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ix.
Protective earth terminal
Be used to connect instrument to ground.
x.
RS232C serial interface
Serial communication, realize the communication with computer.
xi.
Power jack
Be used to input AC power; please use the attached power line with fuse. Change the fuse
according to input power.
xii.
Ground break-over calibration
Ground break-over resistance is 1 ohm
,
use potentiometer to calibrate if there is deviation.
xiii.
Mark
This mark describes the instrument’s SN.
xiv.
High voltage output interface
(
optional
)
Stand-by high voltage output interface.