T O Calculate T Otal Measurement Error; T Emperature Coefficients - Agilent Technologies L4532A Series Service Manual

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Specifications

T o Calculate T otal Measurement Error

The digitizer s accur acy specification s ar e expr essed in the for m:
( % of r eadin g + % of r ange ). In addition to the r eadin g er ror an d r ange er ror,
you may need to add additional er ror s for cer tain oper ating conditions. Make
sur e you apply the con dition s as descr ibed in the footnotes on the specification
pages.
Understanding the " % of reading " Error The r eading er ror compen sates for
inaccur acies that ar e depen dent upon the input sign al level. The r eading er ror
var ies accordin g to the input level on the selected r an ge. This er ror is expr essed
in percen t of r eading. The following table shows the r eading er ror applied to the
digitizer s
23 C 5 C.
Understanding the " % of range " Error The r ange er ror compensates for
inaccur acies that r esult from the r ange you select. The r an ge er ror contr ibutes a
constan t er ror, expr essed as a percen t of r ange, in depen dent of the input sign al
level. The followin g table shows the r an ge er ror applied to the digitizer s
input r an ge specification for a nominal oper atin g temper atur e of 23 C 5 C.

T emperature Coefficients

Accur acy is usually specified at the calibr ation temper ature 23 C 5 C
temper atur e r an ge. This is a common temperatur e r an ge for many
oper ating en vironmen ts. You must add additional temper ature coefficient
er ror s to the accur acy specification if you are oper ating the digitizer
outside the
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If you ar e operatin g the digitizer outside the temper atur e r an ge specified,
apply an additional temper atur e coefficien t er ror.
8 V input r an ge specification for a nomin al oper ating temper atur e of
±
Range Input Level
8 V
8 V
8 V
Range
8 V
8 V
8 V
5 C temper atur e ran ge (the specification is per
Reading Error
(% of reading)
8 VDC 0.1
4 VDC 0.1
1 VDC 0.1
Input Level Range Error
(% of range)
8 VDC 0.20
4 VDC 0.20
1 VDC 0.20
Reading Error
(Voltage)
8 mV
4 mV
1 mV
Range Error
(Voltage)
16 mV
16 mV
16 mV
C).
Agilent L4532A/ 34A Service Guide
8 V
±