User's Manual

Extech Instruments
26 GX900-GX930-EN V1.1 5/14
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RPMMEASUREMENTS
1. SettherotaryfunctionswitchtotheRPMposition.
2. InserttheblackleadbananaplugintothenegativeCOMjackandtheredtestlead
bananaplugintothepositiveVjack.
3. Touchthetestprobetipstothecircuitundertest.
4. ReadtheRPMvalueon
thedisplay.
COUNTERMEASUREMENTS
1. SettherotaryfunctionswitchtotheRPMposition.
2. PresstheF1key(MENU),movethemenuselectortotheitemlabeledCOUNTER,
andthenpresstheOKkey
3. MovethemenuselectortotheitemlabeledSTARTandpresstheOKkey
4. Inserttheblacktest
leadintothenegativeCOMjackandtheredtestleadintothe
positiveVjack.
5. Touchthetestprobetipstothecircuitundertest.
6. ReadthePeriodvalueonthedisplay.
7. TosettheCountThresholdpresstheF1key(MENU),movethemenuselector
to
theitemlabeledCOUNTER,andpresstheOKkey
8. MovethemenuselectortothemenuitemlabeledTHRESHOLDandpresstheOK
key
9. Enter1or2or3usingthearrowkeysandthenpresstheF1keytosave.Pressthe
F1keytoreturn
tothemeasurescreen.
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