sensor Sensor status Sensor Temperature Select target gas Resets the sensor Initialize zero amp span to calibrate sensor enter channel Zero only to zero sensor enter channel Note For the Millennium II Basic Transmitter enter 1 in register 40102 to calibrate the sensor and 1 in register 40104 to zero the sensor MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 11 SECTION 5 Maintaining 5 1 Calibration Procedure There are specific steps to be followed when calibrating with the Millennium II Basic and the Millennium I Transmitters These steps should be followed if accurate results are to be obtained Calibration gas can be air or nitrogen balanced It is recommended that these sensors be bump tested every 3 months 90 days to confirm proper response Calibration of these sensors is required each year to confirm proper functioning 5 1 1 Calibrating with the Millennium II Basic Transmitter When using the IR sensor with the Millennium II Basic Digital Transmitter Model the target gas can be selected or changed by accessing a specific Modbus register
11. 91 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 12 Table 6 Millennium II Basic Transmitter DIP Switch 2 positions combinations DIP Switch 2 Position 1 Position 2 Position 3 Position 4 Gas Curves Curve 1 Methane Curve 2 Propane Curve 3 n Butane Curve 4 Iso Pentane Curve 5 n Pentane Curve 6 Ethane Curve 7 Iso Butane Curve 8 Ethylene Curve 9 Hexane Z Curve 10 TBA Z Curve 11 TBA Z Curve 12 TBA Z Curve 13 TBA Z Curve 14 TBA Z Curve 15 TBA o0 0 0 0 OO 10 O Z Curve 16 TBA indicates gases not performance certified If the sensor s configuration setting curve is setup correctly as desired refer to Millennium II Basic Transmitter calibration procedure below and or Figure 4 before attempting calibration MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 13 Millennium II Basic Transmitter Normal Calibration Procedure Calibrations may be performed either by using the magnet non intrusive or by using the push button intrusive 1 Confirm successful power up of transmitter green blip blink of status LED every second no fault indicated Bypass any output alarms recommended 3 For analog model connect a standard current meter to the transmitter s Test Jacks not required but gives visual confirmation
12. Ensure adherence to applicable local guidelines and requirements on wiring and sealing of equipment in hazardous and non hazardous areas e Ensure that proper shielding and grounding practices are adhered to and local codes are being followed e Check system operational voltage and conditions See Table 3 and Appendix C e Check wiring at all termination and junction points wiring at transmitter terminals junction box and at power supply See Table 3 above and specific transmitter manual MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 9 SECTION 3 Operation 3 1 Configuration Settings All configuration settings are accessed through the Millennium II series transmitters When using the Millennium II Basic Transmitter configuration settings are made by setting DIP switches or accessing Modbus registers depending on the model Millennium II Basic Transmitter For the Millennium II Transmitter settings are accessed by selecting menu options Refer to Section 5 1 1 Calibrating with the Millennium II Basic Transmitter and Section 5 1 2 Calibrating with the Millennium II Transmitter for information on selecting target gas curves Also see the relevant transmitter manual for information on Modbus settings 3 2 Sensor Power Up When power is applied to the sensors by transmitters a 90 second warm up routine will begin whereby sensors are automatically tested to ensure proper functioning Refer to the Millenn
13. T 403 769 6074 403 717 8219 Fax 403 219 0694 Email productservices net safety com http www net safety com service product_services html MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc MONITORING INC 26
14. cedure Always use 50 span gas half the scale of the specific target gas when calibrating this sensor Note that if a calibration is not successful the message Span failed will be displayed and a manual reset will have to be initiated Refer to Millennium II Transmitter manual MAN 0076 for manual reset Enter the main menu first by pressing any key to get the enter main menu prompt then press select menu button I or Reed switch 1 to select yes When Calibrate Sensor is displayed select the enter key menu button 3 or Reed switch 3 When Calibrate Sensor 1 is highlighted press the enter key menu button 3 or Reed switch 3 if this is the sensor to be calibrated or If Sensor 2 is to be calibrated select the down arrow key menu button 2 or Reed switch 2 to scroll to Calibrate Sensor 2 MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 16 5 When the desired sensor to be calibrated 1 or 2 is highlighted activate the enter key menu button 3 or Reed switch 3 6 Select YES menu button I or Reed Switch 1 to confirm the selection 7 Apply clean air when Apply Clean Air is displayed then select Z 4 Span using menu button 1 or Reed Switch 1 for normal calibration Setting zero will be displayed as the sensor is being zeroed Ensure no contaminant gases are around if ambient air is being used 8 Apply 50 calibration gas when pro
15. e both versatile and reliable for fast accurate and continuous monitoring of gases in extreme environments THE PRODUCT The sensor assembly consists of a factory sealed explosion proof enclosure housing rated for hazardous locations and a replaceable combustible sensor module This sensor should only be used with the Millennium II series transmitters Millennium II Basic Transmitter and the Millennium II Transmitter If the sensor is connected to any other model transmitter it will not function and may result in the sensor being damaged THE MANUAL This manual has been designed to ensure the sensor is set up operated and maintained properly It outlines specific details of the IR sensor and addresses calibration procedures using the Millennium II Basic Transmitter and the Millennium II Transmitter If you encounter any problems see the troubleshooting section of this manual or contact your local representative Figure 1 Sensor Dimensional Drawing Measurements are in inches and millimeters mm External Grounding Point t Ea 19 mm 4 375 111mm 47 119mm Y 66mm 2 9 gt 74mm MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc Transmitter and Sensor Enclosure Dimensions The tables below give the enclosure housing dimensions of the Millennium II Transmitter with sensor and Millennium II Basic Transmitter with sensor Both transmitter and sensor encl
16. e mounting The sensor should always be connected to a certified junction box when separated from transmitter The transmitter is located near eye level for easy access and the sensor is mounted where gas is likely to accumulate A calibration cup is clipped onto the bottom of the sensor enclosure and the calibration tubing is attached to the calibration cup and runs back to a convenient place for applying calibration gas eliminating the need to access the sensor directly Calibration gas can then be applied from ground level To compensate for the effect of distance when remotely calibrating in separation configuration decrease the tubing diameter or increase the calibration gas flow rate between the gas canister and sensor On initial install always confirm tubing run is not affecting calibration Calibrate the sensor using tubing run and then confirm readings directly at sensor by applying calibration gas and comparing the output results Readings should be accurate to the calibration gas concentration used MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc Figure 3 Locating Sensor Junction Box Side Calibration Fitting Sensor Tubing for Calibration Gas Conduit to Transmitter gt Apply Calibration Gas aa Transmitter rer SECTION 2 Installation 2 1 Unpack Carefully remove all the components from the packaging and check them against the enc
17. ensor against defective parts and workmanship for a period of 5 years from the date of shipment No other warranties or liability expressed or implied will be honoured by Net Safety Monitoring Inc Contact Net Safety Monitoring Inc or an authorized representative for details We welcome your input at Net Safety Monitoring Inc If you have any comments please contact us at the telephone number or address below or visit our web site www net safety com and complete our on line customer survey If further language translation for this manual is required please contact CONTACT INFORMATION Net Safety Monitoring Incorporated Direct 403 219 0688 Corporate Headquarters Facsimile 403 219 0694 2721 Hopewell Place NE E mail nsmsales net safety com Calgary AB Canada T1Y 7J7 Web site www net safety com MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc TABLE OF CONTENTS INTRODUCTION cccssssssssssssersssrsessessssessessrsessessssessessnsessessssessessssessasessessassssesessessesessessassassssassesessesasessessasessessesesseseesers 5 THE PRODUCT espe bhatt a ies wea nea eee AS Senate ante A Bh aia So atta Nes 3 THE MANUAL noe 3A eae A a id ee ana 9 Transmitter and Sensor Enclosure Dimensions sssssesesesseserssseseseseesesesesreesresseseveeserensessnerecststreesesestseesteeestseretrerossertees 6 SECTION 1 sa E 1 1 E T E EEE T 7 I E E AE CNS RE T E E E E E E E A EE 7 1 2 Sensor Non S
18. eparated direct mounting seeeessseeeesseeeeseeesssrreresesreesesresrrreertssestresesteeresreesterrtnestresesteetsstertsseerrssestt 7 1 3 Sensor Separated remote MOUNTING iii adidas 7 SECTION 2 Installation ccccscsssssssscsssscscesssceesecssscsssscessecsssceasseessacassceacseeseacassseasseesencaseceasscessacassceasseeseacesscescseessaeesecsaes 8 2 LAP ACh ere sods mv sssesusos E RS amp DD MM OUNE ES Saas Ri ccs Bin ces A Lace pan ath antes ns tata edd BUNGE Na cca A lis guts RUE tea LIVWITIB IAN iS A AA Acida 2 31 Field Installation cin hos ab esiesiag canst eeu ay etek AS ial abd eee ate 8 Earth Ground Bi bad 8 2 3 2 Sensor WIND A A RE ase E die Arete 9 2 3 3 Installation Checklist ui iaa 9 SECTION 32 UA TN 10 BE CON SULA ON SNE 10 FD Sensor Power UP ii 10 3 3 SENS OVC OMIMUNICALON sii bs desea E bbe vas chess oud ea sage toicoua sa abe biua Golda pas E ona saantgcanueaeeeeeas 10 SECTION 4 Outputl cccsssssssssssessessssessessssessessssessesseseseesessessssssessesessessssessessesessasseseesessessesessessesesessesessassesessessseessers 11 4 1 Alarm and Fault Ouipulsi A Bastien A A eee a oR ha ona 11 4 1 1 Other Available Outputs usina id dia aisla dai dable dedos lr dto hs des 11 412 Modbus registers taa da as da id Weer ea Bisbee aa babes it des 11 SECTION 5 Maintaining isccsscccssssssssesseassenseseseseassoasdesosdaesassenseassenssisseogsetdooesdonssoonssensoaeseas Sasso Sedocaeossassnstoveedeasoassooseasonsses 1
19. f sensor will react to most compounds containing a Carbon Hydrogen bond hydrocarbons in varying degrees For more information please contact the manufacturer 5 2 Sensor Replacement Procedure Sensors are pre calibrated at the factory but field calibration must be performed as part of commissioning When a calibration can no longer be performed or the sensor is not operating properly the sensor module may need to be replaced Refer to steps below for replacing sensor module Warning A Do not open enclosure in a classified area Note Components are ESD sensitive as a result all ESD rules and procedures should be observed See Appendix A for ESD guidelines To replace the sensor module 1 Remove power from sensor 2 Remove the locking ring by loosening the set crews with 1 5 mm Allen Key tool 3 Remove the bottom part of the sensor enclosure by turning in a counter clockwise direction to expose sensor module Carefully remove sensor module from sensor enclosure Align and properly fit replacement sensor module Install and hand tighten the bottom part of the sensor enclosure by turning in a clockwise direction Install the locking ring by tightening the set screws with 1 5 mm Allen Key tool 2 A ore Restore power to sensor via transmitter MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 19 5 3 Troubleshooting Sensors and controllers transmitters are not designed to be repaired in the fie
20. ium II Basic Transmitter manual MAN 0082 or the Millennium II Transmitter manual MAN 0076 for status indications during this period It is recommended that these sensors be powered up for 24 hours prior to the first calibration 3 3 Sensor Communication SC311 sensors use a proprietary protocol to communicate with the Millennium II series transmitters These sensors should never be connected to any device other than the Millennium II series transmitters Selected DIP switches and menu options allow communication between transmitters and sensors Configuration settings are stored in the sensors memory Incorrect settings will cause sensors not to communicate properly with transmitters If any problems develop see troubleshooting section MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 10 SECTION 4 Output 4 1 Alarm and Fault Outputs Sensor alarm and fault outputs are generated by the Millennium II series transmitters based on communication with sensors however some output values registers etc may vary depending on sensor type The default alarm levels points for the sensor are 20 for the low level and 40 for the high level 4 1 1 Other Available Outputs All available outputs are associated with the Millennium II series transmitters These outputs are 4 20 mA output Relay Output RS 485 Modbus RTU output and HART Communication output Refer to the Millennium II Basic Transmitter manual MAN 00
21. l 2 are similar MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 17 Figure 5 Calibration Flow chart for Millennium II Transmitter Calibration Procedure P rge system with clean air from canister then remove air canister Calibration complete Activate any menu button Remove Calibration Gas Span Failed Perform manual reset See MII transmitter manual MAN 0076 Span successful Repeat l calibration Activate menu button 1 procedure y Enter Main Menu CH1 Spanning LEL reading Calibrate Sensor Activate menu Apply 50 Span gas button 3 to select l Calibrate Sensor 1 4 1 Remove air canister if air canister was used l in Zero calibration Zero calibration complete Zero Failed Remove air canister in Full calibration Perfor procedure and continue to span step manual reset i See MII l transmitter manual Zero successful Activate menu button MAN 0076 3 to select Repeat y calibration procedure Calibrate Sensor 1 Apply Clean Air Z amp SPAN ZERO Activate menu button 1 Activate menu button 1 Activate menu button 3 to select to select ZERO FULL Calibration Calibration Apply air from canister or use clean ambient 5 1 3 Cross sensitivity This relates to the fact that certain compounds and or gases can cause a reaction and hence some effects or response from the sensor This type o
22. ld If problems should develop first check for faulty wiring confirm proper voltage to sensor and attempt a calibration If problems persist please contact Net Safety s Service Department first by phone to try and resolve any issues If issues cannot be resolved please follow the procedure on next page on how to return equipment 5 4 Storage The sensor and its electronic components parts should be stored in locations free from dust and moisture The storage temperature should be well within the limits of the certified temperatures of the equipment See Appendix C for certified temperatures 5 5 Spare Parts Accessories Table 7 Available Spare Parts Description Net Safety Part Number Calibration Cup Splash Guard CCS 1 Separation Kit JB MPD A aluminum or JB MPD S 316 stainless steel Dust Filter Assembly DSC 1 Replacement Mini IR Sensor SC311 100 IP66 67 Hydrophobic Filter IPF 001 MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 20 5 6 How to Return Equipment A Material Return Authorization number is required in order to return equipment Please contact Net Safety Monitoring at 403 219 0688 before returning equipment or consult our Service Department to possibly avoid returning equipment If you are required to return equipment include the following information 1 A Material Return Authorization number provided over the phone to you by Net Safety
23. lecting the particular gas to be detected target gas Selecting the target gas 1 Enter the Main menu first by pressing any key to get the enter main menu prompt then press menu button 1 Reed switch 1 to select yes Select the up arrow key menu button 1 or Reed switch 1 or down arrow key menu button 2 or Reed switch 2 until Select Gas Type option is displayed Select the enter key Menu button 3 or Reed switch 3 to enter the option If channel 1 s gas type is to be configured select with the enter key Menu button 3 or Reed switch 3 or If channel 2 s gas type is to be configured use the down arrow key Menu button 2 or Reed switch 2 and then select with the enter key Menu button 3 or Reed switch 3 If the gas type displayed is not the required target gas select the down arrow key Menu button 2 or Reed switch 2 until the desired target gas is found Activate the enter key Menu button 3 or Reed switch 3 to select the specific gas to be detected Use the down arrow key Menu button 2 or Reed switch 2 then the enter key Menu button 3 or Reed switch 3 until the main menu is completely exited Refer to Millennium II Transmitter calibration procedure below and or Figure 5 before attempting calibration Millennium II Transmitter Normal Full Calibration Procedure If the sensor s target gas is setup correctly as desired follow the steps below for Full Calibration Normal Calibration Pro
24. losed packing list Inspect all components for any obvious damage such as broken or loose parts If you find any components missing or damaged notify your local Net Safety representative or the factory immediately 2 2 Mount Warning A Never install the sensor pointing upwards Recommendation The sensor should be installed pointing downwards The sensor is mounted directly to either transmitter enclosure or to a separation junction box enclosure through a 34 NPT conduit entry Both the transmitter and junction box enclosures have mounting holes to allow mounting to a wall or pole as desired Mounting kit hardware is required when mounting to a pole Contact your local Net Safety Representative for detailed information on mounting kits 2 3 Wiring 2 3 1 Field Installation Warning A Wiring codes and regulations may vary ATEX requires that supply connection wiring must be rated at least 5 C above the maximum ambient temperature of 85 C Wiring must comply with all applicable regulations relating to the installation of electrical equipment in a hazardous area and is the responsibility of the installer If in doubt consult a qualified official before wiring the system Guidelines When separating sensor from transmitter the use of shielded cable is highly recommended for sensor wiring to protect against interference caused by extraneous electrical or electromagnetic noise To meet IEC 61000 1 IEC 61000 4 EMI follow recommendations
25. mponents as they are susceptible to electrostatic discharge ESD Refer to Appendix A Electrostatic Sensitive Device ESD Connect sensor wires to the sensor terminals in the applicable transmitter Refer to the Table 3 for sensor terminal definitions Table 3 Sensor wires and Millennium II series Terminal definitions Sensor Wire White Marked VDC Sig A Sig B Sensor Terminals n Common Supply Function 10 5 32VDC Earth Ground Ground NOTE When separating sensor from transmitter using Net Safety separation kit refer to Multi purpose Junction Box Manual MAN 0081 for terminal designations Always ensure that the transmitter is supplying the required voltage to the sensor terminals inside junction box Refer to table above for sensor voltage requirements 2 3 3 Installation Checklist Prior to operation it is important to do the following e Ensure transmitter and sensor are properly and firmly mounted e Ensure that stopping plug is tightened to unused conduit entry e Ensure transmitter and sensor are not being obstructed transmitter and sensor are accessible and target gas is not inhibited from reaching sensor O Remove sensor red protective plastic cap cover from sensor mouth e If IP filters are being used fitted to sensor check for damage or debris Refer to specific IP filter instruction guide MAN 0109 e Ifcalibration cup splash guard is being used fitted to sensor ensure a snug fit e
26. mpted Recommendation Flow span gas at a rate of 0 5 liter per minute to the sensor for direct calibrations If sensor is remotely mounted and long tubing run is used increase gas flow rate e g 1 0 liter per minute to ensure tubing length does not affect calibration results 9 The display will show Spanning with the gas value LEL as the gas is detected 10 Remove the calibration gas when Remove Cal Gas is displayed 11 Cal Complete will be displayed when calibration is complete 12 Apply zero gas clean air to purge system Note Calibration gas can be air or nitrogen balanced Calibration instructions are also accessed using the HART Communicator with the single channel Millennium II Transmitter model Zero Calibration Option This option is useful if the sensor s zero point has drifted as a result of a change in the ambient conditions The Zero calibration option is selected if the sensor is only being zeroed this not a complete calibration The application of span gas is not required as only the sensor s zero point is adjusted Ensure that no contaminants are present if the surrounding air is to be used for Zeroing If Zero calibration is needed at step 7 above select Zero using menu button 3 or Reed Switch 3 See Figure 5 Calibration Flow chart for Millennium II Transmitter on next page for additional reference The chart shows calibration steps for channel 1 Calibration steps for channe
27. on cable choice and guidelines in the specific Millennium II series transmitter manual MAN 0082 or MAN 0076 In applications where the wiring is installed in conduit the conduit must not be used for wiring to other electrical equipment The maximum distance between the sensor and transmitter is limited by the resistance of the connecting wiring which is a function of the gauge of the wire being used Net Safety recommends that sensor separation distance should not be more than 2000 ft with 16 AWG wire See Appendix B for wire gauges and resistance values Earth Grounding An external ground is required One method is to connect the external ground to the grounding point on the enclosure See Figure 1 for grounding connection location Conduit Entry Sensors are mounted directly to transmitters via NPT conduit entries through which wires are connected to terminals Sensors may also be mounted remotely to transmitters using certified junction boxes with designated terminals Transmitter and junction box enclosures are shipped with one stopping plug fitted and tightened to a 34 NPT conduit entry MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 8 2 3 2 Sensor Wiring Warning A Do not open enclosures in a classified area Do not open when an explosive atmosphere may be present Ensure that power to the transmitter is switched off prior to connecting sensor wires Warning A Avoid touching electronic co
28. osures are offered in Aluminum AL and Stainless Steel SS Table 1 Millennium II enclosure and sensor dimensions A through H in Inches in and Millimeters mm Millennium IT transmitter A B C D E F G H enclosure in mm in mm in mm in mm in mm in mm in mm in mm Transmitter amp sensor AL 6 3 160 5 6 142 5 4 137 9 7 246 6 0 152 5 7 145 2 6 66 2 9 74 Transmitter amp sensor SS 5 9 150 5 1 130 46 117 89 226 6 0 152 5 8 147 2 6 66 2 9 74 Table 2 Millennium II Basic enclosure or junction box enclosure and sensor dimensions A through J in Inches in and Millimeters mm Millennium II Basic amp A B C D E F G H sensor in mm in mm in mm in mm in mm in mm in mm in mm Transmitter amp sensor AL 4 8 122 3 6 91 3 6 91 4 8 122 5 1 130 0 3 7 6 2 6 66 2 9 74 Transmitter amp sensor SS 4 7 119 3 6 91 3 6 91 4 7 119 5 1 130 03 7 6 2 6 66 2 9 74 Table 2 cont d Millennium II Basic amp I J sensor in mm in mm Transmitter amp sensor AL 3 0 76 90 229 Transmitter amp sensor SS 2 8
29. ts it can damage or destroy those components In some cases damage is instantaneous and an immediate malfunction occurs However symptoms are not always immediate performance may be marginal or seemingly normal for an indefinite period of time followed by a sudden failure To eliminate potential ESD damage review the following guidelines e Handle boards by metal shields taking care not to touch electronic components e Wear grounded wrist or foot straps ESD shoes or heel grounders to dissipate unwanted static energy e Prior to handling boards dispel any charge in your body or equipment e Ensure all components are transported and stored in static safe packaging e When returning boards carefully package in the original carton and static protective wrapping e Ensure ALL personnel are educated and trained in ESD Control Procedures In general exercise accepted and proven precautions normally observed when handling electrostatic sensitive devices A warning label is placed on the packaging identifying product using electrostatic sensitive semiconductor devices MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 22 Appendix B Resistance Table Resistance shown is one way This figure should be doubled when determining closed loop resistance MAN 0091 Rev 3 IR Combustible Sensor August 27 2010 Net Safety Monitoring Inc 23
Download Pdf Manuals
Related Search