Table of Contents
Advertisement
Quick Links
Preface
The Model GA-52Cx Magnetic Locator is a product of over forty-five years of experience in producing the
world's finest flux-gate magnetometers and magnetic detectors for aerospace, military and civilian
applications. The GA-52Cx incorporates the knowledge obtained from manufacturing under the most rigid
quality control standards. The heart of the GA-52Cx is its patented Schonstedt HeliFlux magnetic field
sensors. These sensors, acknowledged to be the world's finest, make possible the unequaled performance
of our locators.
June 2003
Instruction Manual
Model GA-52Cx
Magnetic Locator
Manufactured By
Schonstedt Instrument Company
100 Edmond Road
Kearneysville, WV 25430
(304) 725-1050
Fax (304) 725-1095
Made in USA
- 1 -
Advertisement
Table of Contents
Related Manuals for Schonstedt Instrument GA-52Cx
Summary of Contents for Schonstedt Instrument GA-52Cx
- Page 1 Made in USA Preface The Model GA-52Cx Magnetic Locator is a product of over forty-five years of experience in producing the world’s finest flux-gate magnetometers and magnetic detectors for aerospace, military and civilian applications. The GA-52Cx incorporates the knowledge obtained from manufacturing under the most rigid quality control standards.
-
Page 2: Table Of Contents
Table of Contents Operation Page Introduction Turn-On, Volume and Sensitivity Settings Search Procedure Application Notes Basic Signal Patterns Strongly Magnetized Markers Locating Manholes, Septic Tanks and Well Casings Locating Objects under Snow or Water and Tracing Barbed Wire Searching Areas Along a Chain Link Fence Locating Valve Boxes Locating Cast-Iron Pipes Locating Steel Drums... -
Page 3: Introduction
Operation Introduction The GA-52Cx Magnetic Locator detects the magnetic field of a ferromagnetic object. It responds to the difference in the magnetic field between two sensors spaced about 20 inches apart. The response is a change in the frequency of the signal emitted by the piezoelectric speaker. -
Page 4: Search Procedure
Search Procedure Set the sensitivity control to position 2 (Normal Range) and grasp the locator as illustrated. Because the upper sensor is located near where the locator is usually held, wrist watches may produce unwanted changes in the tones frequency. (Remove your wrist watch or hold the locator in the other hand). -
Page 5: Application Notes
Application Notes Basic Signal Patterns Figure 4. Signals from Vertical and Horizontal Targets After you have detected the presence of a target, hold the locator vertically and move it back and forth in an “X” pattern. The peak signal occurs directly over a vertical target, and over the ends of a horizontal target. The “X”... -
Page 6: Strongly Magnetized Markers
Strongly Magnetized Markers A strongly magnetized marker at or near the surface may provide location information that is misleading. The heavy line in Figure 7 represents the variations in tone frequencies when the locator is moved over the marker. When moving the instrument from A to B, the frequency of the tone increases and then suddenly decreases at B. -
Page 7: Locating Manholes, Septic Tanks And Well Casings
Figure 8. Locating Manhole Covers Figure 9. Locating Water Well Casings The GA-52Cx can be used to precisely locate the metal handles or reinforcing bars on septic tank covers at depths of up to 4 feet. Figure 10. Signal Pattern Provided by Septic Tank Covers... -
Page 8: Locating Objects Under Snow Or Water And Tracing Barbed Wire
Locating Objects under Snow or Water and Tracing Barbed Wire The locator can be used in flooded areas, just keep the electronic unit out of the water. Snow poses no problem. Thrust the locator into the snow as deep as necessary to locate the target. Figure 11. -
Page 9: Searching Areas Along A Chain Link Fence
Searching Areas Along a Chain Link Fence Searching in the vicinity of a chain link fence requires a reduced sensitivity setting and also some control over the orientation of the locator. As illustrated in Figure 13, position the locator horizontally, with its long axis perpendicular to the fence. -
Page 10: Locating Valve Boxes
Locating Valve Boxes Both the valve and its casing, when iron, provide strong magnetic fields that make them easy to locate. Plastic enclosures containing magnets are easily located at depths of 10 feet or more. Figure 15. Locating Valve Boxes and Casings Locating Cast-Iron Pipes As illustrated in Figure 16, cast-iron pipes produce the strongest magnetic signals at their joints. -
Page 11: Locating Steel Drums
Locating Steel Drums As shown in Figure 17, the GA-52Cx’s signal pattern will vary depending on the vertical or horizontal orientation of the drum and also how deep it is buried. A fifty-five gallon drum can be located at depths of up to 10 feet. -
Page 12: Maintenance
Maintenance The GA-52Cx is designed and built to give trouble-free operation. Normally, maintenance is limited to the occasional replacement of batteries. In the event that a malfunction does occur, refer to the trouble- shooting guide on page 11. It lists a few problems that can generally be corrected in the field so that you will be able to continue using the locator without interruption. -
Page 13: Troubleshooting Guide
Troubleshooting Guide Symptoms Possible Cause How to Check How to Fix Dead Dead Batteries Replace -------- Batteries not making Check for contact Clean contacts contact corrosion Battery leakage Do not remove* Return unit to factory Intermittent Batteries not making Check for corrosion Clean contacts good contact Uncontrollable... -
Page 14: Warranty And Shipping Information
LIMITED WARRANTY The Schonstedt Instrument Company (Schonstedt) warrants each product of its manufacture to be free from defects in material and workmanship subject to the following terms and conditions. The warranty is effective for 7 years (with the return of the Customer Registration Card) after the shipment by Schonstedt to the original purchaser.