Series 2280 Precision DC Power Supply Reference Manual  Section 2: General operation 
077085503 / March 2019  2-29 
 
Figure 15: Removing the front bumper 
 
Remove all connections to the rear panel of the Series 2280 before removing the rear bumper. 
2.  To remove the rear bumper, repeat the procedure in step 1. 
Dimensions 
The following figures show the mounting screw locations and the dimensions of the instrument with 
and without the bumpers. 
The instrument weighs 10.67 kg (23.53 lb) with the bumpers and 10.40 kg (22.95 lb) without them. 
 
The following figure shows the mounting screw locations and dimensions. Mounting screws must be 
#6-32 with a maximum screw length of 11.13 mm (0.438 in.). The dimensions shown are typical for 
both sides of the instrument. 
Figure 16: Series 2280 mounting screw locations and dimensions