Vemer SRG.4 Bruksanvisning

Läs gratis den bruksanvisning för Vemer SRG.4 (2 sidor) i kategorin Gasdetektor. Guiden har ansetts hjälpsam av 14 personer och har ett genomsnittsbetyg på 5.0 stjärnor baserat på 7 recensioner. Har du en fråga om Vemer SRG.4 eller vill du ställa frågor till andra användare av produkten? Ställ en fråga

ON

SRG.4

12

34

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

A1C2

S2

A2

C3

S3

A3C4

S4

A4

12

3

4

SENSORS

+–

1

2345678

91011121314151617181920

8A / 250V

8A / 250V

1

2

V

a

c

/

d

c

FaultAlarm

Power supply

Description







g

h







j

User manual

SRG.4 - CONTROL UNIT FOR GAS DETECTOR

Read all the instructions carefully

TheSRG.44isacontrolunitforthecreationofgasdetectionsystemsinareas

suchasboilerrooms,workshops,warehouses,laboratories,etc.Itisdesignedto

workwithprobessuchasCOSensor,CH4SensorandLPGSensor.Itoffersthe

possibilitytocontrolasolenoidvalveoranauxiliarydevice(siren,flasher,etc.)

usinganalarmrelaycontainedinside.ThealarmorfailureisdisplayedbyLED.

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 Gasdetectorwith4connectingsensor

VE205100 CH4 SENSOR Methanedetectionsensor

VE206900 LPG SENSORLPG sensor

VE207700 CO SENSOR Carbonmonoxidesensor

TECHNICAL CHARACTERISTICS

Control unit SRG.4

•Powersupply:

−Voltage:12Vac/dc±10%

−Powerconsumptionwith1probe:~160mA

−Powerconsumptionwith4probes:~280mA

−Connection:terminalsof2.5mm

2

−Protection:fuse1A5x20mm

•Inputs:

−4inputsforCH4Sensor(methane),LPGSensor(LPG),COSensor(CO).

−Connectionofprobes:terminalsof2.5mm

2

per probe

−Max.connectionlength:50mforeachprobe

−Cross-sectionoftheleads:1.5mm

2

•Output:

−Alarm:relaywithexchangecontact8A/250VAC

−Failure:relaywithexchangecontact8A/250VAC

−Connection:terminalsof2.5mm

2

forrelayC-NC-NO

•Luminoussignals:1greenLED:powersupplied

1yellowLED:generalfailure

4yellowLED’s:failureforeachprobeline

4redLED’s:gasalarmforeachprobeline

•Reset/testbuttonforalarmresetandprobetestfunctions

•Degreeofprotection:IP20;IP40whencorrectlyinstalledinanelectricalpanel

•Ambienttemperature:0÷+50°C

•Humidity:90%R.H.withoutcondensation≤

•Productforassemblyon9-moduleDINrails

Sensors for SRG.4 control units

•Powersupply:fromthecontrolunitSRG.4

−Currentinput(at6.5V):40mA

−Connections:terminalsof2.5mm

2

forprobeC(common),S(signal),A(power6.5Vdc)

•Modelsandcalibration:

−Methanegas:CH4Sensor,(default)10%LIEofmethane

−LPG:LPGSensor,(default)12%LIEofisobutene

−Carbonmonoxide:COSensor,(default)200ppmofCO

•Container:inself-extinguishingplasticmaterial

•Fastenedtowallusingscrewsandplasticplugs

•Protection:IP30

•Ambienttemperature:0÷+50°C

•Humidity:90%R.H.withoutcondensation≤

INSTRUMENT DESCRIPTION



Ledpowersupply



Led signaling general failure



Reset/Testbutton



Led signaling failure probes



Led signaling gas alarm



Powersupplyterminals

g

Connection probes terminals

h

Protectionfuse1A



Set-upjumper

j

Terminalsforalarmoutputrelay



Terminalsforfailureoutputrelay

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)Protectionofthedevice.

Toensuretheproperdegreeofprotectionoftheunit,itisnecessarytoinstallthecontrol

unitinanelectricalpanelconstructedinaccordancewithcurrentstandardsforthe

workplace,andinsideofwhichthepowersupplysystemcanalsobehoused.Thecontrol

unitcanbeinstalledatthebottomofthepanelorinDINmodularpanels.

TheLPG,COandCH4Sensorsaredesignedtobewall-mounted(vertically),usingscrews

andplasticplugs.Toproceedwithinstallation,openthecontainerbyunscrewingthe

screwlocatedontheside.Makesurenottodamagethesensorandnottotouchthe

calibration devices.

2)Installationoftheproduct.

Thecorrectinstallationoftheprobeisessentialtoproperoperationofthesystem.

Therefore,itmustbeinstalled:

–Inareaswithcirculationofnaturalair;

–Inareasthatarenotsubjecttodustordirtthatmayrenderthesensorinoperative;

–Nearjetsofwater,intakegrilles,openings,etc.

–Atanadequatedistancefromusersofgassoastopreventthesystemfromintervening

improperlyduetofunctionalleakage.

Also,positioningdependsonthetypeofgastobedetected,specifically:

–CH4:Methanegas-attop,about20-30cmfromtheceiling

–LPG:LPG-atbottom,about20-30cmfromthefloor

–CO:carbonmonoxide–about1.5mfromthefloor

Fornewsystems,theprobemustbeinstalledaslateaspossible,sothattypical

constructionsiteactivitiesdonotdamagethedetector.

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)Connectionsanduseoftheproduct.

Normalelectricalcablescanbeusedforconnections.Inanycase,wheninstallationis

inplacesthatarestronglyexposedtoelectromagneticdisturbances,itisadvisableto

useshieldedcables.Thedetectionsystemmustalwaysbeinoperation.Therefore,the

electricalpowersupplyofthedetectormustnotincludeswitchesorotherdevicesthat

mayaccidentallyshutitoff.Thepowersupplyofthecontrolunitmustcomplywiththe

requiredvaluesandthecurrentinputofanydeviceconnecttotheterminalsoftherelay

mustbelessthanorequaltothemaximumcapacityofthecontacts.Theaveragelifespan

oftheprobesis5yearsfromthedateofinstallation.Therefore,attheendofthattime

theywillneedtobereplaced.

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

Oncethedevicehasbeeninstalled,youwillneedtoselecttheoperatinglogicusing

jumperE1.Itcanbeeitherpositiveornegative.Thecontrolunitsignalsitsoperating

statusbymeansofLED’s.

A

Position A

Positive logic

Position B

Negative logic

B

A

B

E1

E1

E1

A

B

DependingonthelogicselectedusingjumperE1,inanormalsituation(noalarms),the

LED’sandtherelaywillbe:

–positivelogic:LEDon,relayenergized

–negativelogic:LEDoff,relayde-energized

Ifnegativeoperatinglogicisselected,thealarmrelaymaybecontrolledinpermanentor

impulsivemode,dependingonthepositionofjumperE2:

A

Position A

Alarm relay

Permanent control

Position B

Alarm relay

Impulsive control

B

A

B

E2

E2

E2

A

B

Dimensions

Connection diagram

Oncepoweredon,thecontrolunitperformsthefollowingphasesinsequence:

•Buzzertest(durationabout5seconds)whichcausessequentiallightingoftheLED’sand

abriefringingofthebuzzer.

•Pre-heatingoftheprobe(whichlastsabout1minute),duringwhichthedetection

systemisnotoperationalbecausethisallowstheprobestoreachthecorrectoperating

temperature.

•Operationaltest(whichlastsabout3minutes)duringwhichthepowersupplyLED

flasheswithafrequencyof2Hzandalltimesettingsareresettozerotomakeiteasierto

checktheprobes.PresstheReset/Testforaboutonesecondtointerrupttheoperational

testphaseandchecktheprobes.

•Gasalarmtest,whichoccursbyplacingthetestspraycanneartheprobeandreleasing

asmallamountofgas.Donotdirectthespraydirectlyontothesensoroftheprobe,

asitmaydamageitirreparably.Thecontrolunitwillsignalthealarminthefollowing

manner:

InterfacePositive logicNegative logic

Led for alarm (red)

of concerned probe

OffOn

AlarmbuzzerContinuous soundContinuous sound

AlarmrelayDe-energizedEnergized(permanentlyor

in impulsive mode)

PresstheReset/Testkeyforonesecondtosilencethealarm(ifthegasisnolonger

present)andendthetestphase.Torestartthetestphase,pressthecorrespondingbutton

for about 6 seconds.

•Probeanomalytest,whichistobesimulatedsimplybydisconnectingtheconcerned

probecableandcheckingthefollowingsignals:

InterfacePositive logicNegative logic

Led for failure (yellow)

of concerned probe

OffOn

AlarmbuzzerIntermittent soundIntermittent sound

FailurerelayDe-energizedEnergized

Oncethetesthasbeenmade,re-connecttheprobeandpresstheReset/Testbuttonto

restorethecontrolunittonormaloperation.

Normal operation

Duringnormaloperationofthecontrolunit,boththemonitoringforgasalarmand

theself-diagnosisforplantanomalies(probes)andsystemsanomalies(controlunit)are

active.Inthisphaseandwithnoalarmsorfailures,thecontrolunitstatusisasfollows:

InterfacePositive logicNegative logic

Led (green)forpowersupply

On On

Led for general failure(yellow)

On Off

Led for probe failure (4)(yellow)

OnOff

Led for general alarm and (red)

line failure (4)

OnOff

AlarmbuzzerNo soundNo sound

AlarmrelayDe-energizedEnergized

FailurerelayDe-energizedEnergized

Inpresenceofgasalarmorprobefailure,thecentralunitgoesintothesameconditions

describedintherelativestestphase.

REFERENCE STANDARDS

ConformitytotheEUdirectives

2006/95/EC(LowVoltage)

89/336/ECmodifiedby92/31/ECCand93/68/EEC(E.M.C.)

isdeclaredwithreferencetothefollowingharmonisedstandard:

EN 61779-1, EN 50270

Produktspecifikationer