Introduction - Fluke 5520A Service Manual

2-1. Introduction

This chapter provides a block diagram discussion of the calibrator's analog and digital
sections. Figure 2-1 shows the arrangement of assemblies inside the 5520A. The
Oscilloscope Calibration Option is described in the Options chapter.
The 5520A produces calibration outputs of the following functions and ranges:
DC voltage from 0 V to 1000 V.
AC voltage from 1 mV to 1000 V, with output from 10 Hz to 500 kHz.
AC current from 0.01 A to 20.5 A, with output from 10 Hz to 30 kHz.
DC current from 0 to 20.5 A.
Resistance values from a short circuit to 1.1 G .
Capacitance values from 190 pF to 110 mF.
Simulated output for Resistance Temperature Detectors (RTDs).
Simulated output for thermocouples.
FRONT
Motherboard (A3)
Figure 2-1. 5520A Internal Layout
Theory of Operation

Introduction

yg116f.eps
2
2-3