M E A S U R E M E N T T E C H N I Q U E; S E T U P F O R M O S T T E S T; C U R R E N T - M O N I T O R I N G R E S I S T O - Agilent Technologies E3646A/47A User Manual

E364xa series. dual output dc power supplies
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Appendix Service Information
Measurement Techniques
Measurement Techniques
Setup for Most Tests
M o s t t e s t s a r e p e r f o r m e d a t t h e f r o n t t e r m i n a l s a s s h o w n i n F i g u r e A - 1 . M e a s u r e
t h e d c v o l t a g e d i r e c t l y a t t h e ( + ) a n d ( - ) t e r m i n a l s o n t h e f r o n t p a n e l .
Figure A-1 Performance Verification Test Setup
Current-Monitoring Resistor
T o e l i m i n a t e o u t p u t c u r r e n t m e a s u r e m e n t e r r o r c a u s e d b y t h e v o l t a g e d r o p s
i n t h e l e a d s a n d c o n n e c t i o n s , c o n n e c t t h e c u r r e n t m o n i t o r i n g r e s i s t o r b e t w e e n
t h e ( - ) o u t p u t t e r m i n a l a n d t h e l o a d a s a f o u r - t e r m i n a l d e v i c e . C o n n e c t t h e
c u r r e n t - m o n i t o r i n g l e a d s i n s i d e t h e l o a d - l e a d c o n n e c t i o n s d i r e c t l y a t t h e
m o n i t o r i n g p o i n t s o n t h e r e s i s t o r e l e m e n t ( s e e R
DVM,
Scope, or
RMS
i n F i g u r e A - 1 ) .
M
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E3648a/49a2110-10682110-10702110-04572110-0996

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