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Memory-Mag G-857
GEOMETRICS Memory-Mag G-857 Magnetometer Manuals
Manuals and User Guides for GEOMETRICS Memory-Mag G-857 Magnetometer. We have
2
GEOMETRICS Memory-Mag G-857 Magnetometer manuals available for free PDF download: Operation Manual, Pocket Reference Manual
GEOMETRICS Memory-Mag G-857 Operation Manual (78 pages)
Proton Precession Magnetometer
Brand:
GEOMETRICS
| Category:
Measuring Instruments
| Size: 3 MB
Table of Contents
Table of Contents
3
Introduction
7
What Is a Total Field Magnetometer
7
Magnetometer Applications
7
Terms Used in this Manual
8
The G-857
8
Magnetometer Set-Up
11
Sensor Fluids
11
Standard System Assembly
12
Figure 1. G-857 Proton-Precession Magnetometer
12
Figure 2. Sensor Staff Sections
13
Figure 3. Sensor Preparation
14
Figure 4. Staff / Sensor Assembly
14
Figure 5. Console Battery Compartment
15
Figure 6. G-857 Shoulder Harness
16
Figure 7. Assembled Magnetometer
16
Gradiometer Assembly
17
Figure 8. Location of 'Read' Key on Magnetometer Console
17
Figure 9. Gradiometer Components
18
Figure 10. Removing Standard Sensor Cable from Top Sensor
18
Figure 11. Top Sensor with Gradiometer Cable Attached
19
Figure 12. Bottom Sensor with Gradiometer Cable Attached
19
Figure 13. Connection of Threaded Staff Adaptors
19
Figure 14. Completed Gradiometer Staff
20
Figure 15. Attach the Gradiometer Switch Box
20
Base-Station Assembly
21
Figure 16. Base-Station Setup up Using Tripod Kit and G-857 Staff Section
21
Gps Assembly and Setup
22
Figure 17. Garmin Oregon GPS Option
22
Sensor Orientation
23
Figure 18. Alternate Orientations for G-857 Sensor Mount
24
Figure 19. Magnetic Inclination of the Earth's Field
24
Console Set-Up
25
Console Controls and Display
25
Figure 20. G-857 Console Display and Keypad
25
System Checkout
26
Operating Procedures
27
Clearing a Key Sequence
27
Setting the Internal Clock
27
Setting the Year
28
Setting the Line Number Marker
28
Setting GPS Recording Mode
28
Manual Tuning of the Magnetometer
29
Figure 21. Magnetic Field Intensity Variation, (Nt)
30
Automatic Tuning
31
Acquiring and Storing a Magnetic Field Reading
32
Recalling Measurements from Memory
33
Table 1. an Example of the Console Memory Stack
33
Erasing Magnetometer Readings
34
Automatic Reading Set-Up
36
Retrieving Magnetic Field Readings
37
Clock Set from GPS Time
38
Field Operation
39
Sensor Position and Measurement Repeatability
39
Magnetic Environment
40
Magnetic Surveying
40
GPS Error Messages
40
Standard Operation
41
Table 2 GPS Error Messages
41
Gradiometer Operation
43
Figure 22. Typical Survey Layout
43
Base Station Operation
44
Data Retrieval
45
Computer Connection and Download
45
G-857 Format Download
45
Legacy Format Download
51
Manual Transcription
52
Automatic Transcription in Real Time
53
Maintenance
55
Instrument Storage
55
Voltage Indicator
55
Batteries
55
Gel-Cell Batteries
56
Lithium Battery
56
Appendix
59
Magnetic Field Inclination (Degrees)
59
Magnetic Field Intensity Variation (Nt)
59
Troubleshooting
60
Rs-232 Interface
62
Table 3. RS-232 Cable Connector Pin Assignment
62
Front Panel Connector Pin Assignment
63
Legacy Mode on Output Format
64
Legacy Mode off Output Format
65
Auto Cycle Output Format
67
External Power
67
External Magnetometer Control
68
Internal Programming Switches
69
Figure 23. Location of Console's Internal Programming Switch
69
Polarize and Count Time - Switches 1 through 4
70
Table 4. Summary of Programmable Switch Settings
70
Internal Reset Switch
73
Figure 24. Internal Reset Switch
73
Specifications
74
Warranty and Service
75
Firmware Revisions
77
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Geometrics Memory-Mag G-857 Pocket Reference Manual (2 pages)
Magnetometer
Brand:
Geometrics
| Category:
Measuring Instruments
| Size: 0 MB
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