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VE-1x/2x Series Velocity Sensor

Installation and Operation Manual

Company:

GeoSIG Ltd

Wiesenstrasse 39, 8952 Schlieren, Switzerland,
Tel: +41 44 810 21 50, Fax: +41 44 810 23 50, E-mail: [email protected]

Author:

Ralph Böniger

Checked:

Dr. Talhan Biro

Approved:

Johannes Grob

Distribution:

GeoSIG Ltd, Customer on request

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Содержание VE-1 Series

Страница 1: ...peration Manual Company GeoSIG Ltd Wiesenstrasse 39 8952 Schlieren Switzerland Tel 41 44 810 21 50 Fax 41 44 810 23 50 E mail info geosig com Author Ralph Böniger Checked Dr Talhan Biro Approved Johannes Grob Distribution GeoSIG Ltd Customer on request ...

Страница 2: ...pecification Disclaimer GeoSIG Ltd reserves the right to change the information contained in this document without notice While the information contained herein is assumed to be accurate GeoSIG Ltd assumes no responsibility for any errors or omissions Copyright Notice No part of this document may be reproduced without the prior written consent of GeoSIG Ltd The software described in this document ...

Страница 3: ...Verifying Installation 5 2 2 ELECTRICAL CONNECTION 5 2 2 1 Connector Pin Assignment 5 2 2 2 Connecting to a Recorder 7 2 2 3 Cable Configuration Specification and Length 7 3 OPERATION AND CONFIGURATION 8 3 1 AXIS ORIENTATION CONFIGURATION 8 3 2 SCALE FACTOR GAIN 8 3 3 SELF TEST 8 3 4 OPERATION CONFIRMATION 9 4 SPECIFICATIONS 9 5 MAINTENANCE 9 6 THEORY OF OPERATION 9 ...

Страница 4: ...VE velocity sensor and the cable assembly with testing the output signal and test pulse response of the sensor This may save time and trouble as well as give confidence that connections are done correctly The location of the sensor preferably as close as possible to the associated recorder should be as level and smooth as possible and the foundation should be of concrete rock or similar material w...

Страница 5: ... to change any axis direction orientation You might as well utilize your sensor by not fixing it to the foundation in the case of horizontal foundations but rather by placing it on the foundation taking measurements and relocating for temporary or mobile measurements However the velocity sensors must be fixed to the ground as soon as the vibrations measured are higher than 1 3 of gravitational acc...

Страница 6: ...y Z Signal high 6 Sens_Z_LO pink Z Signal low 7 S_Test blue Sensor Test Signal 8 AGND red Analog Ground 9 V_EXT black External Voltage 12VDC 10 AGND violet Analog Ground 11 S_MODE grey pink Sensor Mode Signal 12 AGND red blue Analog Ground Table 3 VE Sensor Cable Pin Assignment 12 Pin Name 12 Lead Cable Colour Description 1 Sens_X_HI white X Signal high 2 Sens_X_LO brown X Signal low 3 Sens_Y_HI g...

Страница 7: ... an appropriate cable The electrical parameters required for transmission of signals and power is discussed below The cable construction must be an overall shielded twisted pair type for optimal protection from electromagnetic interference EMI sources along the path of transmission Normally the shield can be a foil wrapper with a drain wire However if the cable is to be installed in close proximit...

Страница 8: ...ity sensor has to be placed in accordance with the intended and as purchased i e horizontal or vertical orientation Do not exchange the geophone axis orientation s without contacting GeoSIG Doing so will void the warranty of the instrument and might as well damage it completely The polarity of the signal can be changed basically by exchanging the connections to the geophone Also this action has to...

Страница 9: ... environment As such there is no routine or additional maintenance required For critical and long term applications we recommend the periodic use of the self test functionality see section 3 3 Self Test to verify the integrity of the system and installation In precision applications we recommend a calibration audit interval of 1 year GeoSIG can execute a calibration check which is executed by usin...

Страница 10: ...es Velocity Sensor Page 10 10 5 Voltage to current converter Optional GS 320CL 0 20 mA Original Characteristic of Geophone Additional Gain Improves the low frequency response between 1 4 5 Hz Final Signal 1 Hz response to 315 Hz v f f 4 5 Hz 1 Hz 4 5 Hz v f v 1 Hz ...

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