Ectron 441A, Инструкция по эксплуатации, Страница: 52 / 74

Frequency Range
Press the display once to go to
FREQUENCY
. Set the
U
pper frequency to
50000
and the
L
ower frequency to
00000
.
Press the display again to go to
VOLTS
. Set the
U
pper
voltage to
+
10.0
and the
L
ower voltage to
+
00.0
.
Press the display six times (or wait approximately twenty
seconds) to return to
OPERATE
.
Set the function generator for a 50 kHz square wave of
5 V p-p. Verify the waveform is present on the oscil-
loscope.
Increase the frequency on the function generator until
the waveform disappears on the oscilloscope. Record
the highest frequency for which the Model 441A pro-
duces an output. If needed, use the frequency meter to
determine the exact frequency.
Press the display once to go to
FREQUENCY
. Set the
U
pper frequency to
00001
.
Press the display seven times (or wait approximately
twenty seconds) to return to
OPERATE
.
Set the function generator to 1 Hz. Verify the Model
441A registers the frequency.
+L
0RGHO
$
+L
2Q
$
%
Figure 6-1
Frequency-range Setup
Alignment and Calibration Model 441A
6-2