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Secti{)n
IV
13r1gc
lines.
t'Rl
r.nd
t:l{:.
l)el.r1
tirrc
is
dcterrincd b}
thc
frerquencl' range
sctting
as
irtdrcaled
in
lable
'1-6.
At
the
end
ol
the
dclal
pcrir,J. the
outptrt
ol
lhe
\rariable
Delal'
ciriilit
loes 1o*
lppllint t 'sct"
cotrmlnd to
the lriSScr
Flrp'Flop.
Whcn
"-'et".
lhe
O
side
ol
tlre
liiggcr
Flip-t:1,'p
goes
low to
trigger the
pinel
rncler:. \\'llerl thc
panci
lllcl!'I\
ire
triggered,
the
(L)
t'lag
infLtt
fr{rrrl
Prrlcl
\leter
I
glcs
high and rerrJills
hirh
durlng
the
l0()
llls
nlelsurcrrlenl
period.
\\'hen
the
nrersurerneot
j\
corrlpleic.
the
Flag
Iine
goer
lo\\'.
initialing
lhc
J()
rrts
trnre
delry.
\\hen
tlre
-10
IIrs
del,r1, lrrrs
clrpsed,
th.
nulpui
of
thc
delrl
circuil
g0cs Ior','.
lppll inr
l
"re:et"
cr)irlrninLl
to
both
flip
t1r'ps.
Tltls
catts.'s
the
panel
rttetcr
'frigrer
line and
lhc
I
D.rte FlJg
line
lo
go
hillh
rnd
the
'Data
Il.rg
Iirte
lo
go
lo\r,' I(cst'llins
the
datr
llrgs i,rdicJl.s
1o
3n
e\l.rl)ll
contl()llcr
lllJl
da13
is
r.Jd)
!l
thc'
Ii(
D
outputs.
-1-l(15.
llrc
puroosc
0i
lhe vrri.rl,l.
lhlt!' in
thr'
1ll))irlg
alrailil
ii l()
e,rsLlra
IhJt lhe ln\llulncnt
hils
been
Ii\cn
suilirie!1
\elllinf
tirre
I.('[orc
the rlilli]
llrgs
are
relurlled.
Since
the
lctttal
seltling
linle of
tirc instrulnenl
is
ofteti
Iess
\lLrdel
ri75A
Table
4-6.
Variabl€
Time
Dolays.
thJrr
llre
Iir)r.
proYide,l
hr
lhe
Vrrirl)le
I)cll) .ir.uit.
tire
uscr
llIry'
liIc1
il
.on\.,rient l{l bV!r!\
llte
Vlrirhle l)ell1.
l}lis
can
bc lccontplislrerl
hr
lpplrrng
r
conlinuou\
rr()und
lo
lhe
J
!,,tcr IlLrrle
lir
c.
(irrunLlin,r
llrL'
Tngqcr
\1oLle
lire
!lisahles
lhe Vlriuhlt' I).'l.r' circuit
.rnrl enahlts
l(
l7A.
\\llL' lr
r:ronrcnlil,r'
lr,,rrnil
r.
lpPlic,l 1o
tlle
llcrrr(itr
\ltrrure
Iinc.
llrr outf
rt ()l
l(
l().\
Lo.\
hlrlt.
the oulpLrt
rri
l( l7A !()e\
[r,,
urd
llrr
1\\
r] lllp
ll(.p\
are st1
:i:nulllnt'-
Lrusl).
,\t
thc an(l
ol
ilre lJ0
rn\
rilcit.urcnlent
cy'clc,
hotli
tlip'llop\ ire rescl.lhc Ingr.'r
line
g,res
high
rnd
the
drlr
llaES
are
returr)cd
lr)
lllcir
orrLrnxl
stiltts.
l0
Hz -
l0rl
Ir]r
100
Hz
-
1 i.rH2
I kHz l3
f"lll2
ilirr:
0,1?
s..
0.02
!..
l-l8
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