UNI-T UT803 User Manual

To test a diode out of a circuit, connect the Meter as follows:
Note
Connect the test leads to the proper terminals as
said above to avoid error display. The LCD will
display OL indicating diode being tested is open or
polarity is reversed. The unit of diode is Volt (V),
displaying the forward voltage drop readings.
Open circuit voltage is around 2.7V.
25
Model UT803: OPERATING MANUAL
Insert the red test lead into terminal and the black
test lead into the COM terminal.
Set the rotary switch to and press SELECT
button to select measurement mode.
For forward voltage drop readings on any
semiconductor component, place the red test lead
on the component’s anode and place the black test
lead on the component’s cathode. The measured
value shows on the display.
1.
2.
3.
When diode testing has been completed, disconnect
the connection between the testing leads and the
circuit under test, and remove the testing leads away
from the input terminals of the Meter.
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UNI-T UT803 Specifications

General

Backlight	Yes
Product type	Digital multimeter
Frequency range	6 - 60000 kHz
AC current range	0.06 - 10 A
DC voltage range	0.6 - 1000 V
Capacitance range	6 - 6000 nF
Statistic function	Maximum, Minimum
Resolution (frequency)	100000 Hz
Resolution (AC current)	6000 µA
Basic accuracy (frequency)	±(0.1%+3)
Basic accuracy (DC current)	±(0.5%+3)
Basic accuracy (DC voltage)	±(0.3%+2)
Basic accuracy (resistance)	±(0.5%+2)
Basic accuracy (capacitance)	±(2%+5)
Temperature measurement range	-40 - 1000 °C
Dimensions (WxDxH)	310 x 240 x 105 mm
Battery voltage	1.5 V

Weight and Dimensions

Weight	2400 g