Fluke ScopeMeter 123 - HF Gain Calibration Points Fast

123
Service Manual
5-8
3. Set the 5500A to source a 1 kHz fast rising edge square wave (Output SCOPE,
MODE edge) to the first calibration point in Table 5-1.
4. Set the 5500A in operate (OPR).
5. Press
to start the calibration.
6. Wait until the display shows calibration status
READY .
7. Press
to select the next calibration step, set the 5500A to the next calibration
point, and start the calibration. Continue through all calibration points in Table 5-1.
8. Set the 5500A to source a 1 kHz square wave (Output SCOPE, MODE wavegen,
WAVE square), to the first calibration point in Table 5-2.
9. Press
to select the first step in Table 5-2.
10. Press to start the calibration.
11. Wait until the display shows calibration status
READY.
12. Press
to select the next calibration step, set the 5500A to the next calibration
point, and start the calibration. Continue through all calibration points Table 5-2.
13. When you are finished, set the 5500A to Standby.
14. Continue at Section 5.6.2.
Table 5-1. HF Gain Calibration Points Fast
Cal step 5500A Setting
1)
(1 kHz, no
50Ω!)
Test Tool Input Signal
Requirements
1)
(1 kHz, t
rise
<100 ns,
flatness after rising edge:
<0.5% after 200 ns)
HFG & FI AB (CL 0600) 10 mV 20 mV
HFG & FI AB (CL 0601) 25 mV 50 mV
HFG & FI AB (CL 0602) 50 mV 100 mV
HFG & FI AB (CL 0603) 100 mV 200 mV
HFG & FI AB (CL 0604) 250 mV 500 mV
HFG & FI AB (CL 0605) 500 mV 1V
HFG & FI AB (CL 0606) 1V 2V
HFG & FI AB (CL 0607)
[HFG & FI A (CL 0608), HFG & FI B (CL 0628)]
2)
2.5V 5V
1)
As the 5500A output is not terminated with 50Ω, its output voltage is two times its set voltage
2)
After starting the first step in this table cell, these steps are done automatically.