Owner's manual

Section 11. Glossary
469
terminalemulatorisavailableinmostdataloggersupportsoftware
availablefromCampbellScientific.
thermistor
Athermistorisaresistiveelementwhosechangeinresistancewith
temperatureiswide,stable,andwell‐characterized.Itcanbeusedasa
devicetomeasuretemperature.Theoutputofathermistorisusually
non‐linear,someasurementrequireslinearization,usuallybymeansof
theSteinhart‐Hartoranotherpoly
nomialequation.CampbellScientific
thermistors,models107,108,and109,arelinearizedbySteinhart‐Hart
asimplementedintheTherm107(),Therm108(),andTherm109()
instructions.
throughput
Thethroughputrateistherateatwhichameasurementcanbetaken,
scaledtoengineeringunits,andthereadingstoredinadatatable.The
CR1000hastheabilitytoscansensorsatarateexceedingthe
throughputrate.Theprimaryfactoraffectingthroughputrateisthe
amountofprocessingsp
ecifiedbytheuser.Insequential‐mode
operation,allprocessingcalledforbyaninstructionmustbecompleted
beforemovingontothenextinstruction.
TTL
Transistor‐transistorlogic.Aserialprotocolusing0Vdcand5Vdcas
logicsignallevels.
TLS
Transportlayersecurity.AnInternetcommunicationssecurityprotocol.
toggle
Toreversethecurrentpowerstate.
UINT2
Datatypeusedforefficientstorageoftotalizedpulsecounts,port
status(statusof16portsstoredinonevariable,forexample)orinteger
valuesthatstorebinaryflags.
UPS
Uninterrubtablepowersupply.AUPScanbeconstructedformost
dataloggerapplicationsusingaclinepower,anac/acorac/dcwall
adapter,achargecontroller,andarechargeablebattery.