Datasheet
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Model UT81A/B: OPERATING MANUAL
1
Table of Contents
1  Before You Start
 Overview
 Unpacking Inspection
 Safety Information
 Rules For Safe Operation
 International Electrical Symbols
2  Using The Testing Tool
 Reading the screen
 The Meter Structure
 Functional Buttons
3  Making Measurements
 A. Scope Mode
 i. Setting up the Sleep Mode, Contrast, Beep
 ii. ACV, DCV, Hz, ACV and DCA Range
 iii. Trigger function
 iv. Waveform data save and recall
 B. Digital Multimeter Mode
 i. Measuring Voltages
 ii. Measuring Currents
 iii. Measuring Resistance
 iv. Testing Diodes
 v. Testing for Continuity
 vi. Measuring Frequency / Duty Cycle










