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16
Front-panel operation
Integration time (manual setting) AVERAGE TIME, LOW TIME, and HIGH TIME
sub-menus
The values for HIGH, LOW, and AVERAGE time may be changed in 33.3333
intervals with the
833.33 msec.
Integration time (auto time setting) AUTO TIME submenu
Press ENTER when ACQUIRE TIMES appears on the display. If the correct trigger
level is selected in the previous step and the DUT is operating, the Model 2308 will
automatically determine the HIGH, LOW, and AVERAGE times. If the trigger level
is incorrect or the DUT is not functioning properly, the message PULSE CURR
TRIG NOT DETECTED will be displayed. (See note No Pulses Detected message
on
page
Timeout – TIMEOUT submenu
When the TIMEOUT value is reached, NO PULSE is displayed (top line of the front-
panel display). The value for TIMEOUT should be set to a value greater than the
pulse period. The default value is 1 second.
Trigger delay (if necessary) Channel #1 and Channel #2:
The trigger delay is changed in the TRIGGER DELAY submenu by using the
or
,
increments.
NOTE
Average readings count (if necessary) Channel #1 and Channel #2:
The AVERAGE READINGS submenu of the PULSE CURRENT #1/#2 menu item
is used to set the average readings count for pulse current measurements. This
count specifies the number of measurements (integrations) to average for each
reading. Range is 1–100.
or
▲
▼
,
,
,
18.)
keys to scroll to the desired delay value. Range is 0 – 0.100sec in 10 μsec
The high, low, or average integration times can be set either
manually or automatically. When a pulse is detected, there is a
10µsec trigger latency before the integration time begins. An
additional user trigger delay can be set to allow the leading edge
pulse overshoot to settle. Regardless of the user trigger delay
setting, the internal trigger delay is always present.
keys. Range of values is 33.3333 μsec to
μ
sec
▲
▼
,
,
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