Vemer SRG.4 Bruksanvisning
Vemer
Gasdetektor
SRG.4
Läs nedan 📖 manual på svenska för Vemer SRG.4 (2 sidor) i kategorin Gasdetektor. Denna guide var användbar för 2 personer och betygsatt med 4.5 stjärnor i genomsnitt av 2 användare
Sida 1/2

ON
SRG.4
1 2 3 4
TEST
RESET
Mod. SRG.4
V3IS00460–010
86.7
159.5
50.5
12.0
58.0
86.7
50.5 50.5
C1 S1 A1 C2 S2 A2 C3 S3 A3 C4 S4 A4
1 2 3 4
SENSORS
+ –
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20
8A / 250V 8A / 250V
1
2
V
a
c
/
d
c
Description
g
h
j
User manual
SRG.4 - CONTROL UNIT FOR GAS DETECTOR
Read all the instructions carefully
TheSRG.44isacontrolunitforthecreationofgasdetectionsystemsinareas
suchasboilerrooms,workshops,warehouses,laboratories,etc.Itisdesignedto
workwithprobessuchasCOSensor,CH4SensorandLPGSensor.Itoffersthe
possibilitytocontrolasolenoidvalveoranauxiliarydevice(siren,flasher,etc.)
usinganalarmrelaycontainedinside.ThealarmorfailureisdisplayedbyLED.
SAFETY WARNINGS
To ensure correct installation, you must comply with the following
indications:
1) The device must be installed by a competent person
2) The device must be installed in a panel where, after installation, the terminals
can no longer be accessed
3) In the electrical system up the line from the energy meter there must be a
device to protect against overloads
4) Connect the instrument following the diagrams shown in this sheet and in the
product marking
5) Before accessing the terminals, make sure the leads to connect to the
instrument are not electrically live
6) Do not power and connect the instrument if any part of it is damaged or
missing.
Codice Model Description
VE203600 SRG.4 Gasdetectorwith4connectingsensor
VE205100 CH4 SENSOR Methanedetectionsensor
VE206900 LPG SENSOR LPG sensor
VE207700 CO SENSOR Carbonmonoxidesensor
TECHNICAL CHARACTERISTICS
Control unit SRG.4
• Powersupply:
−Voltage:12Vac/dc±10%
−Powerconsumptionwith1probe:~160mA
−Powerconsumptionwith4probes:~280mA
−Connection:terminalsof2.5mm
2
−Protection:fuse1A5x20mm
• Inputs:
−4inputsforCH4Sensor(methane),LPGSensor(LPG),COSensor(CO).
−Connectionofprobes:terminalsof2.5mm
2 per probe
−Max.connectionlength:50mforeachprobe
−Cross-sectionoftheleads:1.5mm2
• Output:
−Alarm:relaywithexchangecontact8A/250VAC
−Failure:relaywithexchangecontact8A/250VAC
−Connection:terminalsof2.5mm
2forrelayC-NC-NO
• Luminoussignals: 1greenLED:powersupplied
1yellowLED:generalfailure
4yellowLED’s:failureforeachprobeline
4redLED’s:gasalarmforeachprobeline
• Reset/testbuttonforalarmresetandprobetestfunctions
• Degreeofprotection:IP20;IP40whencorrectlyinstalledinanelectricalpanel
• Ambienttemperature:0÷+50°C
• Humidity: 90%R.H.withoutcondensation≤
• Productforassemblyon9-moduleDINrails
Sensors for SRG.4 control units
• Powersupply:fromthecontrolunitSRG.4
−Currentinput(at6.5V):40mA
−Connections:terminalsof2.5mm
2forprobeC(common),S(signal),A(power6.5Vdc)
• Modelsandcalibration:
−Methanegas:CH4Sensor,(default)10%LIEofmethane
−LPG:LPGSensor,(default)12%LIEofisobutene
−Carbonmonoxide:COSensor,(default)200ppmofCO
• Container:inself-extinguishingplasticmaterial
• Fastenedtowallusingscrewsandplasticplugs
• Protection:IP30
• Ambienttemperature:0÷+50°C
• Humidity: 90%R.H.withoutcondensation≤
INSTRUMENT DESCRIPTION
Ledpowersupply
Led signaling general failure
Reset/Testbutton
Led signaling failure probes
Led signaling gas alarm
Powersupplyterminals
g
Connection probes terminals
h
Protectionfuse1A
Set-upjumper
j
Terminalsforalarmoutputrelay
Terminalsforfailureoutputrelay
INSTALLATION
Do not use the device in excess of the limits set forth in the technical data. The installer is
responsible for correct, safe installation of the product. Use care during shipping, storage
and handling.
1) Protectionofthedevice.
Toensuretheproperdegreeofprotectionoftheunit,itisnecessarytoinstallthecontrol
unitinanelectricalpanelconstructedinaccordancewithcurrentstandardsforthe
workplace,andinsideofwhichthepowersupplysystemcanalsobehoused.Thecontrol
unitcanbeinstalledatthebottomofthepanelorinDINmodularpanels.
TheLPG,COandCH4Sensorsaredesignedtobewall-mounted(vertically),usingscrews
andplasticplugs.Toproceedwithinstallation,openthecontainerbyunscrewingthe
screwlocatedontheside.Makesurenottodamagethesensorandnottotouchthe
calibration devices.
2) Installationoftheproduct.
Thecorrectinstallationoftheprobeisessentialtoproperoperationofthesystem.
Therefore,itmustbeinstalled:
–Inareaswithcirculationofnaturalair;
–Inareasthatarenotsubjecttodustordirtthatmayrenderthesensorinoperative;
–Nearjetsofwater,intakegrilles,openings,etc.
–Atanadequatedistancefromusersofgassoastopreventthesystemfromintervening
improperlyduetofunctionalleakage.
Also,positioningdependsonthetypeofgastobedetected,specifically:
–CH4:Methanegas-attop,about20-30cmfromtheceiling
–LPG:LPG-atbottom,about20-30cmfromthefloor
–CO:carbonmonoxide–about1.5mfromthefloor
Fornewsystems,theprobemustbeinstalledaslateaspossible,sothattypical
constructionsiteactivitiesdonotdamagethedetector.
Attention: make sure you check operation at least once a year, and in any case
whenever there is an extended period of disuse or in the event of replacement.
Any tampering may compromise correct operation of the system.
3) Connectionsanduseoftheproduct.
Normalelectricalcablescanbeusedforconnections.Inanycase,wheninstallationis
inplacesthatarestronglyexposedtoelectromagneticdisturbances,itisadvisableto
useshieldedcables.Thedetectionsystemmustalwaysbeinoperation.Therefore,the
electricalpowersupplyofthedetectormustnotincludeswitchesorotherdevicesthat
mayaccidentallyshutitoff.Thepowersupplyofthecontrolunitmustcomplywiththe
requiredvaluesandthecurrentinputofanydeviceconnecttotheterminalsoftherelay
mustbelessthanorequaltothemaximumcapacityofthecontacts.Theaveragelifespan
oftheprobesis5yearsfromthedateofinstallation.Therefore,attheendofthattime
theywillneedtobereplaced.
Attention: in the case in which in every single terminal block of the control
unit missed the probes, there must be a resistence of 18KOhm 1/4 W 5%
between C ans S furnisced in the box.
OPERATION
Oncethedevicehasbeeninstalled,youwillneedtoselecttheoperatinglogicusing
jumperE1.Itcanbeeitherpositiveornegative.Thecontrolunitsignalsitsoperating
statusbymeansofLED’s.
A
Position A
Positive logic
Position B
Negative logic
B
A
B
E1
E1
E1
A
B
DependingonthelogicselectedusingjumperE1,inanormalsituation(noalarms),the
LED’sandtherelaywillbe:
–positivelogic:LEDon,relayenergized
–negativelogic:LEDoff,relayde-energized
Ifnegativeoperatinglogicisselected,thealarmrelaymaybecontrolledinpermanentor
impulsivemode,dependingonthepositionofjumperE2:
A
Position A
Alarm relay
Permanent control
Position B
Alarm relay
Impulsive control
B
A
B
E2
E2
E2
A
B
Dimensions
Connection diagram
Oncepoweredon,thecontrolunitperformsthefollowingphasesinsequence:
• Buzzertest(durationabout5seconds)whichcausessequentiallightingoftheLED’sand
abriefringingofthebuzzer.
• Pre-heatingoftheprobe(whichlastsabout1minute),duringwhichthedetection
systemisnotoperationalbecausethisallowstheprobestoreachthecorrectoperating
temperature.
• Operationaltest(whichlastsabout3minutes)duringwhichthepowersupplyLED
flasheswithafrequencyof2Hzandalltimesettingsareresettozerotomakeiteasierto
checktheprobes.PresstheReset/Testforaboutonesecondtointerrupttheoperational
testphaseandchecktheprobes.
• Gasalarmtest,whichoccursbyplacingthetestspraycanneartheprobeandreleasing
asmallamountofgas.Donotdirectthespraydirectlyontothesensoroftheprobe,
asitmaydamageitirreparably.Thecontrolunitwillsignalthealarminthefollowing
manner:
Interface Positive logic Negative logic
Led for alarm (red)
of concerned probe
Off On
Alarmbuzzer Continuous sound Continuous sound
Alarmrelay De-energized Energized(permanentlyor
in impulsive mode)
PresstheReset/Testkeyforonesecondtosilencethealarm(ifthegasisnolonger
present)andendthetestphase.Torestartthetestphase,pressthecorrespondingbutton
for about 6 seconds.
• Probeanomalytest,whichistobesimulatedsimplybydisconnectingtheconcerned
probecableandcheckingthefollowingsignals:
Interface Positive logic Negative logic
Led for failure (yellow)
of concerned probe
Off On
Alarmbuzzer Intermittent sound Intermittent sound
Failurerelay De-energized Energized
Oncethetesthasbeenmade,re-connecttheprobeandpresstheReset/Testbuttonto
restorethecontrolunittonormaloperation.
Normal operation
Duringnormaloperationofthecontrolunit,boththemonitoringforgasalarmand
theself-diagnosisforplantanomalies(probes)andsystemsanomalies(controlunit)are
active.Inthisphaseandwithnoalarmsorfailures,thecontrolunitstatusisasfollows:
Interface Positive logic Negative logic
Led (green)forpowersupply On On
Led for general failure(yellow) On Off
Led for probe failure (4)(yellow) On Off
Led for general alarm and (red)
line failure (4)
On Off
Alarmbuzzer No sound No sound
Alarmrelay De-energizedEnergized
Failurerelay De-energizedEnergized
Inpresenceofgasalarmorprobefailure,thecentralunitgoesintothesameconditions
describedintherelativestestphase.
REFERENCE STANDARDS
ConformitytotheEUdirectives
2006/95/EC(LowVoltage)
89/336/ECmodifiedby92/31/ECCand93/68/EEC(E.M.C.)
isdeclaredwithreferencetothefollowingharmonisedstandard:
EN 61779-1, EN 50270
Produktspecifikationer
Varumärke: | Vemer |
Kategori: | Gasdetektor |
Modell: | SRG.4 |
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