Photo of Model 8002 (LC-2).

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. Data memory consists of 320K bytes of EEPROM, which translates into a memory storage capacity of 16,000 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), the sensor temperature and array number. The array transmission is in comma delineated ASCII text, for easy importation into popular spreadsheet applications. Configuration, communication, monitoring, data collection and data reduction are achieved using LogView Software.

Specifications
Measurement Accuracy ±0.05% F.S. (450-4000 Hz)
Measurement Resolution 1 part in 20,000
Program Memory 24K FLASH
Data Memory 320K EEPROM
Temperature Range −30°C to +50°C
L × W × H 122 × 120 × 91 mm

Photo of Model 8002-4 (LC-2X4).

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 Fiberglass 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. Configuration, communication, monitoring, data collection and data reduction are achieved using LogView Software.

Specifications
Measurement Accuracy ±0.05% F.S. (450-4000 Hz)
Measurement Resolution 1 part in 20,000
Program Memory 24K FLASH
Data Memory 320K EEPROM
Temperature Range −30°C to +50°C
L × W × H 260 × 160 × 91 mm

Photo of Model 8002-16 (LC-2×16)

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 Fiberglass 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 applications. Configuration, communication, monitoring, data collection and data reduction are achieved using LogView Software.

Specifications
Measurement Accuracy ±0.05% F.S. (450-4000 Hz)
Measurement Resolution 1 part in 20,000
Program Memory 24K FLASH
Data Memory 320K EEPROM
Temperature Range −30°C to +50°C
L × W × H¹ 318 × 277 × 159 mm

¹Does not include mounting feet.

LogView Software screen shot.

LogView Software

Model 8001-3

LogView Software simplifies the task of configuration, communication, monitoring, data collection and data reduction using the Geokon Model 8001 (LC-1) and Model 8002 (LC-2) Series Dataloggers. The software is an easy to use, menu-based application, with a Project explorer “tree” in the left hand pane and “Views” in the right hand pane(s). LogView includes screens for configuration, connection, measurement and data collection, plus a real-time text-based monitor, graphical monitor and terminal emulator.

System Requirements
Operating Systems Windows® 2000, XP, XP Pro, Vista or 7
Processor Requirements

Pentium®/Pentium Pro/Pentium II (or equivalent)

or higher running at 166 MHz or better
Memory Requirements 64 MB (minimum), 256 MB or more (recommended)
Hard Disk Requirements¹ 20 MB (minimum), 30 MB or more (recommended)

LogView Mobile Software installed on a Field PC.

LogView Mobile Software

Model 8001-10

LogView Mobile performs most of the same functions as LogView but was designed to operate on a ruggedized, hand-held PC such as the Juniper® Systems Archer Field PC®. As such, LogView Mobile is ideally suited for logger setup and data collection in harsh environments that are too extreme for the use of the typical laptop PC.

System Requirements
Operating Systems Windows® Mobile 6.1 or greater
.NET Frameworks

Microsoft® Compact Framework 3.5
Storage Memory 10 MB free (minimum), 20 MB free (recommended)
Program Memory 5 MB free (minimum), 10 MB free (recommended)

Photo of Model 8020 Micro-1000.

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 Multiplexers, 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.

Specifications

Range

±2.5 millivolts to ±5 volts (analog)

DC to 200 kHz (frequency)

Resolution

0.33 microvolts to 1333 microvolts (analog)

±192 nS/no. cycles measured (frequency)

Accuracy

±0.1% F.S. of reading, plus offset (analog)

±0.01% of reading, plus resolution (frequency)
Excitation Output ±2500 mV
Battery 12 V, 7 Ah Gel Cell
Temperature Range −23°C to +50°C (−55°C to +80°C optional)
L × W × H¹ 420 × 370 × 211 mm

¹Does not include mounting feet.

Photo of Model 8025 Micro-800.

Micro-800 Datalogger

Model 8025

The Micro-800 Datalogger is designed around the Campbell Scientific, Inc. Model CR800 Datalogger and uses the Model AVW200 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. Communication is established via an optically isolated RS-232 interface, RS-485 Multidrops, Land line / Cellular modems, or radios. Power is provided by a 12 V, 7 Ah Gel Cell, maintained by either an AC charger or solar panel.

Specifications

Range

±2.5 millivolts to ±5 volts (analog)

DC to 200 kHz (frequency)

Resolution

0.33 microvolts to 1333 microvolts (analog)

±35 nS/no. cycles measured (frequency)

Accuracy

±0.1% F.S. of reading, plus offset (analog)

±0.01% of reading, plus resolution (frequency)

Excitation Output

±2.5 V at 25 mA (maximum),

Frequency Sweep 5 V with AVW200
Battery 12 V, 7 Ah Gel Cell
Temperature Range −25°C to +50°C (−55°C to +80°C optional)
L × W × H¹ 472 × 431 × 263 mm

¹Does not include mounting feet.

Photo of Model 8025 Micro-800.

Wireless Datalogger

Model 8026

The Model 8026 Wireless Datalogger is intended to transmit data from buried sensors installed in inaccessible locations. It’s designed around the Campbell Scientific, Inc. Model CR800 datalogger, specifically to read Geokon's line of Vibrating Wire sensors. The 8026 Datalogger is housed in a rugged, waterproof enclosure (standard enclosure is PVC, optional stainless steel enclosure also available) together with a C-cell lithium battery pack (for unattended operation) and a RF modem (for wireless data transmission). It has low power consumption, wide temperature range and is moisture resistant. It's configured to read 6 sensors; either 6 VW or 3 VW plus 3 thermistors, or any combination thereof. The 8026 is typically installed with a Spread Spectrum Radio Modem and Antenna.

Specifications

Range

±2.5 millivolts to ±5 volts (analog)

DC to 200 kHz (frequency)

Resolution

0.33 microvolts to 1333 microvolts (analog)

±35 nS/no. cycles measured (frequency)

Accuracy

±0.1% F.S. of reading, plus offset (analog)

±0.01% of reading, plus resolution (frequency)

Excitation Output

±2.5 V at 25 mA (maximum),

Frequency Sweep 5 V with AVW200
Battery C-Cell Lithium 8.5 Ah
Temperature Range −25°C to +50°C (−55°C to +80°C optional)
Diameter × Height 16.8 × 38.1 cm

Photo of Model 8032.

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.

Specifications
Switching Current 1 A (maximum)
Contact Resistance 0.1 Ω (maximum)
Insulation Resistance >1 GΩ
Switch Life >200,000 cycles
Enclosure Nema 4 fiberglass
Temperature Range −20°C to +80°C
L × W × H¹ 318 × 277 × 159 mm

¹Does not include mounting feet.

Photo of Model 8032.

Wireless Vibrating Wire Interface

Model 8040 Series

The Model 8040 Series is designed to expand the data collection possibilities of the Micro-1000 and Micro-800 Series Dataloggers via wireless connectivity, which eliminates the need for running lengthy cables. Available for 2, 4 or 16 sensors (VW plus thermistor), the 8040 Series comprises Campbell Scientific's AVW206 (or AVW216) spectrum analyzer (with built-in 900 Hz or 2.4 GHz radio transmitter), power supply and antenna. It's housed in a rugged NEMA 4X enclosure designed for use in harsh environments with wide temperature tolerance, and resistance to moisture and humidity.

Specifications
Input Range

100 to 6500 Hz (vibrating wire);

±2500 mV (thermistor)
Resolution

0.001 Hz RMS (vibrating wire);

0.001 Ω RMS (thermistor)
Accuracy

±0.013% of reading (vibrating wire);

±0.25% of reading (thermistor)

Wireless Transmission

Range

up to 10 miles (when using a higher gain directional

antenna, under ideal conditions)
Battery 12 V, 7 Ah Gel Cell
Temperature Range −25°C to +50°C (−55°C to +80°C optional)
L × W × H varies by model (please contact Geokon, Inc.)

MultiLogger Software screen shot.

MultiLogger Suite Software

Model 8020

MultiLogger Suite is designed to get Geokon's data acquisition systems (Micro-1000 / Micro-800) up and running in a matter of minutes while still retaining the power and flexibility of the Campbell Scientific CR1000 and CR800 Controllers. 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.

System Requirements

Operating Systems:

Desktop

Windows® 7 Professional (32-bit)¹ (recommended);

XP, Vista

Operating Systems:

Server

Server 2008 Standard (32-bit)¹ (recommended);

Server 2003
Processor Requirements 1 GHz (minimum) or higher (recommended)
Memory Requirements

1 GB (minimum), 2 GB or more (recommended)

4 GB (recommended for Server)
Hard Disk Requirements 10 GB (minimum); 20 GB (recommended for Server)

¹Compatible with 64-bit versions of these operating systems.

Vista Data Visualization Software screen shot.

Vista Data Visualization Software

Model VDV-Standard/Professional

Vista Data Vision (VDV) Software is a complete package for data storage, browsing, reporting and publishing to the Web. Once data has been collected from a Geokon datalogger and saved to the client PC, it is automatically imported into the db.robot.c database where it is available for rapid calculation and display. 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 is a database web browser which, when used with a customer supplied web server (IIS recommended), allows the user to publish most of the work, undertaken in db.data.browser, to the Internet.

System Requirements

Operating Systems

Windows® 7, Vista, XP Professional, 2000 Professional,

Server 2003/2008
Processor Requirements 1.5 GHz (minimum), 2.2 GHz or faster (recommended)
Memory Requirements

1 GB or more (minimum); 2 GB or more (recommended

as more RAM will improve application performance)
Hard Disk Requirements¹ 190 MB (minimum for installation)

Internet Data Publishing²

Customer supplied web server (Microsoft®

IIS recommended)

¹An additional 4 MB per year is required for each .dat file imported into the database

(based on 10 data columns and 15 minutes sample time).

²Vista Data Vision will run on any Web Server that supports PHP.

Photo of Model 8020-59.

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.

Specifications

Power Requirements

12 V or 24 V

90 mA @ 12 V (operation), 10 µA (standby)

75 mA @ 24 V (operation), 16.5 mA (standby)

Operation Modes

Single Channel, 16 VW sensors with thermistors,

or 32 VW sensors
Output (Analog) 0-5 V, 4-20 mA (non-isolated loop generator)
Resolution 16 bit
Accuracy ±0.1% F.S.
Temperature Range −20°C to +80°C
L × W × H 111 × 108 × 36 mm (with cover)

Photo of Model 4500AR “Autoresonant” Piezometer.

Autoresonant Vibrating Wire Sensors

Model 4500CPR · 8020 Series · AR Series

Autoresonant Vibrating Wire Sensors expand the possibilities of dynamic monitoring while retaining the inherent long-term stability of Geokon's line of vibrating wire instruments. Autoresonant sensors are particularly useful where dynamic measurements are required on structures in adverse environments over extended periods of time. Typical applications include the monitoring of wind turbines, bridges, traffic effects and structures that may be subject to earthquake or wind loading. Geokon offers three types of autoresonant sensor. One type uses a custom sensor and an electronic adaptor (Model 4500CPR), another uses the standard vibrating wire sensor and one of two electronic adaptors (Model 8020-42 SCA) and the third type is a custom sensor with internal electronics (AR Series).

Specifications
Model Input Output

4500CPR

±12 VDC at 50 mA (max)

4-20 mA;

Frequency¹ (−100 Hz dynamic range)
8020-42 +12 VDC at 50 mA (max) Frequency (−20 Hz dynamic range)
8020-42CPR +12 VDC at 50 mA (max)

4-20 mA;

Frequency (−20 Hz dynamic range)
4500AR +12 VDC at 25 mA (max) Continuous frequency at 5 volt level

¹Open collector output—requires external pull-up termination resistor.

Products

Please Note: Geokon maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice. Various instruments are discontinued over time and replaced with new, updated models.