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Table of Contents
Title Page
1 Introduction and Specifications ......................................................... 1-1
Introduction ............................................................................................ 1-1
Contact Fluke Calibration ...................................................................... 1-2
Safety Information ................................................................................. 1-2
Symbols ................................................................................................. 1-4
Specifications ........................................................................................ 1-4
General Specifications .......................................................................... 1-5
Resolution and Range Limits ................................................................ 1-6
Electrical Specifications ......................................................................... 1-6
Absolute AC Voltage ......................................................................... 1-6
Relative AC Voltage .......................................................................... 1-9
Absolute AC Non-sine Voltage .......................................................... 1-11
Absolute DC Voltage ......................................................................... 1-12
Relative DC Voltage .......................................................................... 1-12
Secondary Electrical Specifications....................................................... 1-13
AC Secondary Performance .............................................................. 1-13
DC Secondary Performance .............................................................. 1-15
Operating Characteristics .................................................................. 1-16
AUX Input Characteristics ................................................................. 1-17
Absolute Wideband Specifications (5790B/3, 5790B/5, and 5790B/AF) 1-17
2 Theory of Operation ............................................................................ 2-1
Introduction ............................................................................................ 2-1
Functional Block Diagram Discussion ................................................... 2-2
Digital Section Overview ....................................................................... 2-4
Analog Section Overview ...................................................................... 2-4
System Interconnect Detailed Circuit Description ................................. 2-6
Digital Motherboard Assembly (A4) ................................................... 2-6
Transformer Assembly (A22) ............................................................. 2-6
Analog Motherboard Assembly (A3) .................................................. 2-6
Digital Section Detailed Circuit Description ........................................... 2-7
CPU Assembly (A20) ......................................................................... 2-7
Front-Panel Assembly (A2) ............................................................... 2-7
Terminal LED Indicator Assembly (A25) ........................................... 2-7
Analog Section Detailed Circuit Description .......................................... 2-7