Strata Proximity Systems SPS-SPAD1 Hazard Warning Transmitter for Miners User Manual manual

Strata Proximity Systems LLC Hazard Warning Transmitter for Miners manual

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

2011



StrataSafetyProducts,LLC

8995RoswellRdSte200

SandySprings,GA30350

1.800.691.6601

StrataProximitySystems

SurfacePADModelHA‐S‐2200‐S

UsersManualv1.0

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StrataProximitySurfacePADmodelHA‐S‐2200‐SUsersManualv1.02011

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TableofContents

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1Overview.................................................................................................................................3

1.1TheoryofOperation.........................................................................................................3

1.2FrequencyofOperation...................................................................................................4

1.3LabelInformation.............................................................................................................4

1.4FCCInformation...............................................................................................................4

2Operation................................................................................................................................5

2.1InstallationInformation...................................................................................................5

2.1.1InteroperabilityWarning..........................................................................................5

2.2Alerts................................................................................................................................5

2.3Maintenance....................................................................................................................5

3Warranty.................................................................................................................................6

4RevisionHistory......................................................................................................................6

4.1Version1.0–September1,2011.....................................................................................6

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StrataProximitySurfacePADmodelHA‐S‐2200‐SUsersManualv1.02011

1 Overview

TheSurfacePADispartofacompleteHazardAvertproximitywarningsystemfromStrata

ProximitySystemswhichprovideswarningstobothindividualsandtovehiclesandmachinery

toalertthemthattheindividualwearingthePADhasenteredtooclosetoanoperatingpieceof

equipmentandisinadangeroussituationorthatvehiclesormachineryaregettingclose

enoughthatacollisionpossibilityexists.

1.1 TheoryofOperation

TheSurfacePADiswornbyanindividual.ThefunctionsoftheSurfacePADare:

 Todetectthepresenceofa73kHzelectromagneticfieldgeneratedbyvehiclesormachinery

equippedwiththeHazardAvertsystemandtodetermineifthefieldstrengthleveldetected

indicatesthattheindividualisinorisapproachingadangeroussituation.

 ToprovideanaudibleandvisualindicationtotheweareroftheSurfacePADthattheyare

approachingorareinadangerouslocationasaresultofthe73kHzfieldstrengthlevel.

 Totransmita916.48MHzRFsignaltovehiclesormachineryequippedwiththeHazardAvert

systemsignalingthattheindividualisenteringorhasenteredintoadangerousarearelativeto

thevehicleormachinery.

TheSurfacePADhasa73kHzreceiverthatisconstantlyonandmonitoringthestrengthof

fieldsemittedbyvehiclesandmachineryequippedwiththeHazardAvertproximityandcollision

avoidancesystem.TheSurfacePADmonitorsthestrengthofthe73kHzfieldsinthreeaxesand

determinesifthefieldstrengthhasrisentoalevelthatwouldindicatethattheindividualis

approachinga“WarningZone”orisina“DangerZone”duetobeingtooclosetothevehicleor

machinery.IftheSurfacePADdeterminesthattheindividualistooclosetothevehicleor

machinery,itgivestheindividualbothavisualandaudibleindication.Atthesametime,the

PADtransmitsa916.48MHzRFsignaltoinformthevehicleormachinerythattheindividualis

approachingtooclose.IftheSurfacePADdeterminesthatthefieldstrengthindicatesthatthe

individualisnotinaWarningorDangerZonearea,itwilltransmitadatapacketevery10

secondsviathe916.48MHzwithitsstatuscondition.



TheSurfacePadisanassemblycomprisedoffoursystemseachonaseparateprintedcircuit

board.ThePADSystemBoardcontainsthreemagneticfieldpick‐upcoilseachinaphysically

diferentaxisplace90degreesfromeachother.Thesepick‐upcoilsalongwiththeirfixedvalue

capacitorsandamplifiersforma73kHzreceiverforreceptionoffieldsgeneratedbyvehiclesor

machineryequipedwiththeHazardAvertsystem.TheSystemBoardalsohasaPIC

microcontrollerwhichreceivestheinputsfromthreedetectorswhichindependantlydetectthe

inputsfromthethree73kHxpick‐upcoils.ThePICthroughaninternalalgorithm,determinesif

the73kHzfiledisaboveapre‐programmedthreshold.



IfthePICdeterminesthatthereceivedfieldisabovethethresholdlivel,itsendsalogicsignal

anddatatoaninternalRFTransmitterBoard.TheRFTransmitterBoardcontainsaLINXTXM‐

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916‐EStransmitterIntegratedCircuit.TheTXM‐916‐ESgeneratesandfrequencymodulatesa

916.48MHzcarrierwiththedatasentfromthePICmicrocontrolleronthePADSystemBoard.

TheRFTransmitterboardhasnoalignmentprocedureastheTXM‐916‐EStreanmitterhasaself

containedcrystalcontrolledPLLoscillator.Thistransmitted916.48MHzsignalwillalertthe

vehicleormachinerythatgeneratedthe73kHzfieldthatwasreceived,thatthisparticular

SurfacePADunitiscomingwithinanunsafedistanceofthevehicleormachinery.IfthePIC

determinesthatthe73kHzfieldstrengthisbelowthethresholdlevel,itwillcausetheRF

Transmittertotransmitttheunit’sstatusandIdentificationdataonceevery10seconds.



AlongwithgeneratingtheRFsignaltoalertthemachineryordevice,theSurfacePADwillalso

alertthepersonwearingthePADwithbothanaudiblesoundandavisualindicatorthatthey

areinanareathatistoclosetothevehicleormachinery.Theaudibleandvisualindicatoraare

locatedonaWarningUnitBoardwhichisalsowithintheSurfacePAD.

1.2 FrequencyofOperation

ThePADwilltransmitasafrequencyof916.48MHzintheISMBand.

1.3 LabelInformation

TheStrataProximityPADlabelislocatedonthefrontcenteroftheunit.ApictureoftheStrata

labelisbelow:



TheStratalabeldefinedthemanufacturingaddress,modelnumberandserialnumberofthe

PAD.MSHABlastingDistance

1.4 FCCInformation

TheFCCIDfortheStrataSurfacePADisZQ3‐SPS‐SPAD1.WhenconfiguredbyStrataforbelow‐

grounduse,thedevicecomplieswithPart15oftheFCCRules.Operationissubjecttothe

followingconditions:(1)Thisdevicemaynotcauseharmfulinterference.(2)Thisdevicemust

acceptanyinterferencereceivedincludinginterferencethatmaycauseundesiredoperation.



AnyintentionalorunintentionalchangesormodificationstotheconfigurationoftheStrata

ProximitySurfacePADnotspecificallydetailedinthisdocument,couldvoidtheuser’sauthority

tooperatetheequipement.

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NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against

harmful interference in a residential installation. This equipment generates, uses and can radiate radio

frequency energy and, if not installed and used in accordance with the instructions, may cause harmful

interference to radio communications. However, there is no guarantee that interference will not occur in

a particular installation. If this equipment does cause harmful interference to radio or television

reception, which can be determined by turning the equipment off and on, the user is encouraged to try to

correct the interference by one or more of the following measures:

-- Reorient or relocate the receiving antenna.

-- Increase the separation between the equipment and receiver.

-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-- Consult the dealer or an experienced radio/TV technician for help.

2 Operation

2.1 InstallationInformation

ThePADistobewornontheprotectivehelmetsofworkers.ThePADshouldbeatleast3”or

75mmfromallotherelectronicdevicessuchasSpotters,COsensors,trackingdevices,etc.

AfterplacingthePADontheoperatorship,performanceoftheunitshouldbeverifiedatthe

StrataProximitycheck‐outstation.

2.1.1 InteroperabilityWarning

TheStrataProximityPADmayexperienceerraticresponseswheninverycloseproximityto

someelectronicdevices.Electricaldevicesmaytransmitanelectricalfieldandnoisefromthese

fieldsmaycauseinterferencewiththePAD’sreception.AsafeguidelineistokeepPADatleast

75mmawayfromanyelectricaldevicesincludedbutnotlimitedtomethanemonitor,radio,

mobilephone,PDA,batterychargerandlaptop.

2.2 Alerts

WhenthePADisconnectedtotheStrataBatteryandsoundingpack,thePADwillalerttheuser

withbothanaudiblesoundandavisualindicatorthattheyareinanareathatistoclosetothe

vehicleormachinery.OncethePADhasdeterminedthattheuseristooclosetothemachine,

itwillbegintowarntheuser.Mulitplelevelsofwarningareprovided.TheTypicalsettingisto

giveawarningthattheuserisenterstheWarningZoneandthen,asthemachineaprroaches

closerandthePADcrossesintotheDangerZone.



2.3 Maintenance

ThePADshouldbecleanedaftereachusetoensureallbuttonsandconnectorsarefreeofall

dustanddirt.

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3 Warranty

Initialsystemhardwarecomponentswillbewarrantedtobefreeofdefectsforaperiodofone

(1)yearfrominservicedate.Subsequentcomponentpurchaseswillbewarrantedoneyear

fromreceiptacknowledgement.Warrantedreplacementorrepairisnotapplicableincasesof

physicaldamageorabuseasdeterminedatthetimeofreturnorinspection.

4 RevisionHistory

4.1 Version1.0–September1,2011

Originalrelease.Norevisionhistory



Strata Proximity Systems SPS-SPAD1 Hazard Warning Transmitter for Miners User Manual manual

Strata Proximity Systems LLC Hazard Warning Transmitter for Miners manual

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