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Geokon 6165, Installation Instructions Manual

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Geokon 6165 Installation Instructions Manual Download Page 6

FIGURES 

 
F

IGURE 

1

 

-

 

M

ODEL 

6165

 

MEMS

 

T

ILT 

B

EAM

 ................................................................................................................. 1

 

F

IGURE 

2

 

-

 

B

RACKET 

H

ARDWARE

 ................................................................................................................................. 2

 

F

IGURE 

3

 

-

 

B

RACKETS 

A

TTACHED TO 

B

EAM

 ................................................................................................................. 3

 

F

IGURE 

4

 

-

 

M

OUNTING 

B

RACKET 

O

RIENTATION

 ........................................................................................................... 3

 

F

IGURE 

5

 

-

 

M

OUNTING 

H

ARDWARE

 ............................................................................................................................... 4

 

F

IGURE 

6

 

-

 

S

AMPLE 

M

ODEL 

6165

 

C

ALIBRATION 

R

EPORT

 .............................................................................................12

 

 
 

TABLES 

 
T

ABLE 

1

 

-

 

03-250V0

 

C

ABLE 

W

IRING

............................................................................................................................. 5

 

T

ABLE 

2

 

-

 

M

ODEL 

6165

 

MEMS

 

T

ILT 

B

EAM 

S

ENSOR 

S

PECIFICATIONS

 .........................................................................10

 

T

ABLE 

3

 

-

 

T

HERMISTOR 

R

ESISTANCE 

V

ERSUS 

T

EMPERATURE

 .....................................................................................11

 

 
 

EQUATIONS 

 
E

QUATION 

1

 

-

 

I

NCLINATION

 ........................................................................................................................................... 7

 

E

QUATION 

2

 

-

 

C

ALCULATED 

T

ILT

 .................................................................................................................................. 7

 

E

QUATION 

3

 

-

 

C

ALCULATED 

D

ISPLACEMENT

 ................................................................................................................ 7

 

E

QUATION 

4

 

-

 

T

EMPERATURE 

C

ORRECTION 

-

 

T

ILT

 ........................................................................................................ 8

 

E

QUATION 

5

 

-

 

T

EMPERATURE 

C

ORRECTION 

-

 

D

ISPLACEMENT

 ....................................................................................... 8

 

E

QUATION 

6

 

-

 

R

ESISTANCE TO 

T

EMPERATURE

 .............................................................................................................11

 

 
 

 

Summary of Contents for 6165

Page 1: ...s without the written consent of Geokon Inc The information contained herein is believed to be accurate and reliable However Geokon Inc assumes no responsibility for errors omissions or misinterpretation The information herein is subject to change without notification Copyright 2010 2018 by Geokon Inc Rev E 07 17 18 ...

Page 2: ......

Page 3: ...re are no warranties except as stated herein There are no other warranties expressed or implied including but not limited to the implied warranties of merchantability and of fitness for a particular purpose Geokon Inc is not responsible for any damages or losses caused to other equipment whether direct indirect incidental special or consequential which the purchaser may experience as a result of t...

Page 4: ......

Page 5: ...TURE 6 4 DATA REDUCTION 7 4 1 TILT CALCULATION 7 4 2 DISPLACEMENT CALCULATION 7 4 3 TEMPERATURE CORRECTION 8 4 4 ENVIRONMENTAL FACTORS 8 5 TROUBLESHOOTING 9 APPENDIX A SPECIFICATIONS 10 A 1 MODEL 6165 MEMS TILT BEAM 10 A 2 THERMISTOR SEE APPENDIX B ALSO 10 APPENDIX B THERMISTOR TEMPERATURE DERIVATION 11 APPENDIX C SAMPLE CALIBRATION REPORT 12 APPENDIX D PROGRAMMING THE MEMS TILT BEAM WITH CRBASIC ...

Page 6: ...65 CALIBRATION REPORT 12 TABLES TABLE 1 03 250V0 CABLE WIRING 5 TABLE 2 MODEL 6165 MEMS TILT BEAM SENSOR SPECIFICATIONS 10 TABLE 3 THERMISTOR RESISTANCE VERSUS TEMPERATURE 11 EQUATIONS EQUATION 1 INCLINATION 7 EQUATION 2 CALCULATED TILT 7 EQUATION 3 CALCULATED DISPLACEMENT 7 EQUATION 4 TEMPERATURE CORRECTION TILT 8 EQUATION 5 TEMPERATURE CORRECTION DISPLACEMENT 8 EQUATION 6 RESISTANCE TO TEMPERATU...

Page 7: ... very good long term stability are virtually immune to shock loading and have very low thermal coefficients They are readily adaptable to automation and remote monitoring for profiling in real time The included signal conditioning yields a sensor output of 3 volts at 10 degrees and is designed to drive long cables without output signal degradation The MEMS sensor is mounted inside a fiberglass alu...

Page 8: ...00 readout box can display the full output range of the MEMS sensor 3 At one end of the beam there is a label that shows the sign of the change in readout voltage when that end of the beam is tilted in the direction shown Tilts in a positive direction should yield increasing readings Tilts in a negative direction should yield decreasing readings The temperature indicated on the readout should be c...

Page 9: ...nting brackets on the mounting surface The marks should be as close as possible to being in line on a horizontal or vertical plane 4 Using a masonry drill or other suitable equipment drill two 12 mm 1 2 diameter holes approximately 40 mm 1 6 deep at the marked locations 5 Clean the holes thoroughly Blow them out with compressed air if possible 6 Insert the expansion anchors into the holes with the...

Page 10: ...which can occur if the MEMS sensor is rotated axially too far away from a true horizontal or vertical position The spherical washers allow the beam to be rotated in respect to the anchor bolt thus adjustments can be made to avoid this type of error For vertical tilt beams the axis of tilt can be either in the plane of the wall or perpendicular to the wall The direction is selectable by slackening ...

Page 11: ...ual 03 250V0 Cable Connector Pin Designation Function Red A 12VDC Red s Black B Ground White C A Out Diff White s Black D A Out Diff Bare E Shield Green J Thermistor Green s Black K Thermistor Table 1 03 250V0 Cable Wiring 3 3 RB 500 Readout Box The RB 500 readout box is designed to display readings for manually transcribing into a field book it has no storage capabilities This method is useful fo...

Page 12: ...rces See Section 4 3 The RB 500 will not read temperatures a separate digital ohmmeter is required A Geokon GK 404 or GK 405 readout box can also be used they have the ability to read the thermistor and display the temperature in degrees C To read temperatures using an ohmmeter 1 Connect an ohmmeter to the green and green s black conductors of the tilt beam Since the resistance changes with temper...

Page 13: ...ppled calibration report A typical 6165 calibration report is shown in Appendix C Note that for measurements of tilt i e changes of inclination where R0 is the initial reading and R1 is a subsequent reading the small zero reading Rzero at zero inclination cancels out so that Calculated Tilt T Gtilt R1 R0 degrees Equation 2 Calculated Tilt 4 2 Displacement Calculation To calculate the vertical or h...

Page 14: ...r can be calculated by taking readings of tilt and temperature over a short period of time and correlating the two Alternatively efforts can be made to obtain readings when the instrument and structure are at thermal equilibrium The best time for this tends to be in the late evening or early morning hours For best results the Tilt Beam should be shielded from direct sunlight 4 4 Environmental Fact...

Page 15: ...ck Connect an ohmmeter to the green and green s black conductors of the tilt beam Since the resistance changes with temperature are large the effect of cable resistance is usually insignificant For long cables a correction can be applied equal to approximately 14 7 Ω per one thousand feet 48 5Ω per km Multiply this factor by two to account for both directions If the resistance reads very high or i...

Page 16: ...12V nom 30mA Beam Dimensions 1 5 38 mm square cross section Length Variable Weight 1 5 lb 0 7 kg Materials Aluminum Electrical Cable Three twisted pair Six conductor 24 AWG for uniaxial Foil shield PVC jacket nominal OD 6 3 mm Table 2 Model 6165 MEMS Tilt Beam Sensor Specifications Notes 1 Depends on readout equipment For best results requires a 4 5 digit digital voltmeter 2 Voltages in excess of ...

Page 17: ...2 83 107 9 123 77 66K 36 8006 4 1363 44 331 5 84 105 2 124 72 81K 35 7618 5 1310 45 321 2 85 102 5 125 68 30K 34 7252 6 1260 46 311 3 86 99 9 126 64 09K 33 6905 7 1212 47 301 7 87 97 3 127 60 17K 32 6576 8 1167 48 292 4 88 94 9 128 56 51K 31 6265 9 1123 49 283 5 89 92 5 129 53 10K 30 5971 10 1081 50 274 9 90 90 2 130 49 91K 29 5692 11 1040 51 266 6 91 87 9 131 46 94K 28 5427 12 1002 52 258 6 92 85...

Page 18: ...12 APPENDIX C SAMPLE CALIBRATION REPORT Figure 6 Sample Model 6165 Calibration Report ...

Page 19: ... this example D 2 Sample Program Declare Public Variables for Reading MEMS Sensor Public MEMS_1 Public MEMS_2 Public MEMS_3 Public MEMS_Output Output of the MEMS Sensor Store MEMS Output every 2 minutes DataTable MEMS_EXAMPLE 1 1 Sample 1 MEMS_Output IEEE4 EndTable BeginProg 2 min scan interval Scan 2 min 0 0 Read MEMS Sensor on Differential Channel 1 and average 100x Readings Delay 0 100 mSec MEM...

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