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enraf 854 ATG Series User Manual

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Instruction manual 854 ATG Page 1
Instruction manual
series 854 ATG
level gauge
December 2005
Part no. 4416.220
Rev. 3
Enraf B.V.
P.O. Box 812
2600 AV Delft
Netherlands
Tel. : +31 15 2701 100
Fax : +31 15 2701 111
E-mail : info@enraf.nl
Website : http://www.enraf.com

Table of Contents

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enraf 854 ATG Series Specifications

General IconGeneral
Brandenraf
Model854 ATG Series
CategoryMeasuring Instruments
LanguageEnglish

Summary

Introduction

Principle of Measurement

Explains the working principle based on buoyancy variations detected by a force transducer.

Optional Functions

Lists optional boards and features like density measurement and alarm relays.

Remote Monitoring Capabilities

Describes capabilities for central monitoring via tank inventory systems.

Certifications and Approvals

Details certifications for explosion proofing and legal use.

Safety

Gauge Safety Aspects

Covers explosion proofing, environmental conditions, and housing features for safe operation.

Personal Safety Precautions

Emphasizes required PPE, safe practices, and handling precautions in hazardous areas.

Safety Conventions Explained

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

Commissioning

Pre-Commissioning Checks

Lists essential pre-commissioning checks for mechanical and electrical installation.

Drum and Displacer Installation

Step-by-step guide for installing the drum and displacer components.

Gauge Programming and Configuration

Details how to program the gauge using the PET or Ensite tool, covering items and protection levels.

Level Calibration Procedures

Describes procedures for calibrating the level measurement using different reference methods.

Operation

Display Information and Settings

Explains the LCD display, its initialization, and programmable display formats.

Repeatability Test Procedure

Procedure to test and ensure consistent measurement readings.

Lock Test Procedure

Procedure to lock the displacer position for specific tests or maintenance.

Displacer Movement Control

Explains commands to stop or control displacer movement during operation.

Unlock Command

Command to cancel previously issued operational commands.

Interface Measurement Setup

Details how to measure product/water interfaces using different interface settings.

Dip Mode Operation

Describes the dip mode function for measuring at a specific height above the product surface.

Level Calibration Verification

Procedures to verify the accuracy of the level calibration against reference points.

Data Items and Commands Summary

Summary of data items, error codes, and operational commands for system interaction.

Maintenance

Preventive Maintenance Procedures

Outlines tests and checks to maintain instrument performance and identify issues.

Instrument Cover Maintenance

Instructions on opening, closing, and maintaining waterproof seals of instrument covers.

Drum Compartment Maintenance

Detailed description and maintenance of the drum compartment, including bearings.

Electronic Compartment Overview

Description of the electronic components and sub-assemblies, and precautions for handling.

Force Transducer Calibration

Procedure for calibrating the force transducer using test weights.

Reference Encoder Synchronization

Steps to synchronize the internal reference encoder after software or hardware changes.

Trouble shooting

Displacer Movement Issues

Addresses issues with displacer movement, including manual control and potential causes.

XPU Error Codes and Solutions

Lists common XPU error codes and provides solutions for communication processor unit issues.

SPU Error Codes and Solutions

Lists common SPU error codes and provides solutions for servo processor unit issues.

SPU Status Interpretation

Explains how to interpret status bytes for alarms, modes, and general status from the SPU.

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