User Manual
32 
Table 1- Input Fuse Table 
Model 
115 V AC 
230 V AC 
9171B 
2.5 A 
1.25 A 
9172B 
2.5 A 
1.25 A 
9173B 
4 A 
2 A 
9174B 
4 A 
2 A 
9181B 
3.15 A 
1.6 A 
9182B 
5 A 
2.5 A 
9183B 
4 A 
2 A 
9184B 
4 A 
2 A 
9185B 
4 A 
2 A 
Note: All fuses listed have the specifications: T250V, slow 
blow (slow acting), 5 x 20mm. 
2.2  Line Voltage Selection 
The power supplies can be selected to operate with 115V input or 
230 V input. To ensure that your instrument is properly configured to 
operate at the desired AC line voltage, please follow the steps 
below: 
CAUTION: 
For safety, no power should be applied to the 
instrument while changing line voltage operation. 
Disconnect all cables connected to the instrument 
before proceeding.  










