Manual

20
2. OPERATION
 Forclampswithseveralranges,settheswitchtothehighestrange.
 Connecttheclamptothemeasuringinstrument.
If it is not possible to power down the installation, the clamp must be set up and withdrawn in
strictcompliancewiththeapplicablesafetyinstructions.
Theclampmustalwaysbeconnectedtoameasuringinstrumentbeforeenclosingaconductor.
 Opentheclamp’sjawsbybringingthearmsclosertogether.Enclosetheconductor(s)carryingthe
currenttobemeasured.Closethejawsbylightlyclickingthemtogether.
For optimum measurement quality, centre the conductor as precisely as possible in the middle
ofthejaws.Makesuretheconductorisperpendiculartothejaws.
Asfaraspossible,keepawayfromotherconductorswhichcouldgeneratespuriouselds.
 ReadthemeasurementontheinstrumentandapplythereadingcoefcienttothemeasurementinA
ac
.
Clamp Coefcient
D30NetD30CN  x3,000
D31N 500A
ac
range x500
1,000A
ac
range x1,000
1500A
ac
range x1500
D32N 1,000A
ac
range x1,000
2,000A
ac
range x2,000
3,000A
ac
range x3,000
D33N  x600
D34N 500A
ac
range x100
1,000A
ac
range x200
1500A
ac
range x300
D35N 1,000A
ac
range x200
2,000A
ac
range x400
3,000A
ac
range x600
D36N  x1,000
If necessary, withdraw the clamp from the conductor, change the range and then reposition on the
conductor.
 Whenyouhavenishedmeasuring,removetheclampfromtheconductorandthendisconnectthe
measuringinstrument.