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Performance Tests
Model 3314A
AC/DC
DIGIT AL.
VOL TMETER
50 OHM
Figure 4-7. Residual and Variable DC Offset Accuracy
G. Average the readings taken in steps E and F and
record in the Performance Test Record under "АУС",
H. Set the delay on the Voltmeter to 0.010s, and
record the corresponding voltage.
I. This test passes if the average of the readings taken
in steps E & F is within x: 0.167V of the reading taken in
step H. (0.167V corresponds to 3? of phase difference.)
4-7. RESIDUAL DC AND DC OFFSET ACCURACY
This is a test to determine the accuracy of the Residual
DC Offset (OV DC offset) and the Variable DC Offset
|
function of the 3314A.
Specification:
Residual:
+ 0.5% of AC Amplitude Range
Variable:
+(3%
of setting,
+10mV,
+0.5%
of AC Amplitude Range)
If option 001:
+ 0.5% of AC Amplitude Range + 500V
Equipment Required:
AC/DC
Digital Voltmeter
1 MQ/1 pF Low Pass Filter
50 Ohm Feedthrough Termination
Procedures: (Residual)
A. Preset the 3314A.
B. Set the 3314A as follows:
Frequency ...........
yawa aaa wass 100kHz
Amplitude
«4235
ev x Foca
аня
10Ур-р
4-8
FEEDTHRU
ЈЕ
TERMINATION
C. Set the Digital Voltmeter as follows:
реновира
аса ERE A RW ges x DC
Triger vies xat
aqe ak ман
C KHOE
ч Internal
Range slo
iS
pu SPA Ya
x Ace Eq bd Auto
D. Connect the 3314A to the Digital Voltmeter as
shown in Figure 4-7.
E. Record
and compare
the Residual
DC
Offset
measured on the Digital Voltmeter to the limits cor-
responding to the 10.00V 3314A setting given in Table
`
NOTE
Tables 4-3 and 4-4 are provided for conve-
nience
in
spot
checking
the
measured
parameters. The values obtained in this test
may be permanently
recorded in the cor-
responding section of the Performance Test
Record.
:
F. Using the Range Down function, decrement the
amplitude displayed on the 3314А to the values listed in
Table 4-3. Record and compare the measured Residual
Offset at each decrement to its corresponding limits.
(Variable Offset)
G. Set the amplitude of the 3314A to 10V and adjust
the DC Offset to 5V.
H. Record and compare the DC Offset measured on
the Digital Voltmeter to the limits shown in Table 4-4
for the 10V setting with 5V DC offset.
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