MILLENNIUM Combustible Gas Detector
Contents
1. aei rere een ert dte eode 19 Review Relay Settings eese 19 Set Relay Option aceti eene 19 Steps in setting relay 5 8 20 Enter Restricted eene 20 3 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Extend Sensor Separation eee 21 Set Low Power Options Optional eee 21 Select Display Language eene 21 Modbus Options nre 21 Node Address tete reet eee 21 Baud Rate etae Reus 22 Alarms e dne eque RI TIRE e re UE en 22 Sensor Fault mtt eot ede t e ges 22 Sensor o erbe PER OR ER ERR ER 22 ue dn eel qe UR RE UA Rer elio 22 Sensor Life ini etc rt e cde e a s 22 Sensor 23 Resets ie aet REEL Eee 23 Man al Reset eren neta fete td eee eee 23 Remote Reset nest rea nie tnit otra 23 lim 23 Relays 23 MOO BUS xo ert eet 24 esie 24 SECTION 7 scicca aai 24 Periodic Response Check eene 24 Troubleshoot eet cose edie reet e eter ge ee em eren 24 Table 6 Troubleshooting guide 25 How to Return Equipment esee 262. Sensor Terminal A Le 150 Wire designation Modbus RTU White Wht B Terminal to PLC Red e Red Blank space 2 ES i Black e e Wht Shld Sensor uis Board Red Sensor Terminal Note the terminal designations on sensor terminal board i e Wht Red Blank space no connection Shld SC1100 Sensor 11 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SCI100 Net Safety Monitoring Inc Note If the 4 20 mA signal is not used connect a jumper between the 4 20 terminal and the COM terminal on the Terminal Board Relay Board Refer to Figure 5 Millennium Module Boards for relay board location and termination RS 485 Communication Connect devices in a chain via the Modbus terminals The last device in the chain requires end of line termination Refer to Modbus Termination Sensor Separation Since the sensor must be located where gas is likely to accumulate and the controller where it can be easily reached it is often necessary to separate the controller and sensor This is done with the aid of the Sensor Separation kit The Sensor Separation kit is composed of a Net Safety Multi purpose Junction Box and terminal strip For terminal definitions refer to the Multi purpose Junction Box manual MAN 0081 Shielded copper instrument wire minimum 18 AWG should be used for separations up to 75 feet Shielded copper instrument wire min
3. Access main menu amp options N A Switch on 10 0 RTUstat high alarm latched 0X0010 High alarm latched Memory error Red slow flash Memory error RTUstat lel 60 latched 0X0020 60 LEL latched RTUstat lel 100 latched 0x0040 100 LEL latched Sensor lead open Red slow flash Sensor Fault RTUstat powerUp 0x0080 Power up delay Excess drift 210 Red blip blink Neg drift RTUstat cal cycle 0X0100 Calibration cycle in progress Auto Zero set Apply clean air RTUstat_zeroing 0x0200 zeroing Apply cal gas Red fast flash Apply 50 span gas RTUstat apply span gas 0x0400 Apply span gas RTUstat_calibrating 0x0800 Calibrating Span is set remove gas Remove gas RTUstat_remove_gas 0x1000 Remove gas Calibration successful Cal complete RTUstat_cal_ complete 0x2000 Calibration complete Sensor guard Red Solid 100 LEL Gas present Red blip blink 1 100 full scale Failed calibration Red flash Fail cal RTUstat mem error 0X4000 Memory error Note Register 40001 LEL output read only Register 40002 RTU status read only Register 40101 Reset latched relays write MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SCI100 15 Net Safety Monitoring Inc Calibration Button Th
4. MILLENNIUM Combustible Gas Detector User Manual Models MLP A AR AD SC1100 MLP LP A AR ARS SC1100 ISO 9001 2000 Part Number MAN 0047 Rev 12 July 24 2009 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 errors 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 written 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 ISO 9001 2000 OMI REGISTERED
5. Warranty Net Safety Monitoring Inc warrants its sensors against defective parts and workmanship for a period of 24 months from date of purchase other electronic assemblies for 36 months from date of purchase 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 If you have any comments please contact us by phone at the address below or visit our web site and complete our on line customer survey www net safety com Contact Information Net Safety Monitoring Inc 2721 Hopewell Place NE Calgary AB Canada 7 7 Telephone 403 219 0688 Fax 403 219 0694 www net safety com E mail nsmsales net safety com Part Number MAN 0047 Rev 12 July 24 2009 Net Safety Monitoring Inc Table of Contents IntrOdUctioDiz is ecce petente FR Er Re 5 The ProduCtz reme rer trt e eene 5 E 5 The Controller Transmitter esses 5 The Mantal e ee e eder 5 SECTION PLAN ERE 6 1 1 LOCATE CONTROLLER SENSOR eese 6 SECTION 2 Install niri Ebr ee nS 8 35 Ed as dua 8 SECTION 3 WI1Ie nderit eb eren ede avos tee 9 Field Installation t tet 9 Seals UE IM
6. Spare 4 26 FACE ROTATION OPTION 2 27 5 27 AppendixA 52 48 rette nh e 29 Electrostatic Sensitive Device 50 29 AppendixB Resistance 30 Appendix Resistance Table 31 AppendixC Sensor 32 Controller 5 5 33 4 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Introduction The Millennium series is a part of Net Safety s innovation in a line of continuously evolving industrial gas detectors and sensors The microcontroller based system provides fast accurate and continuous monitoring of gases in extreme environments The Product The Sensor The SC1100 combustible gas sensor is a proven poison resistant pellistor sensor utilizing active and reference catalytic beads in a Wheatstone Bridge configuration Its integrated design ensures accurate and repeatable response in the most severe environments The Controller Transmitter The Millennium Controller has an Explosion Proof Housing rated Class 1 Division 1 Groups B C and D for hazardous applications It was designed for eithe
7. AWG 8 7000 7500 8000 9000 10000 Note Resistance shown is one way This figure should be doubled when determining closed loop resistance MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 31 Net Safety Monitoring Inc AppendixC Sensor Specifications Operating Temperature Range Sensor Specifications 40 C to 85 C 40F to 185F 0 1 Kg 0 2 Ib Weight Enclosure Material Powder Coated or Anodized Aluminum optional stainless steel 0 to 100 LEL of most hydrocarbons and hydrogen Range of Detection 3 LEL up to 50 LEL 5 LEL above 50 LEL Accuracy 30 seconds to T90 Response Time 10 seconds to T50 3 LEL 2 LEL Linearity Repeatability Certification CSA and NRTL C certified for hazardous locations Class 1 Division 1 Groups B C and D IEC Rating Ex d IIB H2 T5 Performance certified to CSA C22 2 No 152 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SCI100 32 Net Safety Monitoring Inc Controller Specifications Millennium Controller Specifications Millennium 4 20mA Analog Output Low Power board 4 20 mA Analog and Relay Output Solid State display dimmed 4 20mA with Relay Output module Low Power board 4 20 mA Analog Output disabled and Relay Output Solid State display dimmed RS 485 MODBUS RTU Digital Communications Power Consumption 12VDC
8. Correct power supply or wiring Correct input voltage to unit Contact factory e Faulty wiring power supply Correct wiring and power supply e Voltage is below operational voltage e Correct input voltage to unit Unit not powering up e Blown inline fuse e Replace inline fuse e Water invasion of electronics e Contact factory Failed electronic component s e Contact factory e Loose electronic boards e Tightly fit electronic boards Unit powers up without display Water invasion of electronics e Contact factory e Failed electronic component s Contact factory e Faulty power supply Replace or correct power supply Faulty sensor e Replace sensor Sensor fault displays e Faulty sensor wiring e Correct sensor wiring at controller e Faulty junction box wiring e Correct junction box wiring e Water invasion of electronics junction box e Contact factory e Failed electronic component s e Contact factory Unshielded cables used for wiring Use shielded cables for wiring Unstable 4 20 mA signal e Water invasion of electronics Contact factory Failed electronic component s e Contact factory e Current loop wiring is open e Close 4 20 mA signal loop e Missing or incorrect placement of current e Place current output jumper in correct output jumper position See Current Output Roe 20 Cupar e Current output is disabled by default for e Enable 4 20 mA signal under restr
9. Reed Switch to select The level selected will flash to confirm the selection MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Enter Restricted Menu The Restricted Menu allows you to select Sensor Separation Distance Extend Sensor Separation Low Power Options optional Press and hold the Calibration Button or hold the magnet to the Reed Switch to enter the Main Menu wait for the countdown from 10 to 0 to end When Enter restricted menu YES displays press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection When Are you sure YES displays press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection 20 Net Safety Monitoring Inc Extend Sensor Separation 1 Enter the Restricted Menu Refer to Enter Restricted Menu 2 When Extend Sensor Separation Y ES displays press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection 3 Sensor Separation 75 to 150 feet YES displays first then Sensor Separation 0 to 75 feet YES Press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection Note The sensor separation distance as set for this option must be the same as the physical length of sensor wiring within the range 0 to 75 ft or 75 to 150ft Warning AN To avoid damaging the sensor the factory default of 0 75 fe
10. after the PCB Assembly has been removed 8 Rotate the PCB Assembly to desired position and line up the standoffs with the mounting holes uer 27 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SCI100 Net Safety Monitoring Inc 9 Insert standoffs in the appropriate horizontal or vertical Warning AN See Appendix Electrostatic Sensitive Device mounting holes 10 Tighten standoffs to secure PCB Assembly 11 Replace faceplate and tighten Pull Here knobs 12 Return power to detector and replace housing cover ESD for handling electronic components See Figure 14 PCB Assembly Rotated Figure 14 PCB Assembly Rotated Vertical mounting holes Insert standoffs Horizontal mounting holes Insert standoffs Ribbon cable Standoffs PCB Assembly Faceplate MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 28 Net Safety Monitoring Inc Append ixA A warning label is placed on the packaging identifying product using electrostatic sensitive semiconductor devices Electrostatic Sensitive Device ESD 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 components it can damage or destroy those com
11. 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 Waybills for shipments from outside Canada must state Equipment being returned for repair charges to be billed to the sender Also please 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 All Equipment must be Shipped prepaid Collect shipments will not be accepted Pack items to protect them from damage and use anti static bags or aluminium backed cardboard as protection from electrostatic discharge Spare Parts Accessories Table 7 Part numbering Net Safety Part Number Description Replacement Catalytic Bead SC1100 R combustible sensor Replacement catalytic bead sensor SC1100 SS i W Stainless Steel housing PCBA 0252E Terminal Connector Board Aluminum or Stainless Steel JB MPG A S Junction box FRO 001 90 Degrees Rotation Plate Transmitter for MLP XX ML7 TX200 SC1100 series c w display Terminal and Input Board 26 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Table 7 Part numbering cont d Transmitter for MLP LP XX ML7 TX400 SC1100 series c w Display Terminal and Input Board ML7 R
12. be used Sensor Board Modbus Terminals 10 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Sensor and Controller Table 2 Controller Terminal connection Power Terminals Controller Terminal Board RST Remote Reset Warning AN Power to the unit must be OFF before wiring Power Connections Also ensure area is de classified before removing housing cover 24VDC Power COM Power 4 20 Current loop output ISO 24V isolated 4 20 Note The Sensor may be factory installed to the Controller If so you need only connect the Power Terminals 1 Remove the Controller s Housing Cover 2 Connect the sensor to the Sensor Terminals if necessary and the Power Terminals to power and output signal wires Turn controller on put ON OFF Switch in position Replace Controller s Housing cover Apply power to unit 5 Ensure display reads Start Delay Status LED is Red Slow Flash and current output displays 3 0 mA This is the start up Figure 6 Wiring Controller and Sensor B delay sequence which will last approximately 90 seconds RST Refer to Tables land 2 along with Figure 6 for wiring 24VDC Terminal H Power 1 Table 1 Sensor Terminal connection Board j 4 20 Sensor Terminals e
13. danger signals when high signal levels occur MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Mount The controller should be mounted near eye level and be easily accessible for calibration and maintenance purposes The sensor should be placed where gas is likely to accumulate Ensure all devices are securely mounted taking into consideration all requirements The maximum distance between sensor and controller is limited by the resistance of the connecting wiring which is a function of the gauge wire being used See Appendix B When developing a RS 485 chain of devices the last device in the chain requires end of line termination RS 485 connection 2 wire multipoint serial line If necessary use the Face Rotation Option to mount the Seal Millennium Controller at a different orientation Refer to The use of seals is recommended to further protect the system Rotation Option for detailed instructions against any unwanted water ingression and equipment should be SECTION 3 Wire Field Installation Warning AN Wiring codes and regulations may vary Wiring must comply with 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 See some wiring considerations below e Ifthe 4 20 mA signal is not used connect a jumper bet
14. found on the faceplate the housing cover must be removed to access e Magnetic Reed Switch a magnet must be used to activate Main Menu Functionality 1 Ensure that the controller has been turned on and no fault is present 2 Hold the magnet against the Reed Switch or press and hold the Calibration Button until the message Switch On displays and the countdown 10 to 0 finishes 3 Anoption will scroll across the display followed by the prompt YES 4 To select an option momentarily place the magnet to the Reed Switch or press the Calibration Button at the YES prompt 5 If you do not wish to select that option wait until the next option appears and then select YES 6 Aselection is acknowledged with a flashing YES 7 If no option is selected the controller returns to 00 LEL normal operation SECTION 5 Calibrate Calibration Procedure Warning AN The calibration procedure requires about 5 minutes to complete If gas is not applied at the appropriate time a calibration failure may occur Refer to Calibration Failure for specific information For accurate performance the Millennium should be calibrated using 50 span of the specific gas of concern The concentration of gas corresponding to 100 of full scale is converted to a linear 4 to 20 mA output signal which can be powered from the primary dc supply of the instrument Power up the unit for at least 4 hours BEFORE the first calibration The following cal
15. the analog output switches to 2 5 mA due to drift the sensor will still respond and transmit reasonable analog output signals if gas is present Gas Present When gas is present 1 to 100 Full Scale will display the analog output switches between 4 and 20 mA and the Status LED blips blinks Red Sensor Life Depending on various factors sensor response may slowly deteriorate over a period of years If calibration becomes impossible for any reason the display will show Fail Cal the analog output will switch repeatedly between 3 0 mA and 3 3 mA and the Status LED alternates Red and Green flashes Refer to Sensor Life Check if calibrating for methane gas target gas 22 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Sensor Guard SensorGuard is a proprietary firmware feature that protects the pellistor sensor from the damage and or response shift commonly caused by exposure to high concentrations of combustible gas With this feature repeated or lengthy exposure to high gas concentrations has negligible effect on the sensor s performance Sensor life is prolonged and calibration frequency is reduced This does not eliminate the necessity of periodic sensor response checks which should be performed as part of an effective maintenance schedule If a gas signal exceeds 10095 LEL the analog output will latch at 20 mA the Status LED turns solid red and the display shows 100 LE
16. using Non Isolated configuration the jumper must remain in the default position Pin 2 and Pin 3 jumpered The jumper is placed over Pinl and Pin 2 for current sink using Non Isolated configuration For Isolated configuration using a separate power supply to isolate the current loop the jumper must be placed over Pin 1 and Pin 2 for source and sink See Figure 7 and Figure 8 Note the Jumper position for each configuration Figure 8 Current Source and Sink Drawing Detector Non Isolated configuration Source Detector Non lsolated configuration Sink PLC Panel Transmitter VDC 24VDC 4 4 20 ISO Isolated amp HA Non isolated jumper pins Isolated amp Non isolated jumper pins 1 24VDC 24 VDQ Isolated amp Non isolated jumper pins Isolated amp Non isolated jumper pins Remote Reset If the Millennium relays are set for latching a remote reset can be done to reset the relays This is done with a normally open Push Button Switch connected between the RST and COM terminals on the Terminal Board See Figure 9 Figure 9 Remote Reset Terminal Board Power Terminal Strip Modbus Termination Devices can be networked in a daisy chain The device located at the end of the chain requires end of line termination Place both jumpers over the pins as shown in the Figure 10 below Figure 10 Modbus Termin
17. AR ARS SC1100 Net Safety Monitoring Inc Abort Calibration The Calibration procedure can be aborted When the display shows Apply 50 Span Gas press and hold the Reed Switch or Calibration Button until the countdown 10 0 Abort Calibration completes After which the display shows Cal Complete then returns to 00 LEL Sensor Life Check Units calibrated for methane only indicate life expectancy of the sensor Once calibration is complete one of the following messages may display if the sensor needs replacing Sensor Near End of Life indicates the sensor will reach end of life before the next calibration can be completed Replace sensor as soon as possible Press the Calibration Button or use the Reed Switch to clear this message End of Sensor Life Replace Sensor indicates sensor has reached end of life and needs to be replaced immediately Press the Calibration Button or use the Reed Switch to clear this message The unit will remain in Fault Mode until the sensor is replaced Calibration Failure If the calibration procedure fails the display shows Fail Cal the Status LED alternates Red Green flashes and the analog output changes back and forth from 3 0 to 3 3 mA The unit remains in a failed state until a Manual Reset After the Manual Reset the unit will return to normal operation based on previous calibration values SECTION 6 Monitor Review Relay Settings This is a read only mode changes cannot be m
18. Conduit to Transmitter Apply Calibration Gas Transmitter gt CCS 1 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Figure 2 below shows the Controller with sensor and the Multipurpose Junction box with sensor attached Figure 2 Dimensional Drawing a 560 _ 5 68 _ 142 2 mm 144 3 mm 5 31 4 06 Controller with sensor 134 9 mm 103 1 mm 7 14 181 4 mm 1 68 Lacs 9 437 42 7 mm 138 0 mm 4 82 6 56 122 4 mm 166 6 mm Multi purpose Junction box with sensor Te mm i 73 4 mm MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc SECTION 2 Install Unpack Carefully remove all components from the packaging Check components against the enclosed packing list and inspect all components for obvious damage such as broken or loose parts If you find any components missing or damaged notify the representative or Net Safety Monitoring immediately Figure 3 Components Controller Base Housing Millennium Faceplate Controller Housing Ribbon connecting Exiernab fiquipnient cover faceplate controller It is necessary that reliable monitoring and indicating devices or systems be connected to the detector These devices must be designed to produce clear visual and audible
19. E 9 Connecting 0422 00 00 0010000000000000000000004 10 Board Assembly 10 Sensor and Controller 11 teretes et er eph ids 12 RS 485 Communication sese 12 Sensor Separation eeu RE sieeve 12 CURRENT OUTPUT bes 12 NON ISOLATED AND ISOLATED POWER CONFIGURATIONS 13 Remote Reset Rr nr ciui 13 Modbus 13 SECTION 4 OPERATE ertt et rtt testes 14 Calibration BUTTON nennen 16 Magnetic Reed 5 8 16 Power e haa eee tei three Deest dives 16 Current Loop Measurement Test Jacks 16 Status ono SAEPE RR ere ng ci de 16 The Mail MENU aces etic erred 17 Main Menu Functionality esses 17 SECTION 5 Calibrate eterne da rar rode 17 Calibration Procedure essere 17 Steps in Calibration Procedure sess 18 Remote Calibration aa 18 Abort Calibratiori tpe pe tete es 19 Sensor Life Check eerie xni 19 Sensor Near End of Life sess 19 End of Sensor Life Replace 19 Calibration Failure eese 19 SECTION 6
20. L At this point power to the Sensor module will be terminated Simultaneously the SensorGuard feature is activated to protect the sensor from damage that can be caused by the oxidation of high gas concentrations This protective feature extends the useful lifetime of the sensor and reduces or eliminates disruption of its calibration As an extra safety precaution the system should be checked for accuracy after such over range exposure and if necessary re calibrated The system will need to be reset to clear the latched output Refer to Reset Flooding of pellistor sensors with high percentage levels of combustible gas results in a rapid response followed by a rapid return to zero which can be misleading and dangerous CSA and ISA require that a reading of at least 60 LEL is reached under such conditions To be safe alarm signals should latch at 60 LEL and require a manual reset action to restore normal operation SensorGuard includes a unique safety feature where high alarm relays and the analog output latch when 60 LEL is exceeded SensorGuard includes an analog ratchet so that LEL values above 60 are recorded and latched until reset manually This encourages the acknowledgement and investigation of all high readings Warning Any type of gas sensor is susceptible to damage when exposed to high levels of gas therefore check the sensor for accurate response and if necessary perform a calibration or replace the sensor after a
21. Maximum 1 88 W Maximum 1 68 W Maximum 2 42 W Maximum 1 38 W Maximum 2 18 W Power Consumption 12V de 50 span Maximum 2 12 W Maximum 1 72 W Maximum 2 58 W Maximum 1 41 W Maximum 2 23 W Power Consumption 24VDC Maximum 2 09 W Maximum 1 85 W Maximum 2 54 W Maximum 1 56 W Maximum 2 33 W Power Consumption 24V dc 50 span Maximum 2 26 W Maximum 1 90 W Maximum 2 76 W Maximum 1 59 W Maximum 2 38 W In Rush Current 5 0A 10ps 40us 5 0 10us 40us 5 3A 10us 40us 4 6A 10ps 40us 4 8A 10us 40us 24VDC 0 080A after 2ms 0 040A after 2ms 0 120A after 2ms 0 32A after 2ms 0 112A after 2ms Operating voltage 10 5 to 32VDC Operating temp range Operational 50 C to 85 C 58F to 185F Certified 40 C to 85 C 40F to 185F Humidity Range 0 to 100 Relative humidity non condensing Enclosure material Powder coated Copper Free Cast Aluminum Weight 3 2 kg 7 0 Ib Certifications CSA and NRTL C certified for hazardous locations Class 1 Divisionl Groups and D Temperature Code T6 IEC Rating Ex T6 Class 1 Zone 1 Group IIB T6 Maximum operating ambient of 85 Enclosure Type 4X Note Electronics only CSA and NRTL C certified for hazardous locations Class 1 Division 2 Groups and D 4 to 20 mA Into a maximum loop impedance of 800 Ohms 32 VDC or 150 Ohms at 10 5 VDC Isolated or non iso
22. New Baud Rate YES and press the Calibration Button or use the Reed Switch to select 4 Theavailable baud rates will display 2400s 4800s 9600s 14 4s 19 2s 28 8s 38 4s 57 6s 5 Use the Calibration Button or use the Reed Switch to select required baud rate when it displays 6 The flashing YES confirms the selection Alarms Sensor Fault Warning AN The fault detection circuitry does not monitor the operation of external response equipment or the external wiring to these devices It is important that these devices be checked periodically to ensure they are operational Self testing circuitry continuously checks for problems that could prevent proper response When power is applied the microcontroller automatically tests the system to ensure that it is functioning properly During normal operation it continuously monitors the signal from the internal sensor source In addition a watchdog timer is maintained to ensure the program is running correctly When a system fault is detected the Status LED flashes Slow Red the display shows Sensor Fault and the analog output changes to 2 5 mA Sensor Drift It is a normal characteristic of gas sensors to exhibit a slow drift from zero When the amount of drift exceeds 10 since the last calibration the analog output switches to 2 5 mA the Status LED Blip blink Red and the display shows Neg Drift This message will remain until a Manual Reset and the system is re calibrated When
23. S303 Solid State Relay Board for MLP series MLP LP ARS Low Powered with Solid State Low High and Fault Relays w o sensor MLP A Analog 4 20 mA output isolated non isolated only w o sensor ML7 RL305 Mechanical Relay Board for MLP series ML7 OP100 Optional Board c w connectors for use with ML7 303 or ML7 305 Relay Boards ML7 ORL305 Electromechanical Relay Board ML7 RL305 c w Option Board ML7 OP100 ML7 ORS303 Solid State Relay Board ML7 RS303 c w Option Board ML7 OP100 ML7 MB100 ML7 MODBUS Output Board for MLP series Magnet 1 Magnet assembly CCS 1 Calibration Cup FACE ROTATION OPTION In some applications it is necessary for the Millennium Controller to be mounted in a non standard orientation To accommodate such installations and ensure that the display will appear at the correct angle for viewing the PCB Assembly can be rotated inside the Controller s housing Figure 13 Non standard Orientation Note Ensure orientation allows for connections and excess wire within controller Rotate PCB Assembly Warning AN Ensure area is declassified Remove the Controller s Housing Cover Turn the power to the detector off Unscrew both the knobs marked Pull Here Lift Controller faceplate from housing and allow to hang from ribbon cable 5 Unscrew the two metal standoffs 6 Carefully remove the PCB Assembly from the housing 7 The Rotator plate is secured to the bottom of the housing and is accessible
24. ade 1 Press and hold the Calibration Button or hold the magnet to the Reed Switch to enter the Main Menu wait for the countdown from 10 to 0 to end 2 When Review Relay Settings displays press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection 3 The Fault Alarm is fixed Energized Non Latching and displays first then the Low Alarm level coil and latch status display followed by the High Alarm level coil and latch status 4 Atthis point the option to Set Relay Options YES is displayed Set Relay Option Use to set the alarm level coil status and latch status for the Low and High Alarm relays Fault Alarm is fixed The following table describes the default settings for the relays Note The High and Low relay configurations are set up independent of each other 19 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Table 5 Default Relay Settings 3 Millennium Alarm levels Coil Status 4 model 5 3 18 2 6 2 E 2 MLP Fixed as T A AR AD Energized 7 SC1100 and Non and MLP latching LP A AR ARS SC1100 8 The message Coil Status displays The display then shows Energized YES and then De Energized YES Press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection If no selection is made Coil Status option is repeate
25. ation Jumpers Modbus Board 13 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc SECTION 4 OPERATE Figure 11 Controller Functionality Magnetic Reed Switch provides non intrusive access for programming zeroing and resetting Place magnet against housing as indicated for less than one second to initiate a basic system reset clear latched alarm and make selections Place magnet against housing as indicated and hold to access select view settings and zero ON OFF Switch used to turn controller on and off Housing must be removed to access MAN 0047 Rev 12 MLP A AR AD Scrolling 8 character display provides various status messages and prompts Refer to Status LED s Display Messages and Current Loop Pull Here knob unscrew the two screws and pull to remove faceplate Removal allows access to terminal boards The face plate remains attached to the ribbon cable Status Light flashes Red or Green to indicate status of unit Refer to Status LEDs Display Messages for detailed explanation Status Red Slow Flash Gas present Flast flash Calor Fault Solid Overrange Green Short Blips Normal operation MILLENNIUM Calibration Setup Hold magnet until countdown is zero 10 sec Follow instruction on display Current O P Check Pull Here Colnect current probgs t meter jacks and pad
26. cessary to perform a calibration For example when 50 of full scale is applied the response is expected to be between 11 5 mA 4796 of full scale and 12 5 mA 539 of full scale An additional consideration is the accuracy and tolerance of the calibration gas which may be or a few percent If the calibration gas is or 1096 of full scale then the reading may be from 10 7 mA 42 of full scale to 13 3 mA 58 of full scale Troubleshoot Response to the input should be checked and if necessary calibration should be performed whenever any of the following occur Refer to Calibration Procedure for calibration instructions e Excess negative drift is indicated by 2 5 mA current output e Sensor or transmitter is connected or disconnected e Long term or high concentration exposure to gas See Table 6 Troubleshooting guide for assistance in troubleshooting Also refer to How to Return Equipment if returning equipment Repairs to Net Safety products should not be performed in the field Repairs to faulty or damaged equipment should only be performed at the factory otherwise warranty on the product will be voided 24 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Table 6 Troubleshooting guide Condition Intermittent power Possible Cause Faulty power supply or wiring Voltage is below operational voltage Failed electronic component s Possible Solution
27. d The message Latch Status displays The display then shows Latching YES and then Non Latching YES Press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection If no selection is made Latch Status option is repeated The message Set High displays The High Alarm level cannot be set to a value lower than the Low Alarm level as set in Step 2 nor higher than the maximum of 55 LEL The High Alarm level is displayed in increments of 5 greater than the Low Alarm level as set in Step 2 Repeat Steps 3 through 6 to complete the High Alarm level coil and latch status settings Note If no selection is made a 5 minute timer expires in which case the unit returns to normal operation Steps in setting relay options There are two settings for Relay Options Low and High The Fault Relay is fixed as Energized Non latching and cannot be changed The low alarm level coil energization and latch status are set first high alarm level coil energization and latch status are then set All ranges are in LEL Low and High alarm levels will be displayed if reached 1 When Set Relay Options YES displays press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection The message Set 2 Low displays Low Alarm set points are then displayed in increments of 5 0 to 55 2 When the required level displays press the Calibration 3 Button or use the
28. d or normally de energized operation and latching or non latching An optional low power Solid State relay board comes with Form A contacts rated 2 5 Amps at 60 VAC DC and selectable energized de energized latching non latching configurable low and high alarms Fault relay is factory set as energized non latching and cannot be modified Modbus Digital RS 485 Modbus RTU protocol is used Register 40001 LEL output read only Register 40002 Status read only Register 40101 Reset latched alarms write Note Many registers are used by the controller Please do not write outside the registers Current A 4 20 mA dc current output is used to transmit the alarm status and fault codes to other devices This output can be wired for isolated or non isolated operation A 4 0 mA output indicates normal operation gt 4 0 lt 20 0 mA output indicates the presence of gas Current output of 2 5 mA indicates the presence of a system fault SECTION 7 Maintain Periodic Response Check We recommend the Millennium be verified or calibrated every 3 months A typical response check involves the application of calibration gas to the sensor then the observation of the response LEDs Analog output display and external monitoring equipment Be sure to prevent unwanted response of external monitoring devices and equipment during this procedure If the Millennium response to calibration gas is within its specified accuracy then it 1s not ne
29. e Calibration Button provides access to the Millennium s Main Menu which in turn allows calibration and options to be reviewed set Refer to Figure 11 Controller Functionality for more information e Press and hold the Calibration Button to calibrate and access Main Menu Briefly press to make a selection select YES Warning AN Do not open the controller in a classified area Do not open when an explosive atmosphere may be present Do not power up the system with the housing cover removed unless the area has been de classified Magnetic Reed Switch The Magnetic Reed Switch is provided to avoid opening the housing in an environment where gas may be present The Magnetic Reed Switch functions in the same manner as the Calibration Button but in a non intrusive manner Refer to Figure 11 Controller Functionality for more information When using the magnet Place and hold the magnet to the Controller s Housing 10 o clock position to calibrate and access Main Menu Briefly place the magnet to the Controller s Housing 10 o clock position to make a selection select YES Power Up Turn the power switch on A 90 second warm up routine will begin The display reads Start Delay Millennium Net Safety the Status LED will flash slow red and current output displays 3 0 mA When power is applied the system is automatically tested to ensure proper functionality After warm up the controller will enter no
30. et must be used for non separation If the sensor and controller are separated by a distance greater than 75 feet 75 150 feet must be entering in the menu under Extend Sensor Separation Set Low Power Options Optional Some Millennium versions have two optional low power features to reduce overall power consumption Use this option to Dim the LED display display will still be visible in most lighting conditions default setting e Disable the 4 to 20 mA analog output for applications requiring only relay output default setting 1 Enter the Restricted Menu Refer to Enter Restricted Menu 2 When Set Low Power Options YES displays press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection 3 When Lower Display Brightness YES displays press the Calibration Button or use the Reed Switch to select or wait until Display Full Brightness YES displays then select The flashing YES confirms the selection 4 When Disable 4 20mA O P YES displays press the Calibration Button or use the Reed Switch to select or wait until Enable 4 20mA O P YES displays then select The flashing YES confirms the selection Select Display Language Display language selection appears after the Restricted Menu 1 After the Restricted Menu the option Select Display Language YES displays Press the Calibration Button or use the Reed Switch to select The flashing YES confirms the se
31. ibration procedure should be followed to ensure an accurate correlation between the 4 to 20 mA output signal and the gas concentration Warning AN To compensate for distance when remotely calibrating sensor wired for separation decrease the tubing diameter or increase the calibration gas flow rate between canister and sensor Always confirm calibration by applying gas directly at the sensor 17 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Figure 12 Calibration Procedure Calibrate i sensor Yes Display Remove Gas Methane Apply clean Air Apply 50 Cal Complete i Span Gas Place system into Bypass if necessa Select Yes for methane or ignore Action Select Yes Apply clean Air Apply specific Calibrating Remove Gas Apply clean air to purge the system LEL gas message if target LEL gas is not Stop Bypass if methane necessary Steps in Calibration Procedure Refer to Remote Calibration if remote calibration 15 to be performed 6 When Apply Clean Air displays apply clean air 7 Wait for Apply 50 Span Gas to display and apply specific LEL gas at a rate of 0 5 litres per minute use 1 0 litre per minute for remote calibration 8 The display will show Calibrating as gas 15 detected 9 Remove span gas when the message Remove Gas displays 1 Confirm successful power up of controller LED Green Blip blink every 2 second
32. icted Low powered Millennium units menu option e Failed electronic component s e Contact factory e Incorrect relay settings in menu e Correct relay settings in menu Undesirable change in relay state e Voltage applied to relay contacts outside Correct voltage applied to relay dry contacts relay ratings See Appendix for specification e Failed electronic component s e Contact factory e Voltage is below operational voltage e Correct input voltage to unit Chattering relays Mechanical relay units Loose electronic boards or loose wiring e Tightly fit electronic boards or fit wires e Failed electronic component s e Contact factory MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 25 Net Safety Monitoring Inc 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 2 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 company name contact name and telephone number 4 A Purchase Order from your company
33. imum 16 AWG should be used for separations up to 150 feet Note Factory default for Sensor Separation 1s 0 75 feet The actual physical distance between the sensor and controller must be defined See Extend Sensor Separation for instructions on setting the sensor separation distance Note If the 4 20 mA signal is not being used connect a jumper between the 4 20 mA terminal and the COM terminal on the Terminal Board CURRENT OUTPUT To set the current output simply move the jumper located on the Terminal Board near the power terminals to the isolated or non isolated current position Refer to Figure 7 Note Unless otherwise specified all models ship with this jumper in the non isolated current position Pin 2 and Pin 3 jumpered Refer to Figure 7 Figure 7 Jumper Position e Jumper positions to set power source for current output Power Terminals Isolated amp Non Isolated Current Jumper Place Jumper shorting jack over Pin 3 and Pin 2 default position for Non Isolated configuration source Place Terminal Board Jumper over Pin 1 and Pin 2 for remaining configurations See Figure 8 Termination Jumper Non functional in this application and can be Sensor Board placed in any position or removed Sensor Terminals 12 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc NON ISOLATED AND ISOLATED POWER CONFIGURATIONS For current source
34. ity such as trenches where heavy gases may accumulate or peaks where light gases may accumulate 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 The two most common installations options are as follows Option 1 Locate the sensor separate from the controller using a Certified Junction Box If the Net Safety Multi purpose Junction Box is being used refer to MAN 0081 for terminal designations The controller is located near eye level Conduit is run from the controller to the sensor A Calibration Cup CCS 1 can be attached to the sensor Tubing can be run from the CCS 1 to a convenient location accessible for calibration gas to be injected Option 2 The sensor is attached directly to the controller See Wiring Controller and Sensor for details The CCS 1 and tubing is used to facilitate calibration The Calibration Cup CCS 1 allows for tubing to be affixed to a sensor mounted in remote locations The tubing s directed to a level usually close to the controller for easy injection of calibration gas The calibration cup can also act as a splash guard protecting sensors mounted low to the ground Figure 1 Locate Sensor Controller Separated Junction Box Side Calibration Fitting Sensor separated Calibration Cup Tubing for Calibration Gas
35. lated loop supply Premium version Form C contacts rated 5 Amps at 30 VDC 250 VAC Selectable energized de energized latching non latching configurable low and high alarms Fault relay is factory set as energized non latching and cannot be modified Low Power Version Form A contacts rated 2 5 Amps at 60 VAC DC Selectable energized de energized latching non S latching configurable low and high alarms Fault relay is factory set as energized non latching and cannot be modified Digital RS 485 Modbus RTU Protocol 33 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc Making Safety Work Tollfree in Western Canada 1 888 388 1592 microwatt com mwsales microwatt com Net Safety Monitoring Inc 2721 Hopewell Place NE Calgary AB Canada T1Y 7 7 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 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 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 MONITORING INC 34
36. lection 2 When the required language displays English Espanol Francais press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection Note The factory default language 1s English Modbus Options Digital RS 485 Modbus RTU protocol is used There are two Modbus options Node Address and Baud Rate Node Address Each device connected to the chain must be assigned a unique node address The last number in the address is selected first 1 When Modbus Setup YES displays press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection 2 Thecurrent node address will display Node 000 3 Wait for the prompt New Address YES and press the Calibration Button or use the Reed Switch to select 21 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc 4 Use the Calibration Button or Reed Switch to select each of three numbers in the new address select the last number in the address first 0 thru 9 select the next number in the address 0 thru 9 select the first number in the address last i e 0 1 2 Baud Rate The transmission speed must be defined 1 When Modbus Setup YES displays press the Calibration Button or use the Reed Switch to select The flashing YES confirms the selection 2 After setting the Node Address the current Baud Rate will display XX X BPS 3 Wait for the prompt
37. mA oJ Setup Button provides intrusive access for programming zeroing and resetting Push for less than one second to initiate a basic system reset clear a latched alarm and make selection Push and hold to program view current settings and zero Pull Here knob Current Output Check test jacks to facilitate current loop measurements without breaking external current loop To take current loop measurements ensure wiring is correct and current loop is closed and then follow steps below Set meter on mA scale and insert meter leads into test Jacks Set external devices to bypass if necessary to avoid unwanted alarm response Perform simulated tests to check output Remove meter leads from test jacks and return external devices to normal 14 SC1100 amp MLP LP A AR ARS SCI1100 Net Safety Monitoring Inc Table 3 Status LEDs Display messages and current loop Current output Calibrate sensor Status LED Red or Green N A Display N A Table 4 RTU Status register 40002 Read only binary RTU Status Registers and meaning RTUstat_fault 0x0001 Fault sensor Normal operation Green blip blink 00 LEL RTUstat_low_alarm 0X0002 Low alarm tripped Start up delay 90 seconds Red Slow flash Start delay RTUstat_high alarm 0X0004 High alarm tripped RTUstat_low_alarm_latched 0X0008 Low alarm latched
38. ny high level alarm Reset Manual Reset A Manual Reset is required after a calibration failure or to clear a latched relay alarm Simply place and hold the magnet against the Reed Switch or press and hold the Calibration Button for 3 5 seconds The unit will return to normal operation using previous calibration values Remote Reset If the Relay Option is set to Latching refer to Steps in Setting Relay Options and an open Push Button Switch is connected between the RST terminal and the COM terminal on the Terminal Board Remote Reset is possible Also refer to Figure 9 Remote Reset Outputs Relays Optional Note The Fault relay output is not used to activate an automatic shut down procedure The fault output indicates a potential problem with the controller Standard Electro mechanical relay outputs have Form C SPDT contacts rated 5 Amps at 30 V dc 250 V ac Three relay outputs are available one for Fault one for Low alarm and one for High alarm 23 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc relays have normally open and normally closed contacts available at the output terminals The Fault relay is set for normally energized operation and is non latching If a system fault is detected the Fault relay becomes de energized The Fault relay is factory set and cannot be altered The Low alarm and High alarm relays can be selected for either normally energize
39. ponents 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 Handle boards by metal shields taking care not to touch electronic components e Wear grounded wrist or foot straps or 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 components are transported and stored in static safe packaging Whenreturning boards carefully package in the original carton and static protective wrapping e Ensure ALL personnel are educated and trained ESD Control Procedures In general exercise accepted and proven precautions normally observed when handling electrostatic sensitive devices MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc AppendixB Resistance Table Distance Feet 20 AWG 18 AWG 16 AWG 14 AWG 12 100 AWG 10 AWG 8 200 300 400 500 600 700 800 900 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 30 Appendix B Resistance Table cont d Distance Feet AWG 20 AWG 18 AWG 16 AWG 14 AWG 12 AWG 10 6500
40. r a 1 man intrusive calibration or 2 man non intrusive calibration The Controller has convenient user interface functionality to make installation operation and maintenance easy The Manual The manual has been designed to make installation of the Millennium product easy To ensure proper installation follow the steps outlined in the following pages If you encounter problems during operation consult the troubleshooting section or contact your sales representative SECTION 1 PLAN SECTION 2 7 INSTALL SECTION 3 WIRE SECTION 4 OPERATE SECTION 5 CALIBRATE SECTION 6 MONITOR SECTION 7 MAINTAIN MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SC1100 Net Safety Monitoring Inc SECTION 1 PLAN 1 1 LOCATE CONTROLLER SENSOR Prior to the installation process a location plan for placing the controller and sensor should be developed Although there are no absolute rules determining the quantity and location of a sensor or controller the following points should be considered when planning the installation e Locate the controller where it will be accessible and visible e Carefully locate sensor in an area where gases may potentially accumulate e Use redundant systems to enhance protection and reliability e Light gases tend to rise heavy gases tend to accumulate in low areas e Consider the air movement patterns within the facility e Consider the construction of the facil
41. rmal operation the display reads 00 LEL Status LED will blip blink Green and analog output will change to 4 0 mA Current Loop Measurement Test Jacks Use a standard meter to measure current loop during various states The Controller s Housing cover must be removed to access the Test Jacks Refer to Table 3 Status LEDs Display Messages and Current Loop for a detailed list and Figure 11 Controller Functionality for more information Status LED The Status LED will remain solid flash blip and or blink either Red or Green to indicate various states Refer to Table 3 Status LEDs Display Message 16 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SCI100 Net Safety Monitoring Inc The Main Menu The Main Menu provides access to various functional settings and viewing of current settings e Calibrate Sensor e Review Relay Settings optional Review the current Fault Low and High alarm settings This is a read only option e Set Relay Options optional Set the Low and High alarm settings e Restricted Menu Set the sensor separation distance and choose low power options e Select a display language English Spanish or French e Select Modbus Options option only available if Modbus board is used i e digital model Note The current output will drop to 3 0 mA while accessing the Main menu Accessing the Main Menu There are two ways to access the Main Menu e Calibration Button
42. s no fault indicated 2 Flow certified Clean AIR at a rate of 0 5 litres per minute through the calibration cup for 1 minute to ensure clean air environment 1 3 Press and hold the Calibration Button or use the Reed Switch Status LED Green solid and 3 6 mA output PREMO to access the Main Menu and wait for countdown 10 0 to 10 The message Cal Complete will display when calibration is complete completed 4 When Calibrate Sensor YES displays use the Calibration 11 Apply clean air again to purge system Button or Reed Switch to select YES Selection will be Note Always apply test gas after calibration to verify operation confirmed by a flashing YES 5 The prompt Methane YES will display If calibrating for Remote Calibration methane use the Calibration Button or Reed Switch to select otherwise for another target LEL gas ignore and wait for next prompt The preferred tubing has an inside diameter of 3 16 stainless steel tubing is excellent plastic tubing is good Within 10ft 35m a flow rate of 0 5 litre per minute can be used but 1 0 litre per minute is recommended Always use 1 0 litre per minute for distances calibration tube lengths between10ft to 100ft Contact Net Safety if a remote calibration distance is greater than 100 ft 30 m is required Note The purpose of the prompt Methane YES is for activating the sensor life feature for methane gas only 18 MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A
43. tions alternate changes in temperature and barometric pressure can cause breathing which allows moist air to enter and circulate inside the Net Safety Monitoring Inc conduit Joints in the conduit system are seldom tight enough to prevent this breathing Connecting Wires 1 Usea small screw driver to gently press down and hold the Note Boards are susceptible to ESD Refer to Appendix A Electrostatic Sensitive Device ESD Figure 5 Millennium Module Boards spring connector open 2 Insert appropriate wire into open connector hole 3 Release screw driver to secure wire Figure 4 Securing wires Solid State Relay Board Fault dis Option Board Low F B dile High Ho Terminal Board gt SO Electromechanical Relay Board FNO 2 Normally open FCOM 3 Common FNC E Normally closed LNO Normally open LCOM 3 Common LNC Normally closed HNO P Normally open HCOM Common HNC Normally closed Board Assembly There are three different user allowed removable boards relay board Solid State or Electromechanical Option board and Modbus board These Boards are field replaceable Simply loosen the locking standoffs remove one board insert the other board and tighten screws Depending upon requirements either an Electromechanical or Solid State Relay Board module can
44. ween the 4 20 mA terminal and the Common terminal use of shielded cable is highly recommended for signal input output and power wires to protect against interference caused by extraneous electrical or electromagnetic noise In applications where the wiring cable is installed in conduit the conduit must not be used for wiring to other electrical equipment MAN 0047 Rev 12 MLP A AR AD SC1100 amp MLP LP A AR ARS SCI100 installed according to applicable local electrical codes Seals are especially recommended for installations that use high pressure or steam cleaning devices in proximity to the transmitter and or sensor Water proof and explosion proof conduit seals are recommended to prevent water accumulation within the enclosure Seals should be located as close to the device as possible and not more than 18 inches 46 cm away Explosion proof installations may require an additional seal where conduit enters a non hazardous area Ensure conformity with local wiring codes When pouring a seal use a fibre dam to ensure proper formation of the seal Seals should never be poured at temperatures below freezing The jacket and shielding of the cable should be stripped back to permit the seal to form around the individual wires This will prevent air gas and water leakage through the inside of the shield and into the enclosure It is recommended that explosion proof drains and conduit breathers be used In some applica
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