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Model 3314A
e ay L E
КЕКЕК =
MUN NUN
mna ma
15
С
өгөө
|
[—————M
mud
OUT
Performance Tests
AC/DC
DIGITAL.
VOLTMETER
3V THERMAL
CONVERTER
Figure 4-14, Sine Wave Power Flatness
B. Set the 3314A as follows:
Amplitude ..................... eee 7.5Vp-p
Frequency ..............
kar e e d 10kHz
C. Set the Voltmeter
as follows:
RANGE
uua
x
Mi Rue v
ЫА
ab pee
1
Funet
croire des
EAE
SEO
e es hav
DC
THOeBOÉ
ve л куа быж E PO OO EI bm RR
Internal
CAUTION
Double check the 3314A Signal Amplitude.
The input signal to the Thermal Converter
must not exceed 3V RMS (8Vp-p).
D. Connect the 3314A to the Thermal Converter and
the Digital Voltmeter as shown in Figure 4-14.
E. Record
the voltage
measured
on
the
Digital
Voltmeter. This is the reference voltage for the 7.5Vp-p
33144 setting.
F. Set the frequency on the 3314A to 100Hz.
G. Carefully adjust the amplitude on the 3314A until
the voltage measured on the Digital Voltmeter is equal
to the reference voltage recorded in step E.
H. Record the 3314A's displayed amplitude (in Vp-p)
in the appropriate section of Table 4-8 in the Perfor-
mance Test Record.
I. Repeat steps G & H for the 3314A frequency set-
tings given below:
SOkHz
800kHz
1IMHz
5MHz
19.99MHz
J. Set the amplitude of the 3314A to 7.5Vp-p and the
frequency to 10kHz.
K. Note and record the voltage reading on the Digital
Voltmeter.
L. Using the data taken in steps E & K, calculate the
reference drift of the 3314A using the equation given
below:
Drift(dB)
=
20 Log (Step K Reference/Step E
Reference)|
M. If Drift(dB) is < 0.025dB, the data taken in steps
F,G,H, and I is acceptable. Proceed to step O.
N. If Drift(dB) is > 0.025dB, the data taken in steps
F,G,H, and I is unacceptable. Repeat steps A through
L. If the test fails again, perform the Amplitude Ac-
curacy
Test
for
amplitude
verification
and
repeat
Flatness test.
O. Disconnect
the
Thermal
Converter
from
the
33144.
4-17
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