QMI TRIPLEX User manual

TRIPLEX™ OIL MIST
MONITORING
SYSTEM
Atmospheric Oil Mist Detection
System Manual
TM4 / AUGUST 2018

QMI TRIPLEX™
Atmospheric Oil Mist Detection System Manual
TM4 / AUGUST 2018
You have chosen a QMI oil mist detection system that has been providing a fast
response without false alarms to protect lives and prevent fires since the early
eighties.
The QMI TRIPLEX™ Atmospheric Oil Mist Detection Systems can locate a hazardous
build up of oil mist in confined areas such as: pump rooms, bow thrusters, purifier
rooms, hydraulic pack areas, and test cells.
We can provide QMI MULTIPLEX™ Atmospheric and Engine Oil Mist Detection
Systems. The MULTIPLEX™ systems have up to 12 channels and can be used to
monitor engine condition continuously to see when and where repairs are needed
thus avoiding unnecessary engine wear and the resulting danger. The MULTIPLEX™
can also be used for larger Atmospheric Systems. For more information please see
our website: www.oilmist.com
© 2018 Quality Monitoring Instruments Ltd.
Errors and omissions excepted. As we strive to improve our service and products specifications may
change or vary.
Type Approval from:
Atmospheric Oil Mist Detection System
TM4 / AUGUST 2018

Table of Contents
Technical Specifications Sheet-4
QMI TRIPLEX Central Monitor Unit (CMU) (Q01T): Photograph and Features Sheet-5
Dimensions of TRIPLEX Monitor Sheet-6
Description of Triplex Monitor (Q01T) Sheet-7
Description of Q10 Atmospheric Sensor Sheet-8
Photograph of Q10 Atmospheric Sensor Sheet-9
Drawing of Q10 Atmospheric Sensor Sheet-10
Positioning and Location of Atmospheric Sensors Sheet-11
Positioning of Q10 Atmospheric Sensor Sheet-12
Schematic of Positioning of Sensors and Best Practice Sheet-14
Fault Alarm and Cable Specification Sheet-16
Wiring Description Sheet-17
Wiring of Socket Sheet-18
Wiring for System Layout Sheet-19
Photograph of Power Supply Board (Q01T05) Sheet-20
Drawing of PSB Sheet-21
Schematic of layout for Wiring Option 1: for 1 to 3 Atmospheric Sensors Sheet-22
Drawing – Connection from Atmospheric Sensor to Monitor Sheet-23
Drawing – Wiring from Atmospheric Sensor to Monitor Sheet-24
Schematic of layout for Wiring Option 2: For 2 or 3 Atmospheric Sensors using a Junction
Box Sheet-25
Photograph of unboxed 3 – Way PCB (Q01T06) Sheet-26
Drawing – Unboxed 3 – Way PCB for a Junction Box Sheet-27
Drawing – Wiring from Monitor to PCB (Q01T06) Sheet-28
Drawing – Connections from PCB to Atmospheric Sensors Sheet-29
Drawing – Wiring from Junction Box PCB to Atmospheric Sensors Sheet-30
Alarm Outputs and Alarm Levels Sheet-31
Graph to show relationship between Oil Mist concentration and Digital Alarm readout Sheet-32
QMI Triplex 4-20mA Analogue Data Output - (Optional) Sheet-33
Operation of Alarm Relays Sheet-34
Alarm Level, Checking And Changing Sheet-35
Test Sequence Sheet-36
Channel Numbers, Changing Sheet-37
To Isolate or Restore a Channel Sheet-38
Restore Alarms Sheet-39
Drawing – Layout of Transistors and Fuses Sheet-41
Fault Directory Sheet-42
Maintenance Procedures Sheet-44
Lens Cleaning Procedure Sheet-45
Suggested Maintenance Plan for Atmospheric Sensors Sheet-46
Replacing Fan (Q1004) in Sensor Sheet-47
Maintenance Kit Check List Sheet-48
Spares, Codes and Descriptions Sheet-49
Returns Procedure Sheet-50
QMI Request For After Sales Information Sheet-51

Atmospheric Oil Mist Detection System
TM4 / AUGUST 2018
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Sheet-4
TECHNICAL SPECIFICATIONS
POWER SUPPLY Nominally 110 - 240 VAC 50/60 Hz
MAXIMUM POWER CONSUMPTION 100W
MAXIMUM SAMPLING CHANNELS 3
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
Shutdown Alarm
NOT INCLUDED IN SELF TEST
SEQUENCE
Normally de-energised with 1 set of change
over contacts
Fault Alarm Normally energised with 1 set of change
over contacts
OPERATING TEMPERATURE 5°C - 70°C Monitor, Sensor and Fan Unit
DIMENSIONS (mm) WEIGHT (Kg)
Q01T Triplex Monitor 280 x 230 x 128 5.2
Sensor (DH) 359 x 113 x 73 2.3
Sealed to IP65 or better Monitor, Sensor and Fan Unit
MAXIMUM CABLE DISTANCE Maximum distance between Sensor and
Monitor is 100 metres.
Fuse - FS1 Internal Sensor Interface 1.25A anti-surge
Fuse - FS2 Internal 12V DC Fan Failure Supply 400mA anti-
surge
Fuse - FS3 External 110 - 240 VAC 3.15A anti-surge
FEATURES Continuous self-monitoring fault diagnosis
Manual test facility of all functions
Including shutdown facility (e.g. hydraulic
pack)

Atmospheric Oil Mist Detection System
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Sheet-5
4 x door securing screws M4
Channel switches
Oil mist status LED and alarm indicator
Channel identication
Power indicator
Testing
CPU indicator
Magnetic pen
Alarm setting switches
Fuse FS3
Serial number
Security key switch
Oil mist level reading, setting and
fault location readout
Fault directory
Operating instructions
Isolate, reset and test switches
Alarm level
viewing switch
Glands (as shown above) are not supplied.
The Monitor is supplied with blind grommets.
QMI TRIPLEX CENTRAL MONITOR UNIT (CMU) (Q01T):
PHOTOGRAPH AND FEATURES

Atmospheric Oil Mist Detection System
TM4 / AUGUST 2018
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Sheet-6
130mm
230mm
280mm
OVERALL WIDTH WITH HINGE AND MAGNETIC KEY
SPACE BETWEEN HOLES IN BOTTOM OF MONITOR
IS APPROXIMATELY 46mm
HINGE
325mm
MAGNETIC PEN
FUSE
KEY
130mm
230mm
93mm
37mm
Dimensions of TRIPLEX MONITOR
FIXING HOLES
8mm
180mm
260mm
THIS DRAWING IS NOT TO SCALE
8 Holes of 20mm diameter
4-20mA Analogue Data Output Connection
DIMENSIONS OF TRIPLEX MONITOR

Atmospheric Oil Mist Detection System
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Sheet-7
The Monitor Enclosure contains:
Display Panel
Power Supply Board (PSB)
Plugs and sockets for relevant connections
Fuses
Keyed Security Switch
The Display Panel
The display panel is mounted on a hinged bezel which is secured to the enclosure
by (4) M6 Captive socket head screws. Releasing the screw allows access to the
TRIPLEX PCB and the power supply board within.
TRIPLEX PCB (Q01T04)
The back of the display panel carries the Triplex MP3 Processing Board, Binary Switch
and Flash Chip. The PCB is held to the panel with (5) M4 cheese head screws.
Power Supply Board (Q01T05) with PSU
Mounted on the board is a Power Supply Unit, fuses, TR1 transistor, alarm relays, and
termination sockets.
NOTE:
THE PLUGS ARE SHAPED AND CAN ONLY BE FITTED ONE WAY.
INCORRECT FITTING DAMAGES THE SOCKET CAUSING UNIT MALFUNCTION.
Fuses
FS1 (Q0114) is a 1.25A anti-surge fuse connected to TR1 and supplies the
Sensor. The LED continually flashes in operation.
FS2 (Q0112) is a 400mA anti-surge fuse for the 12V power supply to the fan.
The LED is permanently lit in operation.
FS3 (Q0115) is a 3.15A anti-surge fuse (in a holder) fitted to the side of the
Monitor.
Security Key Switch on the right side of the Monitor.
THE SECURITY KEY IS REQUIRED TO CHANGE SETTINGS.
HORIZONTAL = LOCKED MODE
VERTICAL = SETTING MODE
NOTE:
THERE IS NO MAINS ISOLATOR FITTED TO THE MONITOR.
QMI RECOMMEND A SECURE MAINS ISOLATOR IS FITTED TO PREVENT POWER
INTERRUPTION TO THE SYSTEM.
DESCRIPTION OF TRIPLEX MONITOR (Q01T)

Atmospheric Oil Mist Detection System
TM4 / AUGUST 2018
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Sheet-8
DESCRIPTION OF Q10 ATMOSPHERIC SENSOR
See drawing Sheet-10
The Sensor operates using the principle of light scatter (nephelometry). The power
and signal are transmitted to and from the Monitor through a single cable sending a
timed analogue signal. All Sensors sample simultaneously and continuously every half-
second (500 milliseconds).
The assembled Sensor comprises:
(a) Articulated Joint and mounting flange
(b) Chamber
a) ARTICULATED JOINT AND MOUNTING FLANGE
See drawing Sheet-10
The Articulated Joint is fitted to bulkhead or deck 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 when the Sensor lens requires cleaning.
b) CHAMBER
Inside the unit are the PCB, integral fan, and sensing lenses. Power is supplied to the
12-volt fan by a single cable, which is connected to the
Monitor (or to a junction box). The fan draws the sample of air past the sensors
through the outlet ports.
In the front of the Sensor unit are the air intake louvers, and an LED, which shows
green when the fan is working. The electronics are mounted on the back of the
chamber casing and are protected by the cover sealed to IP 65.
At the back of the unit is the multi-purpose power and signal socket. Next to the
socket is the mounting spigot.
NOTE: The integral fan is interchangeable without recalibrating the Sensor.
It is a consumable item and does not come under warrantly. New Fans can be
purchased from your Agent.

Atmospheric Oil Mist Detection System
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EMAIL [email protected] WEBSITE www.oilmist.com 4 East Barnet Road, London, England, EN4 8RW TEL [phone]
Sheet-9
PHOTOGRAPH OF Q10 ATMOSPHERIC SENSOR

Atmospheric Oil Mist Detection System
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Sheet-10
DRAWING OF Q10 ATMOSPHERIC SENSOR

Atmospheric Oil Mist Detection System
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Sheet-11
POSITIONING AND LOCATION OF ATMOSPHERIC
SENSORS
NUMBER OF SENSORS REQUIRED
It must be taken into consideration that the number of Sensors will depend on the
pressure being released into the atmosphere which is relative to the volume of the
space. It will also depend on the amount of air movement.
In a large engine room you may need 4 or 5 Sensors (for which you would use a QMI
MULTIPLEX Atmospheric Oil Mist Detection System), for a hydraulic pack room 1 to 3
Sensors are sufficient. In purifier and compressor rooms one is usually enough. For all
other spaces such as steering gear or bowthruster housing use 1 or 2 Sensors.
Remember, any spare channels can be used later.
NOTE: Sensors cannot be used in cargo pump rooms as they have not been certified
for hazardous zones.
LOCATION OF SENSORS
Please follow the guidelines outlined below to get the best results.
We recommend using a smoke test aerosol or a smoke generator to judge the way the
air flows over the machinery. Normally air will move toward ventilation extractors or
the turbo charger, therefore, the Sensor must be placed in the air stream facing the
airflow as close as possible to the machinery.
The Sensor comes with a fixing flange which is welded on the Articulated Joint.We
suggest the length of cable that runs to the Sensor is longer than required to enable
the Sensors to be moved at a later date if necessary.
To confirm that the Sensors are correctly positioned you should carry out the following
test; wait until the engines, ventilation and other machinery are fully operational, then
once again use your smoke test aerosol or smoke generator to prove the Sensors are
correctly positioned. The Sensor should be rotated until positioned mid airflow as
indicated by the movement of smoke.
NOTE: Always place the Sensor in a position so that it can be easily maintained as the
Sensors should be cleaned regularly.

Atmospheric Oil Mist Detection System
TM4 / AUGUST 2018
EMAIL [email protected] WEBSITE www.oilmist.com 4 East Barnet Road, London, England, EN4 8RW TEL [phone]
Sheet-12
POSITIONING OF Q10 ATMOSPHERIC SENSOR
We discuss below how the movement of oil mist in the atmosphere responds in working
environments and suggest how the placement of Sensors in an optimum position is
determined by flow of air. The Sensors may have to be adjusted when setting up the system
or even later when any structural alterations, machinery changes or more powerful fans are
introduced within the area.
There are so many variables in the detection of oil mist in the atmosphere that it is by no
means an exact science. Common sense has a part to play when positioning Sensors.
HOW MUCH AIR DOES THE SENSOR DRAW?
It pulls through 23 cubic feet/min or 0.65 m3/min
WHAT IS THE DETECTING RANGE?
There is no detecting range for the Sensor. The Sensor uses its internal fan to draw
in air, which is measured for oil mist. Three sensors inside the atmospheric Sensor
measure backscatter of light in the air drawn into the Sensor, and dirt on the lenses.
WHAT ARE THE FACTORS THAT DETERMINE THE POSITIONING AND NUMBER OF
SENSORS NEEDED?
Four factors determine good positioning and number of 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 or engine room)
The fan in the Sensor has a through-put of 0.65m3per minute. In a large room, more
Sensors will allow a faster response. Also, dispersal of oil mist will be greater in a
larger space and will require more careful positioning on the Sensors in the path of
airflow.
b. Air circulation
In addition, the movement of air affects how many Sensors should be installed. If a
room has only one vent then the Sensor placed near this vent will be able to sample
the air extracted from the room. However, if there is more than one vent or point
of extraction a Sensor is best placed in each path of air being drawn from towards
each of these vents. This is why a smoke generator or a smoke test aerosol is used
to ensure that the Sensor points towards the potential source of oil mist. The Sensor
should be installed with the intake louvers facing the path of the smoke as shown
by the smoke generator. The smoke generator will also show any eddies or paths
that the air may follow in the chamber which is important to ensure that Sensors are
correctly positioned.
In hydraulic pack areas there should be a Sensor between each extractor and the
packs which normally means 2 to 3 Sensors especially if the pack is in the engine
room. This should be bourne in mind with any areas are being monitored.

Atmospheric Oil Mist Detection System
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Sheet-13
EDDY 1
E
xtractor/ Vent
Extractor/ Vent
Direction of movement of air
Direction of movement of air as part of an eddy.
Location of Detector
EDDY 1 does not require monitoring as it up stream of the
potential oil mist source
Location of Detector in EDDY 2 is recommended as oil mist may
be drawn away from the vent.
EDDY 2
EDDY 2
EDDY 1
source of
oil mist
c. Proximity to potential source of oil mist
A Sensor should be placed downstream of the airflow around a potential source of oil
mist (e.g. hydraulic pump). The closer the Sensor is to the machinery, the faster the
response time should be.
d. Number of potential sources of oil mist
A fourth factor is the number 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 the airflow to ensure the
fastest response possible.
In an engine room several Sensors are needed but the exact location will vary
according to airflow.

Atmospheric Oil Mist Detection System
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Sheet-14
SCHEMATIC OF POSITIONING OF SENSORS AND BEST
PRACTICE
The articulated joint allows the Sensor to be positioned mid airflow.
See Sheet-10 for the drawing of the Sensor and articulated 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 dirtying
or damaging the lenses, blocking the Sensor louvers and fan. These outcomes may
permanently damage the Sensors and/or require Sensors to be returned to QMI for
repair.
NOTE: Any damage of this nature will not be covered by our guarantee.
When oil mist detection system is in operation:
· Do not conduct painting in the space with the Sensors.
· Never cover Sensors
When Sensors are installed but not in operation:
· Keep Sensors in sealed plastic bag

Atmospheric Oil Mist Detection System
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Sheet-15
SETTING ALARM LEVELS
For setting alarm levels see Sheet-31 of this manual 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 than needed
so that the system does not go into alarm when there is no problem.
TEST PROCEDURE
As these Sensors are sensitive to smoke, steam or oil mist, artificial smoke can be
used to test the Sensors. This is the most effective way of proving the Sensors are
working.

Atmospheric Oil Mist Detection System
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Sheet-16
FAULT ALARM AND CABLE SPECIFICATION
Connection Number of Conductors and Cross section in mm HELKAMA of
Finland
Monitor > Shutdown 4 x 2 x 0.5 mm RFE - HF
Monitor > Alarms 4 x 2 x 0.5 mm RFE - HF
Monitor > Power 3 x 1.5mm rating Minimum, 3A LNE, not twisted LKM - HF
Monitor > Sensor 4 x 2 x 0.5mm (for distance under 100 meters)
4 x 2 x 0.75mm (for distance over 100 meters)
RFE - RF
When fault alarm is activated, the Monitor will still process information. On activation, the
lights will flash: Green, Amber or Red status and F1, F2 or F3 will be indicated on the display.
Fault codes are on the display panel on the Monitor and in the Manual.
CABLE SPECIFICATION – RECOMMENDED TYPE AND SIZE
Halogen free instrumentation, control and communication cable or equivalent appropriate
specification for your application.
Conductor: Standard Copper, annealed, IEC228 Class 2
Insulation: According to appropriate standards
Pairs: 2 Core twisted cable size 1 x 4 x 0.5 mm or 0.75 mm
Standing: Pairs Stranded together
Screening: Braid of annealed copper wires. Filler tape under braid

Atmospheric Oil Mist Detection System
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Sheet-17
WIRING DESCRIPTION
The wires are terminated into screw type plugs. These plug into the connectors on the
TRIPLEX power supply board (PSB). They have to be plugged in the correct way round.
See photograph of power supply board Sheet-20.
WIRING FOR POWER SUPPLY 110/240 VAC
The Mains connector is a 3-pin with Live, Neutral, and Earth. On the Power Supply
Board this is marked L, N +
Cable is 3 core of 1.5mm2and can be sourced from Helkama part number is LKM - HF
3 x 1.5.
WIRING FOR SENSORS
The Sensors are wired using 3 twisted - pair cable. Each connector is wired left to right
and numbered 1 to 6. The cable specification is 3 twisted pair of 0.5mm2or 3
twisted pair of 0.75mm2where distance is over 100 meters.
This cable can be sourced from Helkama: part number is RFE - HF 4 x 2 x 0.5mm2or
4 x 2 x 0.75mm2.
Terminal 1 = Sensor supply +
Terminal 2 = Sensor signal
Terminal 3 = Sensor supply common
Terminal 4 = Sensor signal common
Terminal 5 = Drain wire/ screen
Terminal 6 = Fan 12 volt DC supply
See drawing for wiring connectors (Sheet-23 and Sheet-28)
The cable to use for wiring of alarms can be the same as used for wiring of air sensors.
If you intend to use all four alarms you will need a 4 twisted pair cable.
Glands are not supplied as we do not know what diameter cable will be used. The
Monitor is supplied with Blind Grommets.

Atmospheric Oil Mist Detection System
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Sheet-18
1. Retaining ring
2. Terminal Connecting Block
3. Bared and tinned wires
4. Socket Body
5. Cable locking nut
6. Socket locknut
CONNECTOR ASSEMBLY INSTRUCTIONS
a. Strip back cable sheathing, separate wires, twist and tin screen. Strip back the
wires, twist and tin.
b. To assemble socket, pass the prepared cable through parts 6, 5 and 4 in that
order.
c. Secure wires and screen to the correct numbered terminals of the connector
terminal block. (Also see Sheet-14)
d. Re-assemble and lock with part 1.
e. You may need to heat shrink from the cable to the connector body depending on
what cable is used.
IMPORTANT NOTES for wiring the Monitor and Sensor Connector
1. The Terminal connectors on the Triplex Power Supply PCB are numbered in
sequence from left to right – 1, 2, 3, 4, 5, 6.
2. The connector drawing (see Sheet-14) shows the terminations of the twisted
pairs and their location on the connector and the PCB,
in the WIRING TERMINATION sequence of 1, 3, 2, 4, 5, 6.
3. The ‘Common Supply’ wires MUST NOT BE INTERCHANGED. Thus - with
the first twisted pair, Supply+ goes to terminal 1 on the PCB and Connector
respectively and the common supply goes to terminal 3 on the PCB and
connector respectively as shown on the Wiring information diagram.
(See Sheet-14).
4. The recommended cable is: HELKAMA RFE – FR (0.5mm sq 4 twisted pair)
Nominal 0 Dia 11.5mm. Cut the 4th pair off.
 
  
You may require to use self
adhesive shrink sleave between
the cable and the connector body
depending on the cable used
WIRING OF SOCKET

Atmospheric Oil Mist Detection System
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Sheet-19
WIRING FOR SYSTEM LAYOUT
A TRIPLEX system with 1 Sensor will always use Wiring Option 1. However, there are
two wiring options for a TRIPLEX system with 2 or 3 Sensors. An optional unboxed
3-way PCB can be installed to reduce the size of bulkhead penetrations and the amount
of cable needed, see Wiring Option 2 below.
WIRING FROM THE TRIPLEX CMU (for both options)
Photograph of Power Supply Board (Sheet-20)
Drawings QMI-06-118: Power Supply Board (Sheet-21)
Schematic of enlarged section of Power Supply Board connectors (Q01T05) (Sheet-21)
WIRING OPTION 1 (Sheet-22 to Sheet-24)
For 1, 2, or 3 Sensors where each Sensor has individual cables connected to the
Monitor. All wiring connectors for the Sensors, alarms and power are on the Power
Supply Board.
Schematic of layout for Wiring Option 1 Sheet-22
Drawings:
QMI-06-119: Connections from Sensors to Monitor Sheet-24
QMI-06-120: Wiring from Sensors to Monitor Sheet-23
WIRING OPTION 2 (See Sheet-25 to Sheet-30)
For 2 or 3 Sensors with wiring from the Monitor to the plant room with 1 cable the
cable is wired into a PCB mounted in a junction box (supplied by the installer). Then
individual cables are run to the Sensor.
Benefits: Less cable is needed.
Schematic of layout for Wiring Option 2, see Sheet-25
Photograph of unboxed 3-way PCB for a junction box Sheet-26
Drawings:
QMI-06-115: Unboxed 3-way PCB see Sheet-25
QMI-06-117: Wiring connectors from PCB to Sensor see Sheet-28
QMI-06-116: Wiring from Junction box to Monitor See Sheet-29
QMI-06-121: Wiring from Junction box to Sensors See Sheet-30

Atmospheric Oil Mist Detection System
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Sheet-20
PHOTOGRAPH OF POWER SUPPLY BOARD (Q01T05)