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Note : DC 400.0mV range is designed with 1000M
W
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.
Press the Hz button momentarily to activate Hz Frequency. The Hz
trigger Level is determined by the selected function-range from
where the Hz function is activated. In ACV function, activating the
Hz function during significant measurements can get the most
appropriate trigger level to avoid electrical noises in most cases.
Electrical noise may cause unstable Hz readings . Activating the Hz
function at AC 4.000V range (before making significant measurements)
can get lower trigger level (higher sensitivity). Hz reading may show
zero when the sensitivity is insufficient.
Set slide-switch to Voltage function position. Inputs are made through
the test leads terminals.
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DC Voltage, AC Voltage, Hz Frequency Functions
CAUTION :
Before and after hazardous voltage measurements, test
the Voltage function on a known source such as line
voltage to determine proper meter functioning.
4) OPERATION
