Stanford Research Systems SR865A, Operation Manual

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Appendix G Performance Tests 187
SR865A DSP Lock-in Amplifier
b) Adjust the voltmeter range (step iv-a, iv-b, or iv-c). Wait for the ac volts reading to stabilize.
Record the value.
c) Repeat 3a and 3b for each amplitude in the table.
4) Adjust the multimeter range to 100 mVAC (step iv-b)
5) Use the front panel to make the following adjustments
Touch {Ampl} to display the sine out amplitude keypad
Enter an amplitude of 100 mV.
6) Frequency response is checked at frequencies above 1 kHz. The sine amplitude is set to 100 mV
for all frequencies. The test frequencies are listed below.
Test Frequencies
10 kHz
100 kHz
1.0 MHz
a) Use the front panel to make the following adjustments
Touch {Fint} to display the internal frequency keypad
Enter the frequency from the table.
b) Wait for the multimeter readings to stabilize. Record the value.
c) Repeat steps 6a and 6b for all frequencies in the table.
7) This completes the sine output amplitude accuracy and frequency response test. Enter the results
of this test in the test record at the end of this section.