STB8827
Series Operation Manual Chapter 3 Introduction to [MEAS]
Test level (
LEVEL
)
Test range
(RANGE
)
Test speed (
SPEED
)
DC Bias (
DC BIAS
)
Trigger Mode (
TRIG
)
Auto Level Control (
ALC
)
Delay Time (
DELAY
)
Output Resistance (
Rsou.
)
Average times (
AVG
)
Voltage Level Monitor ON/ OFF (
Vm
)
Current Level Monitor ON/ OFF (
Im
)
Bias Current Isolation ON/ OFF (
ISO
)
Deviation Test Mode A (
DEV A
)
Deviation Test Mode B (
DEV B
)
Deviation Test Reference Value A (
REF A
)
Deviation Test Reference Value B (
REF B
25
)
Some zones listed below are as same as that on
<MEAS DISP>
page, so it is not
necessary to introduce in this section, but others will be introduced briefly in the
following sections.
Test function (
FUNC
)
Test frequency (
FREQ
)
Test level (
LEVEL
)
Test range
(RANGE
)
Test speed (
SPEED
)
DC Bias (
DC BIAS
)
DC Voltage Source (
DC SRC
)
3.5.1 Trigger mode
There are 4 trigger modes on
STB8827
: INT, MAN, EXT and BUS.
When the trigger mode is set as INT,
STB8827
will make sequential and
repeated tests.
When the trigger mode is set as MAN, press [TRIGGER] once,
STB8827
will
make one test.
When the trigger mode is set as EXT, once the HANDLER interface receives a
positive impulse,
STB8827
will execute one measurement.
When the trigger mode is set as BUS, once the IEEE 488 interface receives a
TRIGGER
command,
STB8827
will execute a test. The BUS mode cannot be set on
the front panel.
———————————————————————————————————————
Note:
In the process of testing, when
STB8827
receives a trigger signal, it will
be ignored. So the trigger signal should be sent after the test is done.
When optional HANDLER interface triggers
STB8827
, the trigger mode is set