Yokogawa DO202 2-Wire Dissolved Oxygen Analyzer - Manual (Page 20)

IM 12J05C01-01E
・ Electrical data of the DO202S.
- Supply circuit (terminals + and -):
Maximum input voltage V
max
= 31.5 V. Maximum input power P
max
= 1.2 W
Effective internal capacitance Ci = 22 nF Effective internal inductance Li = 35 μH
・ Sensor input circuit (terminals 11 through 18):
Maximum output voltage V
t
= 14.4 V. Maximum output current I
t
= 10 mA.
Maximum allowed external capacitance C
a
= 2.29 μF.
Maximum allowed external inductance L
a
= 600 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 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 on-hazardous
- Do not reset circuit breaker unless power has been removed from the equipment or the
area is know to be non-hazardous
S e n s o r
te rm in a ls 1 1 - 1 8
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
te rm in a ls 1 1 - 1 8
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 n e n d iv e d e s ig n
F M C la s s I, D iv .2 , G ro 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
D O 2 0 2 S tra n s 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
F u n c tio n a l
e a rth
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 n e n d iv e d e s ig n
F M C la s s I, D iv .2 , G ro 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
D O 2 0 2 S tr a n s m itte r
+
-
F M A p p ro v e d
p o w e r s u p p ly
V o c ≤ 3 1 . 5 V D C
2-9 General Specifications
2-7. Control Drawing of DO202S mA HART® Specification (FM Non-incendive design)
Application Doc. No.: IKE030-A10 P.7 to P.8