True-rms Multimeters 
 Making Basic Measurements  
 11 
Measuring AC and DC Voltage 
Volts DC Volts AC 
V
 
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Using Auto Volts Selection (117C  only) 
With the function switch in the x position, the Meter 
automatically selects a dc or ac voltage measurement 
based on the input applied between the V and COM jacks. 
This function also sets the Meter’s input impedance to 
approximately 3 kΩ to reduce the possibility of false 
readings due to ghost voltages. 
Measuring AC and DC Millivots 
Millivolts DC Millivolts AC 
DC 
 
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With the function switch in the l position, the Meter 
measures ac plus dc millivolts. Press g to switch the 
Meter to dc millivolts. 
Measuring AC or DC Current 
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