BeaconMedaes Medipoint 125 Troubleshooting guide

Operation and Maintenance Instructions
Medical Gas Central Alarm
Medipoint 125 - Digital Alarm
Part number 4233500107
Revision 03
Jan, 2021

Atlas Copco Medical Ltd.
Telford Crescent, Staveley, Derbyshire, S43 3PF, UK
Personnel must make themselves familiar with the contents of this manual and the
function of the unit before installing, operating or maintaining.
Operation and Maintenance Manual
Medical Gas Central Alarm - Medipoint 125 Digital Alarm
This unit is purchased from:
Date purchased:
Model number:
Serial number:
Any information, service or spare parts requests should include the serial number and be directed to:
BeaconMedæs
Telford Crescent, Staveley
Derbyshire S43 3PF
Telephone: [phone]
Email: [email protected]
Website Contacts: www.beaconmedaes.com
BeaconMedæs reserves the right to make changes and improvements to update products sold previously without
notice or obligation.
Abbreviations
Abbreviation Full Description Abbreviation Full Description
BS British Standard Max Maximum
BSP British Standard Pipe Med Medical
CO2 Carbon dioxide MP26D Medipoint 26 Digital Alarm
°C Degree Celsius mMetre
øDiameter mm Millimetres
EN European Standards Min Minimum
1st First N2 Nitrogen
HTM Health Technical Memorandum N2O Nitrous oxide
ID Identication NRV Non-return valve
“Inch OD Outside Diameter
ISO International Standard Organisation O2 Oxygen
Kg Kilograms %Percentage
kPa Kilo pascals 2nd Second

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Medical Gas Central Alarm - Medipoint 125 Digital Alarm
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Table of Contents
1.0 General Information.
1.1  Introduction.
1.2  Standards
1.3  AlarmPanels
1.4  Visualdisplays
1.5  Audiblewarning
1.6  Printedcircuitboards
1.7  Alarmcontactlinefault
1.8  Gasserviceconnections
1.9  DataConnection
1.10  Remoteaudiblewarningdevices
2.0 Installation
2.1  Installationofarstxpanel
2.2  InstallationofaSecondFixAssembly
3.0 Alarm Conguration.
3.1  DateTimesetup
3.2  MainScreen
3.3  AlarmSetupmenus
3.4  AlarmSetupScreen1
3.5  Gasservicesetupmainscreen
3.6  ExitSetupScreen
3.7  CongurationMenuMap
4.0 Commissioning
4.1  Alarmpaneltest
4.2  Checkingtheslaverelayoutput
4.3  Checkingtheremoteaudiblewarning
4.4  Medicalgasalarmfaults.
4.5  CheckingtheSYSTEMALARMindication
4.6  Finalcheck
5.0 Operation of the Medipoint 125
Digital medical gas area alarm
5.1  Useroperation
5.2  Additionaltechnicalfunctions
6.0 Maintenance Procedures
6.1  Replacementofalarmpanel
components
7.0 Maintenance Schedules
7.1  Weeklyinspection
7.2  Quarterlyinspection
7.3  5yearmaintenance
8.0 Recommended Spares
Products covered within this manual.
Part Number Description
MainProductgroup
8102371401 Medipoint125DigitalAlarm(MP125D)
1826481 MedicalGasAlarm1stFixbackbox
1826484 MedicalGasAlarmBezel

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Safety Precautions
WARNING! DO NOT USE OIL OR GREASE on
any parts in contact with the medical gases for any
reason. This could lead to a FIRE or an EXPLOSION.
Only use approved OXYGEN COMPATIBLE lubricants,
which can be purchased from BeaconMedæs if
necessary.
Operatorshouldhavecarefullyreadandbecomefamiliar
withthecontentsofthismanualbeforemaintainingthe
Medipoint125DigitalAlarm.
Operator is expected to use common sense safety
precautions, good workmanship practices and follow
anyrelatedlocalsafetyprecautions.
Componentdescriptionsandpartslistsareavailableon
request.
Identication of symbols

Thefollowingsymbolsapplytothisproductandareused
intheseinstructionsandontheproductinquestion.The
meaningsofthesesymbolsareasspeciedbelow:-
Readinstructions
Ambienttemperaturerange
Ambienthumidityrange
Ambientpressurerange
Dateofmanufacture
Donotdisposeofingeneralwaste
Electromagnetic Interference
The panel has been tested to BS EN 61326-1-
Electromagneticcompatibility-Requirementsandtests.
Environmental Transport and Storage
Conditions
All products are separately packaged and stored in
controlledconditions.
Environmental Operating Conditions
Adverseenvironmentalconditionsandharshabrasives
orchemicalsmaycausedamagetotheunit.
Environmental Protection
Discard the unit and/or components in any standard
refusefacility.Theunitdoesnotcontainandhazardous
substances.
Cleaning
Thealarmcovershouldbewipedoverwithadampcloth
frequentlytoremoveanydustorforeignsubstances.
Electrical Details
 CAUTION!Itisnecessarytochecktheintegrityof
thepowersourceforsafetyat regular intervals. These
checksshouldbecarriedoutannuallyandreplacement
powersuppliesusedasnecessary.
Powersource
Mains operated using 110V-230V, 50/60Hz, alternating
current.
Cablesize:
Frequency Voltage Minimum Cable Size
50Hz 230V 3x1.5mm2
60Hz 110V 33AWG14
Currentrequirements-3.0amps
Typeofprotectionagainstelectricshock.
Class 1 (Mains supplied equipment using a protected
earth).
RelativeHumidity90%max.
Altitudeupto2000m
PollusionDegree2
Modeofoperation:
• Indooruse.
• Continuous (equipment may be left switched on
indenitely).
Note - A double pole fused isolation switch or circuit
breaker must be installed locally to the medical gas
alarm. The isolationpoint must beclearly marked for
theequipmentitisintendedfor,andwithineasyreach.
The switch must require a tool or key to operate to
preventunauthorizedisolationofthedevice.

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Medipoint125consistsof:-
No. Description
Control Fascia
1PoweronLED.
2Temperarymutebutton.
3SystemFaultLED.
4Testbutton.
LCD Touch Screen
5Informationscreen.
6Dataloggingscreen.
7SettupMenus.
8Alarmservicelocation.
9Emergencybatterysupplystatus.
10 Gasservicetype
11 Gasservicecolouridenticationbar
12 Gasservicestatusarea
13 Indicationthatdate/timeisnotset
14 Muteactivated
1. General Information.
1.1 Introduction.
The BEACONMEDÆS Medipoint 125 digital (MP125D)
medicalgascentalalarmissuitableforboththeUnited
Kingdom and International markets, and fully satises
the requirements the requirements of the HTM02-01,
HTM2022andISO7396-1applications..
TheCentralAlarmisdenedinISO7396-1as‘‘Operating
Alarms’. The intention of the alarm is to indicate to
technical sta that it is necessary to replenish the gas
supplyortocorrectamalfunctionwithintheMedicalGas
PipelineSystemthatrequiresanimmediateresponse.
EachalarmpanelrequiresastandardACelectricalpower
supplyof115/230volts±10%at50or60Hz,andfused
at3Amps.
Thecentralalarmcanbeprogrammedfromonscreen
menustoprovideafullyexiblealarmsystem.Allowing
thepanelstobeadaptedtosuitanyhospital’smedical
gas monitoring requirements (see section 1.12 for
programmingdetails).
Anindividualcentralalarmpanelhas5inputsorupto
1
4
2
3
6columnsfordisplayingasarepeaterpanelconsisting
of‘normal’and4‘fault’conditions.Thesecolumnscan
besetuptomonitoreitherupto5medicalgassource
equipment, or up to 20 individual point alarms, or a
combinationofthe2.
Onecentralalarmpanelisdesignatedthemasterpanel
for control purposes. Any number of panels may be
programmedasa‘centralacknowledgepanel’andcause
allashingdisplaysonthesystemtochangetosteady
when the MUTE switch on the central acknowledge
panelisoperated.
Each central alarm panel incorporates ashing alarm
displays, a POWER ON indication, a SYSTEM ALARM
indication, MUTE and TEST switches and an audible
warning programmed to operate depending upon the
9
12
10
11
5 6 7
8
Figure 1 - Medipoint125DigitalAlarm (MP125D).
13 14
Safety Notice
Personsundertakinganyinstallationand/ormaintenance
mustbefullytrainedinspecialistworkofthisnature.
The“PERMITTOWORK”proceduremustbeadheredto
forallinstallationsoncecommissioned.
ThealarmisdesignedandbuiltinaccordancewithHTM
02-01andISO7396-1regulationsandthereforeshould
beinstalledassuch.

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Medical Gas Central Alarm - Medipoint 125 Digital Alarm
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Figure 2 - Medipoint125DigitalAlarm Components.
1 42
3
Medipoint125consistsof:-
No. Description
1Alarmenclosurehingeddoor.
2LCDtouchscreen.
3Controlfascia.
4Securityaccessfastener.
5Enclosurebackbox.
6PowersupplyPCB.
7ProcessorPCB.
8Speaker.
9Controlfasciamountingplate.
10 LCDscreenclamp.
11 PCBribboncableconnections.
12 LCDscreencableconnection.
13 Speakerconnection.
14 Controlfasciaconnection.
15 Batterypackconnection.
16 Earthbondingpoints.
17 Maintenancemutebutton
7 568 9
10 16
12 14 11
16
13
15
alarm condition displayed (see gure 1 for operating
interface image). Alarm panels are interconnected
by data transmission cable. Relay interface units are
availabletoinputconditionsintoexistingalarmsystems
orbuildingmanagementsystems.
Thealarmpanelalsoconstantlymonitorstheintegrityof
the internal circuits, interconnected wiring and system
monitoringsourceequipment.Intheeventofanydefect
within the monitored functions, the SYSTEM ALARM
LED illuminates (ashing) accompanied by the audible
warning, and the defective gas service alarm display
statusbarilluminates.
An internal maintenance push-button is provided
for use when the plant or pipeline is shut-down for
prolonged periods (see See gure 2). This facility
enables’permanent’mutingoftheaudiblewarningfor
aparticulargasserviceandisautomaticallyresetwhen
pipeline pressure returns to NORMAL or a new fault
statusoccurs.
Seegure2foridenticationofmaincomponents.
Figure3showstheelectricalconnections.
1.2 Standards
Centralalarmpanelsarefullytestedpriortodispatchand
packedtoprovide maximum protectionduringtransit.
Thealarmpanelsaredesignedtooperateinanambient
temperature of between 0°C and +40°C. Component
assemblies must be stored in their packaging in dry
conditionsandstoragetemperaturesmustbebetween
-10°C and +50°C. Alarm panel enclosures can only be
accessed with the use of a tool, mains terminals have
recessedscrewstopreventngercontactevenwiththe
dooropen,andelectricallybondedtoearthisprovideto
backboxanddoorforasafeinstallation.
17

7
Medical Gas Central Alarm - Medipoint 125 Digital Alarm
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CONFIDENTIAL:
copied, used for manufacturing or communicated to any other person or company.
This document is our property and shall not without our permission be altered,
ATLAS COPCO STANDARD Class
Tolerances,if not indicated,according to:
Modified from
tion
Note Posi- Intr./Appd.
Date Parent 3D Model
Kg
Version Drwg
Des checked
STATUS
Material
Treatment
Name
Drawn by
Scale
Kg
Family
Blank nr.
Approved
Prod checked
Blank wt.
Date
Fini wt.
Drawing owner
Designation Sheet ( )
Secrecy Class
1102 K/
Replaces
Compare
ACD
Ed.Version 3D
12356 7 8 9
G
4 10
A
B
C
D
E
F
1
MEDIPOINT125 DIGITAL ELECTRICAL SERVICE DIAGRAM
ISSUED
A3
2
GCF
0101
4233500119
09/08/2020
PB
N/A
PB
09/08/2020IAR10067 - FIRST ISSUE
1.0
Figure 3 - Electrical Schematic Diagram

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Medical Gas Central Alarm - Medipoint 125 Digital Alarm
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1.3 Alarm Panels
Each alarm panel consists of a rst and second x
assembly, and are suitable for use with either surface
orconcealedinstallations.Abezelplateisprovidedfor
usewithconcealedinstallationsandisttedtotherst
xassemblytogiveaneatappearancebycoveringthe
plasterjoint.Thefrontcoveroftheenclosureishinged
and retained by a security fastener, which prevents
unauthorisedaccess(seegure4).
The assembly contains two printed circuit boards and
provides a gas service display from the LCD touch
screen. Each gas service is displayed in the NORMAL
(green,steady)anduptofourfaultconditions(yellowor
red,ashing)alarmconditions toshowthegasservice
status.Allalarmconditionsareilluminatedbyaashing
display and accompanied by an audible warning. Each
alarmpanellocatesallelectricalcomponentsoneither
the power supply or processor printed circuit boards,
whichareinterconnectedbyaribboncable.
OveralldimensionsaredetailedatTable1&Figure3.
TABLE 1: Medipoint 125 – DIMENSIONS
AlarmPanel Bezel
Height(mm) 150.0 200.0
Length(mm) 260.0 310.0
Depth(mm) 61.8 1.2
Chasedepth(mm) 45.0 -
Figure 4 -Medipoint 125 assembly
Medipoint125consistsof:-
No. Description
12ndxalarmPanel.
21stxbackbox.
3Flushmountedbezel.
4Securityaccessfastener.
1
2
3
4
Figure 5 - Medipoint 125 dimension drawing
VIEW A
VIEW B
VIEW C
A
B
C
45
150
17
30 200 30
2 x 20 CABLE GLAND KNOCKOUTS
17
50 40 40 40 40 50
260
2 x 20 CABLE GLAND KNOCKOUTS

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1.4 Visual displays
Colour LCD touch screen display provides the visual
display detailed in paragraph 1.1, gure 1. All ashing
displaysashatarateof0.4secondson,0.4secondso
inaccordancewithISO7396-1andHTM02-01/HTM2022.
1.5 Audible warning
Theaudiblewarningspeakerttedtotheinsideofthe
alarmpaneldoorandconnectedtotheprocessorPCBby
plugandsocket(seegure2)operatessimultaneously
with any HIGH PRESSURE, LOW PRESSURE or SYSTEM
ALARMindication. The audiblewarning may bemuted
bypressingtheMUTEswitch(seegure1).Iffollowing
a mute condition another alarm condition occurs, the
audible warning will operate simultaneously with the
indication.Followingamuteconditionandacontinuing
alarmindication,theaudiblewarningwillresoundafter
15minutesinaccordancewithHTM02-01/HTM2022and
C11. When the audible re-sounds further operation of
theMUTEswitchisnecessarytocanceltheaudible.
If following an alarm condition no action is taken to
MUTEtheaudible,theaudiblewarningwillautomatically
switchowhenthealarmconditionrevertstoNORMAL.
The audible tone consists of a modulation between
twotones(F1andF2).F1=440HzandF2=880Hz.The
modulationrateis4HzinaccordancewithHTM02-01/
HTM2022andC11.
1.6 Printed circuit boards
Twoprintedcircuitboardsarettedinsidemedicalgas
centralalarm;apowersupplyPCBandaprocessorPCB.
AllcomponentsaremountedonthesePCB’s,whichare
interconnected by means of a multi-way ribbon cable
and polarised connector (see gure 2 & 3). The area
central alarm internal electrical installation complies
with all relevant British Standard specications, IET
wiringregulationsandcurrentUKlegislation.
1.6.1 Processorprintedcircuitboard
The Processor PCB is retained inside the alarm panel
frontcoverwithfourretainingstuds.ThisPCBissupplied
witharibboncableforconnectiontothepowersupply
PCB,andconnectorforlinkingtothecontrolfascia,LCD
touchscreenandinternalspeaker(seegure6).
Theblockindicatorisaplug-incomponentenablingeasy
replacementorsubsequentupdatingoftheinstallation.
Theribboncableispermanentlyattachedtotherearface
ofthelightdisplayPCBandenablesinterconnectionof
circuitswiththepowersupplyPCB.Theaudiblewarning
speaker is connected by plug and socket to the light
display PCB and locates within the alarm panel front
coverwheninstalled.
1.6.2Displaypositions
Toprovideanaestheticdisplayandmaintainconsistency
inaccordancewithrecognisedandestablishedmedical
gasservicesequencing,itisrecommendedthatdisplays
arepositionedinthefollowingsequenceoneachalarm
panelcommencingwithfromlefttoright(seegure7
example):-
Gas Type Legend
MedicalOxygen O2
NitrousOxide N2O
Oxygen/NitrousOxideMix(50/50) O2/N2O
MedicalAir400kPa Air
MedicalAir700kPa Air-800
MedicalVacuum Vacuum
Figure 6 - Processor PCB
1
2
3 4
Medipoint125consistsof:-
No. Description
1ProcesstopowersupplyPCBribboncable
2Controlfasciaconnector
3LCDtouchscreenconnector
4Audiblespeakerconnector
Figure 7 - Gas source layout example.

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1.6.2 Powersupplyprintedcircuitboard
ThepowersupplyPCBisretainedinsidethealarmpanel
backboxwithfourretainingstudsandconnectstothe
processor PCB multi-way ribbon cable by polarised
connectors. The power supply PCB incorporates four
mains terminals (2 Earth, Neutral and Live, see gure
8) connected to a matching plug/socket combination
to accept the mains electrical power supply, which
preferably should be from an essential circuit, and
enablesconnectionofyingearthleadswhichelectrically
bondtheassembly.
Alterprotectsthealarmsystemfrompossiblespikes
ordisturbancesoftheincomingelectricalpowersupply
andanintegraltransformerprovides24Vd.c.Supplies
to operate the alarm circuits and power the pressure
sensors. A 5x20mm fuses to BS EN 60127 protect the
power supply circuits. F1 is rated at 500mA for 230V
suppliesand(seegure8).
In order to prevent inadvertent cross connection, the
mains electrical power supply plug and socket is not
mechanically compatible with any other connection to
thePCB.
A miniature ’Maintenance Mute’ push button (see
gure 8) is tted on the power supply PCB and is
accessiblewiththealarmpanelfrontcoveropen.With
an alarm condition displayed, operation of this button
’permanently’ disables audible reinstatement for that
particular displayed alarm condition only. This facility
isdesignedforusewhentheplantorpipelineisshut-
o for a prolonged period. On returning the pipeline
pressuretoNORMALthisfeatureautomaticallyre-sets
withoutfurthermanualselection.
Each channel (designated 1 to 5) incorporates ve
terminals (gure 8) which are for connecting to the
medicalgassourceequipment.
Arelay(completewithoptionallinecontactmonitoring
circuit)suitableforswitching50Vandamaximumof0.5
Amps is tted to the power supply PCB (see gure 8).
Therelayhasvoltfree,normallyopencontactsandtwo
terminals(N/OandC)enableconnectionbyamatching
plug/socket combination to either a Medipoint central
alarmsystemorothersuitablesystem.Thelinecontact
monitoring circuit can be from the on screen setup
menus. The relay is de-energised and contacts open
when any of the twelve alarm conditions are initiated.
Terminalsare also provided to enableconnection of a
remote audible warning device (AUD+ and AUD-) (see
gure8).
Itisrecommendedthattheinputcablesfromthesource
equipmentanddatatransmissionareinstalledseparate
fromthemainscable.
Figure 8 - Power supply PCB.
Mains
Fuse[F1]
Mains
Filter
24VDC
Powersupply
Remote Audible
Connection [+] [-]
Output Relay For Transmitting Single Event Alarm
[COMMON] [N/O]
Gas Service Connections, Channel 1-5
Data Transmission connections
IN [A] [B], out [A] [B] and [Screen]
Main Power Connection
[BONDING EARTH]
[MAINS EARTH]
[NEUTRAL] [LIVE]
Maintenance
Mute
Multiwayribboncable
connectortoprocessorPCB
Backup
BatteryPack
EndofLine
Resistors
Switches

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Communication terminals IN [A][B], OUT [A][B] and
Screen[S]areprovidedtolinktheinputalarmtorepeater
units.Endoflineresisterdipswitchesaremountedon
thePCBtobesettoONfortherstandlastalarminthe
networkchain.
1.6.3 Standbybattery
ThepowersupplyPCB alsocontainsastandbybattery
(seegure8),batterychargingandpowerfaildetection
circuits.ThebatteryprovidespowerforboththeSYSTEM
ALARMindicationandtheaudiblewarningintheevent
ofanelectricalpowerfailure.Thebatteryisfullycharged
after72hoursandprovidessucientpowertooperate
thespecicalarmindicationsforaminimumof4hours.
Thebatteryisexpectedtohaveaminimum5yearlife.
1.7 Alarm contact line fault
Integrity of the interconnecting wiring and pressure
sensorsareconstantlymonitoredbythefaultdetection
circuits.Thefaultdetectioncircuitisdesignedtodetect
an wiring fault or in the data transmission network as
wellasconnections to source equipment.Inthe event
of a line fault the Power LED remains illuminated, the
SYSTEM ALARM indicator will illuminate (ashing) and
the audible warning sounds.  The aected gas service
badge status bar will turn red (steady).   When a line
contact fault is detected the ash rate of the aected
gas fault slows to half speed when the TEST switch is
operated.
1.8 Gas service connections
The5gasserviceconnectionshave5terminalseach.See
table2fordetailsforstandardoptions.Eachgasservice
andfaultlegendisalsofullycustomisablethroughthe
onscreensetupmenus.
TABLE 2: GAS SERVICE CONNECTION TERMINALS
Equipment
Type FaultType C 1234
AirPlant
Common ü
PlantFault ü
PlantEmergency ü
Reservelow ü
PressureFault ü
Vacuum
Plant
Common ü
PlantFault ü
PlantEmergency ü
NotUsed 
PressureFault ü
Manifolds
Common ü
ChangeCylinders ü
ChangeImmediately ü
Reservelow ü
PressureFault ü
VIE
Common ü
LiquidLow ü
FillImmediately ü
Reservelow ü
PressureFault ü
1.9 Data Connection
Thepower supply PCB incorporatesa data connection
thatallowsslavecentralalarmtobeconnectedwithdata
cable.Theseslavepanelswillrepeatthesignalsreceived
from the master panel, allowing additional panels to
beinstalledformonitoringthroughout thehospital,or
insideoperatingtheatrepanels(seegure8).
1.10 Remote audible warning
devices
Remote audible warning devices may be tted in
locations where warnings are necessary and alarm
panels are not tted. Remote audible warning devices
arehousedinasurfacemountedenclosurecontaininga
warningbuzzer.Theaudiblewarningdeviceisconnected
byinputcabletothepowersupplyPCBwithinthealarm
panel (alarm terminals AUD+ and AUD-) (see gure
8). When the alarm panel audible sounds the remote
audiblealsosounds.Amaximumoffourremoteaudible
warningdevicescanbettedtoanalarmpanelandthe
totalcablelengthshouldnotexceed50metres.
MP125D
Channel1
C1234
Figure 9 - Source equipment connection, example air
plant.
Common
PlantFault
PlantEmergency
Reservelow
PressureFault
AlarmOutputs
Air Plant

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2. Installation
2.1 Installation of a rst x panel
Thealarmpanelbackboxissuitableforbothsurfaceand
concealed installation and is annotated ‘TOP’ inside to
ensurecorrectorientation.Withaconcealedinstallation
achasedepthof45mmisrequiredandabezelistted
tocovertheplasterjoint.Theproceduretoinstallarst
xalarmpanelbackboxisasfollows:-
2.1.1 Backbox.Locate(seegure10).
Ensure the backbox is the correct way up. Locate
the backbox at the correct position and mark out for
securingscrews.
2.1.2 Wall.Fitanchors.
Drillwallandtanchorsinposition.
 CAUTION! Ensure selected wall anchors are
suitable for the type of wall and weight of the alarm
panel.Alarmpanelweightis1.5kg.
2.1.3 Backbox.Fit(seegure10).
Select cable entry/exit points and remove the desired
knock-out segments from the inside. Fit suitable
grommets/cable glands as required by the contract
specication.Feedcablesintotheboxleaving400mmto
75
150
105 105 7
260
5
TOP
40 40 40 40
17
20
KNOCKOUT SEGMENTS
200
17
45
20
KNOCKOUT SEGMENTS
BACKBOX SURFACE
Figure10-BackBoxdetails.
enableconnectiontoprintedcircuitboard.Secureback
boxtowallwithsuitablescrews.
Select cable entry/exit points and remove the desired
knock-out segments from the inside. Fit suitable
grommets/cable glands as required by the contract
specication.Feedcablesintotheboxleaving400mmto
enableconnectiontoprintedcircuitboard.Secureback
boxtowallwithsuitablescrews.
 CAUTION!  With a concealed installation, the
plasterdepthmustbeushwiththeboxsurface,leaving
thewaterchannelproudoftheplaster.
2.2 Installation of a Second Fix
Assembly

WARNING! Ensure that the electrical power
supply to the alarm is o and remains isolated until
required during the commissioning procedure.
2.2.1 Backbox.Check.
Ensurethattheinsideofthebackboxiscleanandfree
fromdebris.
Fitbezelplatetobackboxandretainwithsecuringscrew
engagedinrighthandanchornut.
Concealedinstallation.Fitbezelplate(seegure11).

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310
200
25 (ALL ROUND)
45
1.20
Figure11-Bezeldetails.
BEZEL
BACKBOX
SECURINGSCREW
(M4x12PANHEAD)
2.2.2 Powersupplycircuitboard.Fit(seegure12).
Fitaplasticspacerovereachofthefourretainingstuds
inthebackboxandlocatetheboardonthestuds.Fitthe
washersandtighten nuts inplacejust enough to hold
theboard.
CAUTION! Printed circuit boards are
susceptible to damage by static electricity and must
remain enclosed in their anti-static packaging until
immediately required for use. Removed printed
circuit boards must be placed in their anti-static
packaging immediately on removal. To prevent
damage to printed circuit boards, handle with care
and do not over torque retaining nuts.
Figure12-PowersupplyPCBinstallation.
No. Description QTY
1BackBox(1stxsupply) N/A
2PowersupplyPCB(2ndx,suppliedloose) 1
3PCBSpacer(2ndx,suppliedloose) 4
4M3Nut(2ndx,suppliedloose) 4
5M3Washer(2ndx,suppliedloose) 4
CONFIDENTIAL: This document is our property and shall not without our permission be altered,
copied, used for manufacturing or communicated to any other person or company.
1 2 3 4 5678 9 10 11
A
B
C
D
E
F
G
H
Parent 3D Model 8102371401_MP125_01_Install
All materials supplied are in compliance with the
requirements of the List of Prohibited Substances
Title:
Material:
Finish:
Status
Work in Progress
REMOVE ALL BURR AND
SHARP EDGES UNLESS
OTHERWISE STATED
DO NOT SCALE
IF IN DOUBT ASK
---
As per order
DIMENSIONS IN MILLIMETERS
TOLERANCES UNLESS OTHERWISE
STATEDMACH. FAB.
0.25 1.0
0.1
0.05
0.5
0.5
1.0
-
NO DECIMAL PLACE:
ONE DECIMAL PLACE:
TWO DECIMAL PLACE:
ANGULAR:
SURFACE FINISH:
A3
DRAWING SCALE: 1 : 1.5
Third angle
DRAWING OWNER
SHEET:
PART NUMBER:
8102371401_MP125
_
11 OF
PGC CODE:
GBNPBA
Revision history
Zone Rev Description IAR No.Drawn By Checked By Approved Date
1
23
5
4

14
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Figure13-2ndxdoorinstallation.
2.2.3 Alarmpanelfrontcover.Fit(seegure13).
Securethe2ndx door to backboxangebysecuring
hinge to backbox with screws provided.  Plug in the
ribbon cable from the processor PCB to the power
supplyPCB No. Description QTY
12ndFixdoor(2ndxsuppliedassembled) 1
2M4x12panhead(2ndx,suppliedloose) 2
3M4washer(2ndx,suppliedloose) 2
2.2.4 EarthBonding.
Connection the earth cable assembly to the power
supply terminal block and earth stud on the backbox
andalarmdoorassembly.Seegure14.
Figure14-Earthbondingconnections
No. Description QTY
1Earthcable(2ndx,suppliedassembled) 1
2M3xNut(2ndx,suppliedloose) 4
3M3washer(2ndx,suppliedloose) 4
Typicalearthstudassembly
22
3
1
Alarm Door
Earth Stud
Backbox
Earth Stud
Power Supply
Terminal Block
CONFIDENTIAL: This document is our property and shall not without our permission be altered,
copied, used for manufacturing or communicated to any other person or company.
1 2 3 4 5678 9 10 11
A
B
C
D
E
F
G
H
Parent 3D Model 8102371401_MP125_Open
All materials supplied are in compliance with the
requirements of the List of Prohibited Substances
Title:
Material:
Finish:
Status
Work in Progress
REMOVE ALL BURR AND
SHARP EDGES UNLESS
OTHERWISE STATED
DO NOT SCALE
IF IN DOUBT ASK
---
As per order
DIMENSIONS IN MILLIMETERS
TOLERANCES UNLESS OTHERWISE
STATEDMACH. FAB.
0.25 1.0
0.1
0.05
0.5
0.5
1.0
-
NO DECIMAL PLACE:
ONE DECIMAL PLACE:
TWO DECIMAL PLACE:
ANGULAR:
SURFACE FINISH:
A3
DRAWING SCALE: 1 : 1.5
Third angle
DRAWING OWNER
SHEET:
PART NUMBER:
8102371401_MP125
_
11 OF
PGC CODE:
GBNPBA
Revision history
Zone Rev Description IAR No.Drawn By Checked By Approved Date
1 2 3
Ribbon Cable connections

15
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2.2.5 MultiplePanelDataConnection(seegure15
andtable3).
For multi-panel installations link the alarms together
usingtheIN[A][B]andOUT[A][B]inachainasshown
ingure15.
Forthetwopanelsattheendpointsofthenetworkthe
termination resistor should be switched “ON” with S1.
Forallotherpanels,S1shouldbeswitched“OFF”.See
gure15.
The alarm uses the EIA/TIA-485 (RS-485) data
communicationsspecication.Cableusedforthealarm
datamustbesuitableforthesesignals.Thefollowcable
typesarerecommends,seetable3.
TABLE3:RECOMMENDEDDATACABLE
Manufacturer / Reference Part Number
Belden8132(2pr,Non-Plenum) 2005421
Belden82842(2pr,Plenum)
Alphawire6455(2pr,Non-Plenum)
Figure15-Alarmdataconnection.
MP125D (1)
S1:ON
IN OUT
ABABS
MP125D (2)
S1:OFF
IN OUT
ABABS
MP125D (3)
S1:ON
IN OUT
ABABS
Note - “S” terminal is for connecting the screen
cable.
2.2.6 Remoteaudible(s).Connect(seegure16).
Connect remote audible device(s), if tted, to power
supplyPCBplug(terminals+and-).
Remote Audible
Connection [+] [-]
Figure16-Remoteaudibleconnection.
2.2.7 Alarmoutputfaultrelayconnection(seegure
17)
For outputting an alarm fault to another MP125D or
alternativealarmsconnecttothe“Salve”powersupply
plug.
Data Transmission connections
IN [A] [B], out [A] [B] and [Screen] End of line switch
[S1]
Figure17-Outputalarmrelaysignalconnection.
Output Relay For Transmitting Single Event Alarm
[COMMON] [N/O]
2.2.8 Sourceequipmentalarmconnections(seegure
18)
Sourceequipmentalarmconnectionsareconnectedto
Channel1throughtoChannel5powersupplyplug.
Gas Service Connections, Channel 1-5
Figure 18 - Source equipment alarm electrical
connections.

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See table 4 and gure 19 for dierent wiring
congurations.
TABLE4:GAS SERVICE CONNECTION TERMINALS
Equipment
Type FaultType C 1234
AirPlant
Common ü
PlantFault ü
PlantEmergency ü
Reservelow ü
PressureFault ü
Vacuum
Plant
Common ü
PlantFault ü
PlantEmergency ü
NotUsed 
PressureFault ü
Manifolds
Common ü
ChangeCylinders ü
ChangeImmediately ü
Reservelow ü
PressureFault ü
VIE
Common ü
LiquidLow ü
FillImmediately ü
Reservelow ü
PressureFault ü
Figure20-Electricalpowersupplyconnection.
Main Power Connection
[BONDING EARTH]
[MAINS EARTH]
[NEUTRAL] [LIVE]
Backup Battery
Connection
2.2.9 Electricalpowersupply.Connect(seegure20).
Ifthealarmpanelisnottobecommissionedimmediately,
disconnectthestandbybattery.
Connectelectricalpowersupplywirestoelectricalpower
supplyplug(terminalsE,NandL).
1
2
Figure21-Alarmdoorsecurityfastener.
No. Description QTY
1Securityfastener(2ndx,suppliedloose) 1
2Retainingwasher(2ndx,suppliedloose) 1
WARNING! The connection to the electrical
power supply should only be carried out by a
suitably qualied electrician, and tested in line with
national electrical safety standards before the unit
is powered up.
2.2.10 Backupbattories(Figure20).
Fitthe4AAArechargablebatteries.
2.2.11 SecurityFastener.Fit(gure21)
Fitthespecialfastenerandretainingpiecetothecover.
Closethefrontcoverandsecurewithspecialfastener.
MP125D
Channel1
C1234
Figure 19 - Source equipment connection, example air
plant.
Common
PlantFault
PlantEmergency
Reservelow
PressureFault
AlarmOutputs
Air Plant
Backup Batteries

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3. Alarm Conguration.
WARNING! Personnel carrying out the
following procedure must be qualied and fully
conversant with the information contained in this
manual.
WARNING! Before commencing the alarm
conguration ensure that all installation procedures
are complete and that all wiring is correctly
connected. Before switching on the mains electrical
power supply, ensure the supply is correctly fused.
Allcongurationfunctionsaresetupwithinthesoftware
setupscreensusingtheLCDtouchscreen.
Aftercompletingallpointswithinsection2thealarmcan
bepoweredup.
Seesection3.8foranoverviewofthesetupconguration
menumap.
3.1 Date Time setup (Figure 22)
ThealarmwillstartupontheDate/Timesetupscreen.
Note...
• Thedate&timewillnotaectthefunctionalityof
thealarm,itisonlyrequiredfrothedatalogging.
• Ifanalarmconditionoccursthedatetimescreen
the unit will automatically take you to the main
screen.
• If the date/time is not set the main screen will
showacalendericoninyellow.
Figure22-Date/Timesetup.
SpecialCharacters/Icons:
Icon Description
EnterKey
TABkey.
Movestonexteldandhighlightstext.Highlighted
textwillbeoverwrittenonnextkeypress.
Tickkey.
Applyupdate,andtakesyoutothemainscreen.
Press on the rst eld (Day), hold down to highlight
current text ready to overwrite. Use the num-pad to
entertheday.
PresstheTABkeytogotothenexteld(Month).Use
thenum-padtoenterthemonth.
Repeatfrothefollowingelds,year>hours>minutes>
seconds.
PresstheTickkeywhencomplete,whichwilltakeyouto
themainscreen.
3.2 Main Screen (Figure 23).
Fromthemainscreenyoucanaccessthesetupmenus,
logscreenandinfoscreen.
Figure23-Mainscreen
SpecialCharacters/Icons:
Icon Description
Date/TimeIcon.
OnlydisplayediftheDate/Timehasnotbeensetup.
Datetimecanbesetfromthe“SettingsMenus”
InfoIcon.
Takesyoutotheinfoscreen
LogsIcon.
Takesyoutothelogsscreens.
SettingsIcon.
Takesyoutothesettingsmenuscreens.
Fromthemainscreenpressonthe“InfoIcon” togo
totheInfoscreen(Detailedintheoperatinginstructions
section).
Press on the “Logs Icon”  to go to the Logs Screen
(Detailedintheoperatinginstructionssection).
Pressonthe“SettingsIcon” togotothesetupmenus
(Detailedinthefollowingsections).
3.3 Alarm Setup menus.
Press the “Settings icon”  to go to the alarm setup
menuscreen.

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ThiswilltakeyoutothePasswordScreen.Seegure25.
Figure25-PasswordScreen
Usethenum-padtoenterthe4digitnumericalpassword
(Default:1234).
Press the ENTER  key to conrm the password and
takeyoutothesetupmenus.
SettupmenusstartontheAlarmsetup1screen.
Figure26-Alarmsetup1screen
SpecialCharacters/Icons:
Icon Description
PreviousIcon.
Takesyoutothepreviousmenusscreen.
NextIcon.
Takesyoutothenextmenusscreen.
ExitIcon.
Takesyoubacktothemainscreen.
RejectIcon.
Rejectschanges.
AcceptIcon.
AcceptsChanges
From the “Alarm setup 1” screen click the “Next Icon”
 to go to the “Gas service setup” screen, press the
“PreviousIcon” togotothe“Alarmsetup2”screen,or
pressthe“ExitIcon” togobacktothemainoperating
screen.
3.4 Alarm Setup Screen 1 (Figure
26).
Thefollowingstepsdescribesthesetupprocessforthe
alarmsetupscreen1.
3.4.1 Date:
Pressonthersteld(Day),thenum-padwillappear.
Holddowntohighlightcurrenttextreadytooverwrite.
Usethenum-padtoentertheday.
PresstheTAB keytogotothenexteld(Month).Use
thenum-padtoenterthemonth.
PresstheTAB keytogotothenexteld(Year).Use
thenum-padtoentertheyear.
PresstheENTER keyorpressanywhereonthescreen
awayfromtheNUM-PADtoremovetheNUM-PAD.
3.4.2 Time.
Pressonthersteld(Hours),thenum-padwillappear.
Holddowntohighlightcurrenttextreadytooverwrite.
Usethenum-padtoenterthehours.
PresstheTAB keytogotothenexteld(Minutes).
Usethenum-padtoentertheminutes.
PresstheTAB keytogoothenexteld(Seconds).
Usethenum-padtoentertheseconds.

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PresstheENTER keyorpressanywhereonthescreen
awayfromtheNUM-PADtoremovetheNUM-PAD.
3.4.3 PanelID:
ThiseldsetsthealarmIDnumberusedforidentication
withinanalarmnetwork.Allalarmsconnectedwithina
networkmusthaveauniqueIDnumber.
Press the up arrow to increase the ID number, down
arrowtoreducetheIDnumber.
3.4.4 Language:
Press on the down arrow to show the drop down list.
Pressureonthelanguageofchoicetoselect.
Note-CurrentlyEnglishonlyisavailable.
3.4.5 RelayMode.
Thiseldsetstheslaverelayoutputconditiontoeither
normally open or Line Contact Monitoring (LCM), see
section2.2.7.
Presson the left or rightarrow toswitch between the
twooptions.
3.4.6 NewPassword&Conrm.
Thiseldsetsthenewpasswordforaccessingthesetup
menusscreensanddatalogscreens.
Pressonthersteld(Newpassword),thenum-padwill
appear.
Usethenum-padtoenterthenewnumericalpassword.
Press the TAB  key, or press the next eld to go to
thenexteld(Conrm).Usethenum-padtoenterthe
passwordagain.
PresstheENTER keyorpressanywhereonthescreen
awayfromtheNUM-PADtoremovetheNUM-PAD.
3.4.7 InputPanel.
Thisoptiondeterminesifthealarmpanelisthemaster
panelonthenetwork.Thereshouldonlybeonemaster
alarmpanelonthenetwork.Themasterpanelshallbe
setasthehighestalarmIDnumber.Thedefaultsetting
isticked.
Selectthetickboxtosetaccordingly.
3.4.8 MasterMute.
Thisoptiondeterminesifthe master mute function as
perHTMisactivatedonthispanel.
If the master mute is active and the mute button is
pressure during a fault condition, all fault conditions
stopashingonallalarmpanelsonthenetwork.This
istoindicatetoallareasonthe networkthatthefault
hasbeendetectedandbeingattendedtoo.Thedefault
settingisunchecked.
Selectthetickboxtoselectaccordingly.
3.4.9 GraphicsDarkMode.
This option determines the alarm panel main screen
coloursceme.
Selectthetickboxtoselectaccordingly,whichwilltoggle
betweenthefollowingtypicalmainscreen.
Typicaldarkmodeview

20
Medical Gas Central Alarm - Medipoint 125 Digital Alarm
4233500107.03
Typicalnormalmodeview
3.4.10 Conrm/rejectchanges.
Clickthetick toconrmandsavethechanges.Click
the cross  to cancel the changes.  The following
message box will appear to conrm the changes have
beensavedorrejectedaccordingly.
Clickthewindowtoclosetheconrmationmessage.
3.5 Gas service setup main screen
(gure 27).
Thefollowingstepsdescribesthesetupprocessforthe
maingasservicesetupscreen.
Figure27-MainGasServiceSetupscreen.
SpecialCharacters/Icons:
Icon Description
PreviousIcon.
Takesyoutothepreviousmenusscreen.
NextIcon.
Takesyoutothenextmenusscreen.
ExitIcon.
Takesyoubacktothemainscreen.
AddGasserviceBadge.
Takesyoubacktothegasservicesetupscreen.
3.5.1 GasServiceBadgeSetupScreen(Figure28).
Thefollowingstepsdescribesthesetupprocessforeach
gasservicebadge.
Figure28-GasServicebadgeSetupscreen.
3.5.2 GasTypeSelection(Figure29).
Press on the “Select” icon  to open the
GasTypeSelectionScreen
Figure29-GasTypeSelectionscreen.