User Manual 9250
3-10 Portrayal
Adjustment
Procedures
Use the following procedures to calibrate the Model 9250. The
following paragraphs show how to set up the instrument for calibration
and what the acceptable calibration limits are.
CH1 Low Frequency
Response
Equipment:
Oscilloscope, waveform generator, x10 attenuator
Procedure:
36. Configure the waveform generator as follows:
37.
Function:
Square wave
38.
Frequency:
1kHz
39.
Amplitude:
1.6Vp-p (may vary depending on the
configured
gain)
40. Connect the waveform generator output to the 9250 channel
1 input
41. Connect the 9250 channel 1 through the x10 attenuator to the
oscilloscope
42. Set oscilloscope to dc coupling and 50
Ω
termination
Adjustment:
1. Adjust RV6 for best flatness of the square waveform shape
CH2 Low Frequency
Response
Equipment:
Oscilloscope, waveform generator, x10 attenuator
Procedure:
43. Configure the waveform generator as follows:
44.
Function:
Square wave
45.
Frequency:
1kHz
46.
Amplitude:
1.6Vp-p (may vary depending on the
configured
gain)
47. Connect the waveform generator output to the 9250 channel
2 input
48. Connect the 9250 channel 2 through the x10 attenuator to the
oscilloscope
49. Set oscilloscope to dc coupling and 50
Ω
termination
Adjustment:
1. Adjust RV2 for best flatness of the square waveform shape
