User Manual
33 
Step 1 - Check and/or Change Fuse 
-  Locate the fuse box next to the AC input connector in the rear 
panel. 
-  With a small flat blade screwdriver, insert into the fuse box slit to 
pull and slide out the fuse box as indicated below. 
-  Check and replace fuse (if necessary) for the desired line 
voltage operation (see Table 1). 
Step 2 - Check and/or Change Line Voltage Switch 
-  Carefully lift and turn the instrument upside down. 
-  Locate the red Line Voltage Switch, which has markings that 
indicate “115” for 115V or “230” for 230V line operation. Set the 
switch to the desired line voltage operation. 
Fuse box slit 
Fuse box  
Check/Remove Fuse 










