HP 3457A Service Manual page 53

3457A Operation
Set the Scan Advance t o Auto
-
Press the SCAN ADV
/
0 configuration key. Use the
/
AUTO o r
. / ,
/
HOLD scroll key t o display AUTO:2 and press the ENT
/
LAST ENTRY key.
Enable the Reading Mcrnory
-
Press the CONFIG
/
R conf'ig~~rnlion key then the ENT
/
LAST ENTRY
key.
Allocate Reading Memory space (each reading requires
4
bytes of memory)
-
Press the Blue SHIFT key
then the TERM
/
M configuration key. Use the
/
HOLD scroll key t o display
MSIZE. Enter the number
40 (10 readings times 4 bytes) and press the ENT
/
LAST ENTRY key.
Select the channels t o be measured
-
Press the Blue SHIFT key [hen the RECALL
/
S configuration key.
Use
i
/
HOLD scroll key t o display SLIST. Enter the number of each channel you wish t o measure fol-
lowed by a comma
(,)
t o separate them (example: 0,1,2,3,4,5,6,7,8,9). Press the ENT
/
LAST ENTRY key.
( A S
many as 16 s i n g l e d i g i t c h a n n e l numbers c a n be e n t e r e d a t one t i m e . The number o f r e a d i n g s
( N R D G S )
s h o u l d b e s e t t o match t h e number o f c h a n n e l s e n t e r e d ) .
Make the measurement
-
Press the SINGLE
/
F configuration key t o start the measurement sequence.
The instrument will read each channel listed and store the readings in memory.
Recall the readings
-
Press the Reading Memory RECALL
/
S key then the ENT
/
LAST ENTRY key.
T h e reading displayed is the last reading taken. The readings are shifted into memory so that the first
reading taken is in the highest number menlory location. The last reading taken is in memory location 1.
Use the
/
AUTO and
/
HOLD scroll keys t o view the measurement readings. Use the
+
and
+
display
keys t o read the total display contents.
T o repeat the same set of measurements
-
Press the CONFIG
/
R configuration key then the
ENT
/
LAST ENTRY key t o clear the reading memory. Press the SINGLE
/
F configuration key t o start
the new reading sequence.