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Atmospheric Oil Mist Detection System

MULTIPLEX

AM8/JANUARY 2015

EMAIL  [email protected]  WEBSITE  www.oilmist.com  4 East Barnet Road, London, England, EN4 8RW  TEL  +44 (0)20 7328 3121

Maintenance 

Part5-7

SUGGESTED MAINTENANCE PLAN FOR ATMOSPHERIC 

SENSORS

The only regular operation that can be built into a planned maintenance is to clean the 

lenses but if the manual test programme is initiate on the Monitor on a say weekly 

basis. The indication “dd” on any channel will mean that you have 20% of dirt on the 

lenses so it’s a good idea to clean the lenses as soon as it feasible. The system however 

can compensate for up to 40% of contamination.

See Part 5-3 on Lens Cleaning Procedure.

Содержание MULTIPLEX Series

Страница 1: ...MULTIPLEX Oil Mist Detection System Manual ATMOSPHERIC SENSOR AM8 JANUARY 2015...

Страница 2: ......

Страница 3: ...Systems have been providing a fast response without false alarms to protect lives and prevent fires since the early eighties Our Engine Oil Mist Detection Systems provide engine condition data to cont...

Страница 4: ...mospheric Sensors are used Part2 13 Multi way Junction Box PCB with 12V PSU Q07 Part2 14 Connector Q01H1 Details for QMI MULTIPLEX CMU Junction Box Part2 15 Cable Details for Atmospheric Sensors 6 Pol...

Страница 5: ...re a Channel Part3 8 Response to Alarm Part3 9 PART 4 FAULT FINDING Drawing Layout of Transistors and Fuses Part4 2 Fault Directory Part4 3 PART 5 MAINTENANCE Maintenance Procedures Part5 2 Lens Clean...

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Страница 7: ...ric Oil Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Introduction Part1 1 PART 1 INTRO...

Страница 8: ...alarm Normally de energised with 1 set of change over contacts Fault alarm Normally energised with 1 set of change over contacts OPERATING TEMPERATURE 5 70 C MULTIPLEX DIMENSIONS mm WEIGHT kg Central...

Страница 9: ...UCTIO NS To display a function place Magnet Pen FLAT over specified circle Function Circle Channel level reading Pre set alarm level mgm litre Self test programme Detector alarm test Isolate detector...

Страница 10: ...MULTIPLEX Atmospheric Oil Mist Detection System AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Introduction Part1 4...

Страница 11: ...head screws retain the display panel Upon removal of the screws the panel can be swung away from the main enclosure PCB Q0106 Part 1 3 The display panel sub assembly carries the main MULTIPLEX PCB ty...

Страница 12: ...400mA anti surge fuse for 12V power to the fans The LED will light when all is well FS3 Q0112 is a 400mA anti surge fuse to protect the Data Logger PCB and also has a Green LED3 light which is lit co...

Страница 13: ...khead or deckhead allowing the Sensor to be positioned facing the flow of air in the chamber being monitored The sub assembly is fitted to the Articulated Joint by 4 screws which can be removed if and...

Страница 14: ...Atmospheric Oil Mist Detection System AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Introduction Part1 8 PHOTOGRAPH OF...

Страница 15: ...il Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Introduction Part1 9 DRAWING OF ATMOSP...

Страница 16: ......

Страница 17: ...ric Oil Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 1 PART 2 INSTA...

Страница 18: ...MULTIPLEX Atmospheric Oil Mist Detection System AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 2...

Страница 19: ...Atmospheric Oil Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 3...

Страница 20: ...N OF SENSORS Please follow the guidelines outlined below to get the best results We recommend using a smoke test aerosol or smoke generator to judge the way the air flows over the machinery Normally a...

Страница 21: ...f Sensors These factors should be considered together and a smoke generator is a good way to observe air movement and test positioning of the Sensors a Size of room or chamber e g hydraulic pack area...

Страница 22: ...r of potential sources of oil mist To make it easier to determine the source of oil mist each piece of machinery or potential oil mist source should have a Sensor installed immediately down stream of...

Страница 23: ...rticulated Joint BEST PRACTICE Until the ship is in operation to avoid contamination of the lenses after installation cover Sensors with a plastic bag This will prevent paint or other materials dirtyi...

Страница 24: ...ual for this procedure Begin by setting all the Sensors at 0 05mg L There will always be areas where there is oil mist for instance in the purifier room The alarm level must be set to a higher level t...

Страница 25: ...4 way female shut slowdown output open or relay 3 10 way female alarm output 4 4 way male mains input 5 16 way female data logger output optional MATING CONNECTORS FOR THE ABOVE Connector Part No 1 3...

Страница 26: ...and Cross section n x mm2 1 Monitor to Junction Box 19 x 2 x 0 75mm2 2 Monitor to Alarms or Shutdown optional 4 x 2 x 0 5mm2 3 Monitor to Main Alarm 4 x 2 x 0 5mm2 4 Monitor Power 3 x 1 5mm2 rating Mi...

Страница 27: ...to right and numbered 1 to 6 The cable specification is 3 twisted pair of 0 5mm2 or 3 twisted pair of 0 75mm2 where distance is over 100 meters This cable can be sourced from Helkama part number is R...

Страница 28: ...by QMI ASSEMBLE INSTRUCTIONS 1 Strip back about 125mm of outer sheathing of cable and separate the wires Then tin the ends of wires and the drain wire screen being used 2 Assemble socket on to wire in...

Страница 29: ...4 Sensors are used supply common 25 26 are used when more than 3 or 4 Sensors are used supply 27 is used when only 3 or 4 Sensors are used supply 27 28 is used when more than 4 Sensors are used fan fa...

Страница 30: ...MULTIPLEX Atmospheric Oil Mist Detection System AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 14...

Страница 31: ...Atmospheric Oil Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 15...

Страница 32: ...MULTIPLEX Atmospheric Oil Mist Detection System AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 16...

Страница 33: ......

Страница 34: ...MULTIPLEX Atmospheric Oil Mist Detection System AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 18...

Страница 35: ...Atmospheric Oil Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 19...

Страница 36: ...MULTIPLEX Atmospheric Oil Mist Detection System AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 20...

Страница 37: ...Installation Part2 21 110 240V POWER SUPPLY WIRING 1 The 110 240VAC power supplies the Control Monitor Unit CMU 2 Below shows the wiring for 110 240 VAC Power Supply 3 The cable used should be of mini...

Страница 38: ...MULTIPLEX Atmospheric Oil Mist Detection System AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 22...

Страница 39: ...Atmospheric Oil Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 23...

Страница 40: ......

Страница 41: ...m types i Main Alarm Relay 10 ii Early Warning Alarm Relay 7 iii Functional Shutdown Alarm iv Fault Alarm Relay 8 4 The cable used should be a minimum 6 cores and can range from a minimum thickness of...

Страница 42: ...re transmitted from the Central Monitor Unit CMU via a 4 way Harting Plug 2 The Shutdown operates via Open or Closed Contacts Relay 3 Below shows the wiring for Plant Shutdown Relay 9 4 The cable used...

Страница 43: ...OWER EXPLOSION LIMIT LEL 50mg L FULL ALARM LEVEL GREEN FLASHING YELLOW EARLY WARNING RELAY PRESET SENSITIVITY LEVEL SHUT SLOW DOWN RELAY MAXIMUM ALLOWABLE DENSITY BEFORE ALARM 1 30mg L FLASHING RED W...

Страница 44: ...rresponding to the displayed mist percentage for each Sensor This is a digitally calculated reading taking into account temperature non linearities of the Sensors and oil deposit build ups within the...

Страница 45: ...Atmospheric Oil Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Installation Part2 29...

Страница 46: ......

Страница 47: ...t Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Running Procedure Part3 1 PART 3 STARTING UP...

Страница 48: ...signals are fed to the micro processor which is located in the CMU The signals are scanned at 500 millisecond intervals and the data is presented as a digital display reading from 0 to 100 of alarm le...

Страница 49: ...will activate for 2 5 seconds as the Monitor will check first that the fault is in the system and not a problem with the environment Even when this fault alarm relay is activated the instrument goes...

Страница 50: ...tings will illuminate 3 Place the magnetic pen Q0109 flat against the circle marked Check Alarm Settings 4 Place the magnetic pen flat against the Raise Alarm Level circle marked with or the Lower Ala...

Страница 51: ...relays with the exception of the functional relay will operate for 10 seconds If the system has an audio alarm system it is recommended that the personnel should be warned of the impending test The t...

Страница 52: ...r the CHANNEL number The channel identification digital display will be shown digitally as a milligrams per litre value in mg L of oil mist density Should the alarm level need to be adjusted then foll...

Страница 53: ...f off off 02 off on off off 03 on on off off 04 off off on off 05 on off on off 06 off on on off 07 on on on off 08 off off off on 09 on off off on 10 off on off on 11 on on off on 12 off off on on Sw...

Страница 54: ...3 2 There are a total of 10 Binary switches 6 To program the switches for a number of Sensors switch to the positions shown in the above table TO ISOLATE OR RESTORE A CHANNEL If a Sensor becomes fault...

Страница 55: ...d alongside the digital read out level The functional shutdown relay alarm RL9 will operate if wired into the system At this level RL10 the main alarm will be activated Further action should be taken...

Страница 56: ...s uses relay RL8 See table below for the fault conditions as presented on the Monitor faceplate For more information see the Fault Directory in Part 4 Channel Reading Response 1 12 F1 Check and repair...

Страница 57: ...ic Oil Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Fault Finding Part4 1 PART 4 FAULT...

Страница 58: ...MULTIPLEX Atmospheric Oil Mist Detection System AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Fault Finding Part4 2...

Страница 59: ...nsor F1 denotes cable fault Check for split or damaged cable or incorrect earthing see wiring instructions F1 and all Channel Lights Flash 1 Check Fuse FS1 on the Power Supply Board 2 See Part 4 2 If...

Страница 60: ...Junction Box PCB 3 Leaving the mains power disconnected to the Junction Box reset the Monitor 4 If F4 has now gone the cable from the Monitor to the Junction Box is okay 5 Remove the links from termin...

Страница 61: ...own Replace FS1 with 1 25A anti surge fuse If fuse keeps blowing then check wiring and Sensor for faults See Part 4 2 TR1 Faulty Replace TR1 with spare in Maintenance kit Q0111 take care not to short...

Страница 62: ......

Страница 63: ...eric Oil Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Maintenance Part5 1 PART 5 MAINT...

Страница 64: ...T function The warning indication on the digital display will persist until the fault is corrected or the channel isolated SENSOR CLEANLINESS A large percentage of returns under Warranty are in fact d...

Страница 65: ...or 3 Holding the Sensor undo the 4 screws fixing the Sensor body to the Articulated Joint Use the Allen Key tool from the Maintenance Kit 4 Replace with a spare Sensor if available Proceed to item 8 5...

Страница 66: ...Maintenance Part5 4 IMPORTANT NOTES 1 The Sensor electronics are factory calibrated and cannot be serviced on site In the event of a fault the Sensor must be sent back to QMI unless it is a faulty fan...

Страница 67: ...cuit board will invalidate the guarantee and may stop the sensor working 1 Turn the potentiometer screw fully anti clockwise 15 turns 2 Connect air sensor to Monitor The LED on the front of the air se...

Страница 68: ...d Joint Q1010 Cleaning Fluid Clean All 200ml For cleaning Q10 Sensor lenses Q0103 Monitor Security Keys For changing settings on MULTIPLEX Monitor Q01H Pack of 2 Q0109 Magnetic Pen To activate display...

Страница 69: ...C SENSORS The only regular operation that can be built into a planned maintenance is to clean the lenses but if the manual test programme is initiate on the Monitor on a say weekly basis The indicatio...

Страница 70: ......

Страница 71: ...mospheric Oil Mist Detection System MULTIPLEX AM8 JANUARY 2015 EMAIL qmi oilmist com WEBSITE www oilmist com 4 East Barnet Road London England EN4 8RW TEL 44 0 20 7328 3121 Spares Part6 1 PART 6 SPARE...

Страница 72: ...Q0106 Switch Mode Power Supply No case for Power Supply Unit for Monitor Q0109 Magnetic Pen To activate displays on Monitor Q0111 TR1 Transistor Power Supply Board of Q01H Monitor Q0112 400mA Anti su...

Страница 73: ...us the return address for repaired or serviced equipment 5 The above documents should be faxed and emailed to QMI London Fax 44 0 20 7328 5888 Email qmi oilmist com 6 Despatch returned goods to Attn Q...

Страница 74: ...rial Number of Monitor ____ ____ ____ ____ 4 Number of Sensors __________ 5 Serial Number of Sensors A ___ ___ ___ ___ to A ___ ___ ___ ___ 6 Email address ____________________________________________...

Страница 75: ......

Страница 76: ...Quality Monitoring Instruments Ltd 4 East Barnet Road London EN4 8RW Email qmi oilmist com Tel 44 0 20 7328 3121 Fax 44 0 20 7328 5888 visit our website at www oilmist com v 3 2 6906012015...

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