Specifications

15
Measurement Operation(2)
1. Insert the red test lead into the VΩ terminal and
the black test lead into the COM terminal.
2. Set the rotary switch to an appropriate measurement
position in V or V .
3. Connect the test leads across with the object being
measured.
The measured value shows on the display.
B.AC & DC Current Measurement (see figure 4)
Note
l When DC/AC voltage measurement has been
completed, disconnect the connection between the
testing leads and the circuit under test.
l In each range, the Meter has an input impedance of
10MΩ. This loading effect can cause measurement
errors in high impedance circuits. If the circuit
impedance is less than or equal to 10kΩ, the error
is negligible (0.1% or less).
black red
( figure 4)
Model UT90B: OPERATING MANUAL