Agilent Technologies 22D Especificações Página 58
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3-14
Testing Performance
To verify bandwidth
1
Connect the oscilloscope calibrator output through a 50Ω feedthrough
to the oscilloscope channel 1 input.
2 Set up the oscilloscope.
a Set the time base to 500 ns/div.
b Set the Volts/Div for channel 1 to 200 mV/div.
c Press the Acquire key, then press the Averaging softkey.
d Turn the Entry knob to set #Avgs to 8 averages.
3
Set the calibrator to “Level Sine” and OPR/STBY to “OPR”.
4 Set the calibrator for 1 MHz and six divisions of amplitude.
5 Press Autoscale on the oscilloscope.
6 Press the Quick Meas key, then press the Peak-Peak softkey.
Wait a few seconds for the measurement to settle (averaging is then complete).
View the Pk-Pk reading at the bottom of the display.
Record the reading: V
p-p
= _______ V.
7
Change the frequency of the signal generator to the value shown below
for your instrument.
Table 3-7 Signal Generator Frequency Setting
8
Change the time base to 5 ns/div.
a Wait a few seconds for the measurement to settle.
b View the Pk-Pk reading at the bottom of the display.
c Record the reading: V
p-p
= ______ mV.
9
Calculate the response using this formula:
If the result is not ±3 dB, see the “Troubleshooting” chapter. Then return here.
10 Repeat this procedure (steps 1 to 9) for channel 2, 3, and 4, as applicable
to your oscilloscope model.
Proceed to the next step after you have completed the procedure for channels
2, 3, and 4, as applicable.
Selected Channel 54621A/21D 54622A/22D 54624A
Channel 1 60 MHz 100 MHz 100 MHz
Channel 2 60 MHz 100 MHz 100 MHz
Channel 3 ——100 MHz
Channel 4 ——100 MHz
20 10log
Step8Result
Step6Result
--------------------------------
⋅
service.book Page 14 Wednesday, December 18, 2002 8:35 AM
- Agilent 54621A/22A/24A 1
- Oscilloscope and 1
- Agilent 54621D/22D 1
- Mixed-Signal Oscilloscope 1
- The Oscilloscope At a Glance 2
- In This Book 3
- Contents 5
- To inspect package contents 9
- General Information 11
- Figure 1-1 11
- Table 1-2 13
- Accessories available 13
- Ω termination 13
- Table 1-3. Power Cords 14
- Performance Characteristics 15
- Horizontal 18
- Trigger System 19
- Setting up the Oscilloscope 27
- To adjust the handle 28
- To power-on the oscilloscope 29
- Intensity control 30
- Dim Bright 30
- To compensate your probe 31
- To connect a printer 36
- To connect an RS-232 cable 36
- Using Quick Help 40
- Language menu 41
- 2Press the 41
- Cleaning the oscilloscope 43
- Testing Performance 45
- List of Test Equipment 47
- Berg Strip, 8-by-2 1 48
- Jumper wire 48
- HP 34401A 51
- Set up the oscilloscope 54
- To verify bandwidth 57
- To verify trigger sensitivity 61
- Agilent 54622A/54622D/54624A 64
- Agilent 54621A/54621D 65
- Calibrating and Adjusting 67
- To adjust the power supply 70
- , and trigger parameters 73
- Troubleshooting 77
- If there is no trace display 79
- If you cannot see a channel 81
- Voltage Power Supply 83
- To check out the oscilloscope 84
- Power Supply” on page 5-11 85
- Is the fan running? 86
- Supply Voltage Tolerance 88
- To remove the cabinet 94
- To remove the fan 95
- To remove the floppy drive 96
- To remove the front panel 97
- To remove the display 98
- Gently apply outward 99
- To remove the system board 100
- Replacing Assemblies 101
- Figure 6-8 101
- To remove the power supply 102
- Figure 6-10 103
- Removing the power supply 104
- To remove the handle 106
- Replaceable Parts 107
- To order a replacement part 109
- Figure 7-1 110
- Table 7-1 111
- DECLARATION OF CONFORMITY 115
- ICES/NMB-001 116
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