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Section
IV
Model3490A
Y=YES
N=NO
DEl€AMINE
RANGE
SELEC.
TED. IF AN INVALID BANGE
CONDITION EXISTS,
34904
AUTOMATICALLY RANGES TO
NEAFEST VALIO RANGE
IS
34904
AEADY
TO TAKE
A
R
EADI
NG'
IS
DELAY
REOUIRED)
IF AUIORANC€ IS
SEL€CT€O
ANO REAOING IS
ON
WRONG
RANGE,349OA BANG€S ANO
TAKES
ANOTHEF
READING.
THIS
PROCESS IS
REPEATED
UNTIL RANGE IS
CORsECT
R€ADING IS
COMPLET€D
r0,0m
!I IACDC
SEN
FLAG IS
SET
34904 WILL NOI
B€SPOND
TO
MANUAL
OR EXTERNAL TRIG
6ER.
BECHECK NANGE
CON
OITIONS
SEFORE TAK
ING
MEASUREMENT.
y9c'c-35a5
+10
Figure
4-10.
Block
Diagram, Main
Logic ASM
Flow Chart.