SIGMA Digital

SIGMA Digital

Product Overview

In combining a standard three component SIGMA accelerometer with our well proven 24-bit TAU digitizer, SIGMA Digital, also referred to as 'Digital SIGMA' (Model Number: SIGMA-TSD4G-ACC), is an accelerometer with a fully digital output. This two-in-one package eliminates the need for an external digitizer, thereby saving valuable deployment space. It also makes installation extremely easy, as there is no need to handle bulky seismometer cables. In conjunction with our OMEGA control and data acquisition software, this accelerometer can be fully remotely controlled and operated. Three available user interfaces (10/100 Base-Ethernet, Serial RS232 and USB. Optional PoE available) makes communication with this instrument easy and reliable.

For additional information and datasheets on Digital SIGMA (SIGMA-TSD4G-ACC Models) please contact GaiaCode directly.

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SIGMA Digital

Key Features

Instrument Design

- Classical orthogonal sensor topology with sensor axes pointing in the three cardinal directions

- Fine pitched adjustable feet manufactured from brass

- All sensor components are made of non-magnetic materials, minimizing noise induced by outside magnetic fields.

- Single slotted base fixing point

Instrument Characteristics

- Flat frequency response from DC to 400 Hz

- Four remotely configurable saturation levels between ± 4g and ± 0.5g by default. Additional saturation levels available at request.

- Other options down to ± 0.05g available

- Dynamic range at ± 4g > 167 dB at 1 Hz, ± 2g > 170 dB at 1 Hz

- Operational tilt range within ± 10.0 degree

- Cross axis rejection >-60 dB (0.001 g/g)

- Operating temperature range: -20 to 75 °C

Enclosure

- Rugged housing made from hard anodized aluminium

- Weight varies depending on connector: D-Type  2.45 kg, MIL Spec  2.75 kg

- Dimensions: Outer Diameter 14.0 cm, Height: D-type 16.5 cm or MIL Spec 18.0 cm

- Waterproof as per IP68 standard

 Power and Electronics

- Power Consumption: 2.7 W at 12 V

- Power operating range from 9 to 36 V

- The sensor's electronic circuitry is galvanically isolated, protected against polarity switch and voltage transients

Digitizer

 - 24-bit digital output. TAU Specification.

To obtain a detailed data sheet for this seismometer, please contact GaiaCode Headquarters

 Disclaimer: The product specifications and the stated data are subject to change without prior notice.

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