Single-Channel Dataloggers

Model 8002-1, 8002-1A (LC-2, LC-2A)

The Model 8002-1 (LC-2) and Model 8002-1A (LC-2A) are stand-alone, single-channel dataloggers, designed to read both the vibrating wire element and the integral thermistor of any Geokon vibrating wire sensor. The LC-2 offers an internal hard wired transducer connection and the LC-2A provides an optional 10-pin transducer connector for rapid sensor connection. The dataloggers are housed inside a Fiberglass Nema 4X enclosure, are very robust, weather-proof and particularly well-suited to operation in harsh environments. Power is supplied by two easily accessible ‘D’ cells or by solar panel for remote long-term applications. 16,000 arrays can be stored (8,000 arrays when used with LogWare) before the oldest data is over-written. Strings of LC-2 dataloggers can be daisy chained using the RS-485 interface, and versions are available with radios and modems to provide remote readout capabilities. Complete with Windows® based, user-friendly software.

LogWare Software

Model 8001-2

LogWare simplifies the task of configuration, communication, monitoring, data collection and data reduction using the Geokon Model LC-2 dataloggers. The configuration, data collection and monitoring form includes a screen for measurements, intervals, connection and data collection configuration, a real-time text based monitor, a graphical monitor and terminal emulator. The data reduction form includes a data file editor, Excel compatible spreadsheet and charting component. The spreadsheet can load and save Excel v4.0/5.0/95 files and create HTML tables for use on the internet.

Please note: Logware cannot be used with the LC-2×4 or the LC-2×16. A terminal emultator program, such as HyperTerminal for Windows®, is required.

4-Channel Datalogger

Model 8002-4 (LC-2×4)

The LC-2×4 is a self-contained, multi-channel version of the LC-2. The LC-2×4 provides 4 channels of vibrating wire (with thermistor) and is powered by two ‘D’ cells or by solar panel for remote long-term applications. The datalogger is housed inside a Fibreglass Nema 4X enclosure, and is thus very robust, weather-proof and particularly suited to operation in harsh environments. Their low power consumption provides long battery life and a self-checking function continuously monitors and reports the condition of the main batteries. Data memory consists of 320K bytes of EEPROM, which translates into a memory storage capacity of 10,666 arrays. Each array consists of the datalogger ID, day (Julian or month/day format), time (HHMM), seconds, main battery voltage, datalogger temperature, vibrating wire sensor reading (in engineering units) and the sensor temperature. The array transmission is in comma delineated ASCII text, for easy importation into popular spreadsheet applications. Datalogger configuration and control is accomplished through a simple terminal emulator program, such as HyperTerminal for Windows®, or equivalent.

16-Channel Datalogger

Model 8002-16 (LC-2×16)

The LC-2×16 is similar to the LC-2×4 described above but provides 16 channels of vibrating wire (with thermistor). The LC-2×16 is powered by 4 alkaline ‘D’ cells (or from an external 12V source). The datalogger is housed inside a Fibreglass Nema 4X enclosure. Data memory consists of 320K of EEPROM which translates into a memory storage capacity of 3,555 arrays. Each array consists of the datalogger ID, day (Julian or month/day format), time (HHMM), seconds, main battery voltage, datalogger temperature, vibrating wire sensor reading (in engineering units) and the sensor temperature. The array transmission is in comma delineated ASCII text, for easy importation into popular spreadsheet programs. Datalogger configuration and control is accomplished through a simple terminal emulator program, such as HyperTerminal for Windows®, or equivalent.

Micro-1000 Datalogger

Model 8021

The Micro-1000 is a complete datalogger, designed around the Campbell Scientific Inc. (CSI) Model CR1000 Measurement and Control System. This interface is designed to eliminate the effects of electrical noise and interference on vibrating wire sensor signals. Although manufactured primarily for use with vibrating wire sensors and thermistors, virtually any type of sensor can be read by the Micro-1000 datalogger. The Micro-1000 can be configured to read Carlson type sensors, voltage type sensors, 4-20 ma sensors, and numerous other specialty sensor types. When used with Geokon Model 8032 Multiplexer, the standard Micro-1000 datalogger can read up to 96 vibrating wire sensors and 96 thermistors. Optionally, the system can read up to 256 two-wire sensors.

Micro-800 Datalogger

Model 8025

The Micro-800 Datalogger is designed around the Campbell Scientific, Inc. Model CR-800 Datalogger and uses the Model AVW1 Interface to read Vibrating Wire sensors. It's housed in a sturdy fiberglass enclosure, has low power consumption, a wide operating temperature range, and has protection against lightning damage, making it suitable for use in harsh environments. The standard unit incorporates a Model 8032 Multiplexer which allows for reading either 16 vibrating wire gages and 16 thermistors, or 32 vibrating wire gages. The 4MB memory will store approximately 500,000 high resolution data points or 1,000,000 low resolution data points. Communication is established via an optically isolated RS-232 interface, RS-485 Multidrops, Landline / Cellular modems, or radios. Power is provided by a 12 V, 7 Amp Ahr Gel Cell, maintained by either an AC charger or solar panel.

DSP Digital Signal Processor

Model 8020-47

The Model 8020-47 DSP Digital Signal Processor is designed to be used with Geokon vibrating wire instruments for the elimination of spurious noise effected readings such as those caused by high voltage electrical cables and other forms of electrical interference. The digital signal processor removes the “errant” data by using proprietary techniques of digital filtering. It is ideal for unattended data acquisition systems where alarms may be triggered by preset threshold values. The DSP can also be directly interfaced with PCs to provide a stand-alone data acquisition system (contact Geokon for details).

Multiplexer (MUX)

Model 8032

The Model 8032 Multiplexer expands the number of channels that can be read by the Micro-1000 Datalogger or GK-403 Vibrating Wire Readout Box. The channels are protected against voltage surges with tripolar plasma surge arrestors and bipolar surge arrestors. Optional manual switches may be connected to the terminal board that permit easy access to each channel of the multiplexer for taking manual measurements with a portable readout in tandem with those taken automatically with the datalogger.

MultiLogger Software

Model 8020

MultiLogger is designed to get a Micro-1000 data acquisition system up and running in a matter of minutes while still retaining the power and flexibility of the Campbell Scientific CR1000 Controller. The program provides for selection of interval types and for channel configuration via direct connection to the controller or through multiplexers. Measurement channels can be configured for instrument type and programmed to output temperature corrected data in engineering units. Alarm limits can also be specified.

Vista Data Visualization Software

Model VDV-Base/Standard/Professional

Vista Data Vision software provides a complete package for data storage, browsing, reporting and publishing to the Web. The db.robot.c module copies all new data stored in Geokon Dataloggers into a MySQL database where it is available for rapid calculation and formatting for display and analysis. The database is accessed using the db.data.browser, allowing users to view and display data from multiple sensors in graphical format. Functions are included to manipulate and convert data and to provide for automated reports. The db.web.browser allows users to publish much of the work undertaken in db.data.browser. It includes everything required to start web service, create web maps and allows service providers to customize control over data access. VDV software is available in 3 versions; Base (entry level), Standard and Professional (for advanced users and Service providers). All versions are supported by an extensive, on-screen, Help Menu.

Vibrating Wire Frequency to Analog Converter

Model 8020-59

The Model 8020-59 Vibrating Wire (VW) to Analog Converter provides a simple way to connect Geokon’s vibrating wire transducers to data acquisition systems, which are not capable of reading frequency signals nor able to generate the proper signals required to excite VW transducers. The converter can operate with single transducers, as a stand-alone device, or with multiple transducers in conjunction with the Geokon Model 8032 Multiplexer. The converter is powered using either a 12 V or 24 V supply.