Atex DGTt2-ex User manual
C
ode no. 20711066 In
s
ta
ll
at
i
on
M
anua
l
G
a
s
D
ete
c
to
r
A
T
EX
R
e
v
. 3.9
P
age 24/33
_____________________________________________________________________________
D
G
T
t
2
-
ex
G
as
D
e
t
ec
t
o
r
A
T
EX
M
a
rki
ng:
II
3
G
E
x ec
II
C
T
4
G
c
S
en
s
o
r
Ty
pe:
S
o
li
d
-
S
tate
O
utput
S
i
gna
ls
:
l
oga
ri
th
mic
r
e
s
pon
s
e,
D
G
T
t2
r-
e
x
i
n
cl
ude
s
a
r
e
l
a
y
24
V
/ 1
A
fo
r
r
e
sis
t
iv
e
l
oad, add
i
t
i
ona
lly
a bu
zz
e
r
and a
ck
no
wl
edge button fo
r
bu
zz
e
r
.
O
pe
r
at
i
ng
V
o
l
tage: 24
V
DC
±
20
%
,
r
egu
l
ated
M
a
x
.
P
o
w
e
r
C
on
s
u
m
pt
i
on: 4.0
W
C
ab
li
ng: 4
-
e
l
e
c
t
r
ode, 4
-wir
e
c
onne
c
t
i
on,
F
o
r
c
o
rr
e
c
t
c
ab
l
e
s
pe
ci
f
ic
at
i
on
r
efe
r
to
E
N
60079
-
14
S
en
s
o
r
L
i
fe
(cl
ean a
ir)
: 3...5
y
ea
rs
, t
y
p
ic
a
l
O
pe
r
at
i
ng
T
e
m
pe
r
atu
r
e:
A
mm
on
i
a
-
3
O
the
r
ga
s
e
s
-
20
+
40
°C
,
(r
edu
c
ed
s
en
si
t
ivi
t
y
- )
O
pe
r
at
i
ng
H
u
mi
d
i
t
y
:
-c
onden
si
ng
D
eg
r
ee of
P
r
ote
c
t
i
on: I
P
54
W
e
i
ght: 390 g
N
ote:
T
he
c
a
li
b
r
at
i
on
is
done b
y
u
si
ng the handhe
l
d
c
a
li
b
r
at
i
on de
vic
e
(
I
RC)
vi
a
i
nf
r
a
r
ed
li
n
k
.
T
he
r
efo
r
e the
i
nf
r
a
r
ed
l
en
s
of the de
vic
e
m
u
s
t
be
cl
ea
rly
visi
b
l
e.
In
c
o
rr
e
c
t
c
onne
c
t
i
on
s
m
a
y
da
m
age the de
vic
e.
D
G
T
t2
-
e
x
and
D
G
T
t2
r-
e
x
c
an be
i
n
s
ta
ll
ed
i
n
A
T
EX
z
one 2.
Ind
ic
at
i
on
li
ght
s
:
C
on
s
tant g
r
een:
N
o
rm
a
l
ope
r
at
i
on
m
ode.
C
on
s
tant
y
e
ll
o
w
:
S
en
s
o
r
fa
il
u
r
e.
B
li
n
ki
ng
r
ed:
G
a
s
a
l
a
rm
.
B
li
n
ki
ng
will
s
top
w
hen the ga
s
c
on
c
ent
r
at
i
on
is
l
o
w
e
r
than the a
l
a
rm
limi
t.
In
s
ta
ll
at
i
on
M
anua
l
G
a
s
D
ete
c
to
r
A
T
EX
C
ode no. 20711066
R
e
v
. 3.9
P
age 25/33
_____________________________________________________________________________
Fi
gu
r
e 19,
D
G
T
t2
w-
e
x
and
D
G
T
t2
rw-
e
x
ga
s
dete
c
to
rs
gene
r
a
l
vi
e
w
(
the
s
uff
ix
w
m
ean
s
w
a
ll
m
ounted
m
ode
l)
.
T
he dete
c
to
rs
c
an a
ls
o be
m
ounted to the
c
e
ili
ng
(m
ode
l
wi
th
s
uff
ix
c)
o
r
to a du
c
t
(m
ode
l
wi
th
s
uff
ix
d
)
.
Fi
gu
r
e 20,
D
G
T
t2
r-
e
x
c
onne
c
t
i
on
s
and
l
a
y
out on the
circ
u
i
t boa
r
d.
N
O
T
E
:
A
v
a
il
ab
ili
t
y
of
c
onne
c
t
i
on
s
depend
s
on the
D
G
T
t2
-
e
x
m
ode
l
.
N
B
!
M
AKE
S
UR
E
TH
E
R
E
I
S
N
O
R
I
SK
O
F
EXP
L
O
S
I
O
N
!
C
he
ck
the
w
o
rki
ng en
vir
on
m
ent
wi
th po
r
tab
l
e ga
s
dete
c
to
r
of
ri
ght
E
x
C
ode no. 20711066 In
s
ta
ll
at
i
on
M
anua
l
G
a
s
D
ete
c
to
r
A
T
EX
R
e
v
. 3.9
P
age 26/33
_____________________________________________________________________________
Fi
gu
r
e 21,
D
G
T
t2
r-
e
x
a
l
a
rm
and de
l
a
y
s
ett
i
ng
s
.
Fi
gu
r
e 22,
D
G
T
t2
-
e
x
and
D
G
T
t2
r-
e
x
a
l
a
rm
and de
l
a
y
s
ett
i
ng
s
.
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