SatisGeo PMG-2 User Manual
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SatisGeo PMG-2 User Manual

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2021
PMG-2 User Manual
SatisGeo s.r.o.
1/29/2021

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Summary of Contents for SatisGeo PMG-2

  • Page 1 2021 PMG-2 User Manual SatisGeo s.r.o. 1/29/2021...

  • Page 2: Table Of Contents

    3.1. Measuring Sensor With Accessories............. 5 3.2. Processing Unit .................... 6 3.3. Operation Principle ..................7 3.4. PMG-2 Magnetometer Operating Controls ............ 7 3.5. Main Menu ....................7 3.6. Setup Menu ....................8 3.7. Device Menu ....................9 Putting the instrument into operation ...............11 4.1.
  • Page 3 8.1. USB Interface ....................19 8.2. Charger .......................19 8.3. Maintenance And Repair Work ..............19 8.4. Storage And Transportation .................19 8.5. Warranty ......................19 8.6. Accessories ....................20...

  • Page 4: Introduction

    1. INTRODUCTION The proton magnetometer and gradiometer PMG2 is a portable instrument which is powered by an internal battery. It is intended for ground measuring of the absolute value of the magnetic induction vector of the Earth´s magnetic field by measuring the frequency of the precession of protons in hydrogen nuclei.

  • Page 5: Specifications

    2. SPECIFICATIONS Measuring range 20 000 to 100 000 nT Resolution 0.01 nT ±0.5 nT Absolute accuracy Sensitivity (AUTO, MANUAL, WALK 0.2nT @ > 1.5s) Maximum gradient value * 1 000 nT/m Maximum displayed value of gradient 9999.9 nT Measuring cycle ca 0.5 s Triggering Manual, automatic in AUTO and WALK mode...

  • Page 6: Description Of The Instrument

    3. DESCRIPTION OF THE INSTRUMENT The proton magnetometer PMG2 consists of a processing unit, measuring sensors, and a post. 3.1. Measuring Sensor With Accessories The measuring sensor contains two coils properly arranged to suppress a disturbing external field. The coils are placed in a laminated cylinder container filled with a liquid rich in hydrocarbons.

  • Page 7: Processing Unit

    Figure 3.2 – Left – post assembly for gradient measurement. Right – post assembly for magnetic variation measurement. 3.2. Processing Unit The processing unit allows for communication with an operator via a keyboard and a graphic LCD display. It contains circuits for processing and analyzing the measured signal: tuning circuits, low-noise amplifier, filter, and shaping amplifier.

  • Page 8: Operation Principle

    [ ^ ] scanning series of consecutive data towards lower ordinal numbers Table 3.1 - PMG-2 operating controls. 3.5. Main Menu After switching the instrument on, by means of the push-button [ON/OFF], the initial logo appears on display.

  • Page 9: Setup Menu

    S 08:04:28 MAIN MENU 1. MEASURE 2. POSITION 3. MEMORY 4. SETUP Line:+1026 Pos:-0980 The topmost part of the display is reserved for actual time and status information. The status indicators are: this icon indicates that the USB cable is connected, and the device is ready for data transfer.

  • Page 10: Device Menu

    Push-button [ESC] serves to return to the setup menu without modification of parameters. S 08:04:28 SETUP MENU 1. MODE 2. TUNE 3. WALK MODE 4. DEVICE 1. MODE – item sets the sensor mode (Single or Gradient) for MANUAL and WAL measure.

  • Page 12: Putting The Instrument Into Operation

    4. PUTTING THE INSTRUMENT INTO OPERATION 4.1. Power Supply The instrument is delivered with a built-in hermetically closed lead-acid battery 12V / 3.4Ah. The battery compartment is accessible from the bottom part of the box by unscrewing the four bolts fastening the bottom cover of the instrument. The internal battery can be charged directly in the instrument with the charger supplied with the device.

  • Page 13: Basic Setting Of The Instrument

    5. BASIC SETTING OF THE INSTRUMENT 5.1. Setting The Internal Clock Time and date can be modified in the device setup menu, item DATE / TIME. A cursor indicates the place to be modified by numeric push-buttons. The cursor is moved by pressing [ v ] and [ ^ ].
  • Page 14 The tuning intervals are: 1. 20 000 - 21 000 nT 19. 45 500 - 48 000 nT 2. 20 900 - 22 000 nT 20. 47 700 - 50 200 nT 3. 21 900 - 23 000 nT 21. 49 900 - 52 600 nT 4.

  • Page 15: Setting The Backlight

    5.3. Setting The Backlight The backlight is switched on or off by selecting the radio button in the setup menu, item backlight. It can be modified by [ v ] and [ ^ ]. Power consumption is relatively high when using backlight, so it is recommended to set the time to the minimum value. 5.4.

  • Page 16: Recalling Stored Data

    By selecting the item POSITION in the main menu, ‘Line’, ‘Pos.’, and ‘Step’ can be edited. The current values are displayed, for example: S 08:04:28 SET POSITION Line: +01026 Pos.: -00980 Step: +10 A cursor appears at the place of the digit to be modified and can be moved by [ v ] and [ ^ ].

  • Page 17: Measurement

    6. MEASUREMENT The instrument and its accessories are transported in a case. It must be assembled before an operation. The measured value of the magnetic field depends very much on the presence of metal objects near the sensor. The operator should remove all the metal objects prior to measuring.

  • Page 18: Measuring In Walk Mode

    ‘Down sensor’ connector from the value of the magnetic field of the sensor connected to the ‘Up sensor’ connector. If the position on a grid should be used, the position of the first measurement must be set, which means setting the items ‘Line’, ‘Pos’, and ‘Step’ in the POSITION item of the main menu.

  • Page 19: Data Memory

    7. DATA MEMORY The instrument is equipped with a large memory where all readings and identifiers can be recorded. The capacity of the data memory is more than 1 800 000 readings. The readings obtained in various modes can be stored sequentially. The stored data can be displayed or transmitted to an external computer through the USB interface.

  • Page 20: Supplementary Information

    8. SUPPLEMENTARY INFORMATION 8.1. USB Interface The magnetometer PMG2 can be directly connected with a computer through the USB cable supplied by the manufacturer. The program supplied with the instrument transmits data from the magnetometer to the external computer. 8.2. Charger The charger is delivered with the instrument, allowing careful and optimum charging of the built-in lead-acid battery 12 V / 3.4 Ah, to use its full capacity and lifetime.
  • Page 21 8.6. Accessories 1 pcs Processing Unit (Console) 2 pcs Sensor 1 set Harness 1 pcs Foot Stick 4 pcs Middle Stick 1 set Anchor Ring with Ropes 3 pcs Tent Pin 1 pcs Interface Cable to PC 1 pcs Charger 1 pcs Instruction Manual 1 pcs...

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