Fluke 190-104 - Final Calibration; Warm up Final and ADC Timing

Fluke 190-104/190-204
Service Information
5-8
5.6 Final Calibration
Before starting the final calibration you must have done the WarmingUp &
PreCalibration (section 5.5)!
The final calibration requires input conditions that will be described in each step. After
starting a step, several steps that require the same input conditions will be done
automatically. So if you start for example calibration step CL 0852, the calibration can
include also step CL 0929, and at the end the display then shows CL 0929: READY
You must always start the Final Calibration at the first step, see Section 5.6.1. Starting at
another step will make the calibration invalid!
If you proceeded to calibration step N (for example step CL 0481), then return to a
previous step (for example step CL 0480) , and then calibrate this step, the complete final
calibration becomes invalid; then you must repeat the calibration starting at 5.6.1.
It is allowed to repeat a step that shows the status :READY by pressing
F3
again.
Error messages
Proceed as follows if an error message
ERROR: nnnn is displayed during calibration:
• if
nnnn < 5000 then check input signal and test leads, and repeat the current step by
pressing
F2
again.
• if
nnnn ≥ 5000 then check input signal and test leads, and repeat the final calibration
starting at section 5.6.1.
If the error persists the Test Tool is defective.
5.6.1 Warm Up Final and ADC Timing
Proceed as follows:
1. The Warm Up Final step (CL 0201) must be done with open inputs.
2. Press
F3
to start the calibration.
3. Wait until the display shows calibration status
:READY.
4. Press
F2
to select the next calibration step (CL 0570)
5. Connect the Test Tool to the 5500A SCOPE output as shown in Figure 5-3. Use 50Ω
termination.
6. Set the 5500A to generate a sine wave 50 MHz / 0.5 V pp (mode LEVSINE) at the
SCOPE output.
7. Set the 5500A in operate (OPR).
8. Press
F3
to start the calibration.
9. Wait until the display shows calibration status
:READY.
10. Set the 5500A in standby (STBY).
11. Continue at Section 5.6.2.