Product Manual

FLIRCM55_CM57USERGUIDEDocumentIdentifier:CM55_CM57‐en‐US_AB

5.4ACCurrentMeasurements

WARNING:EnsurethatpowertothedeviceundertestisOFFbeforestartingthisprocedure.

SwitchpowertothedeviceundertestONonlyaftertheclamphasbeensafelyattachedtothe

deviceundertest.

CAUTION:DonotmovefingersabovetheLCDatanytimeduringatest.



1. SwitchthemeterOFFandswitchpowertothedeviceundertest

OFF.

2. Turntheclamplock(1)counter‐clockwisetoreleasetheflexible

clamp(2).

3. Fullyencloseonlyoneconductorofthedeviceundertestwiththe

flexibleclampprobe(seediagrambelowforCorrectandIncorrect



usage).

4. Re‐securetheclamplock(1)afterclampingaroundasingle

conductor.

5. Donotattempttomeasurecurrenthigherthanthespecified

currentlimit.

6. SwitchthemeterONandthenswitchpowertothedeviceunder

testON.Nevermovefingersabovethedisplay

areawhen

runningatest.

7. Readthecurrentvalueinthedisplay;‘OL’will

displayifthemeasuredsignalexceedstherange.ThemeterdefaultstotheAutoRange

mode;theAutoRangeicon isvisibleonthedisplay.Themeterwillautomaticallyselect

theappropriaterangewheninAutoRangemode.

8. Tomanuallyselecttherange,usetheRANGEbuttontostepthroughtheavailableranges

(30.00A/300.0A/3000A).





Fig.5‐1Unlock/LockClampJaw

Fig.5‐2Correct(left)andIncorrect(right)

ConductorClamping