Echometer Company Model – M Manual Phone: (940) 767-4334
5001 Ditto Lane Page 2 Fax: (940) 723-7507
Wichita Falls, Texas 76302, U.S.A. E-Mail: info@echometer.com
Table of Contents
Introduction ............................................................................................................................................... 1
Limits of Liability .............................................................................................................................. 1
Copyright Notice ................................................................................................................................ 1
Trademarks ......................................................................................................................................... 1
Table of Contents ...................................................................................................................................... 2
1 - Safety Considerations .......................................................................................................................... 4
Echometer Schools ............................................................................................................................. 4
Additional Information....................................................................................................................... 4
2-Principles of Acoustic Measurements ................................................................................................... 5
Recording and Interpretation of Signals ............................................................................................. 5
Depth Calculation .............................................................................................................................. 6
3 – General Description – Model M ......................................................................................................... 7
Instrument Panel .................................................................................................................................... 8
Wellhead Attachments .............................................................................................................................. 9
Remote Fire Gas Gun ....................................................................................................................... 11
High Pressure Gas Guns................................................................................................................... 12
Accessories .......................................................................................................................................... 12
Model M Modifications and Enhancements…………………………………………………………13
4 - Operation ........................................................................................................................................... 15
General Recording Procedure .......................................................................................................... 15
Operation of the Model M with the Compact Gas Gun ................................................................... 16
Operation of the Model M with the Remote Fired Gas Gun ............................................................ 17
Recommendations for Optimum Performance................................................................................. 18
Automatic Gain Setting (AGS) Mode Characteristics ..................................................................... 19
Manual Gain Setting (MGS) Mode Characteristics ......................................................................... 19
Collar Channel Automatic Gain Control (AGC) ............................................................................. 19
Liquid Level Channel Gain Control ................................................................................................. 19
5 - Interpretation ..................................................................................................................................... 20
6 - Problem Wells ................................................................................................................................... 21
7 - Battery and External Power Information ........................................................................................... 22
Important Notes and Instructions for Rechargeable Batteries .......................................................... 23
8 - Testing/Troubleshooting.................................................................................................................... 24
Amplifiers Check ............................................................................................................................. 24
Filters Check .................................................................................................................................... 24
Microphone Cable check.................................................................................................................. 24
Microphone Check ........................................................................................................................... 24
9 - Maintenance ...................................................................................................................................... 25
Compact Gas Gun Pressure Rating .................................................................................................. 25
Compact Gas Gun Disassembly and Assembly Special Precautions ............................................... 25
Remote Fire Gas Gun Pressure Rating ............................................................................................. 26
Remote Fire Gas Gun Disassembly and Assembly Special Precautions ......................................... 26
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