User Manual

44
1080 N. Crooks Road • Clawson, MI 48017 • 800.635.0289 • 248.435.0700 • Fax [phone] • www.ametekapt.com
AUTOMATION & PROCESS
TECHNOLOGIES
955
955DQ BRIK Gen III Magnetostrictive LDT
In A Low Profile Package
The955DQBRIKisanaccurate,auto-tuning,non-
contactlineardisplacementtransducerinan
economical,lowprolepackagewithdirectquadrature
output.
Thisnewmethodofinterfacingmagnetrostrictive
transducersoffersaninterfaceascommonas
analogbutwiththespeedandaccuracyofpulsed
typesignaling.TheGemco955DQlineartransducer
providesquadratureoutputdirectlyfromthetransducer
tothecontroller.Theoutputfromthetransducercanbe
wireddirectlytoanyincrementalencoderinputcard,
withouttheneedforaspecialconvertermoduleora
PLCinterfacecarddesignedspecicallyforusewitha
pulsedoutputmagnetostrictivetransducer.
Thestreamlinedanodizedaluminumextrusionhouses
thesensingelementandelectronics.TheBRIKwith
quadratureoutputisaself-containedunitanddoes
nothaveacanorheadassembly.Alloftheelectronics
areincorporatedinthetransducerwhichislessthan
oneinchdeep.Themagnetslideisdesignedtomove
effortlesslyalongthetransducerinaguidetrackora
oatingmagnetassemblycanbepositionedabovethe
unit.
The955DQBRIKhasafewtrulyuniquefeatures.First,
theLDThasauto-tuningcapability.Thisistheabiliyto
senseamagnetotherthanthestandardslidemagnet
andadjustitssignalstrengthaccordingly.Another
featureisadiagnosticLEDlocatedattheconnectorend
oftheprobethatremainsgreenwhenagoodmagnet
signalispresentandpowerisnormal.TheLEDturns
redwhenthereisnomagnetpresentorthemagnet
assemblyisoutofthesensingarea.
The955DQLDTcanbeorderedwith1-9999cyclesper
inchofoutputresolutioninlengthsof5to180inches.
Thetransducerfeaturesaninputtore-zerotheprobe
“on-the-y”.Anotheruniquefeatureisthe“burst”mode.
Aninputonthetransducertriggersadatatransferofall
theincrementalpositiondatarelativetothecustomers
setzeroposition.Thiscanbeusedtoachieveabsolute
positionupdateswhenpowerisrestoredtothesystem,
eliminatingthetimeconsumingneedto“re-home”the
machine.
Specifications
Input Voltage
13.5 to 30 VDC
Current Draw
2.5 Watts Maximum,
120mA @ 15 VDC Typical
Output
Quadrature Output A+, A-, B+, B-, Z+, Z-
Line Drivers: 5V or Input Power
Resolution
0.001”
Linearity
+/- 0.05% of Stroke
Repeatbility
+/- 0.006% of Full Stroke
Hysteresis
+/- 0.02% of Full Scale
Update
50” or less
51” to 100”
101” to 150”
151” to 180”
1ms (Stroke Lengths 5” to 50”)
2ms (Stroke Lengths 51” to 100”)
3ms (Stroke Lengths 101” to 150”)
4ms (Stroke Lengths 151” to 180”)
Operating Temperature
-20° to 70° C
Span Length
5” to 180”
Null Zone
3.00”
Dead Band
2.00”
LED
Green = Power is applied and magnet is present
Red = Fault, magnet is in the Dead Band or lost
Connector
Standard 12 Pin Micro (Option E)
12mm Euro Connector
or 10 Pin HRS (Option H)
Approvals
CE
Enclosure
IP67, IP68 Optional (Connector Option E Only)
Specications are subject to change without notice.
Specications are based on a typical 36” LDT.