Yokogawa EXA PH202 2-Wire pH/ORP Analyzer - Manuel (Page 17)

IM 12B6C3-F-E
Spécifications 2-11
Stamp Company :
Stamp Certification Institute :
Signature :
Remarks : Model EXA PH202S-F & PH202S-P No revision to drawing without prior FM Approval
Title : FM Control Drawing PH202S-F & PH202S-P (Intrinsic safe Entity concept) Number : FF1-PH202S-00
Page : 8 of 10 Revision : 5.4
YOKOGAWA
EUROPE
B.V.
Date : 01/07/2004
〈
Sens
or(
s)
ar
e of
a pass
ive
ty
pe t
o be
regar
ded as
’sim
ple apparat
us’
, devic
es
whic
h
neither
s
tor
e nor
gener
ate
volt
ages
over
1.
5 V
, cur
rent
s
over
0.1
A,
pow
er
over
25
mW
or
energy
ov
er
20
µJ,
or
ar
e
FM A
pprov
als
entit
y
approv
ed a
nd m
eet
connec
tion
requir
ement
s.
〈
Elec
tr
ical
data
of
the
EX
A
PH
202S-F
&
P
H202S
-P
:
-
Supply
c
irc
uit:
Max
imum
input
v
oltage
Vm
ax=24
V
Max
imum
input
c
urr
ent
Imax=250
mA
Max
imum
input
pow
er
P
i=1.2
W
Ef
fec
tiv
e int
ernal
capac
itanc
e C
i=737
pF;
Ef
fec
tiv
e int
ernal induc
tanc
e Li=2.
6
µH.
-
Sens
or
input
cir
cuit
:
Max
imum
out
put
volt
age V
t=14.
4 V
; Max
imum
out
put
curr
ent
It=
32.
3
mA
Max
imum
allow
ed ex
ter
nal c
apacit
ance
Ca=600
nF
Max
imum
allow
ed ex
ter
nal induc
tanc
e La=
36
mH
〈
Any
FM
Appr
ov
ed bar
rier
may
be us
ed t
hat
meet
s
the
following
requir
ement
s:
Voc
or
V
t ≤
24 V
Ioc
or
It
≤ 250
mA
Poc
or
P
t ≤
1.2
W
Ca
?
737 pF
+ C
cable;
La
? 2
.6
µ
H
+
Lcable
When ins
talling
this
equipm
ent,
follow
the
manuf
act
urer
s
installat
ion dr
awing.
Ins
tallat
ion s
hould be
in
ac
cor
dance
wit
h A
NS
I/IS
A
RP
12.
06.
01
Ins
tallat
ion of
Intr
insic
ally
Saf
e S
ys
tems
for
H
azar
dous
(C
lass
ified)
Loc
ations
and t
he
Nat
ional E
lect
ric
al C
ode
(A
NS
I/NFP
A
70).
As
soc
iated
apparat
us
connec
ted
to
the
barr
ier
mus
t not
use or
gener
ate
mor
e than
250
Vr
ms
or
V
dc.
〈
Res
ist
ance
betw
een I
ntr
insic
ally
Saf
e Gr
ound and
eart
h gr
ound mus
t be les
s
than
1.0
Ohm.
WAR
NI
NG
-
Subs
tit
ution
of
com
ponents
may
impair
Intr
insic
S
afet
y
-
To pr
event
ignit
ion of
flamm
able or
c
ombus
tible
atmospheres
, disc
onnect
pow
er
befor
e
serv
icing
or
read,
under
st
and
and
adhere
to
th
e
manufac
tur
er
s
live
maint
enance
proc
edures
.
Unc
lass
ified
Locat
ion
Class
ified
Locat
ion
Divis
ion 1
FM Ap
pro
ved
ba
rrier
Vo
c
(Vt
) ¡
Ü 24
V
Io
c
(It
) ¡
Ü 25
0
mA
Po
c
(Pt
) ¡
Ü 1,
2
W
Ca
¡Y
73
7p
F+
Cca
bl
e
La
¡Y
2,
6
H
+
Lc
ab
le
I.S.
certifie
d
Termin
ato
r
EXA
PH
20
2S-F
& PH2
02
S
-P
Sen
so
r
Con
ne
ctio
ns
Ma
x. c
ab
lele
ng
th: 6
0 m
tr.
Cab
le d
ia. : 3
1
2 m
m.
FM
Cla
ss I
, DIV
. 1,
Gro
up
A
B
CD
T3
B
for
am
bi
en
t te
mp
.
≤
55
ϒ
C
T4
fo
r a
mb
ie
nt
tem
p.
≤
4
0
ϒC