ATO-
250™ Operating Procedures
9
A
ten second counter
will start counting
down when the user starts selecting the test
current. The counter displays the remaining
seconds between the brackets on the second
line.
NOTE
If the user fails to select the test current and
also fails to press the START key within ten
seconds, the ATO-250 will terminate the
test.
c.
When the desired current is set or
displayed, press the START key to begin the
burn-in cycle. The red HIGH CURRENT
PRESENT indicator will begin flashing.
The ATO-250 will
burn-in
the test load for
five seconds
. A five second counter is also
shown on the display as illustrated below.
d.
At the end of the burn-in period, the test
results are outputted:
e.
After the resistance reading is fully noted,
press the ENTER key. The PRINT prompt
displays:
f.
Press the number one key (YES) if the test
result is to be printed. A typical test report
printout is shown in Figure 6.
After the test result is printed, the KEEP
THIS READING? prompt will appear.
If a printout of the test record is not needed,
then press the number two key (NO), in
which case, the following prompt is
presented:
g.
If the resistance reading needs to be saved
inside the working buffer, press the number
one key. If not, press the number two key
and go to step
h
.
The PREVIOUS DATA IN BUF message
will appear as shown below:
The user can append the new test data to the
previous test inside the working memory.
This feature is handy when a test was
interrupted and the ATO-250 was powered
off.
The previous test data time and date will be
displayed on the LCD screen.
h.
Press the number one key (APPEND
PREV DATA) to store the present test result
in the working memory plus the test results
from the previous test before the ATO-250
was powered down.
PRESS “START” TO
BEGIN BURN-IN. [02]
50.0 AMPS
BURN-IN [05]
100.0 MILLI-OHMS
50.0 AMPS
FINAL RESISTANCE
I = 50.0 AMPS
101.0 MICRO-OHMS
PRINT TEST RESULTS?
1.YES
2.NO
KEEP THIS READING?
1.YES
2.NO
PREVIOUS DATA IN BUF
10/20/01 06:28:11
1.APPEND PREV DATA
2.CLEAR PREV DATA
