QMI MULTIPLEX Series Manuale utente
MULTIPLEX™
Oil Mist Detection System
Manual
ATMOSPHERIC SENSOR
AM8/JANUARY 2015
QMI MULTIPLEX™
Atmospheric Oil Mist Detection System Manual
AM8/JANUARY 2015
You have chosen the QMI MULTIPLEX™ Atmospheric Oil Mist Detection System to
locate hazardous levels of oil mist in confined areas such as: engine rooms, pump
rooms, bow thrusters, purifier rooms, hydraulic pack areas, and test cells.
We can provide the smaller QMI TRIPLEX™ Atmospheric Oil Mist Detection Systems for
spaces that require up to three Sensors.
The QMI MULTIPLEX™ Oil Mist Detection 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 continuously monitor when
and where repairs are needed thus avoiding unnecessary engine wear and the resulting
danger.
This system is designed to measure oil mist between 3 and 10 microns.
For more information please see our website: www.oilmist.com
© 2015 Quality Monitoring Instruments Ltd.
Errors and omissions excepted. As we strive to improve our service and products specifications may
change or vary.
Atmospheric Oil Mist Detection System
MULTIPLEX
AM8/JANUARY 2015
Table of Contents
PART 1
INTRODUCTION
Technical Specifications Part1-2
QMI MULTIPLEX Monitor Part1-3
MULTIPLEX Central Monitor Unit (CMU) Layout Part1-4
Description of Central Monitoring Unit (CMU) Part1-5
Description of Sensor (Q10) Part1-7
Photograph of Sensor (Q10) Part1-8
Drawing of Atmopheric Sensor Part1-9
PART 2
INSTALLATION
General Wiring Layout for MULTIPLEX Atmospheric System Part2-2
Cut out for QMI Panel/Wall Mounted Monitor Part2-3
Positioning and Location of Sensors Part2-4
Positioning of QMI Atmospheric Sensor (Q10) Part2-5
Schematic of Positioning of Sensor and Best Practice Part2-7
Monitor with Harting Connectors Part2-9
Cable Specifications Part2-10
Wiring Description Part2-11
Wiring of Socket Part2-12
Multi-core Cable Sizing Table When Less than 10 Atmospheric
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 Pole Socket (Q1006) Part2-16
Connector Details for QMI MULTIPLEX CMU - Junction Box when
used with Atmospheric Sensors (Q10) Part2-18
Wiring Details for Junction Box to Atmospheric Sensors (Q10) Part2-19
Overall View of Connector No. 4 For QMI MULTIPLEX Mains
110/240V Power Socket (Q01H4) Part2-20
110/240V Power Supply Wiring Part2-21
Cable Details for QMI MULTIPLEX Relay Alarm Output (Q01H3) Part2-22
Cable Details for QMI MULTIPLEX Relay Shutdown Output (Q01H2) Part2-23
Alarm Output Wiring Part2-25
Optional Plant Shutdown Wiring Part2-26
Graph to show relationship between mg/L, Digital Readout of
Percentage of Alarm Level and the Percentage of LEL Part2-27
QMI MULTIPLEX 4-20mA Data Logger Output Part2-28
Cable Details for QMI MULTIPLEX 4-20mA Data Logger Output
(Q01H5) Part2-29
PART 3
STARTING UP/RUNNING PROCEDURE
Operation Part3-2
Operation of Alarm Relays Part3-3
Setting and Changing Alarm Levels Part3-4
Test Sequence Part3-5
Checking Alarm Levels and Reading Channels Part3-6
Changing the Number of Sensors Part3-7
Setting Up of Sensors Required Part3-8
To Isolate or Restore 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 Cleaning Procedure Part5-3
Replacing Fan (Q1004) in Sensor Part5-5
Maintenance Kit (Q1005) Part5-6
Suggested Maintenance Plan for Atmospheric Sensors Part5-7
PART 6
SPARES
Codes and Description for Replacement Parts and Spares Part6-2
Returns Procedure Part6-3
QMI Continual Support Information Request Part6-4
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
Introduction Part1-1
PART 1
INTRODUCTION
MULTIPLEX Atmospheric Oil Mist Detection System
AM8/JANUARY 2015
EMAIL [email protected] WEBSITE www.oilmist.com 4 East Barnet Road, London, England, EN4 8RW TEL +44 (0)20 7328 3121
Introduction Part1-2
TECHNICAL SPECIFICATIONS
POWER SUPPLY Nominally 110/240VAC 50/60 Hz
MAXIMUM POWER
CONSUMPTION
100W
MAXIMUM SAMPLING
CHANNELS
12
CYCLE TIME 500 milliseconds simultaneously on all channels
MEASURING SYSTEM Time multiplex analogue signal
SYSTEM OUTPUTS - RELAYS All relays fitted with maximum change contacts
voltage rating 110V@8A to 240V 5A
Main alarm Normally energised with 1 set of change over
contacts
Early warning alarm Normally energised with 1 set of change over
contacts
Function shutdown 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 Monitoring Unit (CMU) 403 x 312 x 128 10
Sensor (DH) 359 x 113 x 73 2.30
MONITOR SEAL Monitor is sealed to IP65
MAXIMUM DISTANCE Maximum cable length between DHs and CMU is
100 metres. (for longer lengths contact QMI)
FUSE ARRANGEMENTS:
Internal FS1 -Head Interface 1.25A anti-surge
Internal FS2 -12V DC Fan Failure Supply 400mA anti-surge
Internal FS3 -400mA Data Logger PCB Protection
External FS4 -110/240VAC 3.15A anti-surge
OPERATING TEMPERATURE:
Monitor (Q01H)
5° - 70°C
FEATURES Continuous self-monitoring fault diagnosis
Manual test facility of all functions
Functional shutdown (e.g. hydraulic pack)
OPTIONAL 4-20mA output for up to 12 individual alarms or
data-logging of alarms See Part 2-29 and 2-30.
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
Introduction Part1-3
Channel switches
Oil mist status LED and
Alarm indicator
Channel identification
Power indicator
Setting indicator LEDs
Operating instructions
Magnetic pen
Testing
CPU indicator
Alarm setting switches
Alarm level viewing switch
Fuse (FS3 - Q0115)
Security key switch
12345678910 11 12
!
Oil mist level reading, setting and fault location read out
Fault directory
Isolate, reset and test switches
Channel number
Channel Reading
mgm/litre
Isolate Reset Test
Testing
No CPU
Raise alarm level
Lower alarm level
OPERATING INSTRUCTIONS
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
Restore detector
Normal operation
Channel number
Alarm level + Channel number
Test
Alarm level + Test + Channel number
Isolate + Channel number
Isolate + Reset + Channel number
Reset
Quality Monitoring Instruments, London, NW6 2HL, UK
FAULT DIRECTORY
Channel Reading Fault Condition Action required
1-12 F1 Cable fault Check/repair relevant cable
1-12 F2 Detector dirty Clean detector according to instructions
1-12 F3 Detector faulty Clean as F2 first or replace detector
1-12 IC Isolated Circuit Checking operating instructions
C F4 Fan Failure Check fan and fan failure detecting system
NOTE: if 'No CPU' light is on, refer to manual.
'dd' on test is dirty detector.
'cd' on test is clean detector.
Alarm level
Setting
%
QMI MULTIPLEX MONITOR
MULTIPLEX Atmospheric Oil Mist Detection System
AM8/JANUARY 2015
EMAIL [email protected] WEBSITE www.oilmist.com 4 East Barnet Road, London, England, EN4 8RW TEL +44 (0)20 7328 3121
Introduction Part1-4
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