GETTING STARTED 
    21 
Power Up 
 
1.  Ensure the correct line voltage is 
lined up with the arrow on the fuse 
holder. If  not, see page 214 to set the 
line voltage and fuse. 
2
2
0
1
0
0
120
240
2
2
0
1
0
0
120
240
1 0 0
2 2 0
1
2
0
2
4
0
2.  Connect the power 
cord to the AC 
Voltage input. 
Make sure the ground connector on the power 
cord is connected to a safety ground. This will 
affect the measurement accuracy. 
3.  Push to turn on the 
main power switch on 
the front panel. 
4.  The display shows the model name and the version 
for a few seconds. 
Example: GDM-8261A, V1.00 
 
5.  Followed by the default measurement settings. 
 
6.  And the interface I/O settings. 
 
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