Contents
Trillium Compact User Guide
16889R5
2014-03-04
ix
Figures
Example of seismometer alignment using vertically scribed marks . . . . . . . . . 18
Example of seismometer alignment using the case-top guide. . . . . . . . . . . . . 19
Trillium Compact insulating cover features and dimensions . . . . . . . . . . . . . . . 22
Cut-away illustration of a Trillium Compact in the insulating cover . . . . . . . . . 24
Trillium Compact axis orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Bode plot for 120 s and 20 s models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Self-noise for 120 s models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Self-noise for 20 s models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Top view of models TC120-SV1 and TC20-SV1. . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Top view of models TC120-PH2 and TC20-PH2 . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Top view of models TC120-PH1 and TC20-PH1 . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Bottom view of models TC120-SV1 and TC20-SV1 . . . . . . . . . . . . . . . . . . . . . . . 63
Bottom view of models TC120-PH2, TC20-PH2, TC120-PH1, and TC20-PH1 . . . 64
Side view of models TC120-SV1 and TC20-SV1 . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Side view of models TC120-PH2 and TC20-PH2 . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Side view of models TC120-PH1 and TC20-PH1 . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Side view of models TC120-PH1 and TC20-PH1 with cable waterproof shroud 68
Side view of optional 70 mm spikes (posthole models only) . . . . . . . . . . . . . . . 69
Cut-away illustration of a packed carrying case . . . . . . . . . . . . . . . . . . . . . . . . 70
Preparing the installation surface on the Trillium Compact Posthole . . . . . . . . 72
Installing the cable waterproof shroud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Levelling cradle features and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Levelling cradle and spike kit assembly configurations . . . . . . . . . . . . . . . . . . . 75