SAMER EQUIPOS S.A.

GEOTECH INSTRUMENTS

Short-period Seismometer Model S-13 and GS-13

Sensors

Broadband Seismometer Model KS-2000 and KS-2000M
Broadband Borehole Seismometer Model KS-54000/KS-1
Short-period Seismometer Model S-13J and S-13J/3
Short-period Seismometer Model S-13 and GS-13
Accelerometer Models PA-23
Other Borehole Seismic Sensors (Models 20171 and GS-21)
Infrasound Sensors Chaparral Model 2 and Model 5

629 V/(m/sec) sensitivity
Mass lock
Period adjust
Simplified field maintenance
Excellent stability over long periods of time
More than 4000 units in operation

The Geotech Model S-13 is a high resolution, premium seismometer capable of meeting the noise and stability requirements of the most demanding seismic studies. It features adjustable natural frequency from 0.75 to 1.1 Hz (typical 1.0 Hz). The S-13 external mass lock, spring tension and operational adjustments are all fitted with seals that enable the instrument to be submerged to 100 feet without leakage. A major attribute of the S-13 is a mechanical design that lends itself to field repairs by unskilled persons using minimal spares. This quality, plus 30 years of outstanding performance in the field, qualify the S-13 to be the short-period seismometer standard by which others are compared.