Geokon LC-2 User manual

*Waterproof Single-Channel Dataloggers Models 8002-WP-1 and 8002-WP-2 are not CE Approved.
Instruction Manual
Model LC-2
Single Channel Datalogger
No part of this instruction manual may be reproduced, by any means, without the written consent of Geokon®.
The information contained herein is believed to be accurate and reliable. However, Geokon®assumes no responsibility for
errors, omissions or misinterpretation. The information herein is subject to change without notification.
Copyright © 2007-2019 by Geokon®
(Doc Rev FF, 02/19/2019)

Warranty Statement
Geokon warrants its products to be free of defects in materials and workmanship, under normal
use and service for a period of 13 months from date of purchase. If the unit should malfunction,
it must be returned to the factory for evaluation, freight prepaid. Upon examination by Geokon,
if the unit is found to be defective, it will be repaired or replaced at no charge. However, the
WARRANTY is VOID if the unit shows evidence of having been tampered with or shows
evidence of being damaged as a result of excessive corrosion or current, heat, moisture or
vibration, improper specification, misapplication, misuse or other operating conditions outside of
Geokon's control. Components which wear or which are damaged by misuse are not warranted.
This includes fuses and batteries.
Geokon manufactures scientific instruments whose misuse is potentially dangerous. The
instruments are intended to be installed and used only by qualified personnel. There are no
warranties except as stated herein. There are no other warranties, expressed or implied, including
but not limited to the implied warranties of merchantability and of fitness for a particular
purpose. Geokon is not responsible for any damages or losses caused to other equipment,
whether direct, indirect, incidental, special or consequential which the purchaser may experience
as a result of the installation or use of the product. The buyer's sole remedy for any breach of this
agreement by Geokon or any breach of any warranty by Geokon shall not exceed the purchase
price paid by the purchaser to Geokon for the unit or units, or equipment directly affected by
such breach. Under no circumstances will Geokon reimburse the claimant for loss incurred in
removing and/or reinstalling equipment.
Every precaution for accuracy has been taken in the preparation of manuals and/or software,
however, Geokon neither assumes responsibility for any omissions or errors that may appear nor
assumes liability for any damages or losses that result from the use of the products in accordance
with the information contained in the manual or software.

TABLE of CONTENTS
1. INTRODUCTION ...................................................................................................................................................1
2. LC-2 MODEL TYPES ............................................................................................................................................1
2.1 RS-232 INTERFACE (8002-1-1, 8002-1A-1) ........................................................................................................1
2.2 USB INTERFACE (8002-1-2, 8002-1A-2).............................................................................................................1
2.3 RS-485 INTERFACE (8002-1-3, 8002-1A-3) ........................................................................................................2
2.4 WATERPROOF (8002-WP-1, 8002-WP-2)............................................................................................................2
3. GETTING STARTED.............................................................................................................................................3
3.1 TRANSDUCER INSTALLATION ..............................................................................................................................3
3.1.1 Cable Gland Models (8002-1-1, 8002-1-2, 8002-1-3)................................................................................3
3.1.2 10-pin Bulkhead Models (8002-1A-1, 8002-1A-2, 8002-1A-3)...................................................................4
3.2 BATTERY INSTALLATION .....................................................................................................................................4
3.3 ACCESSORIES.......................................................................................................................................................4
3.4 SOFTWARE INSTALLATION AND SETUP ................................................................................................................5
3.4.1 LogView Installation...................................................................................................................................5
3.4.2 Launching LogView ....................................................................................................................................5
3.4.3 LogView Workspaces ..................................................................................................................................6
3.4.4 Adding Projects to LogView Workspaces ...................................................................................................7
3.4.5 Adding Dataloggers to LogView Projects...................................................................................................8
3.4.6 LC-2 Connection (8002-1-1, 8002-1A-1)....................................................................................................9
3.4.7 LC-2 Connection (8002-1-2, 8002-1A-2)....................................................................................................9
3.4.8 Connecting to a Datalogger using LogView.............................................................................................10
3.4.9 Determining COM Port Numbers .............................................................................................................11
3.5 EXAMPLE SETUP USING TEXT COMMANDS .......................................................................................................12
4. COMMAND LIST.................................................................................................................................................18
4.1 “BRNNN”-SET OR DISPLAY THE CURRENT BAUD RATE...................................................................................19
4.2 “C” -DISPLAY CURRENT CLOCK SETTINGS.......................................................................................................19
4.3 “CSMM/DD/YY/HH:MM:SS”-SET THE INTERNAL CLOCK ...................................................................................19
4.4 “DEFAULT” -LOAD FACTORY DEFAULT SETTINGS ........................................................................................20
4.5 “DF” -DISPLAY OR SET DATE FORMAT ............................................................................................................21
4.6 “DNNNN”-DISPLAY ARRAYS FORWARD FROM USER POSITION........................................................................21
4.7 “E” -LOW POWER SLEEP MODE ........................................................................................................................23
4.8 “GNN/SZZZZ/SMMMM/SOOOO OR GNN/SAAAA/SBBBB/SCCCC”-GAUGE SETTINGS............................................23
4.9 “IDDDDDDDDDDDDDDDDD”-DISPLAY OR SET DATALOGGER ID.....................................................................26
4.10 “LC” -LINEAR CONVERSION ...........................................................................................................................27
4.11 “L” -DISPLAY LOG INTERVALS .......................................................................................................................27
4.12 “LN/LLLLL/III”-DEFINE LENGTH AND ITERATION OF INTERVAL .....................................................................28
4.13 “LD” -DISABLE LOG INTERVALS ....................................................................................................................28
4.14 “LE” -ENABLE LOG INTERVALS......................................................................................................................29
4.15 “M” -DISPLAY CURRENT MONITOR MODE SETTING.......................................................................................29
4.16 “MD” -DISABLE MONITOR MODE ..................................................................................................................29
4.17 “ME” -ENABLE MONITOR MODE....................................................................................................................29
4.18 “MS” –DISPLAY CURRENT MEMORY STATUS ................................................................................................29
4.19 “N” -DISPLAY NEXT MEASUREMENT CYCLE ..................................................................................................30
4.20 “NA” -DISPLAY NETWORK ADDRESS .............................................................................................................30
4.21 “NADDD”-SET NETWORK ADDRESS ..............................................................................................................30
4.22 “ND” -NETWORK DISABLE .............................................................................................................................31
4.23 “NE” -NETWORK ENABLE ..............................................................................................................................31
4.24 “NS” -DISPLAY NETWORK STATUS ................................................................................................................32
4.25 “PC” -POLYNOMIAL CONVERSION..................................................................................................................32
4.26 “PNNNN”-SET USER POSITION MEMORY POINTER .........................................................................................32
4.27 “R” -RESET MEMORY POINTERS .....................................................................................................................32
4.28 “RESET” -REBOOT THE LC-2 MICROPROCESSOR ..........................................................................................33
4.29 “RT” -DISPLAY TOTAL NUMBER OF READINGS ..............................................................................................33

4.30 “SR” -SYNCHRONIZE READINGS .................................................................................................................... 33
4.31 “SR0” -READINGS WILL NOT SYNCHRONIZE WITH THE HOUR.........................................................................33
4.32 “SR1” -READINGS WILL SYNCHRONIZE WITH THE HOUR ................................................................................34
4.33 “RT8” -SET MAXIMUM NUMBER OF READINGS TO 8000 ................................................................................34
4.34 “RT16” -SET MAXIMUM NUMBER OF READINGS TO 16000 ............................................................................34
4.35 “S” -DISPLAY STATUS.....................................................................................................................................34
4.36 “SCNNNNN”-SET SCAN INTERVAL .................................................................................................................35
4.37 “SS” -DISPLAY SYSTEM STATUS.....................................................................................................................35
4.38 “SPHH:MM”-STOP LOGGING ..........................................................................................................................36
4.39 “STHH:MM”-START LOGGING ........................................................................................................................36
4.40 “SV” -DISPLAY SOFTWARE VERSION..............................................................................................................37
4.41 “TEST” -PERFORM INTERNAL SELF-TESTS.....................................................................................................37
4.42 “TF” -DISPLAY OR SET TIME FORMAT ............................................................................................................38
4.43 “T” -DISPLAY CURRENT THERMISTOR SETTING..............................................................................................39
4.44 “TR” -DISPLAY CURRENT TRAP COUNT .........................................................................................................39
4.45 “TR0” -RESET TRAP COUNT ...........................................................................................................................39
4.46 “WF” -DISPLAY CURRENT WRAP FORMAT .....................................................................................................39
4.47 “X” -TAKE IMMEDIATE READING ...................................................................................................................40
5. MAINTENANCE...................................................................................................................................................41
5.1 KEEPING THE INSIDE OF THE BOX DRY ..............................................................................................................41
5.2 CLEANING..........................................................................................................................................................41
5.3 BATTERIES .........................................................................................................................................................41
6. TROUBLESHOOTING ........................................................................................................................................43
APPENDIX A. SPECIFICATIONS .........................................................................................................................44
A.1 MEASUREMENT CAPABILITY.............................................................................................................................44
A.2POWER ..............................................................................................................................................................44
A.3 MEMORY...........................................................................................................................................................44
A.4 CLOCK ..............................................................................................................................................................44
A.5 SERIAL INTERFACE (ALL LC-2 MODELS)..........................................................................................................45
A.6 RS-485 NETWORK ............................................................................................................................................45
A.7 VIBRATING WIRE MEASUREMENT ....................................................................................................................45
A.8 INTERNAL/EXTERNAL TEMPERATURE MEASUREMENT .....................................................................................45
A.9 MAIN BATTERY MEASUREMENT.......................................................................................................................45
APPENDIX B. CONNECTOR PINOUTS...............................................................................................................46
B.1 TRANSDUCER CONNECTIONS.............................................................................................................................46
B.1.1 Transducer Cable Connections (8002-1-2) ..............................................................................................46
B.1.2 Transducer Cable Connections (8002-1-1) ..............................................................................................46
B.2 SENSOR CONNECTOR PIN-OUT (8002-1A-1, 8002-2A-1) ..................................................................................46
B.3 COM CONNECTOR PIN-OUT ..............................................................................................................................47
B.4 RS-485 CONNECTOR PIN-OUT (OPTIONAL –8002-1-3).....................................................................................47
APPENDIX C. DATA FILE TRANSFER TO A WINDOWS PC ........................................................................48
C.1 DOWNLOADING DATA USING LOGVIEW ...........................................................................................................48
C.2 DOWNLOADING DATA USING HYPERTERMINAL (OR EQUIVALENT)..................................................................50
APPENDIX D. SAMPLE DATA FILES .................................................................................................................53
APPENDIX E. THERMISTOR TEMPERATURE DERIVATION .....................................................................55
E.1 STANDARD THERMISTOR ...................................................................................................................................55
E.2 HIGH TEMPERATURE THERMISTOR....................................................................................................................56
APPENDIX F. NETWORKING...............................................................................................................................57
F.1 DESCRIPTION .....................................................................................................................................................57
APPENDIX G. LOGWARE COMPATIBILITY ...................................................................................................59
G.1 BATTERY GAUGE ..............................................................................................................................................59

APPENDIX H. LITHIUM COIN CELL .................................................................................................................60
H.1 DESCRIPTION ....................................................................................................................................................60
H.2 REPLACEMENT PROCEDURE..............................................................................................................................60
APPENDIX I. BATTERY REPLACEMENT INSTRUCTIONS FOR UNITS MANUFACTURED BEFORE
SEPTEMBER 2018 ...................................................................................................................................................62
APPENDIX J. WATERPROOF LC-2.....................................................................................................................63
J.1 INITIAL DEPLOYMENT ........................................................................................................................................63
J.2 CHANGING BATTERIES .......................................................................................................................................65
J.3 CABLE REMOVAL/REINSTALL ............................................................................................................................65
FIGURES
FIGURE 1-TERMINAL CONNECTIONS.............................................................................................................................3
FIGURE 2-BATTERY DETAIL .........................................................................................................................................4
FIGURE 3-SELECT WORKSPACE NAME .........................................................................................................................6
FIGURE 4-SELECT WORKSPACE FOLDER ......................................................................................................................6
FIGURE 5-LOGVIEW MAIN WINDOW............................................................................................................................7
FIGURE 6-LOGVIEW MAIN WINDOW WITH NEW PROJECT............................................................................................7
FIGURE 7-LOGVIEW CONTEXT MENU ..........................................................................................................................8
FIGURE 8-DATALOGGER SETTINGS,CONNECTION OPTIONS .........................................................................................8
FIGURE 9-DATALOGGER HIGHLIGHTED,NOT CONNECTED ..........................................................................................9
FIGURE 10 -DATALOGGER CONNECTION MISMATCH ..................................................................................................10
FIGURE 11 -DATALOGGER CONNECTED ......................................................................................................................10
FIGURE 12 -DATALOGGER CONNECTION MISMATCH ..................................................................................................11
FIGURE 13 -DEVICE MANAGER PORTS LIST ................................................................................................................11
FIGURE 14 -HYPERTERMINAL CONNECTION DESCRIPTION .........................................................................................12
FIGURE 15 -COM PORT SELECTION ............................................................................................................................13
FIGURE 16 -COM PORT SETTINGS...............................................................................................................................13
FIGURE 17 -ORDER OF ARRAY USAGE.........................................................................................................................22
FIGURE 18 -LOGVIEW COLLECT DATA BUTTON .........................................................................................................48
FIGURE 19 -DATA COLLECTION PROGRESS BAR .........................................................................................................49
FIGURE 20 -DATA COLLECTION COMPLETE MESSAGE ................................................................................................49
FIGURE 21 -HYPERTERMINAL CONNECTION DESCRIPTION .........................................................................................50
FIGURE 22 -COM PORT SELECTION ............................................................................................................................50
FIGURE 23 -COM PORT SETTINGS...............................................................................................................................51
FIGURE 24 -HYPERTERMINAL TRANSFER MENU .........................................................................................................51
FIGURE 25 -SPECIFY DATA CAPTURE FILE ..................................................................................................................52
FIGURE 26 -HYPERTERMINAL/DATALOGGER COMMUNICATION .................................................................................52
FIGURE 27 -BATTERY INSTALLATION DETAIL .............................................................................................................62
FIGURE 28 -SWAGELOK AND FERULE ORIENTATION ...................................................................................................63
FIGURE 29 -BATTERIES AND CABLE INSTALLED..........................................................................................................64
FIGURE 30 -MARKS ON THE SWAGELOK NUT AND BULKHEAD....................................................................................64
FIGURE 31 -NUT POSITION AFTER TIGHTENING ..........................................................................................................65

TABLES
TABLE 1-TRANSDUCER WIRING................................................................................................................................... 3
TABLE 2-VIBRATING WIRE GAUGE TYPES..................................................................................................................25
TABLE 3-GAUGE TYPE DESCRIPTIONS ........................................................................................................................25
TABLE 4-ENGINEERING UNITS MULTIPLICATION FACTORS ........................................................................................26
TABLE 5-LOGARITHMIC INTERVALS LIST ...................................................................................................................28
TABLE 6-SCOMMAND INFORMATION .........................................................................................................................35
TABLE 7-SS COMMAND INFORMATION.......................................................................................................................36
TABLE 8-TEST MENU INFORMATION .........................................................................................................................38
TABLE 9-APPROXIMATE OPERATING TIMES ...............................................................................................................42
TABLE 10 -TRANSDUCER CABLE CONNECTIONS (USB DATALOGGER) .......................................................................46
TABLE 11 -TRANSDUCER CABLE CONNECTIONS (SERIAL DATALOGGER)....................................................................46
TABLE 12 -SENSOR CONNECTOR PIN-OUT ...................................................................................................................46
TABLE 13 -COM CONNECTOR PIN-OUT.......................................................................................................................47
TABLE 14 -RS-485 CONNECTOR PIN-OUT....................................................................................................................47
TABLE 15 -THERMISTOR RESISTANCE VERSUS TEMPERATURE ....................................................................................55
TABLE 16 -THERMISTOR RESISTANCE VERSUS TEMPERATURE FOR HT MODELS ........................................................56
TABLE 17 -ACTUAL BATTERY LIFE VS.LOGWARE BATTERY GAUGE ..........................................................................59
TABLE 18 –RIBBON CABLE CONNECTIONS FROM BATTERY BOARD (UPPER)TO MAIN PCB (LOWER).........................61
TABLE 19 -TRANSDUCER CABLE CONNECTIONS..........................................................................................................63
EQUATIONS
EQUATION 1-DISPLAYED GAUGE READING USING LINEAR CONVERSION ...................................................................24
EQUATION 2-DISPLAYED GAUGE READING USING POLYNOMIAL CONVERSION..........................................................24
EQUATION 3-DIGITS CALCULATION USING LINEAR CONVERSION ..............................................................................26
EQUATION 4-DIGITS CALCULATION USING POLYNOMIAL CONVERSION .....................................................................26
EQUATION 5-RESISTANCE TO TEMPERATURE .............................................................................................................55
EQUATION 6-HIGH TEMPERATURE RESISTANCE TO TEMPERATURE............................................................................56

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1. INTRODUCTION
The Model LC-2 Single Channel Datalogger is a low cost, battery powered and easy to use
measurement instrument designed to read vibrating wire sensors equipped with thermistors.
The 320K standard memory provides storage for 16000 data. Each array consists of an optional
datalogger ID string (16 characters maximum), a timestamp consisting of the year, date (Julian
day or month/day format), time (hhmm or hours/minutes format) and seconds when the reading
was taken. Also included in the data is the internal 3V (or external 12V) battery voltage, the
datalogger temperature, the vibrating wire reading, the temperature at the transducer and the
array number in memory.
Internal math is calculated using 32-bit floating point notation (IEEE). Math operations on the
instrument reading, such as application of a zero reading, gauge factor (or calibration factor) and
offset when using a linear conversion technique or polynomial coefficients when using the
polynomial conversion, provide output directly in engineering units.
2. LC-2 MODEL TYPES
2.1 RS-232 Interface (8002-1-1, 8002-1A-1)
The datalogger’s internal configuration is defined through communication with a computer using
the supplied RS-232 interface cable and LogView software. The datalogger may also be
configured and monitored using any standard terminal emulator software, such as Microsoft
Windows HyperTerminal™or Geokon’s Terminal Window Software. (See Section 4, “Command
List”, if using terminal emulator software to interface to the datalogger.)
Sensors connect to model 8002-1-1 by means of an internal terminal block (see Table 1) and to
model 8002-1A-1 by means of a 10-pin connector. Refer to Section 3.1, “Sensor Installation” to
connect the vibrating wire transducer to the LC-2 datalogger.
2.2 USB Interface (8002-1-2, 8002-1A-2)
The datalogger’s internal configuration is defined through communication with a computer using
the supplied USB 2.0 interface cable and LogView software. The datalogger may also be
configured and monitored using any standard terminal emulator software, such as Microsoft
Windows HyperTerminal™or Geokon’s Terminal Window Software. (See Section 4, “Command
List”, if using terminal emulator software to interface to the datalogger.)
When connected to a computer via the USB port, the LC-2 appears to the computer as a “virtual”
COM port. The LC-2 datalogger also receives all of its operating power from the computer, thus
extending the internal 3V (or external 12V) battery life. When disconnected from the USB port,
the datalogger automatically switches to the internal 3V (or external 12V) battery pack.
LC-2 model 8002-1-2 provides hard-wired transducer connection by means of an internal
terminal block (see Table 1).LC-2 model 8002-1A-2 provides transducer connection by means of
a 10-pin connector. Refer to Section 3.1, “Sensor Installation” to connect the vibrating wire
transducer to the LC-2 datalogger.

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2.3 RS-485 Interface (8002-1-3, 8002-1A-3)
The datalogger’s internal configuration is defined through communication with a computer using
the supplied RS-485 interface cable and LogView software. The datalogger may also be
configured and monitored using any standard terminal emulator software, such as Microsoft
Windows HyperTerminal™or Geokon’s Terminal Window Software. (See Section 4, “Command
List”, if using terminal emulator software to interface to the datalogger.)
When connected to a computer via the 8001-5 (RS-232) or 8002-5(USB) RS-485 interface, up to
256 LC-2 dataloggers may be networked (daisy chained) together over one RS-485
communications cable.
LC-2 model 8002-1-3 provides hardwired sensor connection by means of an internal terminal
block (see Table 1). LC-2 model 8002-1A-3 provides transducer connection by means of a 10-
pin connector. Refer to Section 3.1, “Sensor Installation” to connect the vibrating wire transducer
to the LC-2 datalogger.
All data, both readings and configuration, are stored in nonvolatile EEPROM with a typical
storage life of 10 years (minimum). The internal temperature compensated real-time clock, used
to provide timekeeping and triggering of readings, is accurate to plus or minus two minutes per
year.
The comma delineated ASCII output format allows for easy importing into popular spreadsheet
programs such as Lotus 1-2-3or Microsoft Excel. See Appendix D for sample data files.
For more information regarding setup and operation of the RS-485 LC-2 models, refer to
Appendix F, “Networking”.
2.4 Waterproof (8002-WP-1, 8002-WP-2)
Geokon’s Model LC-2WP is a waterproof version of the Single Channel LC-2 Datalogger. It is
housed in a rugged PVC enclosure, with a Swagelok cable fitting and 10-pin bulkhead
communications port.
The LC-2WP is available with internal configurations to communicate via RS-232 (8002-WP-1)
or USB (8002-WP-2).
For operating instructions for the LC-2WP, please see Appendix I.

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3. GETTING STARTED
This section will outline the basic steps needed to install the communications software, establish
communication with the Model LC-2 and configure the datalogger in the context of water level
monitoring using a Geokon model 4500S Vibrating Wire Pressure Transducer.
The following equipment will arrive with the Model LC-2 datalogger:
•Set of two alkaline D cell batteries.
•Set of four desiccant packs packaged with the batteries.
•Set of two screwdrivers, one Phillips Head and one Flat Head.
•9-pin Dsub to 10-pin Bendix RS-232 cable (included with models 8002-1-1, 8002-1A-1), or,
USB-A to 10-pin Bendix USB cable (included with models 8002-1-2, 8002-1A-2).
•Model LC-2 Single Channel Datalogger Instruction Manual.
The following are optional accessories:
•RS-485 interface cable(s).
•S-8001-5 or S-8002-5 RS-485 computer interface.
•Vibrating Wire Sensor with built-in thermistor.
If any of these items are missing or damaged, contact the factory for replacements.
3.1 Transducer Installation
3.1.1 Cable Gland Models (8002-1-1, 8002-1-2, 8002-1-3)
1) Open the datalogger by unscrewing the four captive screws on the front of the
enclosure. Make sure that no dirt, water or other contaminants are allowed to
enter the enclosure.
2) Loosen the nut on the cable fitting and remove the white plastic dowel.
3) Thread the transducer cable through the cable fitting.
4) Wire each conductor of the cable into the correct position in the terminal block by
pressing down on the corresponding orange tab at the back, inserting the conductor,
and then releasing the orange tab. Refer to Figure 1 and Table 1 for transducer wiring
information. (See also Appendix B.)
Position
Color
Description
VW+
RED
Vibrating Wire +
VW-
BLACK
Vibrating Wire -
TH+
WHITE
Thermistor +
TH-
GREEN
Thermistor -
SHLD BARE Analog Ground
(shields)
Table 1 - Transducer Wiring
Figure 1 - Terminal Connections

4
5) Tighten the nut on the cable fitting so that it securely grips the cable. This must be
done to ensure that water does not enter the enclosure. (Beware of
overtightening, which may damage the plastic threads.)
3.1.2 10-pin Bulkhead Models (8002-1A-1, 8002-1A-2, 8002-1A-3)
Sensors are attached to the datalogger with a 10-pin Bulkhead connector. Align the
grooves on the transducer connector (male), with the connector on the unit (female). Push
the connector into place and then twist the outer ring of the male connector until it locks.
3.2 Battery Installation
Install the batteries as follows:
(For units manufactured prior to September 2018 refer to Appendix I.)
1) Open the device by unscrewing the four captive screws on the front of the enclosure. Make
sure that no dirt, water or other contaminants are allowed to enter the enclosure.
2) Install the batteries by aligning the positive (+) side of the D cells with the left side of the
battery holder. Push the batteries straight down into the holder.
Figure 2 - Battery Detail
3) The battery select switch (located to the right of the battery holder) is set to “Alkaline” at the
factory. Always use the Alkaline position, even when lithium batteries are installed.
3.3 Accessories
After the batteries have been installed:
1) Remove the desiccant packs from the plastic seal top bag they were shipped in and place
them inside the enclosure.
2) Reinstall the cover. Ensure that the rubber gasket clean and properly seated in the groove on
the underside of the cover. Tighten the screws a little at a time, working in a diagonal pattern.
Make sure the cover seals tightly and evenly.

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3.4 Software Installation and Setup
LogView is Graphical User Interface (GUI) software and is used to communicate with the
datalogger, using a personal computer running a Microsoft Windows®operating system. Other
general-purpose communication programs (e.g., Windows HyperTerminal™) can also be used to
communicate with the Model LC-2 via text-based commands. The LogView and USB drivers
install program can be downloaded at www.geokon.com/software.
Perform the following steps to install LogView software for each computer that will connect to
an LC-2. These instructions are for computers running Windows XP. The installation procedure
is very similar for computers running Windows 7, Windows 2000 and Windows 98. This
installation procedure needs to be performed only once for each computer that will run LogView
to communicate with a LC-2 datalogger.
NOTE: The USB drivers are only required for LC-2 models 8002-1-2, 8002-1A-2 and the 8002-
5 RS-485 Interface
Make sure that the two 1.5V D cell alkaline batteries are installed in the datalogger (See Section
3.2, “Battery Installation”) and that the LC-2 datalogger is not connected to the computer at this
time.
3.4.1 LogView Installation
1) Using Windows Explorer, navigate to the extracted downloaded files. Double click
on the file “start.bat” to start the install process.
2) Click “Next >” when the Welcome window appears.
3) When the Choose Install Location window appears, choose a folder for the LogView
installation then click “Next>”.
4) When the Choose Start Menu Folder window appears, choose an appropriate folder
(default is Geokon) then click “Install”.
5) Click “Next >” when the Java Installation Complete window appears.
6) Click “Finish” when the Completing the LogView Setup Wizard window appears.
3.4.2 Launching LogView
Launching LogView can be accomplished two different ways. Double clicking on the
desktop icon:
Or via the Start button: “Programs →Geokon →LogView”

6
3.4.3 LogView Workspaces
When opening LogView for the first time, the user will be prompted to create a
workspace name (see Figure 3). The workspace name can be any combination of letters
and numbers and, ideally, will be descriptive in nature. See the LogView User’s Guide
for more information on workspaces.
Figure 3 - Select Workspace Name
Once the workspace name has been selected, clicking on “Ok” causes LogView to
prompt the user to choose or create a folder where all the workspace elements will be
stored (see Figure 4). The folder location may be entered directly, e.g.,
C:\Workspaces\East Coast or the Browse button may be used to navigate to a folder
location or to create a new folder (see below). This workspace location will be stored in
the LogView configuration for subsequent application access. Once workspaces are
created, future user access is always by name.
Figure 4 - Select Workspace Folder
If no other is specified, a default folder path is displayed based on the system default
workspace path combined with the new workspace name. After the folder path has been
specified, either the default or user selected (see Figure 4), clicking on “Ok” will display
the main window of LogView (see Figure 5). On the left-hand side of the main window is
the Project Explorer displaying the newly created workspace. The user can now add new
project(s), datalogger(s), and sensor configurations to the workspace by right-clicking on
the workspace and using the menu tools.

7
Figure 5 - LogView Main Window
3.4.4 Adding Projects to LogView Workspaces
Right-clicking on the “PRODUCTION” workspace brings up a context sensitive menu that
allows the user to add projects to this workspace (using the “New->Project” menu
selection). Select a name that makes sense for the real-world project this program will be
used for. In this example, “TestLoggers” was chosen as the project name (Figure 6).
Figure 6 - LogView Main Window with New Project

8
3.4.5 Adding Dataloggers to LogView Projects
Right-clicking on the “TestLoggers” project brings up a context sensitive menu (see Figure
7) that allows users to add dataloggers to their projects. Selecting New->Logger from the
context menu causes the “Datalogger Settings” dialog to be displayed. Like Workspaces
and Projects, Dataloggers can be assigned a unique name. For this example, “MyLogger”
was chosen for the Datalogger name. For a complete description of all datalogger settings
please see the LogView Online Help section on Datalogger Settings. For connection
purposes, the relevant tab in this dialog is “Connection Options” (see Figure 8).
Once connected to a PC, all LC-2 dataloggers require a COM port to be identified in the
“Connection Options”. Starting with firmware revision 5.2.X, LC-2 dataloggers can
communicate at baud rates of 9600 and 115,200. Before this revision, the datalogger baud
rate was 9600, for these dataloggers, the default setting should not be changed Figure 8).
Figure 7 - LogView Context Menu
Figure 8 - Datalogger Settings, Connection Options

9
3.4.6 LC-2 Connection (8002-1-1, 8002-1A-1)
Connect the supplied LC-2 RS-232 Communications cable (COM-108) to the COM port
of the LC-2 datalogger. The protective cap on the datalogger COM connector is removed
by pushing in and turning. Plug the DB-9 end of the RS-232 Communications cable into
the host computer’s RS-232 port (either internal or external via a USB to Serial
converter). Proceed to Section 3.4.8, “Connecting to a Datalogger using LogView”.
3.4.7 LC-2 Connection (8002-1-2, 8002-1A-2)
Connect the supplied LC-2 USB Communications cable (COM-109) to the USB port of
the LC-2 datalogger. The protective cap on the datalogger USB connector is removed by
pushing in and turning. Plug the USB-A end of the USB cable into an available USB-2.0
port on the host computer.
NOTE: On certain PCs with operating systems older than XP, Service Pack 3, the 8002-
1-2 may require the installation of a driver to properly communicate with the PC. If the
PC does not recognize the datalogger’s internal USB to serial converter then the driver
may need to be installed by executing the program, CDMv2_xxxx, from the LogView
Install folder.
Figure 9 - Datalogger Highlighted, Not Connected

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3.4.8 Connecting to a Datalogger using LogView
1) With a Datalogger profile configured and selected in the Project Explorer (see Figure
9 above), click on the “Open Connect” button on the LogView Toolbar.
2) When connecting to a new datalogger for the first time, the message shown in Figure
10 may be displayed after a few seconds. This is normal and is only an indication that
the datalogger does not match the configuration created in the Project Explorer. Click
on “Continue” to finish connecting to the datalogger.
Figure 10 - Datalogger Connection Mismatch
3) Click on the “Upload Settings” button on the LogView Toolbar to synchronize the
datalogger with the LogView configuration (see Figure 11).
4) LogView is now connected and configured correctly for the LC-2 datalogger. Sensors
can now be added to the datalogger in a similar fashion as adding Dataloggers to
Projects. Sensor settings are accessed via the context menu from the Project Explorer.
Figure 11 - Datalogger Connected

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3.4.9 Determining COM Port Numbers
When connecting an 8002-1-1 or 8002-1A-1 datalogger to a PC with an internal serial
port(s) the COM Port number that LogView requires is usually COM1 or COM2 but,
occasionally may be COM3 if the PC has more than one internal serial port. The figure
below (see Figure 12) illustrates that the PC has two serial ports, one internal, COM1 and
the other via a USB to serial converter, COM13.
Figure 12 - Datalogger Connection Mismatch
When connecting an 8002-1-2 or 8002-1A-2 datalogger to a PC then the COM Port
number that LogView requires can be any number and depends on how many other
devices are attached to the PC such as, internal serial ports and Bluetooth devices. Figure
13 below illustrates that the PC has three serial ports, one internal, COM1 and the other
two via USB to serial converters, COM13 and COM3. One way to determine which COM
port an 8002-1-2 datalogger is attached to is to disconnect the cable and see which COM
device disappears from the Device Manager Ports list.
Figure 13 - Device Manager Ports List
In this case, COM3 is actually the 8002-1-2 datalogger and not a universally available
serial port.

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3.5 Example Setup Using Text Commands
For 8002-1-1 and 8002-1-2: Route the vibrating wire transducer cable into the LC-2 enclosure
through the SENSOR bulkhead fitting. Connect the cable wires to the datalogger’s 5-pin internal
terminal block, located on the battery pack mounting plate. (Refer to Section 3.1 or Appendix B,
for wiring information.)
For 8002-1A-1 and 8002-1A-2: Connect the vibrating wire transducer cable to the SENSOR
connector on the LC-2 enclosure.
For USB connected LC-2 dataloggers (8002-1-2, 8002-1A-2), it is important that the LC-2 first
be connected to the computers USB port before running LogView (or other communications
program) so that the LC-2 can be recognized by the computer as a virtual COM port.
Proceed with the following steps to connect with the datalogger using a terminal emulator
program such as Microsoft Windows HyperTerminal™:
1) Launch HyperTerminal (Start → All Programs → Accessories → Communications →
HyperTerminal). If running under Vista or newer, contact Geokon for Geokon’s Terminal Window
Software.
2) Enter a name for the New Connection and click OK (see Figure 14):
Figure 14 - HyperTerminal Connection Description