Triplett 9007 - Manual (Page 26)

Page 25
7.4 AC Voltage Measurement:
WARNING!
If the magnitude of the voltage to be measured is unknown, always
start by setting the meter to the highest range, and then to lower
ranges, until a satisfactory reading is obtained.
Do not rotate the RANGE switch with the input applied to the meter.
If the input voltage is higher than 700VAC (CAT I, CAT II, CAT III), or
600VAC (CAT IV), do not attempt to measure!
Use Caution when measuring voltages above 30V AC.
7.4.1 Connect the black test lead to the COM jack and the red test
lead to the VOLT / DIODE / OHM / CAP “V Ω CAP” jack.
7.4.2 Set the RANGE switch to a V~ position. If the magnitude
of voltage is unknown, set the RANGE switch to the highest
V~ position. If the input voltage is higher than the previously
stated limits, do not attempt to measure!
7.4.3 Connect the test probes to circuit being measured. The LCD will
display the AC voltage.