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Model 415E
Section V
Figure 5-1 and Table 5-2
55I2A COUNTER
400H
AC VOLTMETER
200 CD
AUDIO OSCILLATOR
FEMALE
'
\BNC TO BANANA
TO
50 OHM
POST ADAPTER
FEMALE
FEED-THRU
BNC
TERMINATION
Figure 5-1.
Test Set Up
Table 5-2.
Performance Tests
1.
SENSITIVITY: 0. 15 pv RMS at max bandwidth (1 pv RMS on HIGH impedance crystal input).
Procedure.
a.
Connect equipment as shown in Figure 5-1
(Omit 355D Attenuator)
b.
Set 415E to NORM, 0 db, LOW, ON, with GAIN,
VERNIER, and BANDWIDTH controls full
clock-
Readings
0.15 v RMS
1.0
v RMS
c.
Set Oscillator to 1000 cps.
d.
Adjust 415E FREQ to peak meter (needle to
right).
e.
Adjust Oscillator output for 0 db 415E meter
reading.
f. The AC Voltmeter should read 0. 15 volt RMS
or
less
(This corresponds to a
sensitivity
of
0. 15
pvolt RMS or greater on 60 DB
range).
g.
Switch 415E INPUT to HIGH and adjust Oscilla¬
tor output for 0 db 415E meter reading.
h.
The AC Voltmeter should read 1.0 volt RMS
or
less
(This
corresponds
to
a
sensitivity of
1.0 pvolt RMS or greater on 60 DB range).
02152-1
3
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