Tonghui Electronics TH2826/A, Operation Manual

Page: 30 / 146

TH2826 Operation manual Ver1.0
◇ 22
„
Test frequency
（
Frequency
）
„
Test level （ Level ）
„
DC bias
（
Bias
）
„
Test speed
（
Speed
）
„
Trigger mode （ Trigger ）
„
Auto level control
（
Constant level
）
„
Bias current isolation ON/OFF ( ISO )
„
Average time
（
Average
）
„
Voltage level monitor ON/OFF ( V
m
)
„
Current level monitor ON/OFF ( I
m
)
„
Delay time
（
Delay
）
„
Output resistance （ Internal resistance ）
„
File management
（
File
）
„
Auxdiary tools
（
Tools
）
„
Deviation test mode A （ Deviation Ａ）
„
Deviation test mode
Ｂ（
Deviation
Ｂ）
„
Deviation test reference Ａ（ Reference Ａ）
„
Deviation test reference
Ｂ（
Reference
Ｂ）
Some setting zones on
＜ Measure setting ＞ page is the same as that on ＜ LCRZ ＞ page ，
listed as below, which is introduced before. Other setting zones on
＜
Measure setting
＞
page
will be introduced briefly below.
„
Test function
（
Function
）
„
Test range
（
Range
）
„
Test frequency （ Frequency ）
„
Test level
（
Level
）
„
DC bias （ Bias ）
„
Test speed
（
Speed
）
3.4.7 Trigger mode
In TH2826 there are 4 types of trigger mode
：
INT(internal trigger)
，
MAN(manual trigger)
，
EXT(external trigger) and BUS(bus trigger).
When the trigger mode is set as INT mode
，
TH2826 can test constantly.
When the trigger mode is set as MAN mode, press [TRIGGER] once
，
TH2826 performs a
test.
When the trigger mode is set as EXT mode, once HANDLER receives a trigger signal of
positive pulse
， TH2826 performs a test.
When the trigger mode is set as BUS mode
，
once IEEE488 receives a ” TRIGGER ”
，
TH2826