3 build options, 4 ports and connections, 1 ports – Guralp Systems CMG-6TC User Manual
Page 5
Equipment Overview
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Lightweight (1.2kg) and waterproof to 1 metre submersion
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No mass clamping required – plug in and go
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High sensitivity and dynamic range (>135 dB)
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Orthogonal instrument with high cross-axis rejection (>65 dB)
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The sensor response is completely flat across the entire
passband. Its high-gain feedback loop eliminates mechanical
non-linearity (the overall measured linearity exceeds 95 dB) and
minimizes resonances in the spring system.
•
Low-frequency vibration modes are carefully avoided in the
design. The lowest spurious vibration mode of the 6TC is a barely
measurable resonance at 440Hz.
Refer to Appendix B on page 14 for full specifications.
2.3
Build options
The CMG-6TC is supplied in two standard build versions:
Selectable 1, 10, 30 and 60 second low frequency corner, flat to
100Hz
Selectable 1, 30, 60, 120 second low frequency corner, flat to 100Hz
A 50Hz option is available on request.
The responses for each build version are user-configurable. See
section 4 on page 8 for instructions for configuring the responses.
2.4
Ports and Connections
Note: Refer to Appendix A on page 13 for information on
connector pin-outs.
2.4.1 Ports
A single 26-pin connector provides power to the instrument and
supplies analogue data from the sensors. A TTL-level serial interface
is also exposed on the same connector.
The supplied cable has a 26-pin instrument connector at one end and
either a 26 way connector or free pigtails at the other (depending on
customer requirements).
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Issue C - February 2015