Bell 28E Adjustments page 44

SECTION 573-127-703
3.11 Auxiliary Contacts (continued)
CONTACT SWINGER- O PERATING BAIL
CLEARANC E
Note:
corresponds to that of the unit being checked.
(Refer to Contact Operating Requiremen ts
Table. )
of the transmitter distributor with the DXD
so that the end of the stop pulse image is in
line with the end of the stop pulse on the
DXD scale when transmission is continuous.
Use normal direct current line signal of
rna±
contacts.
Requirement
The contacts must open and close within the
range specified in the Contact Operating
Requirements Table.
To Adjust
Loosen the contact bracket mounting screws.
Position the contacts to meet the require ­
ments.
screws.
Unit
Levels
Code
5 7.00
5 7.42
6 8.50
Page 44
When strobing the auxiliary con­
Synchronize the signal generator
10% or 20 rna± 10%
Retighten contact bracket mounting
CONTACT OPERATIN G R EQUIREMENTS TABLE
Start of Pulse
Scale
Scale
Segment Division
Pulse 1
65
Pulse 1 75
Pulse 1 0
60
to strobe the
Tolerance Scale
(Div)
Segment
± 15 4
Pulse
±1 5 Pulse 4
±20
Pulse 4
End of Pulse
Scale
Tolerance
Division (Div)
65 ±15
90
± 15
60 +20