Electrical Considerations; Grounding Considerations; Power Supply Requirements; Power Dissipation - Agilent Technologies 5517B User Manual

E l e c t r i c a l C o n s i d e r a t i o n s
G r o u n d i n g c o n s i d e r a t i o n s
CA UT I ON
To prevent ground loops, the laser head base should be isolated from
earth ground using insulators. The neutral lines of the ±15 volt power
supplies, which are used to power the laser head, should be grounded
within the electronics bay in which the supplies are housed.
P o w e r s u p p l y r e q u i r e m e n t s
Table 7
laser head. Note that other components of the system also use ±15V. Add
these to the laser head current requirements to obtain the overall system
requirements.
Table 7
S u p p l y V o l t a g e
+ 1 5 V o l t s
– 1 5 V o l t s
O t h e r P o w e r S u p p l y R e q u i r e m e n t s
L i n e R e g u l a t i o n
L o a d R e g u l a t i o n
R i p p l e + N o i s e
I s o l a t e d O u t p u t
P o w e r d i s s i p a t i o n
The laser head dissipates approximately 23 watts during operation.
F u s i n g
The following fuse information applies to all laser heads.
Agilent 5517B/BL/C/D/DL/FL User's Guide
O b s e r v e t h e c u r r e n t a n d g r o u n d i n g r e q u i r e m e n t s d e s c r i b e d i n t h e
f o l l o w i n g p a r a g r a p h .
lists the supply voltages, currents, and tolerances required by the
Laser Head Power Supply requirements
T o l e r a n c e
± 0 . 3 V o l t s
± 0 . 3 V o l t s
0 . 0 1 %
0 . 0 7 %
6 0 m i l l i v o l t s p e a k - t o - p e a k m a x i m u m
O v e r V o l t a g e P r o t e c t i o n ( R e c o m m e n d e d )
U n d e r V o l t a g e P r o t e c t i o n — c u r r e n t l i m i t e d ( R e c o m m e n d e d )
R e q u i r e m e n t
3 A m p e r e s
0 . 3 A m p e r e s
3
Installation
25