XT2640OperatingManual 13July2016 Page21of187
9.2 1ØWIRINGUSINGEXTERNALCURRENTMEASUREMENT
CAUTION:
FORANA:ATYPECT:USEWITHSH,SD,AH,AD,LH,LD,WHORWDCHANNELSONLY
FORANA:VTYPECTORASHUNT:USEWITHSX,AX,LXORWXCHANNELSONLY
DONOTCONNECTWIRINGWHILEVOLTAGEPRESENT.
ENSURE
WIRINGISCORRECTBEFOREAPPLYINGVOLTAGE.
WIRING:
Thickerconnectionsarecurrentcarrying.Ensurewireusedisratedforthemaximumvoltageandcurrenttobe
encountered.
Thinnerconnectionsarenotcurrentcarrying.Ensurewireusedisratedforthemaximumvoltagetobeencountered.
ManyCTdevicesareisolating,inthosecasesyoushouldgroundtheA‐(BLUE)terminalofthechanneliftheCTdoesnot
groundit.
XT2640CONFIGURATION:
IntheXT2640MEASCONFIGmenuyoushouldappropriatelysetSCALEforthechanneltosuittheCTorshuntbeingused
(bothascalefactorandanoffsetareavailable).
A
V
L or
HI
N or
LO
L or
HI
N or
LO
From
SOURCE
To
LOAD
XT2640
CH
CT
+ -