Fluke 5500A, Service Manual

Page: 235 / 296

SC300 Option
Verification
6
6-109
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
SC300
Cable
5500A-SC300
50
Ω
Feed Through
Termination
BNC (F) to
Double Banana
Adapter
om065f.eps
Figure 6-28. Wave Generator Verification Setup
Set the Calibrator Mainframe to SCOPE mode, with the Wavegen menu on the display.
Press
O
on the Calibrator Mainframe to activate the output. Set the offset to 0 mV,
and the frequency to 1 kHz. Then follow these steps to verify the wave generator
function.
6-134. Verification at 1 M
Ω
1. Set the Calibrator Mainframe impedance to 1 M
Ω
(The blue softkey under SCOPE Z
toggles the impedance between 50
Ω
and 1 M
Ω
).
2. Connect the BNC cable to the Calibrator Mainframe’s SCOPE connector. Connect
the other end of the BNC cable to the 5790A INPUT 2 using the BNC(f) to Double
Banana adapter.
3. Set the 5790A to AUTORANGE, digital filter mode to FAST, restart fine, and Hi
Res on.
4. Program the Calibrator Mainframe to output the wave type and voltage listed in
Table 6-70.
5. Allow the 5790A reading to stabilize, then record the 5790A rms reading for each
wave type and voltage in Table 6-70.
6. Multiply the rms reading by the conversion factor listed to convert it to the peak-to-
peak value. Compare result to the tolerance column.
6-135. Verification at 50
Ω
1. Set the Calibrator Mainframe impedance to 50
Ω
(The blue softkey under SCOPE Z
toggles the impedance between 50
Ω
and 1 M
Ω
).
2. Connect the BNC cable to the Calibrator Mainframe’s SCOPE connector. Connect
the other end of the BNC cable to the 50
Ω
feedthrough termination then to the
5790A INPUT 2 using the BNC(f) to Double Banana adapter.
3. Set the 5790A to AUTORANGE, digital filter mode to FAST, restart fine, and Hi
Res on.