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A.
S p e c i f y t h e s e n s o r s e r i a l number t h a t
i s
c u r r e n t l y b e i n g used
w i t h t h e i n s t r u m e n t ( s e r i a l number i s found on t h e end of t h e
p l a s t i c box i n which t h e s e n s o r w a s r e c e i v e d ) .
B.
Most i n s t r u m e n t s i n d i c a t e t h e c o r r e c t c u r v e on t h e s e r i a l
number s t i c k e r l o c a t e d on t h e back of t h e i n s t r u m e n t , e . g . ,
DRC-70C-B-BCD-L/A.
The B i n d i c a t e s t h a t a B s e n s o r must b e
s p e c i f i e d , e . g
.
,
DT-500-DRC-B.
b o t h t h e BCD and a n a l o g of t e m p e r a t u r e o p t i o n a r e on t h i s
i n s t r u m e n t .
The BCD-L/A
i n d i c a t e s t h a t
C .
The t h i r d way i s t o open your i n s t r u m e n t and o b s e r v e t h e
w r i t i n g on PROM
U13.
The f o l l o w i n g t a b l e g i v e s t h e c o r r e s -
pondence between t h i s w r i t i n g and t h e a p p r o p r i a t e curve:
Curve
PROM
U13
0
B 3
A
B 4
B
B 6
D.
A f o u r t h way i s t o measure t h e d i o d e v o l t a g e f o r your s e n s o r
a t
4.2K
DRC Curve
Sensor V o l t a g e a t 4 . 2 K
0
2 . 4 2
-
2.48
A
2.30
-
2.34
B
2.50
-
2.56
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