Digital Multimeter
Page <12>
20/09/10 V1.1
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Note
•
In each range, the Meter has an input impedance of 10M
Ω
Ω
This loading effect can cause measurement errors in high impedance
circuits. If the circuit impedance is less than or equal to 10k
Ω
Ω
, the error is negligible (0.1% or less).
•
When AC voltage measurement has been completed, disconnect the connection between the testing leads and the circuit under
test, and remove the testing leads away from the input terminals of the Meter.
•
True root mean square value stability period
():
When the reading obtained is less than 100 digits, the true root mean square value converter needs a longer time to stabilize.
When there is no input voltage, the maximum reading displayed is 10 digits.
Measurement Operation (3)
C.Measuring Resistance
(see figure 5)
Warning
To avoid damages to the Meter or to the devices under test, disconnect circuit power and discharge all the high-voltage capacitors
before measuring resistance.
The resistance ranges are: 400.0
Ω
Ω
, 4.000k
Ω
Ω
, 40.00k
Ω
Ω
, 400.0k
Ω
Ω
, 4.000M
Ω
Ω
and 40.00M
Ω
Ω
. To measure resistance, connect the
Meter as follows:
1. Insert the red test lead into theHzV terminal and the black test lead into theCOM terminal.
2. Model UT60C
Set the rotary switch to
; resistance measurement (
Ω
Ω
) is default or press
BLUE
button to select
Ω
Ω
measurement mode.
:
Set the rotary switch to
, resistance measurement (
Ω
Ω
) is default or press
BLUE
button to select measurement mode.
3. Connect the test leads across with the object being measured. The measured value shows on the display.
(figure 5)