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Honeywell 854 ATG Series User Manual

Honeywell 854 ATG Series
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Instruction manual
Series 854 ATG level gauge

Table of Contents

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Honeywell 854 ATG Series Specifications

General IconGeneral
ManufacturerHoneywell
Series854 ATG
Operating Temperature-20°C to 50°C
Humidity Range0 to 100% RH
DimensionsVaries by model
WeightVaries by model
CertificationsATEX, IECEx, CSA

Summary

Preface to the 854 ATG Instruction Manual

Manual Overview and Purpose

Details the manual's scope and intent for technicians.

Legal Aspects and Disclaimers

Outlines copyright and liability limitations for the manual's use.

Additional Information Contact

Provides contact information for further assistance.

Introduction to Series 854 ATG Level Gauge

Principle of Measurement Explained

Describes the core measurement principle based on displacer buoyancy.

Optional Functions and Features

Lists optional capabilities like temperature and pressure measurement.

Remote Monitoring Capabilities

Explains how to monitor the gauge remotely via various systems.

Approvals and Certifications

Details ATEX, IECEx, and FM explosion-proof certifications.

Safety Precautions for 854 ATG Gauge

Gauge Safety Aspects and Warnings

Covers critical safety information and warnings for the 854 ATG.

Personal Safety Guidelines

Provides essential personal safety measures for hazardous environments.

Understanding Safety Conventions Used

Explains the meaning of Warnings, Cautions, and Notes in the manual.

Commissioning Procedures for 854 ATG

Pre-Commissioning Checks

Lists essential checks before starting the commissioning process.

Installing Measuring Drum and Displacer

Step-by-step guide for installing key mechanical components.

Configuring Gauge Parameters

Details the process of programming gauge settings and parameters.

Level Calibration Methods

Explains standard and specific methods for calibrating the level measurement.

Operating the 854 ATG Level Gauge

Display Information and Formats

Describes the LCD display and available data formats.

Repeatability and Lock Test Procedures

Instructions for performing repeatability and lock tests.

Freeze and Block Command Usage

Explains how to freeze or block displacer movement.

Interface and Dip Mode Operations

Details measurement of different interfaces and dip mode functionality.

Servo Auto Test (SAT) Function

Describes the automatic safety test for preventing tank overfill.

Data Items and Operational Commands Summary

Provides a summary of available data items and operational commands.

Maintenance and Servicing of 854 ATG

Preventive Maintenance Schedule

Outlines regular maintenance tests to check gauge health.

Instrument Cover Access and Care

Instructions for opening, closing, and maintaining instrument covers.

Drum Compartment Servicing

Details maintenance procedures for the drum compartment.

Electronic Compartment Maintenance

Procedures for servicing the electronic components of the gauge.

Force Transducer Calibration

Steps for calibrating the force transducer after component replacement.

Reference Encoder Synchronization

Procedure to synchronize the reference encoder after software changes.

Troubleshooting Common Issues

Resolving Displacer Movement Problems

Solutions for issues related to the displacer's free movement.

Understanding XPU Error Codes

Lists and explains error codes from the XPU processor unit.

Understanding SPU Error Codes

Lists and explains error codes from the SPU processor unit.

Interpreting SPU Status Requests

Guide to understanding status information from SPU via QS.

Appendix A: Part Numbers and Articles

Component Part Number Reference

Lists part numbers for various gauge components.

Appendix B: Displacer Information

Displacer Specifications and Types

Provides details on displacer area, volume, and weight.

Appendix C: ASCII Character Table

ASCII Code Reference Chart

A table mapping ASCII codes to characters and bit patterns.

Appendix D: Display Format Examples

Level and Temperature Display Formats

Examples of various display formats for level and temperature.

Appendix E: Printed Circuit Board Layouts

Overview of PCB Layouts

Visual reference for the physical layout of key PCBs.

Appendix F: Related Documentation

List of Associated Manuals and Guides

References to other relevant Honeywell Enraf manuals and documents.

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