Extech Instruments GX900 Manual

A SERVICE OF

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ExtechInstruments

26 GX900-EU-EN V1.6 4/14

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AUTOMATICANDMANUALRANGING

PresstheF3key(RANGE)toopentheRangemenu.PressF1key(AUTO)toenablethe

Auto Range mode. Press F2 key (MANUAL) to enable

theManualRangemode. IntheManualRangemode,

movethemenuselectortothedesiredrange.

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ACANDDCSIGNALS

This meter is capable of displaying both AC and DC

signalcomponents(voltageorcurrent)astwoseparatereadingsoroneAC+DC(RMS)

valuecombined.ThemeterdisplaysACandDCcombinationsthreeways:

 DCdisplayedoverAC(DC,AC)

 ACdisplayedoverDC(AC,DC)

 ACcombined

withDC(AC+DC)

Select one of the above combinations using the FUNCTION and MODE menu as

describedinthestepsbelow:

1. WiththerotaryswitchsettoV,mV,A,mA,oruApressthekeylabeledMENU

2. MovethemenuselectortothemenuitemlabeledMATH

3. PressOK

4. Thethreelabels(AC+DC,AC/DC,andDC/AC)willappear

5. Movethemenuselectortothedesiredmenulabel

6. PressOK

While in any of the three modes described above Peak Measurements, Frequency,

DutyCycle,MAX‐MIN,Relative%,andPeriodMeasurementsarenotavailablefor

use.

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