Fluke 5500A, Руководство по обслуживанию

Страница: 236 / 296

5500A
Service Manual
6-110
4. Program the Calibrator Mainframe to output the wave type and voltage listed in
Table 6-71.
5. Allow the 5790A reading to stabilize, then record the 5790A rms reading for each
wave type and voltage in Table 6-71.
6. Multiply the rms reading by the conversion factor listed to convert it to the peak-to-
peak value.
7. Multiply the peak-to-peak value by (0.5 * (50 + Rload) / Rload), where Rload = the
actual feedthrough termination resistance, to correct for the resistance error.
Compare result to the tolerance column.
Table 6-70. Wave Generator Verification at 1 M
Ω
Calibrator
Mainframe
Wave Type
Calibrator
Mainframe
output
(@ 10 kHz)
5790A
Reading
(V rms)
Conversion
Factor
5790A Reading x
Conversion Factor
(V p-p)
Tolerance
(V p-p)
square 5.0 mV 2.0000 250.00
µ
V
square 20.0 mV 2.0000 700.00
µ
V
square 89 mV 2.0000 2.770 mV
square 219 mV 2.0000 6.670 mV
square 890 mV 2.0000 26.8 mV
square 6.5 V 2.0000 195.1 mV
square 55 V 2.0000 1.65 V
sine 5.0 mV 2.8284 250.00
µ
V
sine 20.0 mV 2.8284 700.00
µ
V
sine 89 mV 2.8284 2.770 mV
sine 219 mV 2.8284 6.670 mV
sine 890 mV 2.8284 26.8 mV
sine 6.5 V 2.8284 195.1 mV
sine 55 V 2.8284 1.65 V
triangle 5.0 mV 3.4641 250.00
µ
V
triangle 20.0 mV 3.4641 700.00
µ
V
triangle 89 mV 3.4641 2.770 mV
triangle 219 mV 3.4641 6.670 mV
triangle 890 mV 3.4641 26.8 mV
triangle 6.5 V 3.4641 195.1 mV
triangle 55 V 3.4641 1.65 V