Fluke 5500A, Service Manual

Page: 153 / 296

SC600 Option
Calibration and Verification of Square Wave Voltage Functions
6
6-27
5500A CALIBRATOR
20V PK
MAX
HI
LO
TC
TRIG
OUT
1000V
RMS
MAX
20V
RMS
MAX
1V PK
MAX
20V PK
MAX
NORMAL AUX
SCOPE
V, ,
RTD
A, -SENSE,
AUX V
200V PK
MAX
BNC(F)
5500A-SC600
SC600
Cable
om056f.eps
Figure 6-5. MeasZ Function Calibration Setup
Set the Calibrator Mainframe in Scope Cal mode at the prompt to connect a 50
Ω
resistor.
Then follow these steps to calibrate MeasZ.
1. Connect the BNC cable to the SCOPE connector. Connect the other end of the BNC
cable to the BNC(f) connector attached to the 50
Ω
resistance.
2. Press the GO ON blue softkey.
3. Enter the actual 50
Ω
resistance.
Note
The Calibrator Mainframe will warn when the entered value is out of
bounds. If this warning occurs recheck the setup and carefully re-enter
the actual resistance insuring proper multiplier (i.e., m, u, n, p). If the
warning still occurs, repair may be necessary.
4. When prompted by the Calibrator Mainframe, disconnect the 50
Ω
resistance and
connect the 1M
Ω
resistance to the end of the BNC cable.
5. Press the GO ON blue softkey.
6. Enter the actual 1M
Ω
resistance.
7. When prompted for the first reference capacitor by the Calibrator Mainframe,
disconnect the 1M
Ω
resistance and leave nothing attached to the end of the BNC
cable.
8. Press the GO ON blue softkey.
9. Enter 0.
10. When prompted for the second reference capacitor by the Calibrator Mainframe,
connect the 50 pF capacitance to the end of the BNC cable.
11. Press the GO ON blue softkey.
12. Enter the actual 50 pF capacitance.