Summary of Contents for Sib Geofiz Pribor SGD-TG
- Page 1 Sib Geofiz Pribor Ltd, Research-and-Manufacturing company Geophone Tester SGD-TG Operations Manual October 2011...
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Page 2: Table Of Contents
Sib Geofiz Pribor Ltd CONTENTS 1. Introduction ..........................4 1.1. Purpose ..........................4 1.2. Technical support ........................4 2. Performance specifications ......................5 2.1. Geophone natural frequency ....................5 2.2. Geophone damping ....................... 5 2.3. Geophone sensitivity ......................5 2.4. Geophone coil electrical resistance ..................5 2.5. - Page 3 Sib Geofiz Pribor Ltd 6. Connection Diagrams ........................ 45...
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Page 4: Introduction
The information presented in this Manual refers to the Tester firmware Version 2.1 (October, 2011). 1.1. Purpose The SGD-TG Tester is designed to measure parameters both of individual geophones and of geophone strings having various configurations. The Tester operation does not require connection to a computer or to an external power supply. -
Page 5: Performance Specifications
Sib Geofiz Pribor Ltd 2. Performance specifications When measuring geophone (geophone string) specifications, the Tester pre-calculates the rated value of any parameter to be measured and, based on this value, chooses the test signal amplitude and the measuring channel parameters and, consequently, the range of measurements. -
Page 6: External Temperature Sensor
Sib Geofiz Pribor Ltd Resolution: 0.1 MΩ. The leakage resistance is measured under constant voltage no more than 3.0V. 2.8. External temperature sensor Measurement range: -40ºС to +70ºС; Absolute measurement error: no more than ±1.5ºС; Resolution: 1ºС. -
Page 7: Overall Dimensions
Sib Geofiz Pribor Ltd 2.15. Overall dimensions The Tester dimensions are no more than 240х155х65 mm (LxWxH). 2.16. Mass The Tester mass without accessories is no more than 2.5 kg. 2.17. Completeness Tester with 6 V, 3.2Ah battery; AC/DC 12 V, 1 A mains adapter;... -
Page 8: Charging
Sib Geofiz Pribor Ltd If during operation the battery voltage drops down to 5.3 V, the Tester will be automatically switched off after giving three audible signals in succession. In attempting to switch on power supply of the Tester, the battery of which is discharged to 5.3 V and below, the Tester is switched on, gives a triple audible signal and is switched off right away. -
Page 9: Working With The Tester
Sib Geofiz Pribor Ltd operation from its battery. When the Tester is in the switched on state in the course of charging, the top line of its display shows voltage (in volts) at the battery terminals and the state of its charge in the form of AA battery symbolic representation. You can monitor a status of the battery on the screen by entering the menu “Main menu”... -
Page 10: Switching On And Off
Sib Geofiz Pribor Ltd Figure 4 4.2. Switching On and Off To switch on the Tester, press the ON/OFF button once. At the instant of switching on, the Tester checks voltage across the battery terminals. If the battery voltage is lower than or equal to 5.3V, the Tester will give a triple audible signal and turn off... -
Page 11: Tester Menu Navigation
Sib Geofiz Pribor Ltd The tester is switched off by one-off pressing the ON/OFF button. 4.3. Tester Menu Navigation All settings and Tester operation control are performed using a set of on-screen menus. Figure 5 shows the main menu. ATTENTION! All setting modifications are valid only until the Tester is switched off. - Page 12 Sib Geofiz Pribor Ltd The middle portion of the screen accommodates the lines of menu options. The left column shows the menu active option pointer , i.e. the pointer of the option that will be executed upon pressing the “ENTER” button. The menu options are numbered by digits from 1 to 9.
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Page 13: Menu Structure
Sib Geofiz Pribor Ltd 4.4. Menu Structure The Tester menu structure is shown in Fig. 6. Below are presented detailed descriptions of each item. Main menu Geophone menu 1 Select type... 1 Execute sequence of tests... 2 New copy of selected type 2 Setup menu... -
Page 14: Setup Menu
Sib Geofiz Pribor Ltd 4.4.1. Setup menu… - Geophone menu The “Geophone menu” is intended to manage the geophone library and to select the geophone type, the parameters of which will be used as a reference for further work. The Tester memory accommodates a library containing geophone reference data. The library is divided in two parts: read-only and variable libraries. - Page 15 Sib Geofiz Pribor Ltd the ENTER button. The desired geophone can be also selected from the screen list by pressing a relevant digital button “1”…“9”. ATTENTION! Modification of the selected geophone type shall be valid only until the Tester is switched off. To save modifications, execute the “Main menu”...
- Page 16 Sib Geofiz Pribor Ltd the natural frequency of the geophone moving system, Hz; the permissible deviation of the natural frequency from the rated value as a percentage; the sensitivity of the geophone, V·m ·s; the permissible deviation of the sensitivity from the rated value as a percentage;...
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Page 17: Setup Menu
Sib Geofiz Pribor Ltd Pressing ESC cancels all changes, including creation of a new geophone type in the library. In other words, if the ESC button is pressed after completion of the “New copy of selected type” option and, possibly, after editing parameters, no new entry will be saved in the variable portion of the library. -
Page 18: Setup Menu
Sib Geofiz Pribor Ltd string number can be immediately edited during testing (Section “4.5 Testing geophone strings”). 4.4.2.2. Series This parameter specifies a number of series-connected geophones and can take values from 1 to 99. 4.4.2.3. Parallel This parameter specifies a number of parallel identical branches, each composed of series-connected geophones. - Page 19 Sib Geofiz Pribor Ltd Repeated pressing the “START-STOP” button terminates testing. It should be noted that every test is performed during a certain time interval (up to several seconds), so, response to pressing of button may be not instantaneous. If pressing the button causes an audible signal to sound, continuous testing will be terminated after the current test.
- Page 20 Sib Geofiz Pribor Ltd press the START-STOP button, after which the “Tests sequence” dialogue menu will be displayed again. 4.4.3.2. Noise This parameter can take values 0 (Off) and from 1 to 100 mV. The parameter value can be changed both by the use of LEFT and RIGHT arrows and by entering a number. On entering 0, the parameter takes the “Off”...
- Page 21 Sib Geofiz Pribor Ltd The permissible limits of each parameter variation recalculated having regard to the specified string configuration and ambient temperature are displayed in square brackets for reference use. In this case, [>10] means that the leakage resistance should be more than 10 MΩ.
- Page 22 Sib Geofiz Pribor Ltd The permissible limits of each parameter variation recalculated having regard to the specified string configuration and ambient temperature are displayed in square brackets for reference use. In this case, [0.640-0.782] means that the damping should be no less than 0.640 and no more than 0.782.
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Page 23: Setup Menu
Sib Geofiz Pribor Ltd exceed 0.2%. To terminate the test, press the START-STOP button, after which the “Tests sequence” dialogue menu will be displayed again. 4.4.3.9. Impedance This parameter can take values “Off”, “Small signal” and “Large signal”. The parameter value can be changed using the LEFT and RIGHT arrows. -
Page 24: Setup Menu
Sib Geofiz Pribor Ltd This parameter determines whether the results of execution of the predefined sequence of tests should be written into memory, if a regular test has demonstrated any result beyond the permissible limits. With the “Off” parameter value, the test results are not stored. -
Page 25: Setup Menu
Sib Geofiz Pribor Ltd Figure 14 After this, select the desired field using LEFT and RIGHT (from left to right — day, month, year, hours, minutes), set the desired value using UP and DOWN and confirm changes using ENTER. Pressing ESC completes execution of this menu option without changing the current time and date. -
Page 26: Setup Menu
Sib Geofiz Pribor Ltd Polarity test – Last (4.4.4.5); Backlight brightness — 90% (4.4.10.1); Backlight OFF time — No (4.4.10.2); LCD contrast — 50% (4.4.10.3); Key beeps — Yes (4.4.10.4); Generator Frequency — 12 Hz (4.4.12.1);... - Page 27 Sib Geofiz Pribor Ltd In case of a rejected test, lines that contain a non-conforming parameters are marked “*” in the leftmost position. Parameters shown for a geophone test entry are: the geophone string number; the polarity test result including ‘+’, ‘-‘, or ‘+-‘ (for an string composed of geophones ...
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Page 28: Display Settings
Sib Geofiz Pribor Ltd Figure 16 Every line of the list contains the sequential number, entry type designation (S — self- test, N — normal test, R — rejected test), entry date and time and the geophone string number (only for test entries). To page the list, use the LEFT and RIGHT buttons. -
Page 29: Hw Diagnostics
Sib Geofiz Pribor Ltd 4.4.10.2. Backlight OFF time The parameter can take values “No” and from 1 to 60 minutes. The parameter value can be changed both by the use of LEFT and RIGHT arrows and by entering a number. -
Page 30: Hw Diagnostics
Sib Geofiz Pribor Ltd 4.4.12. HW diagnostics… - Sine wave generator The Tester is equipped with a controlled current generator employed to generate a test signal for measurements and self-test. The frequency and amplitude set in this menu are used for self-test only (4.4.13). When testing geophones, the signal frequency and amplitude are set as described in 4.4.3.8 and 4.4.3.9. -
Page 31: Hw Diagnostics
Sib Geofiz Pribor Ltd the harmonic distortion of the measuring channel; inherent offset voltage of the measuring channel; inherent noise of the measuring channel, root-mean-square value; resistance of standard 1000 Ohm resistor; resistance of standard 10.0 MΩ resistor;... - Page 32 Sib Geofiz Pribor Ltd If required, it is possible to promptly edit the next string number using the LEFT and RIGHT buttons, or to enter a new number for this string. To enter a number, press ENTER (the “Next” field will be cleaned), enter the required number and press ENTER to confirm or ESC to undo the entry.
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Page 33: Interaction Of The Tester With Pc
Sib Geofiz Pribor Ltd Once the sequence of tests is completed, an audible signal will be given. The test results are written into the non-volatile memory. If any of the test results is beyond the permissible limits and either “Continue test with reject” or “Save test data with reject”... -
Page 34: Usb Driver Installation
Sib Geofiz Pribor Ltd 5.1. USB Driver Installation This section describes the driver installation process under the Microsoft® Windows® XP operating system. The driver is to be installed for the first Tester connection to a specific PC only. Further working with the same PC does not require re-installation of the driver. - Page 35 Sib Geofiz Pribor Ltd Select “Don't search..” and click “Next”. Click “Have Disk...”. Click “Browse...” and select the driver location.
- Page 36 Sib Geofiz Pribor Ltd Select “SibGeofizPribor USB Device” and click “Next”. Click “Continue Anyway”. The driver is installed. Once installation is completed, the following box will be opened:...
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Page 37: Uploading Test Results To The Pc
Sib Geofiz Pribor Ltd Click “Finish”. Now, the driver installation is completed. To continue uploading of test results from the tester to the PC, follow the prompts from Section 5.2. If no uploading is required at the moment, press ESC on the Tester keyboard. - Page 38 Sib Geofiz Pribor Ltd The program requests the Tester for the number of entries available in its memory (7 in this case), reads the data from the Tester and saves them on the disk. To close the program window, press any key.
- Page 39 Sib Geofiz Pribor Ltd Click “OK”. Data from the file are imported to the spreadsheet of geophones: or self-diagnostics The file can be imported to MS Excel in the following way:...
- Page 40 Sib Geofiz Pribor Ltd click “File – Open…” in the program menu; in the appeared dialogue box select “Files of type” = “Text files (*.prn; *.txt; *.csv)”, find the desired file in the list of files: and click “Open”;...
- Page 41 Sib Geofiz Pribor Ltd and fractional parts” = “.” (point) in a small box and click “OK”: click “Ready”. Data from the file are imported to the spreadsheet of geophones: or self-diagnostics The geophone spreadsheet contains the following columns: “String#”—Number of a geophone string;...
- Page 42 Sib Geofiz Pribor Ltd “to” — maximum permissible noise value; “?” — result of comparison with a permissible noise value, “X” means a reject item; “Rlkg” — leakage resistance; “from” — minimum permissible leakage value; “?” — result of comparison with a permissible leakage value, “X” means a reject ...
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Page 43: Updating The Tester Firmware
Sib Geofiz Pribor Ltd means a negative result; “Tint” — the internal temperature of the Tester housing at the time of self-diagnostics performance; “Text” — readings of the external temperature sensor at the time of self-diagnostics performance; “Battery” — battery voltage at the time of self-diagnostics performance;... - Page 44 Sib Geofiz Pribor Ltd Upon updating the Tester firmware, all test and self-diagnostics entries as well as the content of variable geophone library are preserved. All settings of the Tester are also preserved. The read-only geophone library can be supplemented. It is not improbable that, in the event of significant update of the firmware, some newly added settings will have to be edited.
- Page 45 Sib Geofiz Pribor Ltd 6. Connection Diagrams The figure below shows the diagram of Tester connectors: External connectors are shown in the left part of the diagram. The connector Х5 is designed for USB-cable connection, the connector Х4 — for connection of the external power supply, the connector Х3 —...
- Page 46 Sib Geofiz Pribor Ltd The connection polarity of all geophone strings operating in a single system should be uniform. It is recommended to connect geophones in such a manner that, when striking from top downward, the Tester detects positive polarity.
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