S100


S100

S100

The S100 is a three-component velocity equivalent output seismic sensor. The design is based on the force-balance principle, thus using three simple geophone elements with natural frequency 4.5Hz the frequency bandwidth is extended from 90Hz, down to 0.2Hz. The default cable length between the sensor body and the electronics box is approximately 20 meters but it can be extended up to100 meters. The geophones are housed in the same 50mm body producing a solid waterproof sensor suitable for installation into boreholes where the noise is much less than the surface. The geophones are orientated according the 3-axes principle. A dot mark, incised on the plastic cover of the case, indicates the direction of the North. Optionally, surface mount installation is available.

Technical Specifications

General

No. of Channels

3

Orientation

Vertical, North-South, East-West

Output resistance

500 ohms

Geophone case cable length

20 m (up to 100 m optional)

Connection case cable length

1-10 m

Power

+/- 11 to +/- 36Vdc, 75mW

Max output voltage

+/- 9Vdc bipolar, 18Vp-p

Features

Sensitivity

1,000V/m/sec

Electronic output noise

160nV/Sqrt(Hz)

Bandwith

0.2-100Hz

Physical

Size (electronic box)

160 x 100 mm

Size (geophone enclosure)

180 mm length, 50 mm diameter

Weight (electronic box)

900g

Weight (geophone case)

600g

Protection

Overvoltage protection

All pins are protected, all input signals are protected

Environment

Temperature range

-20 to +70 0C

Humidity

100%, IP67 enclosure