YOKOGAWA TY710 - DC, AC Current Dual Display; Capacitor Measurement

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4.3.12 DC, AC Current Dual Display ( • )
1) Turn the function switch to the “µA,” “mA” or “A” position.
(If the magnitude of the current being measured is not known,
select the “A” position. Make sure the current being measured
is no more than 440 mA before the “µA” or “mA” position is
selected.)
2) Press the SELECT key three times to select DC/AC dual
display.
DC current measurement appears on the main display and AC
current on the sub-display.
3)Plugtheblacktestingleadintothe“COM”inputterminaland
the red testing lead into the “A” input terminal.
If the current is in the order of mA or less, plug the red testing
leadintothe“μA/mA”inputterminal.
4) Connect the testing leads to the circuit under test and then read
the value when it stabilizes.
Testing leads
Red
Black
Testing leads
Red Black
4.3.13 Capacitor Measurement ( )
CAUTION
To avoid damage to instrument
• Turnoffthepowertothecircuitundertestbeforestartingmeasurementinordertoprevent
any excessive voltage from being applied to the instrument.
• Beforestartingmeasurement,besuretodischargethecapacitorundercheck.
1) Turn the function switch to the “
”position.
2) Plug the testing leads into the input terminals.
3)Openthe testingleadand press the RELkey in 5nF rangetoadjust the
capacitance to zero. (The display shows “ 0.000 ”.)
4) Connect the testing leads to the circuit under test and then read the value
when it stabilizes.
Testing leads
RedBlack
Note
The value (zero adjustment) remains displayed until power-off.