Sib Geofiz Pribor SGD-TG Operation Manual Download

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Sib Geofiz Pribor

Ltd, Research-and-Manufacturing company

Geophone Tester SGD-TG

Operations Manual

October 2011

Summary of Contents for SGD-TG

Page 1: ...Sib Geofiz Pribor Ltd Research and Manufacturing company Geophone Tester SGD TG Operations Manual October 2011 ...

Page 2: ...ss 7 3 Built in battery 7 3 1 Maintenance and care 7 3 2 Charging 8 4 Working with the Tester 9 4 1 Design 9 4 2 Switching On and Off 10 4 3 Tester Menu Navigation 11 4 4 Menu Structure 13 4 4 1 Setup menu Geophone menu 14 4 4 2 Setup menu String menu 17 4 4 3 Setup menu Sequence of tests 18 4 4 4 Setup menu Operation conditions 23 4 4 5 Setup menu Date Time 24 4 4 6 Setup menu Default settings 25...

Page 3: ...Sib Geofiz Pribor Ltd 6 Connection Diagrams 45 3 ...

Page 4: ...olatile flash memory to store geophone testing and self testing results The built in memory capacity is sufficient to store 32 756 entries An external computer connected via USB interface is used to upload accumulated data The data is rewritten to the computer in the form of two files the first of which contains the geophone geophone string testing data and the second one self testing data The fil...

Page 5: ...ing Measurement range 0 1 to 0 85 Relative measurement error no more than 1 5 Resolution 0 001 2 3 Geophone sensitivity Measurement range 0 to 6553 5 V m s Relative measurement error no more than 2 Resolution 0 1 V m s The sensitivity is calculated based on the results of measuring other geophone parameters using the reference value of the geophone moving mass provided by the geophone manufacturer...

Page 6: ...ours Voltage range of an external DC power supply 10 5 V to 16 V Maximum current consumed from an external power supply during charging with the Tester switched on 0 5 A under 12 V voltage Maximum current consumed from an external power supply during charging with the Tester switched off 0 3 A under 12 V voltage Built in real time clock is supplied from the CR2032 lithium battery with the service ...

Page 7: ...charged Before long term storage of the Tester more than 1 month the battery should be fully charged and then disconnected To disconnect the battery remove the Tester rear cover by unscrewing 4 fixing screws lift the lower unsecured edge of the main printed circuit board PCB Fig 1 and shift it so that the PCB connectors disconnect from the counterparts on the filter board Throw the main PCB sidewa...

Page 8: ...nection of an external power supply ATTENTION When using an external power supply operating from 220AC mains it is necessary to make sure first that it functions properly The DC output circuit should be galvanically isolated from the AC input circuit Connect an external power supply to the 12V socket of the Tester If the external power supply voltage is within the permissible limits the battery st...

Page 9: ... LED is permanently lit It is recommended to charge the battery at a temperature from 10 to 40 С Charging time of a discharged battery at room temperature is approximately 10 hours Completion of charging is evidenced by steady green light of the LED indicator Charging at low temperatures does not enable the battery to reach full capacity Monitor the temperature inside the tester housing by reading...

Page 10: ...0 seconds to signalize the necessity of battery charging The battery is charged with a connected external power supply irrespective of whether the Tester is switched on or off After switching on the Tester is operated from the external power supply if it is connected or from the built in battery if the external power supply is not connected Once the Tester is switched on the program is loaded and ...

Page 11: ...mperature sensor or question marks when the sensor is not connected voltage across the built in battery terminals symbolic representation of a battery and the state of charge of the built in battery Readings in the status line are updated every 10 seconds Pressing the 0 button will cause force update of the status line and checking of the remote temperature sensor connection Pressing the MEMORY bu...

Page 12: ...ed dialogue menus Each dialogue menu option has a related parameter the value of which is displayed at the end of the respective line Parameters can be presented by a numerical value numerical parameter or a mnemonic symbol for example On Off mnemonic parameter The numerical parameter value can be modified using two methods pressing the LEFT or RIGHT pointing buttons will increment or decrement th...

Page 13: ...st file 2 Memory usage 3 List files 4 Upload files 5 Erase all files 3 Display settings 1 Backlight brightness 2 Backlight OFF time 3 LCD contrast 4 Key beeps 4 HW diagnostics 1 Display 2 Sine wave generator 3 Self test 4 Power String menu 1 String number 2 Series 3 Parallel 4 Cable resistance 5 Interval 6 Lead in cable length 7 Presence of shunts 8 Shunt resistance Tests sequence 1 Polarity 2 Noi...

Page 14: ...cation by the User The variable library can hold data on 30 geophones as a maximum The total number of geophones in the libraries cannot exceed 99 4 4 1 1 Select type When this option is executed the list of geophones the data on which are available in the Tester libraries is displayed on the screen The display process starts from the page containing the entry of the currently selected geophone Ge...

Page 15: ...selected geophone will be created in the variable portion of the library and a list of the geophone parameters will be displayed Edit and save the new entry in memory as described below 4 4 1 3 Once the new entry is saved the newly created type of geophone will be selected for further operations 4 4 1 3 Edit selected type This dialogue menu allows viewing and editing parameters of a selected or ne...

Page 16: ...erformed by one of the following methods pressing the LEFT and RIGHT buttons decrements or increments the parameter by one step respectively when the ENTER button is pressed the blinking cursor appears in the empty bottom line of screen Enter the desired number using 0 9 and buttons The LEFT button deletes the last entered character End the data input by pressing the ENTER button Pressing ESC in t...

Page 17: ...esigned to set parameters of a geophone string ATTENTION Reconfiguration of a geophone string shall be valid only until the Tester is switched off To save changes execute the Main Menu 2 Setup menu 8 Save Settings sequence Changing parameters is performed as described in 4 3 Tester Menu Navigation A geophone string is an electric bipolar circuit with series parallel connection of geophones The Tes...

Page 18: ...values Yes or No 4 4 2 8 Shunt resistance This parameter specifies the resistance of geophone shunts and can take values from 0 to 10 000 Ohm 4 4 3 Setup menu Sequence of tests The Sequence of tests dialogue menu has two functions setting up the sequence of tests for subsequent automatic execution starting up continuous execution of an individual test or test group Each menu option allows enabling...

Page 19: ...he noise level at their location Generally the 100mV level is acceptable Testing is performed in semi automatic mode it is necessary to strike a gentle blow from top downward in horizontal direction for horizontal geophones against each geophone in an string The Tester performs continuous recording of the string signal When the signal level exceeds the selected operating threshold the Tester detec...

Page 20: ...TOP button after which the Tests sequence dialogue menu will be displayed again Figure 10 4 4 3 3 Leakage This parameter can take values 0 Off and from 1 to 100 MΩ 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 value The number specifies the minimum permissible value of leakage resistance in megohms Lea...

Page 21: ...tton after which the Tests sequence dialogue menu will be displayed again 4 4 3 5 Natural frequency This parameter can take values Off and On The parameter value can be changed using the LEFT and RIGHT arrows Pressing the START STOP button can start continuous performance of the test group including the natural frequency test the damping test and the sensitivity test without writing results into m...

Page 22: ... square brackets for reference use In this case 18 1 22 1 means that sensitivity should be no less than 18 1 and no more than 22 1 V m s To terminate the test press the START STOP button after which the Tests sequence dialogue menu will be displayed again 4 4 3 8 Distortion This parameter can take values 0 Off 1 On and from 2 to 79 Hz The parameter value can be changed both by the use of LEFT and ...

Page 23: ...lity since impedance is not specified by manufacturers To terminate the test press the START STOP button after which the Tests sequence dialogue menu will be displayed again 4 4 4 Setup menu Operation conditions This dialogue menu is used to set up additional parameters which have influence on performance of tests ATTENTION A change in settings is valid only until the Tester is switched off To sav...

Page 24: ...rmines the ambient temperature at which testing of geophones is conducted The measurement temperature value is used to recalculate the reference geophone parameters that are commonly specified for 25ºС To check the test results corrected values of geophone reference parameters are used 4 4 4 5 Polarity test This parameter can take the First and Last values The parameter value can be changed using ...

Page 25: ...kets Geophone type the first one in the read only library 4 4 1 1 String number 00000001 4 4 2 1 Series 1 4 4 2 2 Parallel 1 4 4 2 3 Cable Resistance per Unit Length 100 Ohms km 4 4 2 4 Interval 5 m 4 4 2 5 Lead in cable length 10 m 4 4 2 6 Presence of shunts Yes 4 4 2 7 Shunt resistance 1000 Ohms 4 4 2 8 Polarity Off 4 4 3 1 Noise Off 4 4 3 2 Leakage Off 4 4 3 3 Resistance On 4 4 3 4 Natural freq...

Page 26: ... values of all parameters to the written into the Tester nonvolatile memory All changes in the Tester settings will be lost unless they are saved by execution of this menu option The only exception to this rule is the String number parameter the behaviour of which is described in 4 5 Testing geophone strings 4 4 9 Memory menu This menu serves to manage stored test and self diagnostics results 4 4 ...

Page 27: ...lt in standard resistor resistance of built in standard resistor simulating leakage currents built in standard resistor impedance generator frequency at which measurement was carried out generator amplitude at which measurement was carried out The permissible range for each controlled value is given in square brackets 4 4 9 2 Memory usage Execution of this menu option causes the overall number of ...

Page 28: ...on 5 Interaction of the Tester with PC 4 4 9 5 Erase all files Execution of this menu option causes the following warning to be displayed on the screen All test data will be erased Continue Pressing the ESC button means return to the Memory menu Once the ENTER button is pressed all testing and self test entries are deleted from the nonvolatile memory 4 4 10 Display settings This dialogue menu is d...

Page 29: ...s Display 4 4 11 1 Screen Execution of this menu option causes all screen points to switch on This enables checking integrity of the display i e the absence of faulty points This checking is stopped by pressing the ESC button 4 4 11 2 Backlight Execution of this menu option causes saw tooth variations of the display backlight brightness from minimum to maximum and backward This checking is stopped...

Page 30: ...r can take values from 1 to 79 Hz The parameter value can be changed both by the use of LEFT and RIGHT arrows and by entering a number 4 4 12 2 Amplitude The parameter can take values from 0 01 to 2 55 mA The parameter value can be changed both by the use of LEFT and RIGHT arrows and by entering a number 4 4 13 HW diagnostics Self test When this menu option is executed the Tester checks characteri...

Page 31: ...18 Indications are updated every 5 seconds Figure 18 The list of monitored parameters includes the battery voltage voltage of an external power supply measured after the protection circuit This voltage is 0 7 1 0V below the original charging current consumption current the battery capacity in percent of nominal 3 2 Ah Pressing ESC completes execution of this menu option 4 5 Testing a Geophone stri...

Page 32: ...umber is stored in the nonvolatile memory following which performance of the predefined sequence of tests starts While testing is in progress information on the current operation is displayed in the bottom line of the screen and the table is filled in The permissible ranges for values to be measured which have been calculated in conformity with the string configuration geophone type and measuremen...

Page 33: ...st and self diagnostics results to the PC hard disk drive Update of the Tester firmware All necessary programs are stored on the compact disk included in delivery The disk has the following structure Tester Documents Manual pdf Programs geophones exe SGFPUpdater SGFPUpdater exe QtCore4 dll QtGui4 dll Usbdrv vista_x64 vista_x86 win7_x64 win7_x86 xp_x86 sgfp_usb cat sgfp_usb inf sgfp_usb sys WdfCoIn...

Page 34: ...ecific PC only Further working with the same PC does not require re installation of the driver Connect the Tester to a PC using a standard USB cable Switch on the Tester Execute the Main menu Memory menu Upload files sequence The operating system will automatically find a new device and open the following dialogue box Select No not this time and click Next Select Install from a list or specific lo...

Page 35: ...Sib Geofiz Pribor Ltd Select Don t search and click Next Click Have Disk Click Browse and select the driver location 35 ...

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 36 ...

Page 37: ... folder as default You can relocate the said program to any area on the PC hard disk drive Files created by the running program will be written to the same folder where the program is located The above mentioned driver should be installed on this PC see 5 1 Connect the Tester to a PC using a standard USB cable Switch on the Tester and execute Main menu 3 Memory menu 4 Upload files The following me...

Page 38: ...each type if a relevant file is already exists the new data are added to its end otherwise a new file will be created on the disk The files have a text format accessible for any text editor The field header line is written at the beginning of each file after which data lines follow one line per each geophone string or one line per each self diagnostics entry Fields in a line are separated by the c...

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 39 ...

Page 40: ... find the desired file in the list of files and click Open in the appeared dialogue box select Initial data format with separators File format Windows ANSI and click Next in the appeared dialogue box select Separator character is semicolon click Next in the appeared dialogue box click In more detail select Separator of integer 40 ...

Page 41: ...e spreadsheet contains the following columns String Number of a geophone string Date test performance date Time test performance time Geophone geophone type in an string String a number of series connected geophones in a branch first number and a number of parallel branches second number Polar string polarity or for an string with mixed polarity Noise noise at the time of testing 41 ...

Page 42: ...ue X means a reject item Z string impedance Tmsr temperature at the time of testing The self diagnostics spreadsheet contains the following columns Date self diagnostics performance date Time self diagnostics performance time THD total harmonic distortion of the Tester measuring channel eTHD even harmonics oTHD odd harmonics result of comparison with the maximum permissible THD value 0 2 X means a...

Page 43: ...while holding the button switch on the Tester The Tester gives a long audible signal and the following message is displayed on the Tester screen USB operation then the Tester will execute instructions coming from the PC ATTENTION Prior to updating make sure that the battery is charged and in case of operation from the external power supply confirm its good working order and reliability Do not swit...

Page 44: ...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 Information on any updates and actions to be carried out after updating will be provided along with the update file 44 ...

Page 45: ... Х3 for connection of the remote temperature sensor and for connection of geophones geophone strings A geophone string should be connected to the contacts Х3 1 GPH and Х3 2 GPH To ensure leakage measurement the earth circuit should be connected to the contact Х3 5 EARTH see 4 4 3 3 Leakage When a shielded type cable is used its braiding can be connected to the contact Х3 4 GND The delivery set con...

Page 46: ...e 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 46 ...

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