Ectron 560H, Инструкция по эксплуатации

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Calibration and Maintenance Model 560H
LINEARITY (FIGURE 7-1)
1. If the filtered output is to be used for this test
then the filter switch should be set to the
W/B position to eliminate phase shift error in
the measurement.
2. Adjust the amplifier to a gain of 1.
3. Adjust the precision divider to the reciprocal
of the gain.
4. Substitute the function generator for the
power supply in Figure 7-1.
5. Adjust the function generator for a triangular
output of 20 V p-p at 1 Hz.
6. Connect a jumper from the B input to the H
input on the oscilloscope.
7. Set S1 and S3 to 2.
8. Note and record the maximum and minimum
deviation on the oscilloscope (best straight
line through zero).
Linearity (%FS) =
max. dev.
20
× 100.
9. The linearity test may be repeated for other
gains by repeating steps 3 through 8.
INPUT IMPEDANCE (FIGURE 7-1)
1. Adjust the amplifier to a gain of 10.
2. Adjust the precision divider R2 to .100000.
3. Connect the DMM to the amplifier output
pins. (Do not use the monitor jacks on the
front of the amplifier.)
4. Set S1 to 2.
5. Record the deviation (E
o
) at the amplifier
output when S2 is switched from Position 1
to Position 2.
Z
in
=
1
⋅
10
7


E
o
(in mV)
.
OUTPUT IMPEDANCE (FIGURE 7-1)
1. Adjust the amplifier to a gain of 10.
2. Adjust the precision divider R2 to .100000.
3. Connect the DMM directly to the amplifier
output pins. (Do not use the monitor jacks on
the front of the amplifier.)
4. Set S1 to 2.
5. Record the deviation at the amplifier output
(E
o
) when S4 is switched from Set 1 to 2.
Z
out
=

E
o
(change in dc output)
0.01 A (output current)
.
FREQUENCY RESPONSE (FIGURE 7-2)
1. Adjust the amplifier to a gain of 1000.
2. Adjust the function generator to a 2 V p-p
100 Hz sine wave as seen on the
oscilloscope.
7-4
Figure 7-3: Test Setup for Noise and Common-mode Rejection