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SatisGeo KT- 6, Instructions Manual, Page: 1 / 29

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Field Rock Magnetic Susceptibility Meter 

 
 
 
 
 
 
 

KAPPAMETER 

 
 

KT- 6 

 
 
 
 
 
 

Instruction Manual 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

                                            p o r t a b l e   g e o p h y s i c a l   i n s t r u m e n t s

 

 

tel/fax: +420 541 634 414                                                 Je

č

ná 29a  

e-mail: [email protected]                                                621 00 Brno 
www.satisgeo.com                                                            Czech Republic  
 

Summary of Contents for KT- 6

Page 1: ...c Susceptibility Meter KAPPAMETER KT 6 Instruction Manual p o r t a b l e g e o p h y s i c a l i n s t r u m e n t s tel fax 420 541 634 414 Ječná 29a e mail info satisgeo com 621 00 Brno www satisgeo com Czech Republic ...

Page 2: ...1 Battery Instalation 8 3 2 Power ON OFF 9 3 3 Measurement 10 3 4 Data Memory 13 3 5 Scan Mode 16 3 6 Low Battery Voltage Indication 18 3 7 Date and Time Set 18 3 8 Miscellaneous 19 4 MEASURING METHODS 20 4 1 Measured Value and Corrections 20 4 1 1 True and Apparent Susceptibility 20 4 1 2 Effect of the Gap between the Active Face of the Instrument and the Rock Surface 21 ...

Page 3: ...sions 22 4 1 4 Measurement on a Cylindrical Surface 23 4 2 Instructions for Measurement 24 4 2 1 Measurement on Outcrops 24 4 2 2 Piece Specimen Measurement 25 4 2 3 Drill Core Measurement 25 5 ERROR MESSAGES 26 6 MAINTENANCE 27 7 WARRANTY 28 8 CONNECTORS WIRING 29 ...

Page 4: ...specially advantageous for selecting of suitable specimens for further precise laboratory studies of magnetic properties 1 2 Specifications Sensitivity 1x10 5 SI units Measuring ranges from 999 to 9999 x 10 3 SI units with automatically switched accuracy 9 99 99 9 999 Operating frequency 10 kHz Display 4 digit LCD 13 mm high Data memory up to 70 measurements Controls set switch two touch switches ...

Page 5: ...e Battery 9 V alkaline IEC standard type 6LF22 Ambient operating temperature from 10O C to 55O C Dimensions diameter x length 65 x 187 mm Weight 0 35 kg including battery Accessories leather case instruction manual RS 232C cable floppy disk with a communication program Note The instrument is delivered without the battery ...

Page 6: ...Fig 1 Principal elements of KT 6 6 ...

Page 7: ...in microcomputer and then displayed For the details see section 4 Measuring methods 2 2 Design The use of a microprocessor and LSI circuits of very low power consumption made it possible to decrease the size of the instrument to such an extent that the KT 6 could be designed for one hand operation A robust leather case which can be either carried on a strap over the shoulder or worn on a waist bel...

Page 8: ... inserted and the battery put in Caution The battery compartment is not waterproof If the interior gets wet the compartment must be dried to prevent the contacts from corroding If long term storage of the KT 6 is anticipated remove the battery from the instrument to prevent damage from electrolytic leakage After long storage always inspect the battery If a standard dry battery is used the operatio...

Page 9: ... shows the stand by status Fig 2 or Fig 3 while the switch is held down This is also a test of the display The character b left of the most significant digit indicates low battery voltage For further information see section 3 6 When the switch is released the display shows the current time or date respectively 9 ...

Page 10: ... the instrument is ready to measure The measurement is carried out in two steps By pressing the switch C M on the side of the instrument see Fig 1 for the first time the instrument is cleared zeroed by pressing this switch for the second time the susceptibility of the specimen is measured To be cleared properly the instrument must be removed from the measured rock and from other magnetic or conduc...

Page 11: ...s is audibly indicated In this case clear must be repeated During the measuring interval the active face of the KT 6 must be pressed lightly against the surface of the rock measured When the C M switch is pressed for the second time the measuring cycle is started It takes approx 0 3 s At the end of this cycle the true susceptibility of the rock in 10 3 SI units is displayed The formats of the susc...

Page 12: ...will display the error condition Fig 9 A negative value of the susceptibility measured in the free space lower than 0 01 x 10 3 SI units may suggest that the instrument does not work properly If after completion of the first measurement the C M switch is pressed again the instrument will be cleared the display shows 12 ...

Page 13: ...n be stored in the data memory The displayed value is automatically stored in the memory if the C M switch is pressed again i e during the next clearing period If for some reason it is not desirable to store the data just displayed the RCL switch must be pressed before pressing the C M switch When the 70th measurement is stored in the memory the display shows Fig 11 13 ...

Page 14: ...re stored in the data memory i e FIFO first in first out The stored data can be recalled and displayed by pressing the RCL switch at any time First the serial number of the measurement appears for about 0 5 s e g Fig 13 followed by the respective susceptibility value Measurements are displayed successively in the order reverse to the measurement sequence In this way all the stored data can be surv...

Page 15: ...n the KT 6 is switched off but they are lost when the battery is low or being replaced The contents of the data memory can be sent to a computer via the RS 232C interface using the program Kmdata exe The program is supplied with the instrument To install the program simply copy it to a desired directory on a hard disk It is not recommended to run the program from the diskette The program Kmdata ex...

Page 16: ...played printed or saved in SI units The numbers are thousand times smaller than those displayed on the KT 6 where the 10 3 SI units are used 3 5 Scan Mode The scan mode enables to get fast information on the distribution of susceptibility over a particular rock object In this mode the measurements are repeated automatically in half a second intervals Each measurement is displayed but not stored in...

Page 17: ...e eliminated because the free space frequency of the oscillator is measured in the clearing cycle prior to each measurement In the scan mode only one measurement of the free space frequency is used for calculating all the following susceptibility values The temperature drift causes a gradual decrease of the accuracy of results It is expedient to interrupt work in this mode from time to time and to...

Page 18: ...T 6 will operate properly for several more hours Nevertheless it is recommended to replace the battery soon 3 7 Date and Time Set A setting mode is entered by pressing the SET switch see Fig 1 The blinking value hours minutes year month day can be modified by pressing C M touch switch the next item is achieved by pressing the RCL touch switch Another pressing the set switch ends the setting mode a...

Page 19: ...cial attention should be paid to the condition of the battery contacts An unreliable contact can depreciate proper operation of the instrument Both touch switches are very sensible so that only moderate pressure is needed for switching It is indicated by the buzzer or by change in the display ...

Page 20: ...instrument KT 6 is calibrated for the idealized case in which the pick up coil is attached to an absolutely smooth plane confining a half space filled with magnetically homogeneous and isotropic medium Then the displayed value of the susceptibility is the true value The true value of susceptibility is computed in the microprocessor from the measured so called apparent susceptibility ...

Page 21: ...e surface of the measured rock the value indicated is lower than the true susceptibility In Fig 16 the relative decrease of the displayed susceptibility value versus the distance between the active face and the rock surface is plotted Fig 16 The surface layer of the rock down to the depth of 20 mm contributes about 90 to the displayed value 21 ...

Page 22: ...tions for unevenness up to 10 mm The corrected value is obtained by multiplying the measured value be the respective correction factor Table 1 Surface unevenness mm Correction factor 1 1 07 2 1 15 3 1 23 4 1 32 5 1 41 6 1 51 7 1 61 8 1 72 9 1 84 10 1 96 Fig 16 also indicates that the half space can be substituted with sufficient accuracy by a plate 50 mm thick As for the surface plane area infinit...

Page 23: ...suring drill cores it is recommended to attach the pick up coil to the side rather then to the head of the core since the core side is an almost perfectly smooth cylindrical surface while the head is uneven and usually of small diameter The values measured on a cylindrical surface are systematically lower than those measured at the boundary of a smooth half space and therefore they must be correct...

Page 24: ...er the degree of weathering of the surface which affects the results considerably The weathering effect can hardly be evaluated therefore measuring on unweathered though less smooth surface is preferred For each measurement it is necessary to estimate the surface unevenness and to introduce the respective corrections see Table 1 It is recommended not to measure on surfaces with peak to pit differe...

Page 25: ...asured value see Table 2 4 2 3 Drill Core Measurement It is preferable to measure on the core side on the cylindrical surface rather than on the core head which is usually uneven and small The values measured are however systematically lower by as much as 30 it is therefore essential to correct them see Table 3 The measurement on the core side may be sufficiently accurate since the surface is unwe...

Page 26: ...s may be displayed E 00 Overflow of the display range E 10 Data memory failure E 11 Data format failure E 51 Invalid PC command E 55 Communication error RS 232C E 81 The instrument cannot be switched off E 10 E11 and E 81 are serious failures It is necessary to ship the instrument for repair to the producer ...

Page 27: ...strongly recommends to all users to make no encroachments upon the KT 6 electronics If any operation described in this manual cannot be executed check the battery the cleanness and quality of the contacts that connect the battery with the electronics If both the battery and the contacts are in a good condition it is necessary to ship the instrument for repair to the producer see section 7 Caution ...

Page 28: ...e All requests for repairs and replacement parts should be directed to the SatisGeo s r o Jecna 29a 621 00 Brno Czech Republic info satisgeo com This will assure you the fastest possible service Please include the instrument Type Number and Serial Number with all request for parts or service Specifications and price change privileges reserved Adding information relating to warranty is given in the...

Page 29: ...ector on interface cable for PC connection C9 PIN NO C25 female PIN NO EXPLANATION KT 6 connector jack PIN NO 5 1 7 GND case 2 3 Transmitted data top 3 2 Received data middle 4 6 4 5 two pins connected 7 8 6 20 two pins connected ...

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