HP 5363B, Руководство по эксплуатации и обслуживанию

Страница: 20 / 157

M o d e l 53638
O p e rat i o n
START
STOP
5370A
53638
START
Figure 3-3. 53638 Time Zero Calibration Setup
b . I n se rt the 53638 probes, A a n d 8 , i nto t he i r adjacent ca l i b ra t i o n j ac k s .
c . S e t t h e 53638 A c h a n n e l th umbwheel s w i t c h e s to read A ; 0 .00;
£.
d . Set t h e 53638 8 c h a n n e l th umb w h e e l switches t o read 8; 0 .0 0 ;
f .
NOTE
S LO P E sect i o n s of STA R T and STOP t h umbw h e e l s w i tc h e s m u st be
a l i ke ; i .e . , both set at
f .
e. Set t h e 5370A C o u n te r controls a s f o l l o ws :
FUN CT I ON ........................................ " T I
STAT I ST I CS ..................................... MEAN
SAMPLE S IZE ...................................... 100
D I S PLAY RATE ...................... 12 O'cl ock positi o n
ARM ING ........................................... ±T I
INPUTS S TART/STOP:
LEVEL ............. , .............. , .. , .. .. .. ... PRESET
INPUT I MPEDAN CE ............................ 5 0
o h m
+1/+10 .............................................. +1
A C /D C ............................................. D C
START COM/SEP .................................. SEP
SLOPE ................
.
.............
.
.............. .:F
f . Lift a n d h o l d T I M E Z E R O/ L EV E L s w i tc h .
STOP
g . Adj ust P U L L TO
ADD 1 0 .0 n s k n o b u n t i l 5370 A C o u n t e r d i sp l a y read s a p p ro x i mate l y
0.00 n s .
N OTE
I f t h e d e l a y c a n not be ze roed o u t beca use of t h e n a t u re of t h e test
set u p
I
d iffe ren t c a b l e l e n g t h s , etc . ' , stor e the d e l a y b y p r e ssi n g the
S ET R E F k e y of t h e 5370A C o u nter. In t h e S E F R E F mode t h e d e l a y
i s s u bt racted o r a d d e d a utomati ca l l y f rom t h e n ext s u b se q ue n t
readi n g s.
P ro b e select i n d i cators for se lected S TA R T a n d STOP p r o b e s w i l l
N OT f l a sh d u r i n g c a l i b ra ti o n .
3-5