Bosch ETT 008.31 User Manual

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Repair instructions
Exhaust gas analyzer
ETT 008.31 - ETT 008.38

Bosch ETT 008.31 Specifications

General

Brand	Bosch
Model	ETT 008.31
Category	Measuring Instruments
Language	English

Summary

Repair Instructions

Important Information and Servicing

Safety, Calibration, and Test Equipment

Covers essential safety precautions, calibration mandates, test equipment, and calibration gases.

Analyzer Servicing Procedures

Details half-yearly and yearly service procedures for the exhaust gas analyzer.

Appliance Function Description

Measurement Principles and Corrections

Explains measurement methods, channels (CO, HC, CO2, O2), and influence correction factors.

System Adjustment and Fine-Tuning

Details system adjustment, self-test procedures, and fine-tuning of measuring channels.

Input Data and Parameterization

Covers engine speed, Lambda, corrected CO, parameterization, and filtration settings.

Extended Operating Functions

Input Mode Operations and Settings

Details checks and settings via Input Mode, including leak tests and parameter adjustments.

Test and Fine-Tuning Modes

Explains Test Mode and Fine-Tuning Modes for mean and upper-range values.

Function Tests, Troubleshooting, and Repair

Basic Functionality Checks

Covers visual inspection, gas duct, protective earth, start-up, analysis, and leak tests.

Error Messages and Fault Identification

Lists and explains error messages, possible causes, and initial troubleshooting steps.

Detailed Troubleshooting Guides

Addresses common faults like leakage, flow issues, indicating faults, RAM errors, and channel problems.

Repair and Component Replacement

Provides procedures for replacing components like lamps, sensors, motherboards, and pump seals.