MICROHMMETERCA-10
(Cód770118)
USER’SMANUAL
(M981184-99A-GB)
(c)CIRCUTORS.A.
--MICROHMMETERCA-10PageNo1
1.-SAFETYPRECAUTIONS
1.1.-MEASUREMENT
Beforeanymeasurement,checkthattheresistancetobetestedisnotlive.
Checkthatthebatteryhasachargesufficientfortherequirementsofthe
measurement,otherwise,rechargeit.
1.2.-MAINTENANCE
Topreservetheservicelifeofthebattery,takecarenottoexceedachargetime
longerthan14hforacompletelydischargedbattery.
Beforeopeningthecase,checkthattheinstrumentisdisconnectedfromany
supplysource.Whenreplacingthebattery,reconnectthewiresaccordingtothe
polarity(+redand–black).
Whenreclosingthecase,reconnectthelinkingcablesconnectingthesupply
board,onthebackofthecase,totheupperboardmountedonthechassis.
2.PRESENTATION
TheCA10MICROHMMETERisaportable2000countdigitalohmmeter
designedforthemeasurementofverylowresistancevalues.Presentedina
robustworksitecase,theCA10MICROHMMETERisanautonomous
instrument,poweredbyacadmiumnickelbattery,withadualvoltagecharger
(110V/220V)incorporated.
6rangesfrom0-2000to200areavailabletotheuser.
TheCA10MlCROHMMETERoperatesaccordingtothe4wiremethod:aDC
currentIisinjectedthroughtheresistanceundertest,ameasurementofvoltage
Uismadeattheterminalsoftheresistance.Theinstrumentthendisplaysthe
valueoftheresistancecorrespondingtotheratioU/I.
TheCA10MICROHMMETERhasasitsprincipalapplicationtheprecise
measurementoftheresistanceofthewindingsofrotarymachinesor
transformers,switchcontacts,motorcollectors,cablejunctions,solderpoints...
3.GENERALFEATURES
3.1/CASE
Worksiteplasticcasewith5