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. 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.

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

LogWare Software screen shots.

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 emulator program, such as HyperTerminal for Windows®, is required.

System Requirements
Operating Systems Windows® 95, 98, NT, XP, XP Pro or Vista
Processor Requirements

486 running at 25 MHz (minimum) Pentium® / Pentium Pro / Pentium II (or equivalent) or higher running at 166 MHz or better (recommended)

Memory Requirements 8 MB (minimum), 32 MB or more (recommended)
Hard Disk Requirements 12 MB (minimum), 20 MB or more (recommended)

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. Datalogger configuration and control is accomplished through a simple terminal emulator program, such as HyperTerminal for Windows®, or equivalent.

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 programs. Datalogger configuration and control is accomplished through a simple terminal emulator program, such as HyperTerminal for Windows®, or equivalent.

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.

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 CR-800 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 −23°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 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.

MultiLogger Software screen shot.

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.

System Requirements

Operating Systems

Windows® 95, 98, 2000, NT 4.0 (workstation or

server), Me, XP Home, XP Professional or Vista

Processor Requirements

486 running at 25 MHz (minimum) Pentium® /

Pentium Pro / Pentium II (or equivalent) or higher

running at 166 MHz or better (recommended)

Memory Requirements 8 MB (minimum), 32 MB or more (recommended)
Hard Disk Requirements 12 MB (minimum), 20 MB or more (recommended)

Vista Data Visualization Software screen shot.

Vista Data Visualization Software

Model VDV-Base/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® 2000, 2000 Professional, XP Home,

XP Professional or Vista

Processor Requirements 1 GHz (minimum), 2 GHz or better (recommended)
Memory Requirements 512 MB (minimum), 1 GB or more (recommended)
Hard Disk Requirements¹ 90 MB (minimum for installation)

Internet Data Publishing

Customer supplied web server

(Microsoft® IIS recommended)

¹An additional 3 MB per year is required for each .dat file imported into the database (based on 10 data columns and 15 minutes sample time).

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)

Products

Please Note: Geokon maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice.