Cautions .............................................................................................................. 1
Warning ........................................................................................................... 1
About BT280 ....................................................................................................... 2
Overview ......................................................................................................... 2
Specifications .................................................................................................. 2
Features .......................................................................................................... 2
Product Structure............................................................................................... 3
Structure diagram............................................................................................ 3
Product Use ........................................................................................................ 4
Power supply connection ................................................................................ 4
KEY Button operation...................................................................................... 4
Circuit breaker protection ................................................................................ 5
Working Mode..................................................................................................... 6
Smart test........................................................................................................ 6
Multimeter mode.............................................................................................. 7
Oscilloscope mode .......................................................................................... 8
Relay test ........................................................................................................ 9
Component activation...................................................................................... 10
0~5V Power supply ......................................................................................... 12
Injector test...................................................................................................... 13
Positive / Negative test.................................................................................... 14
Setting ............................................................................................................. 15
Online Update ................................................................................................. 15
Test Applications ................................................................................................ 16
Continuity testing............................................................................................. 16
Signal circuit testing (Oscilloscope test).......................................................... 17
Activating components in your hand................................................................ 17
Activating components in vehicle .................................................................... 19
Activating components / Ground ..................................................................... 20
Checking for bad ground contacts................................................................... 21
Following & Locating short circuits .................................................................. 22
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