Data Loggers

The Pegasus is a 3 channel high-resolution data logger. It is very low power and easily configurable via a handheld device. The Pegasus is lightweight and small in form factor. The Pegasus has 32 gigabytes of internal recording space, and is downloaded via free software through USB. It supplies MiniSEED data along with StationXML to smoothly allow data archival. It also has built-in sensor controls, automatic mass re-centering, and calibration functions. The Pegasus is currently supplied as a set with a Trillium Compact sensor for a small station footprint and ease of installation.

Features:

All-In-One systems combine seismic sensors with their dataloggers in a single, easily-deployed unit. Because these units do not require numerous cables to connect a sensor to its datalogger, they avoid many serious problems associated with cables, such as incorrect connector types, broken and chewed wires, or damaged pins. They are also much easier to deploy than conventional sensor/datalogger combinations. Their use can dramatically cut down on both station installation times and the number of required personnel. Their smaller size can also be very beneficial for deployments using volume-limited transportation methods, such as sea vessels.

Because Nodes and SmartSolos both utilize lithium batteries that operate above the 100Wh threshold, shipping of more than 2 units produced by either vendor will require special handling, including: packing, marking and documentation. Special handling, if needed, will require the assistance of a certified dangerous goods shipper.

The Smart Solo IGU-16HR 3C is a compact all-in-one 3-channel sensor & datalogger with onboard GPS timing, and a self-contained power supply. Similar to the FairfieldNodal ZLand 3C, it has been adopted by the academic community as a useful sensor for both active and short-term passive experiments.

The units require a pre-deployment plan to be filled out with the sample rate, gain, and minimum or linear phase specified. The units must be sent back to EPIC for data offload, unless the portable harvester system is requested for the experiment.

Specifications:

The FairfieldNodal ZLand 3C is a compact all-in-one 3-channel sensor & datalogger with onboard GPS timing, and a self contained power supply. Originally designed for use in large N industry deployments, it has been adopted by the academic community as a useful sensor for both active and short-term passive deployments.

Unlike other sensors & dataloggers at EPIC, use of the ZLand 3C requires a deployment plan to be filed in advance with EPIC for handheld unit pre-programming.  Likewise, the units must be sent back to EPIC for data offload.

All equipment, especially dataloggers, sensors and cables, are cleaned and comprehensively tested when they arrive at the PIC, regardless of whether the equipment are newly delivered from the manufacturer or being returned from an experiment.  EPIC makes every effort to ensure that all equipment are operating to the manufacturers specifications, and that all on-board consumables (such as betteries, etc) are fresh.

This article contains links to pages on procedures and metrics employed in the routine certification of:

A datalogger (also know as data acquisition system or DAS) is piece of electronic equipment which converts an input into a digital time series representation. Immense care should be taken when setting up and programming a datalogger. It is highly recommended that only experienced users program their own dataloggers and all others should consult a EPIC staff member for assistance.

While specific procedures and programming details will vary between the various types of dataloggers, there are several things that hold true when working with any datalogger.

The datalogger should be:

GEODE 24-CHANNEL IN-FIELD SEISMOGRAPH.

System consists of one 24-channel Geodes, with two built-in high-speed connections to interface with other Geodes and a PC-compatible controller or the StrataVisor NZ seismograph.

Suitable for reflection, refraction, downhole, crosshole, surface wave, and tomography surveys, and seismic monitoring.

EPIC’s current inventory of multi-channel dataloggers, which now serves as our primary system for active source surveys using geophones, is centered around the ES-3000 Geode and a 60 Channel Strata View NZXP.  The ES-3000 offers reliable performance, portability, and compatibility with EPIC’s existing multi-channel cable systems, originally designed for earlier Geometrics models.

Q330's are typically used for broadband standalone and telemetered real-time data recording. They have an external storage device (either hard drive or USB flash drive) and lend themselves for a variety of telemetered modes.