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Features
•Programexecutionrateofupto100Hz
•16-bitanalogtodigitalconversions
•16-bitmicrocontrollerwith32-bitinternal
CPUarchitecture
•Temperaturecompensatedreal-timeclock
•Backgroundsystemcalibrationforaccuratemea-
surementsovertimeandtemperaturechanges
•GasDischargeTube(GDT)protectedinputs
•Datavaluesstoredintableswithatimestamp
andrecordnumber
•4Mbytesdatastoragememory
•Battery-backedSRAMandclockthatensure
data,programs,andaccuratetimearemain-
tainedwhiletheCR3000isdisconnectedfrom
itsmainpowersource
•Serialcommunicationswithserialsensorsand
devicessupportedviaI/Oportpairs
•PakBus®,Modbus,DNP3,TCP/IP,FTP,and
SMTPprotocolssupported
Operating System/Logic Control
eon-boardoperatingsystemincludesmeasurement,
processing,andoutputinstructionsforprogrammingthe
datalogger.eprogramminglanguage,CRBasic,uses
aBASIC-likesyntax.Measurementinstructionsspecic
tobridgecongurations,voltageoutputs,thermocouples,
andpulse/frequencysignalsareincluded.Processing
instructionssupportalgebraic,statistical,andtranscen-
dentalfunctionsforon-siteprocessing.Outputinstruc-
tionsprocessdataovertimeandcontrolexternaldevices.
Transient Protection
GasDischargeTube(GDT)protectstheinputsfrom
electricaltransients.eCR3000isCEcompliant
undertheEuropeanUnion’sEMCDirective,meeting
ESD,EMC,FastTransientstandards.
Operating Temperature Ranges
Standardoperatingrangeis-25°to+50°C;anextended
rangeof-40°to+85°Cisavailable.Batterybaseshave
dierenttemperatureranges(seeBatteryBaseOptions).
CR3000 Micrologger®
The CR3000 Micrologger® is a compact, rugged, powerful datalogger. Housed in a portable, self-contained package, the Micrologger
consists of measurement and control electronics, communication ports, keyboard, display, power supply, and carrying handle. The
CR3000’s low power requirements allow extended eld use from a dc voltage source.
CS I/O Port—connects data
transfer peripherals such as
phone, RF, short-haul, and
multidrop modems.
Keyboard—allows on-
site program editing and
command entries.
Removable Power
Terminal—simplies
connection to exter-
nal power supply.
Peripheral Port—allows data to be
stored on a CompactFlash card or
supports Ethernet communications.
Backlit LCD—provides
a graphical or 8-line nu-
meric data display.
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Removable Input/Output Connections—Individually cong-
ured for ratiometric resistive bridge, thermocouple, switch closure,
high frequency pulse, low-level ac, serial sensors, and more.
Computer RS-232—pro-
vides a 9-pin electrically
isolated DCE port.
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