Tektronix 2235 Operator's Manual

O p
e
r ating Pr
ocedures-2235 ΑΝ / U S M -488 O p
erators
6 . R otate t he Β D ELAY
TIME
POSITIO N
co n tr ol to
, οο

move t he intensifie d zone to t he app r op riate
edge of t he
9ό

r efere nce signal (on t h eΑ trace) ; t h
e
n fi n
e ad j ust un til t h e
edge of t h e reference sig n al (on t he Β trace)
is centere d at
any convenie n t vertical g r atic u le line (see F igu r
e 4-16,
Part Α ) .
, α
7 . R ecord t h e ΒD EL AY TIME POSITIO N control
d
ial
setting
.
Ι
8 . Select
C
H 2 VER
TICA L M OD E and ad j ust b ot h th e
LLL

I

C h
annel
2
P OSITIO N co n t r ol a nd t h e Α / ΒSWP S EP control
as
necessary to d is p lay th e Α trace a b ove t h eΒ trace .
Fig ur e 4-15 . R ise time, d iffe r en
tial time met hod .
4205-11
Substit u ti ng t he give n values in
t
h
e time difference
formula :
R ise Time = (7 .50 - 2 .50) (1 μ s/ d iv) =
5 μs
Time Differe n
ce B etwee n Two Pu lses on
Two
Time- R
elate d Sig n als
1 .
Preset inst r ume n t con trols and obtain
α baseli ne
trace . Set t h
e ve
r
tical TR IGG ER SOUR C E switc h es to C H 1
and t h
e
VER TICA
L M OD E switc h es to BOTH and A L T .
2 . U sing p robes
o
r
cables h aving equ al time delays,
ap-
ply t he refe r e nce sig n al to t he
C
h
an
n
el 1 in p ut a n d
apply the
com p ariso n sig n al to t h e
C
h annel
2 i np ut .
3 . Set t h e approp riate V
O
L
TS/DI V switc h to pr o du ce α
display of a ppr oximately 2 or
3 divisions i n am p lit ude .
4 . Set t he Α SE C/DI V switc h
to d is p lay t h e measure-
ment points of i n terest wit h in t h
e graticule a r ea .
4-18
5 . Select ALT HO R IZO N TA L M
OD E and C H 1 VER TI-
CA L M OD E . Ad j ust bot h t he C hann el 1 POSITIO N
control
and t he Α / Β S WP S EP control
so t
h
at t he Α t r ace is dis-
p laye dab ove t h e Β trace .
9 . R otate t h
e
Β D EL AY
TIME P OSITIO N control to
move t h e inten sifie d zo n e to th
e appropriate edge of t h e
com p ariso n signal
(on t
h
e
Α
trace) ; t hen fine ad j ust until t he
ed ge of t he comparison signal
is at t
h
e same ve r tical refer-
ence point as used i n pr ecedi ng
ste p 6 (see F ig u re 4-16,
Part Β ) . Do not ch ange t he setti ng of t he Horizontal
POSI-
TION control .
10 . R ecord t he Β D EL AYTIME POSITIO N control
dial
setting .
11
.
Calculate t he time d iffe r e nce betwee n t h e reference
signal (Cha nn el 1) and com p arison signal (C h annel 2)
as
in
t
h
e p rece d i n g "Time Differe nce On Single Waveforms" mea-
su
r
eme n t p roce du re .
EXA
MPLE : W it h t he Α SE C/DI V switc h set to 50 μ s per
divisio n ,
t
h
e dial rea d i ng for t he reference p ulse (Ch annel
1) is 2 .60 a nd t he d ial reading for
t
h
e com p ariso n p ulse
(C han nel 2) is 7 .10 .
S ub stit u ting t h
e
given val
u es into t h e time-diffe r ence
formula :
Time Diffe r ence = (7 .10 - 2 .60) (50
λι s/ d
iv) =
225,us
REV A PR
1985

Tektronix 2235 Specifications

General

Brand	Tektronix
Model	2235
Category	Test Equipment
Language	English