1. Introduction & Safety Prescriptions
Thankyoufor buyingthe DVM52tT ! Pleasereadfre manual c arefullybeforebringing thisdeviceintoservice.
Themeterwas designed a ccording t o IEC348andaccording t o IEC-IOIO concerning t hesafetyrequirements for
electronic measuring instumentswithan overvoltage c ategory (CATII)andpollution 2. Thismanual c ontainsa
number o f safetyprescriptions t hatmustbefollowed tothe letter.Readtheseinstructions b eforeusingthe device!!
Injury ordeath canoccur evenwithlowvoltages a ndlowcurrent. C onsequently it isextremely i mportant thatyou
readthesesafetyinstructions b eforeusingyourdevice.Followall safetyandoperating procedures a s described in
this manual.
Protect y ourself a gainstelectroshocks.
Do not usethis devicefor any otherapplicationthan thosedescribedin this manual.
Makesure the devicewasnot damagedin transit.
Makesure the insulaüonof the test leads is not damagedand/orthe wire itself is not exposed.
Fullcompliance wit) safetystandards canonlybeguaranteed if thedeviceis usedwiththesuppliedtestleads.If
necessary, t heyshould be replacedwithidenticalleadsor leadswithidenticalelectricratings.All test leads
shouldbe in good workingorder.
Neverexceedthe specifiedlimitvaluesfor the various measurement r anges.
Do not touch unused terminals when the meter is connected to a circuit.
•
Do not measurevoltages> 1000Vaboveearthground.
Exerciseextremecautionwhenworkingwithvoltagesin excessof 60VDCor 30VrmsAC. Keepyourfingers
behind tie probebarriers whileusingthedevice.
Do notconnectthe leadsto a voltagesourcewhilethe functionswitchis in one of the followingmodes: insulation
•
resistance, r esistanceor continuity.
Neverperformmeasurements on live.circuits.
Disconnect a ll test leadsfrom the circuitto be tested priorto selectinga differentfunctionor range.
Havethe devicecheckedby a qualifiedtechnicianin case of malfunction.
Neverusethe meterif the back panelis notin place andfirmly fixed.
•
Do not useor storethe devicein areasexposedto directsunlight,high temperaturesor high humidity.
2. Symbols
Importantinformationwithreferenceto safety,consultthe manual!
Doubleinsulation(Protectionclass II)
Earthground
Low battery
DVM521T
DVM521T - Digital Insulation Tester
AC (alternatingcurrent)
DC (directcurrent)
Continuitybuzzer
1
e•ßßeman
components
VELLEMAN