Calibration and Adjustment
4
Agilent L4532A/ 34A Service Guide
47
Quick Performance Check
The quick per for man ce ch eck is a combin ation of in t er n al self t est an d
an abbr eviated p er for man ce t est (sp ecified by t he letter Q in th e
per for man ce ver ification tests). Th is test p rovid es a simple met hod to
achieve high con fiden ce in t he digitizer 's ability to fu n ction ally op er at e
an d meet sp ecification s. These t ests r epr esen t t he absolu te min imu m set
of p er for man ce checks r ecommen d ed followin g any ser vice activity.
Au ditin g t he digitizer 's p er for man ce for th e qu ick check p oin ts
(d esign at ed by a Q) ver ifies p er for man ce for n or mal accur acy dr ift
mechan isms. This t est d oes n ot check for abn or mal comp on en t failu r es.
To p er for m t he quick per for man ce check, do th e followin g:
Per for m a self test as d escr ibed on
p age 76
.
Per for m on ly t he per for man ce ver ification t ests in d icated wit h t he
letter Q.
If t he d igitizer fails th e quick p er for man ce check, adjustmen t or r epair is
r equir ed.
Performance Verification Tests
The p er for man ce ver ification t ests ar e r ecommen d ed as accept an ce tests
when you fir st r eceive t he digitizer. The accept an ce t est r esu lts should be
compar ed again st t he n omin al t emp er atu r e test limits. Aft er accep t an ce,
you should r ep eat t he per for man ce ver ification t ests at ever y calibr ation
in t er val.
If t he digitizer fails per for man ce ver ification , ad justmen t or r epair is
r equir ed.
Ad justmen t is r ecommen d ed at ever y calibr ation in t er val. If ad justmen t is
n ot made, you mu st est ablish a `guar d ban d ', u sin g n o mor e th an 80% of
t he sp ecification s, as t he ver ification limits.
Input Connections
All t est con n ection s to th e d igitizer ar e mad e usin g BNC con n ect or s an d
cables. The inp ut BNC con n ector location s ar e shown on
p age 19
.
