GEK-34054
in t er media t e bet ween t he va r ious tap s et t i n gs t o be obt a i n ed.
Th e
un i t i s a djus t ed a t t h e fact or y t o close i t s con t acts f r om a n y t ime
dia l pos i t ion
a t a
min i mum cur r en t
wit hin
10%
of
t h e t ap-plug
s et t in g.
The un i t r es et s at
80%
of t h e min i mum clos i n g va lue.
Rot a t e t he t i me dia l t o t he No. O t i me-dial s et t i n g a n d check, by
mea n s of a lamp i n t he ci r cuit , t ha t t h e con t a ct s jus t cl os e.
The poi nt a t whi ch t h e con t a ct s jus t clos e can
r un n i n g t he s t a t iona r y contact br us h in or out
adjus t i n g s cr ew.
Th i s s cr ew s hould be h eld
suppor t .
be adjus t ed, by
by mea n s of i t s
s ecur ely i n i t s
With t he con ta ct s jus t clos ing a t No.
0
t i me-di a l s et t i n g, t her e
sh ould be sufficien t ga p bet ween t h e s t a t iona r y con t act br us h a n d
it s meta l ba cking s t r i p t o ensur e appr oxi ma t ely
1/32"
wi pe.
Conn ect t h e oper a t in g-coi l t er mina l s t o a s our ce of t h e pr oper
f r equency a n d good wavef or m, ha vi n g a volta ge of
120
vol t s or
mor e, wi t h pur e r es is tance load boxes f or s et t i n g t h e cur r en t .
See Tes t -Cir cui t Figur e
14.
With t he t a p plug i n t he
2
a mp. tap a n d t h e t i me dial wher e t he
con t a ct s a r e jus t open, a djus t t he con t r ol s pr i ng t o jus t clos e
t he con t a ct s wi t h in t he li mi t s gi ven in Table XI I I, wh ich a r e
±2. 0%
of t a p a mps .
TABLE XIII
TAP RANGE
TAP
MINIMUM AMPS
MAXIMUM AMPS
0.5 -
4.0
2 AMP
1.96
2.04
2.0 - 16.0
2 AMP
1.96
2.04
Wit h t h e t a p
plug in the
2
a mp t a p and the t ime dia l a t No.
10
t i me s et t in g, check t he cur r en t r equir ed t o jus t move t h e di s k a wa y
f r om t h e s t op a r m.
This cur r ent should be wit hin t he limit s s hown in
Table XIV, wh i ch a r e
±6%
of t a p a mper es .
If t he dis k moves a t t he
lower limi t , check t ha t t he movemen t is not over on e-ha lf inch
( 1/2")
mea s ur ed a lon g t h e per ipher y of t he dis k.
TABLE XIV
TAP RANGE
TAP
MINIMUM AMPS
MAXIMUM AMPS
0.5 -
4.0
2 AMP
1.88
2.12
2.0 - 16.0
2 AMP
1.88
2.12
Time Tes t s
Wit h t h e t a p plug in the
2
a mp t a p a n d t he t ime dial a t No.
5
t ime s et t in g, apply f ive t imes t a p cur r en t t o t he r ela y.
17
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