User's Manual

TagExciterInstallationManual 07‐00051‐110

©
2010GuardRFIDProprietaryandConfidential
ThistableprovidesTagExcitercurrentconsumption
andLFfieldsizeforeachof16possiblesettings.
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Thesemeasurementsaredoneunderthefollowingconditions:
PowerSupply 12.3VDC
Tagused: PT1
LFAntenna:
TagLFantennaisorientedin
parallelwithoneofthecoilsofTag
Exciter

LFFieldSettings
Setting
Current
consumption
(A)
Range(feet)
0 0.06 2.0±0.5
1 0.06 3.5±0.5
2 0.09 5.0±1
3 0.13 6.0±1.5
4 0.08 7.0±1.5
5 0.09 8.0±2.0
6 0.11 10.0±2.0
7 0.17 11.0±2.0
8 0.25 12.0±2.5
9 0.33 13.0±2.5
A 0.42 14.0±2.5
B 0.50 15.0±3.0
C 0.52 16.0±3.5
D 0.58 17.0±3.5
E 0.68 18.0±4.0
F 0.85 19.0±4.0
SettingtheProperTEFieldSize
ThereareothermanyusesfortheTEsuchaspinpointinglocationofthetag,room
discriminationordeterminingdirectionoftravel.TheTEfieldisadjustedinthesamemanner
forallapplications.TestingtheTEfieldsizeandadjustingforthedesireddetectionareais
criticaltoproperoperation
ofsomesystems.CaremustbetakenwhenadjustingtheTEfield
sizetoensureitwilldetectatagexitingthroughadoorbutnotexceedinglylargesothatit
intrudesonadjoiningroomsorareaswhereyoudonotwanttagstobedetected.
Thissectionassumesthat
theTEisusedatadoortodetectatagasitpassesthroughthe
doorway.