Tonghui TH2822 - Special Display Indicators; Test Port

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29. TOL –Tolerance mode indicator
Special Display Indicators
Indicates short clear if you press the
CLEAR button
Indicates open clear if you press the
CLEAR button
Error indication
Indicates correction (open/short clear)
mode
Indicates damaged or open fuse
AD converter error（UNK）
AD converter error（END）
Test Port
TH2822 series are creatively designed to combine 3-
terminal port and 5-terminal port, which makes the