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ORET RONIC
™
Tramp Metal Detector
R E C 4 1 0 5
4 - 4
WARNING
Failure to follow safe installation and servicing
procedures could result in death or serious injury.
Make sure only qualified personnel perform
installation and maintenance procedures in
accordance with the instructions in this manual.
Allow only qualified electricians to open and work in
the electronics cabinets, power supply cabinets,
control cabinets, or switch boxes.
Covers over the electronics and rotating parts must
always remain in place during normal operation.
Remove only for maintenance, with the machine’s
power OFF.
Replace all covers before resuming operation.
During maintenance, a safety tag (not supplied by
the factory) is to be displayed in the ON/OFF switch
areas instructing others not to operate the unit
(ANSI:B157.1).
4.4 False
Tripping
F a l s e t r i p p i n g me a n s t h a t so me t h i n g o th e r t h an t h e m e t a l t h e TM D i s s e t u p
t o d et e c t i s c a u s in g i t t o t ri p . Th e mo s t c o mmo n p r o b l em i s a s e n si t i v i t y s e t -
t i n g th a t i s to o h i g h fo r th e a mo u n t o f b a ck g ro u n d n o is e p r e s en t. Th i s ma k es
i t d iffi cu lt fo r th e T MD to d i sting u i s h b e t we e n t h e s i g n a l p r o d u c e d b y t r a m p
me t a l a n d th e b a c k g ro u n d s ig n al . An o t h er co m mo n p ro b l e m i s co il
i mb a l a n c e , w h i c h c a n c a u s e t h e r e c e i v e r c oi l t o g en e r at e o u t p u t s i g n al s wh e n
t h e r e i s n o t r a mp p a s si n g .
I f y o u r T M D i s f a l s e t r i p p i n g , u se t h e p r o c ed u r e s i n t h i s s e c t i o n t o h e l p
d e t e r mi n e th e c au s e . T h e p ro c ed u r e s ar e w ri t t en a s th o u g h y o u a re f a mi l i a r
w i t h u s i n g t h e o p e r a t o r i n t er f a c e . I f y o u a r e n o t f a mi l i a r w i t h t h e o p e r a t o r
i n t er f a c e , p l e a s e r e a d t h e d e t a i l ed d e s c r i p t i o n s o f t h e f r o n t p an e l k ey s , i n d i -
c a t o r s, an d d i s p l ay s in Ch ap t e r 3 o f th i s m a n u al b e fo re b eg in n in g an y o f
t h e s e p r o c ed u r e s .
4.4.1 Correcting
Coil
Imbalance
C o i l i mb a l a n c e c an r es u l t f r o m t h e t ran smi tt e r an d recei v ing co ils no t b ei ng
a l i g n ed w el l . I t c an al s o r e s u l t f ro m d if f e r en t a mo u n t s o f me t a l in t h e
c o n v ey o r st r u ct u r e o n e a c h s i d e o f t h e co i l s.
U s e t h i s p ro c e d u r e to b a l an c e t h e c o i l s . Alw ay s p e r fo r m t h i s p ro c e d u r e fi r st ,
b e fo r e t ry in g to d e t ermi n e a n y o t h e r c a u s e o f f a l s e t rip p i n g .
Summary of Contents for Ramsey ORETRONIC III
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Page 120: ...Oretronic III Tramp Metal Detector REC 4105 B 10 THIS PAGE LEFT BLANK INTENTIONALLY ...
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