Yokogawa EXA PH202 2-Wire pH/ORP Analyzer - Manuel (Page 12)

IM 12B6C3-F-E
2-6 Spécifications
Stamp Company :
Stamp Certification Institute :
Signature :
Remarks : Model EXA PH202S
Title : Installation Drawing PH202S CSA Number : FF1-PH202S-00
Page : 3 of 10 Revision : 5.4
S
af
e
ar
ea
Vm
ax
=
31
.5
Vo
ltDC
Im
ax
=
1
00
m
A
Pm
ax
=
1.
2
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if
ie
d
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er
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)
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E
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OR
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ter
mi
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ls
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9
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R(
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te
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s
11
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ote
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ig
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A
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02
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+ _
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ad
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sis
ta
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m
ax
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za
rd
ou
s
ar
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ot
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No
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al
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ly
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tri
ns
ic
al
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af
e d
es
ig
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ss
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iv
.1
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ro
up
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&
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, T
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fo
r
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nt
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m
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(p
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/O
R
P
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ra
ns
mi
tte
r)
EX
A
PH2
02S
CS
A
cer
tif
ied
s
af
et
y
ba
rr
ie
r o
r p
ow
er
s
up
pl
y
Su
ita
ble
valu
es
ar
e:
(HAR
T
co
mpa
tib
le
)
CS
A
E
x
ia
C
las
s1
, Di
v.
1,
Gr
oup
C
&
D,
T3
C
for
am
bien
t tem
p.
<
55
¡C
Fo
r ele
ctr
ical
data:
se
e
tex
t b
elo
w.
Fo
r e
lec
tri
cal
d
ata:
se
e
te
xt
b
el
ow
.
Sui
tab
le
va
lu
es
are
:
•
Sensor(s) are thermocouples, RTD
s, passive resistive switch devices, or are CSA entity approved and meet
connection requirements.
•
Electrical data of the EXA PH202S.
- Supply and output circuit (terminals + and -): Maximum input voltage V
max
= 31.5 V.
Maximum input current I
max
=
100
mA.
Effective internal capacitance C
i
= 22
nF.
Effective internal inductance L
i
= 22
µH.
- Sensor input circuit (terminals 11 through 19): Maximum output voltage V
oc
= 14.4 V.
Maximum output current I
sc
= 32.3
mA.
Maximum allowed external capacitance Ca = 600 nF. Maximum allowed external inductance La = 36
mH.
•
Barriers and power supply should be CSA certified. The specifications must not exceed the maximum values as shown in the diagram above.
Installation should be in accordance with Canadian Electrical Code, Part I or CEC, Part I. Maximum safe area voltage should not exceed 250 V
RMS
.
•
The Hand Held Communicator must be of a CSA certified intrinsically safe type in case it is used on the intrinsically safe circuit in the hazardous area.
YOKOGAWA
EUROPE
B.V.
Date : 01/07/2004