Thermo Electron Ramsey ORETRONIC III, Operating And Service Manual

Page: 78 / 143

ORET RONIC
™
Tramp Metal Detector
R E C 4 1 0 5 4 - 1 0
F o llo w th i s p ro c ed u r e t o a d j u st t h e s e n s i t i v i t y o f t h e
T M D
fo r min e r a l o r e s .
1 . B a l a n c e t h e c o i l s a s ev e n l y a s p o s s i b l e u s i n g t h e p r o c ed u r e f r o m
4 .4 .1 C o r r e c t i n g C o i l I m b a l a n c e .
M a k e su r e t h a t t h e
MAT CODE
v a lu e ( S t e p 4 o f t h e co i l b a l an c in g
p r o c e d u r e ) i s s e t t o
4
.
2 . S c r o l l to t h e
COARSE
display an d p e rfo r m bo th a co arse and fine
me t a l a u to -c a l i b r a t io n . ( R e f e r to th e In it i al S e tu p P ro ce d u r e in
Ch apt e r 3. )
T h e co a r s e a n d f i n e v a l u e s wi l l b e d i ff e r en t f ro m t h e v a lu e s o b t ai n ed
u s in g ma t e r i a l ty p e co d e 3 .
CAUTION
Keep hands and clothing away from all moving or
rotating parts.
3 . S t a r t th e co n v ey o r b el t an d ru n ma t e r i a l th r o u g h th e co i l s.
O b s e r v e t h e n o i s e l e v e l o n t h e b a r g r a p h . T h e n o i s e l e v e l s h o u l d h av e
d e c r e a s e d ( f e w e r L E Ds l i t ) . I f i t d i d , u s e t h i s ma t e r i a l t y p e co d e .
I f t h e n o i se l ev e l i n cre a s e d , t h e p r o b l em i s n o t c au s e d b y t h e t y p e o f
ma t e r i a l c o n v ey ed . Go t o
S t e p 5 .
4 . If th e no i se l ev e l from t h e ore is st il l to o h ig h , scroll to th e
MAT
CODE
d i sp l ay , i n c r ea s e t h e v a l u e b y o n e, a n d r ep e a t S t e p s 2 an d 3 .
T h e v al i d n u mb e r s f o r ma t e r i a l t y p e c o d e ar e 0 – 7 .
I f y o u t ri ed u s in g th e v al u e s 4 , 5 , 6 , an d 7 a n d th e r e w a s n o
s i g n i f i c a n t i mp r o v e me n t o r t h e n oi s e l ev e l i n c r e a s e d , t h e p r o b l e m ma y
b e me c h a n i c a l o r el e c t r i c a l n o i s e o r t h e t r a m p t o b e d e t e c t e d may b e
t o o s ma l l fo r ex i st in g sy st e m c o n d i ti o n s .
5 . S c r o l l to t h e
MAT CODE
d i sp lay an d s e t t h e v al u e ba c k t o
3
.
Y o u ma y wa n t to t ry th e p ro c e d u r e f ro m 4 . 4 . 2 F i n d i n g t h e S o u r c e o f
M e c h a n i ca l o r E l e c t ric a l N o i s e to see i f th at may b e the p rob l e m.