21
Measurement Operation(8)
( figure 8)
red black
Model UT90C: OPERATING MANUAL
l For testing the capacitor with polarity, connect the
red test lead to anode & black test lead to cathode
instead of using test leads as mentioned above.
l It takes a longer time when testing a capacitor value
which is higher than 10µF range.
l When capacitance measurement has been completed,
disconnect the connection between the testing leads
and the circuit under test.
C.Frequency Measurement (see figure 8)
Warning
To avoid harms to you, please do not attempt to
input frequency voltage being tested higher than 30V.
The measurement ranges are from 10Hz to 10MHz.
To measure frequency, connect the Meter as follows:
1. Insert the red test lead into the HzVΩ terminal and the
black test lead into the COM terminal.
2. Set the rotary switch to Hz.
3. Connect the test leads across with the object being
measured.
The measured value shows on the display.
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