Fluke 117 - Manual (Page 13)

True-rms Multimeters
Making Basic Measurements
11
Measuring AC and DC Voltage
Volts DC Volts AC
V
edy03f.eps
Using Auto Volts Selection (114 & 117 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 or + and COM
jacks.
This function also sets the Meter’s input impedance to
approximately 3 k
Ω to reduce the possibility of false
readings due to ghost voltages.
Measuring AC and DC Millivolts
Millivolts DC Millivolts AC
DC
edy18f.eps
With the function switch in the l position, the Meter
measures ac plus dc millivolts. Press g to switch the
Meter to dc millivolts.