Answer: Yes it possible to use a USB/Ethernet with Geode / SCS software. We have a “vetted” manufacturer we are now shipping with Geode orders.

PN 123-00287 (ADAPTOR, USB-ETH, FOR PCS W/O 10MBPS ETH OR RJ45 PORT, CONNECT BEFORE TURNING ON PC) $60 (check for current price)


Some vetted models that are available on the internet: 

Cisco USB300M.

Other vetted models:
HIRO H50223 USB 2.0
*TP-LINK model UE300 (USB 3.0)
Supereal SR9600 (USB 2.0)
ASIX AX88772a (USB 2.0)
* the TP-Link was the preferred choice

The important thing to consider is that the device must have the driver installed and be plugged into a 2.0 or 3.0 USB port when the PC is started.

To verify that the external trigger is being received, you can momentarily short pins A and B while the Geode and SCS software are running on your PC. (A paperclip is commonly used for this purpose.) Each time the pins are shorted, the unit should successfully trigger.

For reference, the part number for the trigger connector/cable assembly is:

PN 840-00556-01 — ASSY, CABLE, TRIGGER INPUT, GEODE

In general, mini-Sosie surveying is useful in noisy, urban environments, particularly in close proximity to roads where near-field noise suppression can be used effectively.

The Geode Seismograph is capable of expanding to 1000+ channels.

In the past our engineers have tested trigger lines up to 1 Km without any noted latency issues. That was done with the standard RJ-58 Coax cable.

It is possible that it may work at distances longer, but we would recommend testing it above ground before field deployment.

We do have a Trigger Noise Filter, connected in-line with (long) trigger cables to suppress false triggering. Contact us for more information.

Users do have the option to run geophone tests using the standard equipped Geode Seismograph that can run line continuity and geophone tests. This can be accessed from the system->tests->Run Geophone/Line tests.

Oscillator boards are typically installed during purchase. Fewer than 5% of the customers purchase that option, that level of QC is typically not necessary. For more information please read the test box manual. We no longer supply the Test Box to external customers.

A description of how to run the tests if you use the test box or if you use the internal oscillators is described in Section 2.11.3.1 RUN INSTRUMENT TESTS (OPTIONAL ADD-ON FEATURE) of the manual. The latest standard Geode Operations Manual has more information.

You can run the tests outlined in the Geode Operations Manual to detect the bad geophones and spread cables.

If you require a calibration certificate for your Geode please consult our Support Note.

All Geophysical surveys require interpretation given limited understanding of the site, data from equipment, and ground truthing. Any interpretation provided is the best that can be provided according to the geophysical expertise and experience of the geophysicist.

Does this device store any data (from the user and/or by the device itself) either temporarily (Cache) or permanently?

What data does the device store and/or obtain, if any? (GPS locations, user data entry )

Does the device have any firmware or other identifying information that is sensitive to public release?

Answers

The only permanent memory we have in the Geode is used to store firmware required for the operation of the Geode. The firmware is provided by Geometrics and contains no information from the user. We do have cache memory onboard the Geode for storing data in a circular buffer prior to sending it to the acquisition computer, but that is cleared every time the power is turned off. The cache memory is located on the acquisition boards of the Geode and are not removable. The Geode's sole purpose is to digitize and record data from analog inputs which are almost always connected to geophones which are sensitive to ground motion. The recorded data is sent to the PC and not retained on the Geode. The Geode can't be operated in a standalone mode and requires the acquisition controller to function.

The Geode itself does not have any ability to record any positional information or customer entered data. That is all done on the PC recording software on the acquisition controller.]]> Hardware Gretchen Schmauder https://www.geometrics.com/community/geode-hardware/geode-es-3000-seismograph-data-storage-questions/ https://www.geometrics.com/community/geode-hardware/does-the-geode-seismograph-require-scheduled-calibration-services/ Wed, 30 Aug 2023 19:40:56 +0000 Our seismographs do not require periodic calibrations in that they do not have any adjustable parameters. With that being said, we do recommend that they are checked for performance and routine maintenance to include intensive analog tests of the acquisition circuitry. A reasonable interval would be around every 5 years for normal usage.

During these tests we verify that the seismograph analog performance meets our specifications by using a seismic test system. This system incorporates a standard reference oscillator and precision resistor networks to inject known signals into the seismograph. We then use algorithms in our software to calculate the response and performance of the analog circuits.

This "performance test" is run whenever we receive an instrument in for repair or evaluation. Some of our customers do prefer to have the performance of their instrument checked on a periodic basis especially if they are required by their clients, for example the NRC. We offer these nontraceable recertification’s to include a calibration certificate and test results for a fee of $300.

If you would like us to perform performance verifications and a system evaluation please reserve an RMA and obtain shipping instructions.