Thermo Scientific SGD-O User manual

Part of Thermo Fisher Scientific
SGD-O
Non-Contacting Density Gauge
For Fracturing & Cementing
User Guide
P/N 717910
Revision D

SGD-O
Non-Contacting Density Gauge
For Fracturing & Cementing
User Guide
P/N 717910
Revision D

© 2012 Thermo Fisher Scientific Inc. All rights reserved.
All trademarks are the property of Thermo Fisher Scientific Inc. and its subsidiaries.
Thermo Fisher Scientific Inc. (Thermo Fisher) makes every effort to ensure the accuracy and completeness of this
manual. However, we cannot be responsible for errors, omissions, or any loss of data as the result of errors or
omissions. Thermo Fisher reserves the right to make changes to the manual or improvements to the product at
any time without notice.
The material in this manual is proprietary and cannot be reproduced in any form without expressed written
consent from Thermo Fisher.

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Thermo Fisher Scientific SGD-O User Guide v
Revision History
Revision Level Date Comments
A 10-2007 Initial release (ERO 5984).
B 04-2008 Revised per ECO 6268.
C 04-2008 Revised per ECO 6298.
D 01-2012 Revised per ECO 7896.

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Thermo Fisher Scientific SGD-O User Guide vii
Contents
Safety Information .............................................................................................. ix
Safety Considerations.............................................................................ix
Safety Summary .....................................................................................ix
Product Overview ............................................................................................. 1-1
Introduction........................................................................................ 1-1
The Gamma Source ......................................................................... 1-3
The Detector.................................................................................... 1-4
The Transmitter............................................................................... 1-4
Inputs & Outputs ............................................................................... 1-5
Output Signals.................................................................................... 1-5
Required Documentation.................................................................... 1-6
Getting Started................................................................................................... 2-1
Powering the Transmitter.................................................................... 2-1
Interface.............................................................................................. 2-1
The Direct Access Method............................................................... 2-1
Changing or Viewing Parameters .................................................. 2-2
Issuing Commands........................................................................ 2-2
Detector Setup & Pre-Calibration ................................................................. 3-1
Procedure............................................................................................ 3-1
Gauge Calibration............................................................................................. 4-1
General ............................................................................................... 4-1
Procedure............................................................................................ 4-1
Post Calibration - Setup at the Job Site ....................................................... 5-1
General ............................................................................................... 5-1
Procedure............................................................................................ 5-1
The Current Output............................................................................................ 6-1
Hold the Current Output ................................................................... 6-1
Clear All Holds ................................................................................... 6-2
Check the Input Signal ....................................................................... 6-2
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6

Contents
viii SGD-O User Guide Thermo Fisher Scientific
Adjusting the Gain Settings ............................................................................7-1
Overview............................................................................................. 7-1
Components and Jumpers................................................................... 7-1
Gain Control Settings ......................................................................... 7-3
Maintenance ......................................................................................................8-1
Overview............................................................................................. 8-1
Shutter Check ..................................................................................... 8-1
Tag & Label Check............................................................................. 8-1
Source Housing Check........................................................................ 8-4
Leak Tests ........................................................................................... 8-4
Troubleshooting & Service .............................................................................9-1
Recovering Memory............................................................................ 9-1
The Transmitter.................................................................................. 9-2
The Display ..................................................................................... 9-2
The DC Power Fuse......................................................................... 9-2
The Detector....................................................................................... 9-3
The FSU Pre-Amp Board.................................................................... 9-5
Reset Pulse Width Tests................................................................... 9-7
Gain Test ......................................................................................... 9-8
Disassembly ........................................................................................ 9-8
Contact Information ........................................................................... 9-9
Warranty........................................................................................... 9-10
Ordering Information .......................................................................................A-1
Specifications...................................................................................................B-1
Calibration Tables............................................................................................ C-1
Gauge Calibration Records ............................................................................D-1
Commonly Used Parameter & Command DACs.......................................... E-1
Toxic & Hazardous Substances Tables........................................................F-1
Related Technical Bulletins ..........................................................................G-1
Chapter 7
Chapter 8
Chapter 9
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
Appendix G