Extech Instruments EX355

EX35x‐en‐GB_V1.212/15
14
Non‐ContactVoltageDetector
WARNING:Itispossibleforvoltagetobepresentinacircuitevenifthemeterdoesnot
beeporflashtheNCVLEDlampatthetopofthemeter.Alwaysverifymeteroperationona
knownliveACcurrentcircuitandverifythatthebatteriesarefreshbeforeuse.
Theaudiblebeeper sounds andtheLEDlampatthetop of themeterflasheswhen the meter
sensesanelectricalvoltagefield.
IfthemeterdoesnotemitatoneorflashtheLEDinthismode,thereisstillthepossibilitythat
voltageispresent.Pleaseusecaution.
1.
TurnthefunctionswitchtotheNCVpositiontoaccesstheNon‐ContactVoltageDetect
mode.
2. EFisdisplayedwheninthismodeisselected.
3. Totest,placethemeternearasourceofelectricalenergy.Notethatthetipofthe
meteroffersthehighestsensitivity.
4.
Ifavoltageisdetected,themeterwillbeep,theNCVLEDwillflashandoneormore“‐“
willappearonthedisplay.Forhigherdetectedvoltagesthebeepandflashratewill
increaseandthenumberof“‐“willincrease.


Fig4‐5NON‐CONTACTVOLTAGEDETECTOR
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