RKI Instruments Digester Gas Monitor - Manual (Page 30)

24 • Wiring the Digester Gas Monitor Digester Gas Monitor Operator’s Manual
Figure 12: Digester Gas Monitor External Wiring Diagram
Ne
u
tr
a
l
G
round
L
AC
N G
RS
- 4
8
5
DP
S
W
EX
T
D
C
24V
B
A
T
T
B A
AL
A
R
M
RE
S
E
T
AL
A
R
M
BU
Z
Z
E
R
CH
4
RE
L
A
Y
-1
NO
NC
C
Al
a
rm
D
e
v
ic
e
Po
w
e
r
RE
L
A
Y
-C
FA
IL
NO
NC
C
NO
N
C
C
RE
L
A
Y
-A
Re
d
Bl
a
c
k
CH
3
RE
L
A
Y
-1
NO
NC
C
NO
NC
C
CH
2
RE
L
A
Y
-2
NO
NC
C
CH
1
RE
L
A
Y
-1
CH
1
RE
L
A
Y
-2
NO
N
C
C
4-
2
0
m
A
OU
T
P
U
T
GB
R
OX
Y
S
AM
P
G
W
CH
4
RE
L
A
Y
-2
NO
NC
C
Bu
zz
e
r
(F
a
c
to
ry
w
ir
e
d
)
Re
se
t
S
wi
tc
h
(F
a
c
to
ry
w
ir
e
d
)
Al
a
rm
D
e
v
ic
e
Po
w
e
r
See
M
o
dbus
W
ir
ing
In
C
h
apt
er
9
24V
D
C
Fl
o
w
S
w
it
c
h
(F
ac
tor
y
w
ir
e
d)
AC
P
o
w
e
r
100
/115
V
A
C
50
/
6
0
H
z
Li
ne
(
H
o
t)
RE
L
A
Y
-B
NO
N
C
C
LE
L
W
De
te
c
to
r
/
Tr
a
n
s
m
it
te
r
Te
rm
in
a
lSt
ri
p
(t
y
p
ic
a
l
1
o
f
4
)
NO
N
C
C
CH
2
RE
L
A
Y
-1
S
tr
obe
Te
rm
in
a
lSt
ri
p
AC
In
Te
rm
in
a
l
St
ri
p
C
o
n
tr
o
ller
Te
rm
in
a
l
St
ri
p
N
O
T
E
:
L
ine
a
n
d
N
e
ut
ra
l
a
re
L1
and
L2
fo
r
22
0
V
A
C
W
ir
ing
C
R
e
co
rd
in
g
D
e
v
ice
50
0
O
hm
s
Im
peda
nc
e
M
ax
im
u
m
NO
NC
C
NO
N
C
C
CH
3
RE
L
A
Y
-2
Ch
a
n
n
e
l
Al
a
rm
Te
rm
in
a
lSt
ri
p
A
la
rm
D
ev
ic
e
s
,
T
y
p
ic
al
A
lar
m
W
ir
in
g
S
ho
w
n
R
e
la
y
C
on
ta
c
ts
R
at
ed
F
o
r
1
0
A
m
p
s
A
t
2
50
V
A
C
O
p
ti
on
al
Ho
rn
/S
tr
o
b
e
A
la
rm
D
ev
ic
e
,
T
y
pi
c
a
l
A
la
rm
W
ir
ing
S
h
o
w
n
R
e
la
y
C
on
ta
c
ts
R
at
e
d
F
o
r
1
0
A
m
p
s
A
t
2
50
V
A
C
Co
m
m
o
n
/
Ch
a
n
n
e
l
Al
a
rm
Te
rm
in
a
lSt
ri
p
F
o
r
F
ac
to
ry
U
s
e
O
nly
NO
NC
C
RE
L
A
Y
-D