Page 6 - 1961 , Volume v.12 n.9 , Issue May-1961

range has been reduced by 50%,
making the new type of readout con
siderably easier to read.
MECHANICAL DESIGN
In order to take full advantage of
the comparatively small space re
quirements and low heat dissipation
of semiconductors, the over-all me
chanical design of the counters was
integrated into the development
program at an early stage. In this
way it was possible to design the
counters for maximum utilization of
space and ease of instrument main
tenance without sacrifice of opera
tional capability or convenience.
Circuits are functionally grouped
into plug-in modules supported by a
slotted guide strip. Removal of two
screws releases the top cover and
its hold-down arrangement for these
modules. All circuitry is then acces
sible in place or may be vertically
extended for trouble-shooting by the
adapter board included in each in
strument. Finally, modular construc
tion permits a high degree of manu
facturing standardization which, in
turn, reduces costs and helps assure a
uniform high level of quality.
ACKNOWLEDGMENT
The design and development of
the new counters was a joint effort
of several members of the -hp- Fre
quency and Time Engineering De
partment. The group leader for the
electrical design was Blair H. Har
rison, who was assisted by Ralph R.
Reiser and John Skovholt. Marvin
J. Willrodt and Robert P. James
gave valuable assistance on the read
out circuitry. Charles Reis and Irwin
Wunderman were responsible for
many of the basic techniques used in
the display. Application and per
formance data were compiled by
Dean Morton.
The mechanical design and pro
duction aspects were handled by
Gladys Kinney, Rolf K. Murchison,
Papken Der Torossian and Jess C.
Valentine under the direction of
Stephen D. Nemeth.
© Copr. 1949-1998 Hewlett-Packard Co.
SPECIFICATIONS Â ± 0 . 3 % m a x i m u m f o r s i g n a l s o f 4 0 d b
s i g n a l - t o - n o i s e r a t i o . )
- h p - R e a d s i n : M i l l i s e c o n d s a n d m i c r o s e c o n d s w i t h
p o s i t i o n e d d e c i m a l p o i n t .
M O D E L
P e r i o d s a v e r a g e d : 1 , 1 0 , 1 0 2 , 1 0 3 , 1 0 * , o r 1 0 5 .
5 2 1 2 A / 5 5 1 2 A S e l f - c h e c k : M e a s u r e s p e r i o d o f 1 m e .
R a t i o m e a s u r e m e n t :
F R E Q U E N C Y C O U N T E R
M a x i m u m c o u n t i n g r a t e : 3 0 0 k c . R e a d s : f a / f a 1 0 0 X p e r i o d t o m u l t i p l i e r . r m s a c r o s s
1 . 2
c p s
f i :
( I v
m e
R a n g e :
R e g i s r r a / i o n : o f d i g i t s : 5 . 5 0 0 o h m s ) ; f a : s a m e a s p e r i o d .
N u m b e r
D i s p l a y : M o d e l 5 2 1 2 A : n e o n c o l u m n ; M o d e l Accuracy: ± 1 count of fi ± trigger error of fa.
5 5 1 2 A : l o n g - l i f e i n d i c a t o r t u b e s . O u t p u t : 4 l i n e 1 0 0 K ( 1 - 2 - 2 - 4 ) . e a c h l i n e .
B C D
I m p e d a n c e :
o n
o h m s
I n p u t s e n s i t i v i t y : 0 . 1 v r m s f o r s i n e w a v e s ; 1 v
i n d i c a t e d
f o r n e g a t i v e p u l s e s , 2 ^ s e c m i n . p u l s e w i d t h . L e v e l : " 0 " v ; s t a t e s t a t e b y â € ” 1 b y v . a p p r o x i m a t e l y
â € ” 2 4
" 1 "
I n p u t 5 9 i m p e d a n c e : A p p r o x . 1 m e g o h m s h u n t e d P r i n t C o m m a n d : + 2 8 V , d c c o u p l e d f r o m
b y
p f .
2 7 0 0
s o u r c e .
o h m s
Operating femperafure range.- — 20° to-j-65°C. H o l d - O f f R e q u i r e m e n t s : P o s i t i v e v o l t a g e f r o m
n o t
b a s e :
T / m e
M a y
- J - 1 2 V .
a n y w h e r e
e x c e e d i n g
b e
L o n g - t e r m s t a b i l i t y : Â ± 1 0 p a r t s i n 1 0 e p e r g r o u n d t o 4 - 1 2 V .
w e e k .
D i m e n s i o n s : 1 6 % " w i d e , 3 V Ã 2 " h i g h , 1 1 V 2 "
S h o r t - t e r m s t a b i l i t y : Â ± 2 0 p a r t s i n T O 6 ( + 1 5 Â ° d e e p .
to +35°C); ±100 parts ¡n 10» (—20° to
N e t w e i g h t : 1 5 p o u n d s .
+ 6 5 Â ° C ) .
F r e q u e n c y m e a s u r e m e n t : P o w e r ( 5 0 - 1 0 0 0 c p s o n 1 1 5 / 2 3 0 v o r d e r ) ; 3 5 w a t t s .
5 0 / 6 0
 ± 1 0 % ,
r e q u i r e m e n t s :
c p s
s p e c i a l
3 0 0
R a n g e : 2 c p s t o c o u n t k c . t i m e b a s e a c c u r a c y . Price: 5 2 3 2 A ( c o l u m n r e a d o u t ) : $ 1 3 0 0 . 0 0 .
 ± 1
A c c u r a c y :
 ±
M o d e l
i n :
R e a d s
w i t h
S e l f c h e c k : k c C o u n t s p o s i t i o n e d d e c i m a l p o i n t . M o d e l 5 5 3 2 A ( i n - l i n e r e a d o u t ) : $ 1 5 5 0 . 0 0 .
k c .
1 0
G a t e
1 ,
t i m e s :
1 0 ,
P e r i o d m e a s u r e m e n t : 0 . 1 , 0 . 0 1 s e c o n d . M O D E L 5 6 2 A
1 0
k c
2
i n
R a n g e : 1 0 0 2 c p s i n t o 1 0 - p e n o d s i n g l e p e r i o d ; c p s c p s DIGITAL RECORDER
k c
t o
2
a v e r a g e ;
t o
i n p u t
d e v i c e
u s e d .
I d e n t i c a l
k c
a b o v e .
1 0 0 - p e r t o d
3 0 0
a n d
A c c u r a c y : i n  ± 1 0 /  ¿ s e c  ± a v e r a g e b a s e a c c u r a c y A c c u r a c y : r a t e : 5 l i n e s t o p e r s e c o n d , m a x i m u m .
P r i n t i n g
t i m e
( T r i g
e r r o r / p e r i o d s
 ± t r i g g e r f o r s i n e w a v e a v e r a g e d . r a t e d C o l u m n c a p a c i t y : T o 1 1 c o l u m n s ( 1 2 a v a i l a b l e
o n
s p e c i a l
o r d e r ) .
i n p u t s
g e r
e r r o r
a t
p o s i t i o n s ,
t h r o u g h
0
0 . 1 v r m s s e n s i t i v i t y m a y b e s t a t e d a s P r i n t a w h e e l s : 1 2 s i g n , a n d a n u m e r a l s O t h e r s y m
m i n u s
b l a n k .
9 ,
 ± 0 . 3 % m a x i m u m f o r s i g n a l s o f 4 0 d b
b o l s
s i g n a l - t o - n o i s e r a t i o . ) 32). a v a i l a b l e ( s e e - h p - A p p l i c a t i o n N o t e
R e a d s i n : M i l l i s e c o n d s w i t h p o s i t i o n e d d e c i
m a l p o i n t . D a f a i n p u f : P a r a l l e l e n t r y 1 - 2 - 2 - 4 B C D , " 1 "
P e r i o d s a v e r a g e d : 1 , 1 0 , 1 0 2 , 1 0 3 , 1 0 * , o r 1 0 5 . s t a t e : 4 v o l t s m i n . 7 5 v m a x i m u m , p o s i t i v e
S e l f - c h e c k : M e a s u r e s p e r i o d o f 1 0 0 k c . w i t h r e s p e c t t o " 0 " s t a t e . O t h e r c o d e s a n d
R a f i o m e a s u r e m e n t : p o l a r i t i e s a v a i l a b l e .
R e a d s : f a / f a X p e r i o d m u l t i p l i e r . R e f e r e n c e v o l t a g e s : R e f e r e n c e v o l t a g e s r e q u i r e d
R a n g e : f i : 1 0 0 c p s t o 3 0 0 k c ( I v r m s a c r o s s f o r b o t h t h e " 0 " a n d " 1 " s t a t e v o l t a g e .
1 0 0 0 o h m s ) ; f 2 : s a m e a s p e r i o d . R e f e r e n c e v o l t a g e s n o t t o e x c e e d  ± 1 5 0 v o l t s
Accuracy: ± 1 count of fi ± trigger error of fa. to chassis.
O u t p u t : 4 l i n e B C D ( 1 - 2 - 2 - 4 ) . P r i n t c o m m a n d s i g n a l : P o s i t i v e o r n e g a t i v e
I m p e d a n c e : 1 0 0 K o h m s o n e a c h l i n e . pulse, 20 /¿s or greater in widlh, 6 to 40 volts.
i n d i c a t e d
L e v e l : " 0 " v ; s t a t e s t a t e b y â € ” 1 b y v . a p p r o x i m a t e l y T r a n s f e r f i m e : A p p r o x . 2 m s . i n c h r o l l o r f o l d e d
P a p e r
3
S t a n d a r d
r e q u i r e d :
" 1 "
â € ” 2 4
p a p e r .
P r i n t C o m m a n d : C o n s i s t s o f s t e p f r o m â € ” 2 9 P o w e r r e q u i r e m e n t s : 1 1 5 / 2 3 0 v o l t s  ± 1 0 % ,
t o â € ” 1 v , d c c o u p l e d f r o m 2 7 0 0 - o h m
source. 5 0 / 6 0 c p s ( 4 p r i n t s p e r s e c o n d m a x i m u m a t
H o l d - O f f R e q u i r e m e n t s : P o s i t i v e v o l t a g e n o t 50 cps).
e x c e e d i n g - J - 1 2 V . M a y b e a n y w h e r e f r o m D i m e n s i o n s :
g r o u n d t o - f - 1 2 V . C a b i n e t m o u n t : 2 0 % i n . w i d e , 1 2 V 2 i n . h i g h ,
D i m e n s i o n s : 1 6 % " w i d e , S 1 / ? " h i g h , 1 1 1 / 2 " 1 8 ] / 2 i n . d e e p .
d e e p . R a c k m o u n t : 1 9 i n . w i d e , 1 0 ] / 2 i n . h i g h , 1 6 %
N e l w e i g h t : 1 3 p o u n d s . i n . d e e p b e h i n d p a n e l .
P o w e r r e q u i r e m e n t s : 1 1 5 / 2 3 0 v  ± 1 0 % , 5 0 / 6 0 W e i g h f :
c p s ( 5 0 - 1 0 0 0 c p s o n s p e c i a l o r d e r ) ; 3 5 w a t t s . C a b i n e t m o u n t : N e t 3 5 I b s . S h i p p i n g a p p r o x .
Price: 7 0 I b s .
M o d e l 5 2 1 2 A ( c o l u m n r e a d o u t ) : $ 9 7 5 . 0 0 . R a c k m o u n t : N e t 3 0 I b s . S h i p p i n g a p p r o x . 6 3
M o d e l 5 5 1 2 A ( i n - l i n e r e a d o u t ) : $ 1 1 7 5 . 0 0 . Ibs.
P r i c e : f o r 6 - c o l u m n o p e r a t i o n : $ 1 6 0 0 . 0 0 . A d d i
t i o n a l c o l u m n m o d u l e s : $ 7 5 . 0 0 e a c h . A n a l o g
MODEL o u t p u t o p t i o n : $ 1 7 5 . 0 0 . A d d i t i o n a l i n p u t c o n
5 2 3 2 A / 5 5 3 2 A n e c t o r f o r i n p u t c o u p l i n g : $ 4 3 . 0 0 . A d d i t i o n a l
FREQUENCY COUNTER i n t e r c o n n e c t i n g c a b l e : $ 3 5 . 0 0 e a c h .
M a x i m u m c o u n t i n g r a t e : 1 . 2 m e . M O D E L 5 8 0 A
R e g i s t r a t i o n :
N u m b e r o f d i g i t s : 6 . DIGITAL-ANALOG CONVERTER
D i s p l a y : M o d e l 5 2 3 2 A : n e o n c o l u m n ; M o d e l R e s o l u t i o n : 0 . 1 % o f f u l l s c a l e .
5 5 3 2 A : l o n g - l i f e i n d i c a t o r t u b e s , A c c u r a c y : 0 . 5 % o f f u l l s c a l e o r b e t t e r .
i n p u t s e n s i f / v i f y : 0 . 1 v r m s f o r s i n e w a v e s ; 1 v P o t e n t i o m e t e r O u t p u t : 0 t o 1 0 0 m v . M i n i m u m
f o r n e g a t i v e p u l s e s , 0 . 2 / Â ¿ s e c m i n . p u l s e l o a d r e s i s t a n c e : 0 . 5 m e g o h m . C a l i b r a t e c o n
w i d t h . t r o l . D u a l b a n a n a p l u g s f r o n t a n d r e a r .
i n p u t i m p e d a n c e : A p p r o x . 1 m e g o h m s h u n t e d G a / v a n o m e f e r O u t p u t : 0 t o 1 m a i n t o 5 0 0 0
b y 5 0 p f . o h m s o r l e s s . Z e r o a n d c a l i b r a t e c o n t r o l s .
Operating femperafure range: — 20° to -f-65°C. P h o n e  ¡ a c k f r o n t a n d r e a r .
T i m e b a s e : D a f a I n p u t : P a r a l l e l e n t r y 1 - 2 - 2 - 4 B C D ( 9 d i g i t s
L o n g - t e r m s t a b i l i t y : Â ± 3 p a r t s i n 1 0 7 p e r m a x i m u m ) ; " 1 " s t a t e : 4 v o l t s m i n . , 7 5 v
m o n t h . m a x . , p o s i t i v e w i t h r e s p e c t t o " 0 " s t a t e .
S h o r t - t e r m s t a b i l i t y : Â ± 2 p a r t s i n 1 0 8 ( + 1 0 Â ° O t h e r c o d e s a n d p o l a r i t i e s a v a i l a b l e .
t o + 5 0 Â ° C ) ; Â ± 2 0 p a r t s i n 1 0 s ( â € ” 2 0 Â ° t o R e f e r e n c e V o l t a g e s : R e f e r e n c e v o l t a g e s r e q u i r e d
+ 6 5 Â ° C ) . f o r b o t h t h e " 0 " a n d " 1 " s t a t e v o l t a g e . R e f
F r e q u e n c y m e a s u r e m e n t ; e r e n c e v o l t a g e s n o t t o e x c e e d  ± 1 5 0 v o l t s t o
R a n g e : 2 c p s t o 1 . 2 m e . chassis.
A c c u r a c y :  ± 1 c o u n t  ± t i m e b a s e a c c u r a c y . C o m m a n a * P u l s e : P o s i t i v e o r n e g a t i v e p u l s e , 2 0
R e a d s i n : k c w i t h p o s i t i o n e d d e c i m a l p o i n t . /  ¿ s e c o r g r e a t e r  ¡ n w i d t h , 6 t o 4 0 v o l t s a m p l i
S e l f c h e c k : C o u n t s 1 0 0 k c . t u d e .
G a t e t i m e s : 1 0 , 1 , 0 . 1 , 0 . 0 1 s e c o n d . T r a n s f e r T i m e : A p p r o x . 2 m i l l i s e c o n d s .
P e r i o d m e a s u r e m e n t : P o w e r R e q u i r e m e n t s : 1 1 5 / 2 3 0 v o l t s , 5 0 / 1 0 0 0
R a n g e : 2 c p s t o 1 0 k c i n s i n g l e p e r i o d ; 2 c p s
cps.
t o 1 0 0 k c i n 1 0 - p e r i o d a v e r a g e ; 2 c p s t o D i m e n s i o n s : 1 6 % i n . w i d e . 3 1 / 2 i n . h i g h , 1 1 V 2
1 m e  ¡ n 1 0 0 - p e r i o d a v e r a g e a n d a b o v e . i n . d e e p .
A c c u r a c y :  ± 1 /  ¿ s e c  ± t i m e b a s e a c c u r a c y P r i c e : O n r e q u e s t .
 ± t r i g g e r e r r o r / p e r i o d s a v e r a g e d . ( T r i g
g e r e r r o r f o r s i n e w a v e i n p u t s a t r a t e d P r i c e s f . o . b . f a c t o r y
0 . 1 v r m s s e n s i t i v i t y m a y b e s t a t e d a s D a t a s u b j e c t t o c h a n g e w i t h o u t n o t i c e