2. Connect the test leads across with the object being measured.
The measured value shows on the display.
Note
l If the value of voltage to be measured is unknown, use the maximum measurement
position (300V) and reduce the range step by step until a satisfactory reading
is obtained.
l In each range, the Meter has an input impedance of
1MΩ. This loading effect
can cause measurement errors in high impedance circuits. If the circuit impedance
is less than or equal to 1kΩ, the error is negligible (0.1% or less).
l When DC voltage measurement has been completed, disconnect the connection
between the testing leads and the circuit under test.
Measurement Operation (12)
22
Model UT20B: OPERATING MANUAL