18
17
True
RMS
True
RMS
CAT III 1000V
CATIV 600V
CAT III 1000V
CATIV 600V
9.5 Capacitance Measurement (See Figure 6)
1) Turn the function selection knob to the capacitance measurement
scale.
2) Insert the red test leads to the port and the black one to the
COM port, and connect the tips of two test leads to both ends
of measuring capacitance separately (with the load in parallel)
to measure.
3) An internal specific capacitance value will be displayed if there
is no input. The above value shall be subtracted from the
measured
value to ensure the accuracy in small range
measurement.
In this case, REL relative measurement can be
auto subtraction.
applied to make
Note:
OL symbol will be displayed when the measured capacitance is
short-circuited or the capacitance exceeds the maximum range
of meter.
Generally, several seconds is needed in high-capacity capacitor
measurement.
Before capacitance measurement, please switch of f all powers
in circuit and fully discharge all capacitors to avoid damage or
injury, especially for capacitors with high voltage.
9.6 AC/DC Current Measurement (See Figure 7)
1) Turn the function selection knob to the
A /mA /μA
scale.
2) When the scale is
A
, insert the red test lead to the
A
port.
When the scale is
mA /μA
, insert the red test lead to the
mA /μA
port. Insert he black test lead to the COM port.
3) The meter should be in series with the load, the AC measurement
reading is true RMS value.
Note:
Turn off the power in circuit before the meter being in series with
the circuit.
Proper input port and scale should be selected in measurement.
High range should be selected if the measured current is unknown.
Fuses are provided inside the input jacks of
A /mA /μA
.
Do not connect the test leads in parallel with any circuit, which
may cause damage and injury.
9.7 Frequency and Duty Ratio Measurement
(Only UT17B PRO)
The Product can measure frequency or duty cycle while making
either AC voltage or current measurement. Press the Hz% button
to enter the frequency or duty cycle measurement mode
Figure 6
Figure 7
UT15B PRO/UT17B PRO User Manual
UT15B PRO/UT17B PRO User Manual
