UNI-T UT81B User Manual

32
Model UT81B: OPERATING MANUAL
Ω
Note1. Insert the red test lead into the W terminal and the
black test lead into the COM terminal.
2. Set the rotary switch to .
3. Connect the test leads across with the object being
tested.
4. The tested circuit overload resistance value shows
on the display.
5. The beeper comes on continuously for open
conditions, that is test resistance 10W.
6. The beeper does not sound when the test resistance
is 100W
When measuring continuity buzzer, the corresponding
functional buttons:
CONTINUITY REL
F1 F2
F1: toggle to resistance measurement mode
F2: relative mode
When continuity testing has been completed,
disconnect the connection between the testing leads
and the circuit under test and remove the test leads
away from the input terminals.
l

UNI-T UT81B Specifications

General

Backlight	Yes
Product type	Digital multimeter
Frequency range	0.01 - 10000 kHz
AC current range	0.4 - 10 A
AC voltage range	4 - 750 V
DC voltage range	0.4 - 1000 V
Dimensions (WxDxH)	100 x 48 x 200 mm
Battery voltage	1.5 V

Weight and Dimensions

Weight	498 g