Varian 990 dCLD II, Operation Manual

Page: 139 / 162

B-3
Model 990 dCLD II Component Leak Detector
J3
/3
5
F
IL O
F
F
Level
Filament
is
OFF when act
ive
A
ctivati
on cau
se
s the
9
90 dCL
D
II to tu
rn
o
ff the op
er
ating
filam
e
nt
in
th
e
sp
ec
tu
be
.
Whe
n
the P
A
RALL
EL
ENABLE
inpu
t, J3
/6,
is not po
we
re
d,
thi
s inp
u
t
ha
s no ef
fect
on
th
e
9
9
0
dC
LD
II
an
d
th
e
99
0
dC
LD
II
ke
ep
s t
he
fila
m
en
t
on
,
assu
ming
favo
rab
le
cond
itions in th
e spec tu
be
.
J3
/3
7
Q
ui
ck
Ex
te
rn
al Ca
l
M
om
en
ta
ry
(m
in. 0.2 s)
Perform a Quick Calibration with
Exter
nal
L
eak
A
ctivation caus
es
the
990 dCLD
II
to perform a f
as
t
ca
libr
a
tion usin
g th
e extern
al calibr
a
ted
le
ak.
Th
e calibr
a
tion
doe
s no
t
in
clu
de zer
o
in
g.
Ta
ble B-1
C
ustome
r Acc
essible
Input
s (Co
n
tinued)
Con
n
/Pin
Input
Na
me
Momen
tary
or
Le
vel Cont
ac
t
5
to
24 VDC
De
sc
rip
tion
B
eha
v
ior