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TM 11-6625-1614-15
b . S h o r t O H M S a n d C O M c a b l e s . M o d e l 4 1 0 C s h o u l d r e a d z e r o .
c . Vary Model 410C RANGE switch through remainder of OHMS
s e t t i n g s .
M e t e r s h o u l d r e a d z e r o , e x c e p t a t R X 1 0 w h e n m e t e r
s h o u l d r e a d a b o u t 0 . 1 o h m ( r e s i s t a n c e o f l e a d s ) .
d . D i s c o n n e c t O H M S a n d C O M c a b l e s . M o d e l 4 1 0 C m e t e r s h o u l d
r e a d
.
I f n o t , s e t O H M S A D J ( r e a r p a n e l ) f o r
Checks
reading on all OHMS RANGE settings.
5-34. AC ZERO ADJUST.
a . Set Model 410C FUNCTION SELECTOR to ACV; RANGE to .5 V.
b . S e t A C Z E R O v e r n i e r o n f r o n t p a n e l t o c e n t e r o f r o t a t i o n .
c . S h o r t M o d e l 4 1 0 C a c P r o b e a n d a c p r o b e c o m m o n ( s h o r t l e a d ) .
d.
Adjust
5-35. AC FULL SCALE ADJUST (.5 V RANGE).
a . C o n n e c t M o d e l 4 1 0 C a c p r o b e t o v o l t m e t e r c a l i b r a t o r o u t p u t
t e r m i n a l s .
Set Model 410C FUNCTION SELECTOR to ACV; RANGE to
5 0 0 v .
b . A d j u s t v o l t m e t e r c a l i b r a t o r t o p r o v i d e 3 0 0 v , 4 0 0 c p s - r m s
o u t p u t .
M o d e l 4 1 0 C s h o u l d r e a d 3 0 0 v ( ± 3 % ) . I f n o t , a d j u s t A 6 R 1 4
f o r p r o p e r r e a d i n g .
c . C o n t i n u e t e s t f o r r e m a i n d e r o f M o d e l 4 1 0 C a c r a n g e s u s i n g
s e t t i n g s p r o v i d e d i n T a b l e 5 - 8 .
5-36. TROUBLESHOOTING PROCEDURE.
5 - 3 7 . T h i s s e c t i o n c o n t a i n s p r o c e d u r e s d e s i g n e d t o a s s i s t i n t h e
i s o l a t i o n
o f
s y s t e m a t i c
a n a l y s i s
5 - 1 2
R1
for
Model
410C
m a l f u n c t i o n s .
T h e s e p r o c e d u r e s a r e b a s e d o n a
o f
t h e
Model 410C
r e a d i n g .
zero
deflection.
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