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Deployment Log Serial number: Date deployed Date recovered Location Comments...
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Included in Fortis accessory pack Setting the Gain The Fortis has user-selectable gain that can be switched remotely (via a Güralp Minimus digitiser) or locally via a rotary switch on the base of the instrument. Remove the cover screw using a large, flat- bladed screwdriver.
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Minimus) should appear in the main window. If the instrument does not appear, check your Ethernet connection and press the Scan locally button. To configure the gain of the Fortis, right-click on the Minimus in Discovery’s main window and select...
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Secure the instrument using a nut. Do not over-tighten! Connect a sensor cable between the Fortis and the digitiser, then power up the digitiser. If you are using a Minimus, you can now view real-time waveforms from the Fortis using Güralp Scream! or...
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Temporary Installations The Fortis is ideal for monitoring vibrations at field sites. Dig a shallow pit, make a smooth base, level the sensor and then cover with a box or bucket, bringing the cable out from under the bottom. The pit can be covered and back-filled with soil, sand, or polystyrene beads.
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