Amprobe ACD-14 TRMS-PLUS Руководство по эксплуатации - Страница 6
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meter will show close to zero reading when the inputs are shorted. Open input is
actually a floating condition, which is not a zero-volt-input condition.
Note: Hz input sensitivity varies automatically with function range selected while
activating the Hz function. Lowest range has the highest sensitivity, and the highest
range has the lowest sensitivity. Activating the Hz function WHILE measuring the
specific function signal (auto ranging) can automatically select the best sensitivity
range to avoid electrical noise that may cause unstable Hz reading. However, if the Hz
reading shows zero due to insufficient sensitivity, activate the Hz function BEFORE
measuring the specific function signal. The meter is then in the lowest range and can
select the highest sensitivity range.
Caution
Measuring Resistance, Continuity, Diode or Capacitance function on a live circuit will
produce false results and may damage the instrument. In many cases the suspected
component must be disconnected from the circuit to obtain an accurate measurement
reading.