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Hologic DISCOVERY Wi - User Manual

Hologic DISCOVERY Wi
274 pages
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DISCOVERY
QDR
®
Series
FAN BEAM X-RAY BONE DENSITOMETER
TECHNICAL MANUAL
Hologic, Inc.
35 Crosby Drive
Bedford, MA 01730
USA
Phone in US: 800-321-4659
Fax (Domestic): 781-280-0670
Fax (International): 781-280-0671
Document 080-1085
Revision 008

Table of Contents

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Summary

Chapter 1 INTRODUCTION

1.3 Product Specifications

Details the technical specifications of the Discovery system, including scanning methods and X-ray system parameters.

Chapter 3 INSTALLATION

3.1 Pre-Installation Requirements

Outlines the necessary tools and documentation required for the Discovery system installation.

3.2 Uncrate and Move to Destination

Guides on inspecting for shipping damage, uncrating the unit, and moving it to its final location.

3.3 Install the System

Covers the installation process, including cabling and checking power line voltage.

3.4 Calibrate and Test the System

Covers essential calibration and testing procedures to ensure the system operates correctly.

3.5 A;D Gain Control Adjustment

Covers adjusting the A/D gain potentiometer to ensure consistent detector input regardless of X-ray flux variations.

Chapter 4 ALIGNMENT AND CALIBRATION

4.1 Check Table Alignment

Details the procedure to check table alignment using a measuring tape and software verification.

4.3 C-Arm Parallelism Adjustment

Procedure for adjusting C-arm parallelism using a digital level, ensuring the arm is parallel to the tank.

4.4 X-Ray Beam Alignment

Crucial procedure for aligning the X-ray beam with the detector array for optimal performance.

4.5 Aperture Calibration

Locates and sets exact starting positions of each aperture (slit) in motor steps and centers each slit.

4.6 Motor Calibration

Guides on calibrating system motors (AY, AR, TY, TX, TZ) using the SQDRIVER program for accurate motion limits.

4.8 A;D Gain Control Adjustment

Covers adjusting the A/D gain potentiometer to ensure consistent detector input regardless of X-ray flux variations.

4.14 Area, BMD, and BMC Calibration

Covers the three-stage calibration process for Area, BMD, and BMC measurements.

Chapter 6 FAULT ISOLATION

6.4 Power Problems

Provides troubleshooting steps for issues related to power supply, dead systems, or circuit breakers.

6.5 Motion Problems

Offers troubleshooting suggestions for failures related to table and C-arm movement, including checking the error log.

6.11 X-Ray Problems

Lists common X-ray related problems and suggested solutions, referring to functional descriptions.

6.12 X-Ray Alignment Problems

Addresses issues where the X-ray beam is not properly aligned, affecting repeatability.

Chapter 7 PREVENTIVE MAINTENANCE

7.2 Field Service Preventive Maintenance

Lists procedures for trained service personnel, including archives, backups, database checks, and alignment tests.

Chapter 9 SOFTWARE TOOLS

9.1 X-Ray Survey

Describes the X-Ray Survey utility for testing X-ray generation and detection functions.

9.2 SQDRIVER

Describes the SQDRIVER program used for motor calibration and troubleshooting motor movement problems.

9.3 SQVERIFY

Explains SQVERIFY as a diagnostic program for low-level system component tests.

Section A ERROR MESSAGES

Error Message List

Provides a comprehensive list of system error messages, their causes, and suggested actions or troubleshooting steps.

Hologic DISCOVERY Wi Specifications

General IconGeneral
BrandHologic
ModelDISCOVERY Wi
CategoryMedical Equipment
LanguageEnglish

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