4
4) OPERATION
CAUTION: Before and after hazardous voltage measurements, test the voltage
function on a known source such as line voltage to determine proper meter functioning.
DC Voltage, AC Voltage, Hz Frequency functions
Set slide-switch to Voltage function position(s). Inputs are made through the test leads
terminals. For Twin Display Models, slide-switch on defaults at AC
voltage. Press
SELECT
button momentarily to select DC voltage.
Press the
Hz
button momentarily to activate Hz Frequency function in the following
slide-switch functions:
Single Display Models: DCV & ACV via the test leads; ACA via the clamp jaw
Twin Display Models: DCV, ACV, DC
µ
A & AC
µ
A via the test leads (not available to
ACA)
Note: DC 400.0mV range is designed with 1000M
Ω
high input impedance for least
current drain in measuring small signals, and can cope better with most commercially
available voltage output transducers/adapters. The non-zero display reading is normal
when the meter inputs are open circuit, which will not affect actual measurement
accuracy. The meter will show close to zero readings when the inputs are shorted.
Open input is actually a floating condition, which is not a zero-volt-input condition.
