5790B
Service Manual
3-18
Step Name Voltage to Apply Purpose of Calibration Step
70 V AC 20 kHz
70 V AC 50 kHz
70 V AC 100 kHz
70 V AC 300 kHz
70 V AC 500 kHz
70 V AC 1 MHz
60 V RMS, 20 kHz
60 V RMS, 50 kHz
60 V RMS, 100 kHz
60 V RMS, 300 kHz
20 V RMS, 500 kHz
20 V RMS, 1 MHz
220 V AC 100 Hz
220 V AC 1 kHz
220 V AC 10 kHz
220 V AC 20 kHz
220 V AC 50 kHz
220 V AC 100 kHz
220 V AC 300 kHz
200 V RMS, 100 Hz
200 V RMS, 1 kHz
200 V RMS, 10 kHz
200 V RMS, 20 kHz
200 V RMS, 50 kHz
200 V RMS, 100 kHz
60 V RMS, 300 kHz
Generates flatness calibration
data for the 220 V range
700 V AC 100 Hz
700 V AC 1 kHz
700 V AC 10 kHz
700 V AC 20 kHz
700 V AC 50 kHz
700 V AC 100 kHz
600 V RMS, 100 Hz
600 V RMS, 1 kHz
600 V RMS, 10 kHz
600 V RMS, 20 kHz
600 V RMS, 50 kHz
600 V RMS, 100 kHz
Generates flatness calibration
data for the 700 V range
1000 V AC 100 Hz
1000 V AC 1 kHz
1000 V AC 10 kHz
1000 V AC 20 kHz
1000 V AC 50 kHz
1000 V AC 100 kHz
1000 V RMS, 100 Hz
1000 V RMS, 1 kHz
1000 V RMS, 10 kHz
1000 V RMS, 20 kHz
600 V RMS, 50 kHz
600 V RMS, 100 kHz
Generates flatness calibration
data for the 1000 V range
AC Calibration Adjustment
Table 3-5 lists the equipment required to perform the ac calibration of the main
input. Before you begin, make 12 copies of Figure 3-6 and 10 copies of Figure 3-7.
Those are worksheets to help you calibrate the various ac points.
Table 3-5. Equipment Required for Main Input AC Calibration
Required Equipment Manufacturer and Model Minimum use Requirements
AC-DC Transfer Standard
Fluke Calibration 792A, with
accessories
60 mV to 1000 Vrms, 10 Hz to 1 MHz
Multifunction Calibrator Fluke Calibration 5730A 2 mV to 1000 Vrms, 10 Hz to 1 MHz
Amplifier for Above
Fluke Calibration 5725A
(higher Volt-Hertz product)
600V to 1000 Vrms, 10 kHz to 100 kHz
8-1/2 Digit Precision DMM Fluke 8508A
0-2 V dc, 10 nV resolution, 1 ppm
linearity
50Ω Type “N” Tee, Male-
Male-Male
Fluke P/N 912605 or
equivalent
(Stainless Steel type recommended)
50Ω Type “N” Female to
Double Banana Plug
Adapter
Pomona Model 1740 or
equivalent
1000 Vrms Breakdown Voltage,
minimum
Frequency counter Tektronix FCA3000
5 µHz/Hz Frequency Uncertainty or
Better
Binding Posts to 50Ω Type
“N” Male Adapter
Pomona Model 1796 or
equivalent
1000 Vrms Breakdown Voltage,
minimum
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