Inspection and Installation 
  Copyright © Itech Electronic Co., Ltd.  11 
⚫  Option Opt.1: 220V ±10%    50Hz/60Hz   
⚫  Option Opt.2: 110V ±10%    50Hz/60Hz   
Input voltage selection   
The load can work under 110/220V±10%AC input, as the label shown on the 
rear(refer to figure 1-4). If the default value on the label doesn’t match your 
region’s, please switch the black key to choose input line voltage,  and then 
insert power cord. Choose the right linear voltage as following.   
NOTE 
There’s no need to change fuse when linear voltage changes. The fuse can protect the 
electronic load at any setting voltage specified.   
 
Figure 1-4 power switching keys 
Types of power cord 
Select from the following schedule of Power Cord Specifications an appropriate 
power  cord  that  matches  the  voltage  for  the  area  in  which  you  use  the 
instrument. If the power cord included in the instrument you purchased does 
not match the voltage, contact the dealer or manufacturer for change.