Yokogawa EXA PH202 2-Wire pH/ORP Analyzer - Manual (Page 23)

IM 12B07D02-01E
2-10 Specification
S e n s o r ( s )
te r m in a ls 1 1 - 1 7
M a x . c a b le le n g th : 6 0 m tr .
C a b le d ia . : 3 … 1 2 m m .
S e n s o r ( s )
te r m in a ls 1 1 - 1 7
M a x . c a b le le n g th : 6 0 m tr .
C a b le d ia . : 3 … 1 2 m m
Ù n c la s s ifie d L o c a tio n
+
_
G
C la s s ifie d L o c a tio n U n c la s s ifie d L o c a tio n
+
_
G
F u n c tio n a l
e a r th
N o n in c e n d iv e d e s ig n
F M C la s s I, D iv . 2 , G r o u p A B C D ,
T 4 fo r a m b ie n t te m p . < 5 5 ° C
T 6 fo r a m b ie n t te m p . < 4 0 ° C
P H 2 0 2 S tr a n s m itte r
+
-
L o a d
R e s is ta n c e
C la s s ifie d L o c a tio n
e a r th
F M A p p r o v e d
p o w e r s u p p ly
V o c ≦ 3 1 . 5 V D C
F o r e le c t r ic a l d a t a :
s e e t e x t b e lo w .
F o r e le c t r ic a l d a t a :
s e e t e x t b e lo w .
N o n in c e n d iv e d e s ig n
F M C la s s I , D iv . 2 , G r o u p A B C D ,
T 4 fo r a m b ie n t t e m p . < 5 5 ° C
T 6 fo r a m b ie n t te m p . < 4 0 ° C
P H 2 0 2 S tr a n s m itte r
+
-
F M A p p r o v e d
p o w e r s u p p ly
V o c ≦ 3 1 . 5 V D C
F u n c tio n a l
・ Electrical data of the PH202S.
- Supply circuit (terminals + and -):
Maximum input voltage V
max
= 31.5 V. Maximum input power Pmax = 1.2 W
Effective internal capacitance Ci = 22 nF Effective internal inductance Li = 35 μH
- Sensor input circuit (terminals 11 through 17):
Maximum output voltage V
t
= 14.4 V. Maximum output current I
t
= 32.3 mA.
Maximum allowed external capacitance C
a
= 2.29PF.
Maximum allowed external inductance L
a
= 64.96mH.
・ 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.
Non-incendive field wiring may be installed in accordance with Article 501 of the National
Electrical Code.
・ Grounding shall be in accordance with Article 250 of the National Electrical code.
・ In case of using cable glands in Outdoor location, they shall be UV rated or made of metal.
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
2-7. Control Drawing of PH202S mA HART® Specification (FM Non-incendive design).
Application Doc. No.: IKE024-A10 P.4-3 to P.4-4