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GÜRALP MODEL CMG-6TD SEISMOGRAPH


1 INTRODUCTION


Güralp Mod. CMG-6TD
Seismograph Güralp Mod. CMG-6TD.

2 SPECIFICATIONS


Specifications (subset of relevance here; source here):

Parameter Value
Sensitivity 2000 V/m/s
Nominal output sensitivity 2.0 × 10-9 m/s/count
Standard output format 24-bit
Noise-free resolution (NPR) at 20 samples/s > 132 dB r.m.s. (> 22 bits)
Standard frequency band 0.033 Hz (30 s) – 100 Hz
Operating temperature range –10 to +75 °C
Pressure jacket material Hard anodised aluminium
Sensor base plate Hard anodised aluminium
Base diameter 154 mm
Sensor height 242 mm (including handle)
Sensor weight 3.0 kg
Voltage requirements 10..24 V using 12 V DC/DC converter
Current at 12 V DC with GPS 165 mA1)
Nominal current at 12 V DC without GPS 75 mA2)

1) GPS must be used. We will use 75 mA in power estimates.
2) Ref. page 16 in GMG-6TD Operator's Guide, Issue D.

2.1 Instrument power input / data output port


Connector pin-out Cable connector details

Instrument connector.
19-pin plug MIL-DTL-26482, typical P/N: 02E-14-19P

Instrument output port, pin designation.
Mating cable connector [typical P/N: ***-14-19S]. Connector pin-out:
Ref. p. 8 in Amphenol "Miniature Cylindrical Connectors" datasheet.
Insert arrangement 14-19. Front face of pin insert.
Insert arrangement 14-19. Front face of pin insert.

Front face of pin insert illustrated.

Supplier: ELFA

Supplier: Farnell

2.2 Breakout box


Manufacturer Güralp
Model CMG-SCU-0062
Designation CMG-6TD Breakout Box
The CMG-6TD breakout box.
The CMG-6TD breakout box (Güralp model CMG-SCU-0062). From left to right: Power, GPS, Data.
Connector pin-out Cable connector details Notes
DATA PORT

6-pin plug MIL-DTL-26482, typical P/N: 02E-10-06P

Breakout box data port, pin designation.
Breakout box data port, pin designation.
Mating cable connector [typical P/N: ***-10-06S]:
Insert arrangement 10-6. Front face of pin insert.
Insert arrangement 10-6. Front face of pin insert.

Supplier: ELFA

Supplier: Farnell

Supplier: RS

  • Connector:
    • P/N: 450-354
    • MFR: Amphenol
    • MFR PN: 62GB-56T10-06SN
  • Strain relief cable clamp
    • P/N: 450-512
    • MFR: Amphenol
    • MFR PN: 62GB-585-10-06S
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GPS PORT

6-pin plug MIL-DTL-26482, typical P/N: 02E-10-06S

Breakout box data port, pin designation.
Mating cable connector have partnumbers like ***-10-06P Will use GPS of more "modern" type, intended for use with digitizer DM-24, which has a different pin-out:

A typical connector part-number is 02E-12-10P. Suitable mating connectors have partnumbers like ***-12-10S.

POWER PORT

10-pin plug MIL-DTL-26482, typical P/N: 02E-12-10P

Breakout box power port, pin designation.
Breakout box power port, pin designation.
Mating cable connector [typical P/N: ***-12-10S]:
Insert arrangement 12-10. Front face of pin insert.
Insert arrangement 12-10. Front face of pin insert.

Supplier: ELFA

Supplier: Farnell

Supplier: RS

  • Connector:
    • P/N: 450-376
    • MFR: Amphenol
    • MFR PN: 62GB-56T12-10SN
  • Strain relief cable clamp
    • P/N: 450-534
    • MFR: Amphenol
    • MFR PN: 62GB-585-12-10S
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Page last modified on November 21, 2016, at 10:51 AM
Electronics workshop
Department of Earth Science - University of Bergen
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