Yokogawa EXA PH202 2-Wire pH/ORP Analyzer - Manuel (Page 15)

IM 12B6C3-F-E
Spécifications 2-9
Stamp Company :
Stamp Certification Institute :
Signature :
Remarks : Model EXA PH202S-N No revision to drawing without prior FM Approval
Title : FM Control Drawing PH202S-N (Non-incendive) Number : FF1-PH202S-00
Page : 6 of 10 Revision : 5.4
Sen
sor
(s)
te
rm
in
al
s
11
-1
9
M
ax
. c
ab
le
le
ng
th
: 6
0 m
tr
.
Ca
bl
e
dia
. :
3
1
2
mm.
Sen
sor
(s)
te
rm
in
al
s
11
-1
9
M
ax
. c
ab
le
le
ng
th
: 6
0 m
tr
.
Ca
bl
e
dia
.:
3
12
mm
n
cla
ss
if
ie
d
Lo
ca
tio
n
+ _ G
C
la
ss
if
ie
d
Lo
ca
tio
n
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cl
as
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d L
oca
tio
n
+ _ G
Pr
ote
cti
ve
ear
th
In
tr
in
si
ca
lly
s
af
e d
es
ig
n
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C
la
ss
I
, D
iv
.2
, G
ro
up
A
B
C
D,
T
3B
f
or
a
mb
ie
nt
tem
p.
<
5
5¡
C
T
4
fo
r
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ie
nt
te
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. <
40¡
C
E
XA
PH2
02
S a
na
ly
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r
+
-
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oa
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R
esi
sta
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e
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ass
if
ie
d
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n Pr
ote
ct
iv
e
e
ar
th
FM A
pp
rov
ed
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r s
upp
ly
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c
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3
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V
D
C
Fo
r ele
ctr
ica
l da
ta:
see
tex
t be
lo
w.
Fo
r ele
ctr
ical
data:
se
e
tex
t b
elo
w.
In
tr
in
si
cal
ly
s
af
e d
es
ig
n
FM
C
la
ss
I,
D
iv
.2
, G
ro
up
A
B
C
D,
T
3B
f
or
a
mb
ie
nt
te
m
p.
<
5
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C
T
4
f
or
a
mb
ie
nt
tem
p.
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C
E
XA
PH20
2S a
na
ly
se
r
+
-
FM A
ppr
ov
ed
po
we
r
su
pp
ly
Vo
c
¡Ü
3
1.5
VDC
•
Electrical data of the EXA PH202S : - Supply circuit (terminals + and -): - Sensor input circuit (terminals 11 through
19):
Maximum input voltage
V max
= 31.5 V. Maximum output voltage V
t
= 14.4 V.
Maximum input power Pi = 1.2 W Maximum output current I
t
= 32.3 mA.
Effective internal capacitance Ci = 22 nF Maximum allowed external capacitance C
a
= 600 nF.
Effective internal inductance Li = 22
H Maximum allowed external inductance L
a
= 36 mH.
•
The Hand Held Terminal must be FM Approved in case it is used in the classified location. When installing this equipment, follow the manufacturers installation drawing. Installation shall be in accordance with Article 501.4(B) of the National Electrical Code (ANSI/NFPA 79). Nonincendive field wiring may be installed in accordance with Article 501.4(B)(3)
•
Grounding shall be in accordance with Article 250 of the National Electrical code
WARNING
-
Substitution of components may impair suitability for Division 2
-
Do not remove or replace while circuit is live unless area is know to be non-hazardous
-
Explosion Hazard — Do not disconnect equipment unless area is know to be non-hazardous
-
Do not reset circuit breaker unless power has been removed from the equipment or the area is know to be non- hazardous
YOKOGAWA EUROPE B.V.
Date : 01/07/2004