Specifications

Model UT90B: OPERATING MANUAL
11
z Please use the ranges from high to low if
the current not being confirmed.
z When current measurement has been
completed, disconnect the connection
between the test leads and measured
circuit.
C. Resistance Measurement(see figure 5)
Warning
To avoid injury to the user, please do not
attempt the voltage higher than 60V/DC or
30V/AC.
The resistance ranges are: 200.0Ω, 2.000kΩ,
20.00kΩ, 200.0kΩ, 2.000MΩand 20.00MΩ. To
measure resistance, connect the Meter as
follows:
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
Ω, parallel connect
the test leads across with the object being
measured.
3. The measured value shows on the display.
Note
z The LCD will display “1” indicating open-
circuit for the tested resistor or the resistor
value is higher than the maximum range of
the Meter.
z To measure online resistance, please turn
off power of the circuit and discharge all