EXT-3
82
321B/
823
23B DI
MENSIO
NAL O
U
TLI
N
E DRAW
IN
G
Un
it : m
m
NO
T
E
Thi
s
dr
aw
ing sh
ow
s
ex
te
rn
al
di
mens
ions
of
th
is
in
st
ru
m
en
t.
The d
if
fe
rence
in
pr
odu
ct
s an
d op
ti
ons
us
ed can
caus
e a ch
ange
in
the ap
pearan
ce
of t
he
in
st
rumen
t.
Di
st
anc
e t
o t
he co
ver gl
as
s
su
rface
Name
Dis
tan
ce
to
the cover
glas
s
su
rf
ace
Dis
tan
ce to
th
e ligh
t r
ecei
vi
ng
elemen
t s
urf
ace
a [mm]
b
[m
m]
82
321
B
0.6
5
1.9
5
82
323
B
-
0.
5
Di
st
an
ce t
o
th
e l
ig
ht
recei
vi
ng
el
emen
t surfa
ce
(
T
he max
imum
screw
le
ng
th
is
6
mm.)
A s
ecu
ring
sc
re
w
