SmartSolo Node Seismometers

The three-channel nodes have a theoretical battery capacity of ~~30 days, whereas the single-channel type has a capacity of ~~50 days. The programming, operation and downloading procedures for all types of SmartSolo nodes are also similar.

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**Freight update, 2026: **Freight options for lithium-ion batteries are changing in 2025/2026 to comply with updated transport safety regulations. This will impact supply of IGU 16 (<100Wh) and BD3C (168Wh) nodes. Advice will be sought from freighters on a case-by-case basis while they implement new guidelines.

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= **Programming Defaults** =

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The nodes must be programmed in the SoloLite software prior to use. The screenshots below show our recommended parameters for the 5 Hz (16HR-3C) and 5 second (BDC3-5) nodes.

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[[IGU-16 3C programming screen set at 250 Hz. Ensure that the circled areas are set!>>image:5Hz_node_programming.labels.png||alt="IGU-16 3C programming screen"]]

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[[BD3C-5 programming screen set at 250 hz. Ensure that the circled areas are set!>>image:5S_node_programming.labels.png||alt="BD3C-5 programming screen"]]

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FIFO (first in, first out) data mode is safest as this will overwrite old data in case you forgot to clear the storage. At <= 250 hz you can fit 4++ months of data on these, shouldn't be an issue.

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Note that the samplerate is instead given in sample spacing, in milliseconds. 4 ms = 250 Hz, 1 ms = 1000 Hz, 10 ms = 100 Hz, ad nauseam.

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Be sure to set the channel types to Seismic and the gain appropriately. For active source (i.e. explosions) you can leave the gain at 0, but for passive experiments some gain is purported to be helpful (although we have found this to be somewhat negligible). We can confirm that 6db for the broadband nodes and 24db for the short period works well.

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If you want recording to begin immediately, ensure that begin date is in the past by at least a few days. If you prefer to have a timed turn-on, then set the times as needed. **Be warned that recording will not begin until a GPS lock is achieved, so if you set it to a future turn-on but bury it too deeply, it may not record!**

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In newer versions of the software there is a "power consumption" setting.. we are no sure what this does exactly, but the manual says it gives life a "boost" at the expense of about 3 db of resolution. Until this can be quantified a bit better it is not recommended.

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Storage type can be DLD (proprietary) or Miniseed. We assume the software works best with their proprietary format so prefer not to risk any issues. You can export to miniseed later.

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GPS is best set to cycle mode (e.g. once per hour) instead of constant "always on". The clock drift on these are almost nil even if there is no sync at all, so it's best to conserve power.

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Bluetooth (BD3C-5 only) should be turned OFF to conserve power.

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We recommend that the 16HR-3C be set to a gain of 24db for passive experiments and no higher than 250 Hz sampling rate unless there is an explicit reason to do so. The BD3C-5 should be set to a gain of 6db (which is the maximum allowed) for passive experiments (or 0 db if active).

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**Note that any applied instrument gain must be removed when exporting (e.g. to miniseed) after your deploy, **otherwise amplitudes will be a factor of either 15.84893192 (24db) or 2 (6db) too high!

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= **Fieldwork Preparation** =

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**INVEST IN FAST EXTERNAL HARD DRIVES – DO NOT LET THIS BE THE LIMITATION OF DATA HARVESTING**

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**Assume ~~1 Tb of storage for both raw and exported data per 50 nodes @ 250 Hz & 30 days. One node recording at 250 Hz for 30 days tends to create about 3 Gb of miniseed data.**

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**We have had good experience with the 4Tb Samsung T7 Shield drives.**

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== Magnets ==

If you are short on magnets, you may find it easier and a lot cheaper to buy magnets in Australia. AMF Magnetics is a good retailer, and [[this item>>https://magnet.com.au/collections/shop?q=23012B]] seems to work well. It is also advantageous to use smaller magnets and store/carry them individually in your back pocket (as well as stick them to various places in your field vehicle, etc).

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== Animal-Proofing ==

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We have experienced interference from animals (foxes, dogs, goats) digging up and carrying nodes off for tens or hundreds of metres. It is helpful to minimise human and food smells (particularly on the rope handles) when working in areas where this is a risk. Or, wipe down affected nodes with 50-80% methylated spirits if extensive handling can not be avoided.

= **Installation** =

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**Field logs are a critical component of fieldwork and this is especially the case for large N nodal deploys. Take notes!**

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== 1. Logbook documentation ==

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**Essential Details** for field logs:

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* Station name

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* Latitude, longitude, elevation

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* Names of team members present

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* Date and both local & UTC time of installation/removal

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* Serial number (SN) of the TOP HALF of the sensor (if a BD3C-5, there is only one serial number)

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* Detailed notes on the site conditions and setup, anything else that will be helpful to find it again ("by the fence", "south of rock", etc)

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[[HERE>>http://auspass.edu.au/field/NODES_blank_fieldlog.pdf]] is an example logsheet that works well for nodes, feel free to print and use!

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== 2. Node Placement ==

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**Site Analysis**:

* **Take compass measurements away from the sensor as it will affect your measurement.**

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* Take photographs from various angles to document the site setup thoroughly.

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* Include a detailed site description in your notes

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== 3. GPS Considerations ==

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The GPS antenna is at the top and center of the unit, and will (usually) only receive signal with a clear sky view directly above. The signal is able to penetrate plastic and terracotta planters and a thin layer of soil, but may struggle if the soil layer is too thick. **These nodes will not start recording without attaining a GPS lock** and repeated attempts will excessively drain the battery.

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== 4. Visibility and Location Marking ==

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**Flag Placement**: Position a flag, preferably in a bright color (avoid green or yellow), near the instrument to aid in its future location.

**GPS Marking**:

* Use a GPS device to mark the instrument's exact location.

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* Record this location in both your paper notes and the GPS device.

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== (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)5. Charge Time, Pre-Deployment & Post-Deployment(%%) ==

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* **Charging Duration**: Both types of nodes take approximately 6-8 hours to fully charge from a flat state.

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* **Pre-Deployment Charging**:

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** Although the nodes hold their charge well, it's beneficial to give them a "top up" charge before deployment.

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* **Operational Duration**:

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** When recording at 250 Hz, with GPS on and Bluetooth disabled, the instruments are expected to last about 30 days per charge cycle. If they are set to run only overnight, this can be extended to 60 days.

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* **Post-Retrieval Charging**:

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** After retrieval, charge the instruments to about 50-60% (indicated by ORANGE LED) unless they are to be immediately re-deployed or transported.

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* **State of Charge (SoC) for Storage**:

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** Maintain a battery charge level of around 50-60% (i.e., ORANGE) for storage.

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** This charge level is recommended to prevent battery damage, and should be checked every six months.

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** Nodes should //__not be stored at full-charge (GREEN), or 0-charge (RED).__//

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** Storage at 0-charge damages lithium batteries**.**

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* **SoC for Transport:**

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** Charge levels for transport will be advised by the freighter. The required SoC will depend on volume and transport method (air, land, sea).

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== 6. Data Sharing and Metadata Creation ==

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**GPS Data**:

* Ensure you have __carefully documented__ precise lat/lon locations for each station.

**Photo Sharing**:

* It is strongly encouraged to take pictures of each site and upload these to a shared platform (OneDrive, Dropbox, etc.).

**Metadata File**:

* Create and organize metadata according to the [[ANU metadata standard txt file>>attach:example_metadata.txt]]. This is going to be particularly important if you are reusing nodes at different sites... not documenting the serial numbers (of the **top half** of the node) and the times they were deployed can lead to station mix-ups.

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== 7. Additional Best Practices ==

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* **Training and Familiarisation**: Make sure all team members are adequately trained in using the GPS devices, compass use, and other equipment to ensure consistent and accurate data collection.

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= **Seismic Station Demobilization and Documentation** =

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**Preparation for Demobilization**:

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* Before starting the demobilization process, ensure you have a compass, tape, marker, pen, masking tape, clipboard, logbook, and compass ready in your tote bag.

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**Locating the instrument**:

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* Use the downloaded GPS file to accurately locate the node for demobilization.

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* Import this KMZ file onto your phone for easy reference and location tracking.

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* Utilize Google Maps or Google Earth to create a KMZ file of the station’s location.

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**Labeling Instruments for Demobilization**:

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* Write the station name and the instrument’s serial number on a masking tape label to apply to the top of the node.

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* Add markers 'D' (for download), 'C' (for charge), and ‘R’ (for removal) next to checkboxes on the label.

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* Affix this label to the top of the instrument to avoid confusion during the charging and downloading data.

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**Photographing the Setup Node**:

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* Take a photo of the entire setup node with the __//label//__ and __//compass visible//__.

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* This photo serves as a final record of the instrument’s condition and orientation at the time of removal.

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**Logging Demobilization Details**:

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* Use the field logbook to note the time of demobilization, serial numbers, and station name.

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* Record any observations or issues related to the instrument’s orientation, level, or any other relevant factors.

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**Final Checks and Equipment Removal**:

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* Before physically removing the instrument, double-check that all necessary data has been downloaded and all photos and notes have been taken.

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* Carefully dismantle and pack the equipment, ensuring that all components are accounted for and securely stored for transport.

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[[image:1706153556166-231.jpeg||data-xwiki-image-style-alignment="center" height="345" width="460"]]

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= **Charging Procedure for Seismic Nodes** =

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== 1. Preparation for Charging: ==

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* Before charging, ensure each node is clean. This involves removing any dirt or debris to maintain the integrity of the equipment and ensure effective charging.

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== 2. Disassembling the Node: ==

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* For the IGU-16HR, remove the battery section (bottom half) from the sensor by unscrewing the spike section counter-clockwise.

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== 3. Setting Nodes in the Charging Box: ==

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* Connect to a safe indoor power supply, and turn on (red rocker switch).

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* Charging will begin automatically when nodes are inserted in the charging rack.

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* Place IGU-16HR battery sections upside-down in the rack, oriented with the terminal connectors.

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== 4. Monitoring the Charging Process: ==

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* Lights adjacent to the batteries will illuminate, indicating that charging is underway.

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* Observe the transition of the lights from steady RED to ORANGE, then GREEN, and finally to FLASHING GREEN. A flashing green light indicates the batteries are fully charged.

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== 5. Updating Charge Status: ==

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* During the charging period, take this opportunity to update the status of each unit. Check the //"C"// box on your temporary labels to indicate that the unit has been successfully charged.

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* This step is crucial for tracking the charging status of multiple units, especially when handling a large number of nodes.

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[[IGU 16-HRcharger (left) and harvester (right)>>image:1705195933422-337.png||data-xwiki-image-style-alignment="center" height="299" width="530"]]

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= **Downloading and Converting Seismic Data to MiniSeed Format** =

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SmartSolo provides the following powerpoint for SmartSolo node programming and operation. Note that ANSIR only uses a portion of their process for our own uses: [[https:~~/~~/nappe.wustl.edu/smartsolo/files/smartsolo_online_training.pdf>>url:https://nappe.wustl.edu/smartsolo/files/smartsolo_online_training.pdf]]

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== Connection tips: ==

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Connecting SmartSolo nodes to their harvesters and having SoloLite recognise them can be a bit tricky, here are some tricks to help register and program them easier:

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* Place the node on the harvester gently, then firmly press it down onto the pins.

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* Place all nodes onto the harvester before trying any troubleshooting, as they may not show up while the SoloLite software is running. Once all are connected, try restarting the software for them to be recognised.

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* If a node is refusing to connect, try it with another slot. It is easiest if you place all 16 nodes on the harvester, and swap any nodes that refuse to connect with each other.

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* Nodes will likely not show up in the order that they should, though this is not an issue. E.g, a node in slot 6 on the harvester may show up in port 13 in the SoloLite software. Annoying, but it doesn't matter so long as you keep track of what's been harvested!

== Node Registration and Software Setup ==

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**Registering Nodes in the System**:

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* To begin, register the nodes in the system so the software can recognize them.

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* Navigate to the installation folder of “SmartSoloApps SoloLite”.

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* Right-click on deviceconfig.exe and choose “run as an administrator”. Save the file to the “deviceconfig” directory (refer to the snapshot below).

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* To avoid double registration, replace the file each time you register a new node.

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**Creating a New Project in SoloLite**:

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* Open the “SoloLite” software.

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* Go to “File” and create a new project. Don't worry about finding the exact 16 nodes used in script writing.

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* Ignore the settings for seismic recordings in the subsequent window. Resetting instruments (e.g., sampling rate, gain) requires reprogramming via script.

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== File structure ==

There are essentially three main folders where relevant PROSPECT and PROJECT DATA is stored. Individual projects will be found as subfolders in these.

=== SOLOLITE ===

This folder stores SoloLite config files and parameters. Nothing too important stored here, you can always start over and re-create this.

=== DCCDATA ===

This folder stores the RAW data you have harvested from the nodes. The data will still be on the nodes (unless you erased it) in case of emergency, but regardless, this is the folder you want to back up and save somewhere.

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If you had a weird time harvesting a node, you can always manually copy it as if it were a USB stick and place it into this folder manually. The structure is: //C:/DCCDATA/prospect_name/project_name/SERIALNUMBER/label(usually a timestamp but can be anything)//

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Then in the SoloLite software, go to tools > Reanalyze Seismic Data

=== SOLODATA ===

This folder stores **exported** (e.g. miniseed) data. It is structured similarly. If your DCCDATA is intact, this can always be re-created if need be.

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== Data Downloading Process ==

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**Initiating Data Download**:

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* Once a new project is created, the Data Transfer View panel will display connected nodes with details like series number and data size.

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* If “Prospect not matched” appears, it simply means the new project doesn’t match the original programming project. This is not a concern.

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* Select all nodes and right-click to “force download”. This starts the download process.

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* Completed downloads will appear as new folders in the Downloaded Data panel.

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**Exporting Data in Readable Format**:

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* Go to the “Tool” menu and select “export seismic data”.

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* Tailor other parameters to personal preference and ensure "Sample Interval" matches the setting used during node reset.

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* Click “prepare” followed by “run” to start reformatting. Monitor this process in the small panel at the bottom left.

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* **Ensure to export data as "COUNTS" (int32), not "mV" (float). This is critical!**

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* **Set "Remove Gain" to the same decibel gain as during programming. By default ANU sets this to 24db for short period nodes (a scaling factor of 15.848932), and 6db (a factor of 2.0) for broadband nodes.**

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== Smart Solo IGU-16HR Polarity Notice ==

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See [[https:~~/~~/auspass.edu.au/xwiki/bin/view/Data/AusPass%20Data/#HSmartSoloNodeZPolaritybug>>https://auspass.edu.au/xwiki/bin/view/Data/AusPass%20Data/#HSmartSoloNodeZPolaritybug]] for discussion. If data is headed to AusPass, we prefer to invert the IGU-16HR channel data manually rather than in the SoloLite software or inverting the response metadata.

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**The BD3C-5 data does not require a polarity inversion.**

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== 18 Leap Second bug ==

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Not so much a //bug// as much as "a thing that can happen if your SoloLite installation is corrupted". If you notice your data has large constant time offsets, you should suspect that the number of leap seconds has not been accounted properly. There is a file "smartsoloconfig.xml" that needs to be present in "C:\SmartSoloApps SoloLite" (e.g. the main program directory) that dictates the leap second offset for the last two data ranges. Since 2017-01-01, this is 18 seconds. At some point in the next few years it will be 19 seconds.

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If this file is missing, just create a new one structured like so, name it "smartsoloconfig.xml" and put it in your main program directory. Then, Reanalyze your data (tools > Reanalyze seismic data) and your data should have the correct time. You can also do this manually, if you want. The offset is 18 seconds precisely.

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<?xml version="1.0" encoding="UTF-8"?>

<start_time>2017-01-01#00:00:00</start_time>

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<end_time>2999-12-31#23:59:59</end_time>

</interval>

<start_time>1970-01-01#00:00:00</start_time>

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<end_time>2017-01-01#00:00:00</end_time>

</interval>

</leapsecond>

<GPS_distance_threshold_degree>

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4e-5

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</GPS_distance_threshold_degree>

</config>

== Handling Nodes During Download ==

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**Monitoring Download Indicators**:

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* During download, green lights on nodes will blink, and associated red lights on the rack will flash.

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* Disconnect nodes properly before unplugging anything.

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* Be cautious: if the laptop enters sleep mode, the download will pause.

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//**Investment in Storage Hardware**~://

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* **Use fast external hard drives to avoid limitations in data harvesting.**

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* **Recommended specifications: USB-C, USB 3.0, and 4+ Tb of space.**

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* **The USB type for the harvester is TYPE-A, the typical normal rectangular shape.**

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**Metadata and Time Settings**:

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* Ensure all metadata is saved with the file.

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* System auto-determines the earliest data time as the start time. You can set it a day earlier at 00:00:00 for 24-hour data segments starting from midnight.

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**Finalizing the Download**:

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* After downloading, mark the //"D"// box on your temporary labels to indicate completion.

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[[image:1706153266647-145.png||data-xwiki-image-style-alignment="center" height="340" width="603"]]

[[Caption>>image:1705195543887-977.png||data-xwiki-image-style-alignment="center" height="534" width="632"]]

[[Caption>>image:1705195543890-537.png||data-xwiki-image-style-alignment="center" height="397" width="665"]]

[[Caption>>image:1705195543891-334.png||data-xwiki-image-style-alignment="center" height="379" width="650"]]

[[image:1705195543898-365.png||data-xwiki-image-style-alignment="center" height="467" width="674"]]

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= **Cleaning** =

When assembled, the nodes are water resistant but not submersible. They can handle a good spray and wipe-down. A strong, non-wire brush is helpful to reach areas between the metal spikes on the bottom.

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= **Weights (for shipping)** =

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The weights of bags of nodes, as well as data harvesters and node chargers, are listed below:

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1 bag + 6*IGU-16HR nodes: 18 kg

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1*IGU-16HR data harvester: 21.5 kg

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1*IGU-16HR charger: 26.3 kg

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1*BD3C-5 charger (with and without 16 cables): 21 kg / 14.5 kg

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1 case + 5*BD3C-5 nodes: 22 kg (aggregate battery weight <5kg, 168Wh)

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1 case + 6*BD3C-5 nodes: 25 kg (aggregate battery weight >5kg, 168Wh)

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(% class="col-xs-12 col-sm-4" %)

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**Contents**

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= SmartSolo [[BD3C-5>>url:https://smartsolo.com/cp-4.html]] =

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[[image:Smartsolo IGU BD3C 5 (2).jpg]]

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[[image:smartsolo.jpg]]

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|(% style="width:189px" %)**Frequency Band**|(% style="width:221px" %)5 Seconds to 150Hz

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|(% style="width:189px" %)**Sensitivity**|(% style="width:221px" %)200 V/m/s

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|(% style="width:189px" %)**Size (without spike)**|(% style="width:221px" %)Φ158 x160mm(H)

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|(% style="width:189px" %)**Weight**|(% style="width:221px" %)2.8 kg

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|(% style="width:189px" %)**Data Storage**|(% style="width:221px" %)64 Gb

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|(% style="width:189px" %)**Battery**|(% style="width:221px" %)(((

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Lithium-ion battery contained in equipment (168.84 Wh)

UN3481 PI967 S1

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= SmartSolo [[IGU-16HR>>url:https://smartsolo.com/cp-3.html]]3C =

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[[image:smartsolo node.jpg]]

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[[image:smartsolo node 2.jpg]]

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|(% style="width:187px" %)**Frequency Band**|(% style="width:224px" %)5 Hz to 1652Hz

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|(% style="width:187px" %)**Sensitivity**|(% style="width:224px" %)76.7 V/m/s

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|(% style="width:187px" %)**Size (with spike)**|(% style="width:224px" %)103mm(L) × 95mm(W) × 187mm(H)

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|(% style="width:187px" %)**Weight**|(% style="width:224px" %)2.4 kg

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|(% style="width:187px" %)**Data Storage**|(% style="width:224px" %)64 Gb

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|(% style="width:187px" %)**Battery**|(% style="width:224px" %)(((

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Lithium-ion battery contained in equipment (96.48 Wh)

UN3481 PI967 S2

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= SmartSolo [[IGU-16>>url:https://smartsolo.com/cp-3.html]]1C =

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[[image:Screenshot 2025-08-01 161027.png]]

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|(% style="width:187px" %)**Frequency Band**|(% style="width:224px" %)5 Hz to 413Hz

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|(% style="width:187px" %)**Sensitivity**|(% style="width:224px" %)80 V/m/s

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|(% style="width:187px" %)**Size (without spike)**|(% style="width:224px" %)95mm(L) × 103mm(W) × 118mm(H)

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|(% style="width:187px" %)**Weight**|(% style="width:224px" %)1.1 kg

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|(% style="width:187px" %)**Data Storage**|(% style="width:224px" %)8 Gb

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|(% style="width:187px" %)**Battery**|(% style="width:224px" %)(((

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Lithium-ion battery contained in equipment (38.48 Wh)

UN3481 PI967 S2

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= SmartSolo BD3C-16 Portable Battery Charger =

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[[image:20250729_125049.jpg]]

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|**Dimensions (LxHxW)**|558 x 357 x 300mm

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|**Input rating**|100-210V - 50/60Hz

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|**Power**|1000W

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|**Weight**|14.5kg

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|**Weight with cables**|21kg

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= SmartSolo IGU-16 Portable Data Harvester =

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[[image:20250729_124747.jpg]]

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|**Dimensions (LxHxW)**|625 x 500 x 366mm

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|**Input rating**|100-210V - 50/60Hz

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|**Power**|100W

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|**Weight**|21.5 - 24kg

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|**Slots no.**|16

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|**Download Speed**|20MB/sec/slot

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= SmartSolo IGU-16 Portable Battery Charger =

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[[image:20250729_124644.jpg]]

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|**Dimensions (LxHxW)**|625 x 500 x 366mm

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|**Input rating**|100-210V - 50/60Hz

|**Power**|640W

|**Weight**|26.3kg

|**Slots no.**|16

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= SmartSolo BD3C-5 Carry Case =

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[[image:20250729_124957.jpg]]

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|**Dimensions (LxHxW)**|590 x 225 x 405mm

|**Weight**|8.2kg

|**Slots no.**|6

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= SmartSolo IGU-16 3C Carry Bag =

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[[image:20250729_124502.jpg]]

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|**Dimensions (LxHxW)**|230 x 340 x 310mm

|**Weight**|3.6kg

|**Slots no.**|6

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= SmartSolo IGU-16 1C Carry Bag =

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[[image:20250729_124558.jpg]]

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|**Dimensions (LxHxW)**|225 x 200 x 550mm

|**Weight**|

|**Slots no.**|6

)))

)))

)))

Wiki source code of SmartSolo Node Seismometers

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