Fluke 8558A Service Manual

8588A/8558A
Reference Multimeter / 8½ Digit Multimeter
Service Manual
July 2019
© 2019 Fluke Corporation. All rights reserved. Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

Fluke 8558A Specifications

General

AC Voltage Frequency Range	10 Hz to 1 MHz
Operating Temperature	0 °C to 50 °C
Storage Temperature	-40 °C to 70 °C
Type	Digital Multimeter
DC Voltage Range	1000 V
DC Current Range	10 A
AC Current Range	10 A
Frequency Range	1 Hz to 10 MHz
Interface	USB
Weight	9.1 kg (20 lb)

Summary

Limited Warranty and Liability

Introduction and Safety

General Safety Precautions

Identifies conditions and procedures dangerous to the user or product.

Manual Calibration Adjustments

Adjustment Stores Explanation

Explains Certified and Baseline stores and their modification during adjustment.

Adjustment Steps Overview

Details the numbered adjustment steps and initial build/repair requirements.

Calibration Adjustment Screen Details

Understanding Adjustment Fields

Explains step number, input, target, and measured values in the adjustment screen.

Calibration Adjustment Points

Specific Adjustment Endpoints

Identifies the last adjustment steps for 8558A and 8588A models.

Calibration Verification Overview

Permissible Error Definitions

Explains permissible errors as 99% confidence, 1-year absolute errors.

DC Voltage Configuration Settings

DC Voltage Calibration Data

100mV and 1V Range Verification

DC Voltage Calibration Data (cont.)

10V Range Verification

DC Voltage Calibration Data (cont. 2)

Negative DC Voltage Ranges

DC Voltage Calibration Data (cont. 3)

High Voltage DC Ranges

Digitize DC Voltage Calibration

Digitized DC Voltage Verification

DC Current Calibration Verification

DC Current Range Data

DC Current Calibration Data (cont.)

High Current DC Ranges

DC Current Calibration Data (cont. 2)

mA and A Range Verification

DC Current Calibration Data (cont. 3)

DC Current Aperture Settings

AC Voltage Calibration Verification

AC Voltage Frequency Ranges

AC Voltage Calibration Data (cont.)

AC Voltage kHz and MHz Ranges

AC Voltage Calibration Data (cont. 2)

High Frequency AC Voltage

AC Voltage Calibration Data (cont. 3)

AC Voltage kHz and MHz Ranges (cont.)

AC Voltage Calibration Data (cont. 4)

AC Voltage Low Frequency Ranges

Resistance Calibration - Tru Ohms

Tru Ohms Resistance Ranges

Resistance Calibration - Low Current

Low Current Resistance Ranges

Resistance Calibration - Tru Ohms, Low Current

Tru Ohms Low Current Ranges

Resistance Calibration - HV Ohms

High Voltage Resistance Ranges

Resistance Calibration - HV Ohms (cont.)

HV Ohms High Resistance Ranges

Frequency Calibration Verification

Frequency Measurement Configuration

Frequency Calibration Data (cont.)

Frequency ≤1 MHz Ranges

Capacitance Calibration Verification

Capacitance Measurement Configuration

Capacitance Calibration Data (cont.)

Capacitance Measurement Ranges

Maintenance Procedures

Inspection and Cleaning Guidelines

Provides guidelines for inspecting and cleaning the instrument.

Fuse Replacement

Mains and Rear Input Fuse Details

Details replacement fuses for mains and rear input, including part numbers.

Product Self-Test and Fuses

Rear-Input Current Fuse

Describes the location and replacement procedure for the rear input fuse.

Running the Instrument Self-Test

Instructions on how to initiate and interpret the instrument's self-test.

Remove Hardware Components

Handle Removal Procedure

Remove Hardware Components (cont.)

Bottom Feet and Tilt Stand Bail Removal

Front-Panel Assembly Removal

Detailed steps for removing the front panel assembly from the chassis.

Remove Hardware Components (cont. 2)

Rear Panel Removal

Detailed steps for removing the rear panel assembly from the unit.

Remove Hardware Components (cont. 3)

Transformer Assembly Removal

Procedure for safely removing the transformer assembly from the chassis.

Remove Hardware Components (cont. 4)

A3 Digital PCA Assembly Removal

Instructions for removing the A3 Digital PCA assembly.

Remove Hardware Components (cont. 5)

A2 Analogue Assembly Removal

Instructions for removing the A2 Analogue PCA assembly.

Remove Hardware Components (cont. 6)

A1 Front PCA Removal

Steps for removing the A1 Front PCA, keypad, and display assembly.