Kyoritsu 2009A User Manual download pdf (Page 20)

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６−６ Continuity Check (400Ω range fixed)

※

The continuity check mode is enabled by pressing the mode selector

switch on resistance range. " " is indicated on the display to show

the instrument in the continuity check mode. The buzzer beeps, if the

resistance under test is 20.0

or less.

DANGER

●Never use the instrument on an energized circuit.

●Do not make measurement with the battery compartment cover

removed.

●Keep your fingers and hands behind the barrier during measurement.

①Set the function selector switch to the " Ω" position.

②Slide the terminal cover to the left to disclose the V/Ω and COM

terminals. Plug the red test lead into the V/Ω terminal and the black

test lead into the COM terminal.

③With the tip of the test leads shorted together, press the Zero

Adjust/Reset button to offset the resistance of the test leads.

④Press the mode selector button once to enter from the normal mode

to the continuity check mode. " " should be indicated on the

display.

⑤Connect the tip of the test leads to the circuit under test. If the

resistance is 20.0Ω or less, the buzzer beeps.

６−７ Frequency Measurement

●

On ACA or ACV range, the frequency of the current or voltage under

test can be counted and shown on the display.

●

In the frequency measurement mode, "Hz" is indicated on the display.

●

Trigger threshold is approx. 10V for AC voltage and approx. 10A for AC

current. At frequency measurement, in case of low input signal, it often

happens that measurement cannot be made. Because range is fixed at

400V for AC voltage and at 400A for AC current.

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Kyoritsu 2009A User Manual Page 20