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Geokon LC-2 Instruction Manual

Single channel datalogger
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Instruction Manual
Model LC-2
Single Channel Datalogger
*Waterproof Single-Channel Dataloggers Models 8002-WP-1 and 8002-WP-2 are not CE Approved.
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)

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Summary of Contents for Geokon LC-2

  • Page 1 Single Channel Datalogger *Waterproof Single-Channel Dataloggers Models 8002-WP-1 and 8002-WP-2 are not CE Approved. 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 ®...
  • Page 3 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.

  • Page 5: Table Of Contents

    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 ......................
  • Page 6 A.1 M ..........................44 EASUREMENT APABILITY A.2 P ................................44 OWER A.3 M ................................44 EMORY A.4 C ................................44 LOCK A.5 S LC-2 M ) ......................45 ERIAL NTERFACE ODELS A.6 RS-485 N ............................45 ETWORK A.7 V ........................45 IBRATING EASUREMENT A.8 I ..................45 NTERNAL...
  • Page 7 ..............................60 ESCRIPTION H.2 R ..........................60 EPLACEMENT ROCEDURE APPENDIX I. BATTERY REPLACEMENT INSTRUCTIONS FOR UNITS MANUFACTURED BEFORE SEPTEMBER 2018 ..............................62 APPENDIX J. WATERPROOF LC-2 ........................63 J.1 I ............................63 NITIAL EPLOYMENT J.2 C ............................65 HANGING ATTERIES J.3 C...
  • Page 8 TABLES 1 - T ........................... 3 ABLE RANSDUCER IRING 2 - V ........................25 ABLE IBRATING AUGE YPES 3 - G ........................25 ABLE AUGE ESCRIPTIONS 4 - E ..................26 ABLE NGINEERING NITS ULTIPLICATION ACTORS 5 - L ........................28 ABLE OGARITHMIC NTERVALS 6 - S C .........................35 ABLE...

  • Page 9: Introduction

    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.

  • Page 10: Rs-485 Interface (8002-1-3, 8002-1A-3)

    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.

  • Page 11: Getting Started

    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.

  • Page 12: 10-Pin Bulkhead Models (8002-1A-1, 8002-1A-2, 8002-1A-3)

    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.

  • Page 13: Software Installation And Setup

    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.

  • Page 14: Logview Workspaces

    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.

  • Page 15: Adding Projects To Logview Workspaces

    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.

  • Page 16: Adding Dataloggers To Logview Projects

    “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.

  • Page 17: 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...

  • Page 18: Connecting To A Datalogger Using Logview

    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.

  • Page 19: Determining Com Port Numbers

    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.

  • Page 20: Example Setup Using Text Commands

    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™:...

  • Page 21: Com Port Selection

    8 Data bits, no Parity, 1 Stop bit, no Flow control. For 8002-4-2 (USB): Configure the new COM port that is added when the LC-2 is connected as 9600 Bits per second, 8 Data bits, no Parity, 1 Stop bit, no Flow control.
  • Page 22 Click Apply then OK. Press <ENTER> to wake the datalogger from sleep. The datalogger returns the power up prompt: Hello. Press "?" for Help. Note: If no characters are received in 15 seconds the datalogger (non-networked) will return to its low power sleep mode. Press <ENTER> to wake it again. Note: When network commands are enabled and RS-485 is being used, the address must be sent before the respective datalogger will respond.
  • Page 23 Next, the configuration for the type of gauge being read must be specified. See Section 4.8, “Gauge Settings”. Assume a Geokon Model 4500S-50 Vibrating Wire Pressure Transducer with a gauge factor of 0.01234 psi/digit (found on the calibration report). Multiply this value by 2.31 to convert psi to feet of water, resulting in a factor of 0.02851.
  • Page 24 Make sure logarithmic intervals are disabled by typing LD and <ENTER>. Log intervals disabled. Enter a scan interval of 10 seconds by typing SC10 and <ENTER>. *SC10 Scan interval: 10 second(s). Enable real-time display of the readings by typing ME <ENTER>. Monitor mode enabled.
  • Page 25 For the purpose of this example, assume that the transducer will monitor absolute depth, has been pulled out of the water, and the reading displayed is -9896.820. Ignoring the sign and digits to the right of the decimal point yields an offset of 9896 to be entered into the datalogger’s memory.

  • Page 26: Command List

    4. COMMAND LIST The commands listed here are to be used if communications between the LC-2 and the host computer are established via a terminal emulator (e.g., Windows HyperTerminal). If using LogView, these commands can be ignored. To send commands and receive information from the Model LC-2 the communications mode must be established between the host computer and the datalogger (see Section 3.4 and Section 3.5).

  • Page 27: Brnnn" - Set Or Display The Current Baud Rate

    Thermistor type (0=standard, 1=high temp BR55A822J, 2=high temp 103JL1A) TR,TR0 Display Trap count, zero Trap count Wrap Format (0 = don't wrap memory, 1 = wrap memory) Single Reading - NOT stored All of these commands are executed by typing with the correct syntax and pressing <ENTER>. If the command has not been entered correctly, the datalogger will usually not respond.

  • Page 28: Default" - Load Factory Default Settings

    User will be asked to verify before executing. Press Y to continue, any other key to abort. *DEFAULT This will load the factory default settings! Are you sure(Y/N)?Y Restored to factory default settings. LC-2 setup after DEFAULT has been issued: MS:0 OP:1 UP:1 GT: 1 ZR: 0.00000 GF: 1.00000...

  • Page 29: Df" - Display Or Set Date Format

    Log Intervals List ------------------------------------------------ Interval #1 Length: 10 Iterations: 100 Interval #2 Length: 20 Iterations: 90 Interval #3 Length: 30 Iterations: 80 Interval #4 Length: 40 Iterations: 70 Interval #5 Length: 50 Iterations: 60 Interval #6 Length: 60 Iterations: 0 4.5 “DF”...

  • Page 30: Figure 17 - Order Of Array Usage

    MS represents the Memory Status of the datalogger. This number indicates how many arrays have been written to memory. If, as in the above example, it is at 8000 and WF (wrap format) = 1, then memory has been filled and it is now overwriting the oldest arrays. If it is at 8000 and WF = 0, then the memory has been filled and logging has stopped.

  • Page 31: E" - Low Power Sleep Mode

    4.7 “E” - Low Power Sleep Mode Returns the datalogger to its low power sleep mode (readings continue to be logged and displayed in this mode). This command should always be used when finished communicating with the datalogger to ensure the lowest power consumption. However, the datalogger (non- networked) will enter sleep mode regardless if no command is received in a period of approximately 15 seconds, or immediately after the second reading (whichever comes first).
  • Page 32 Linear Conversion The command is described further as follows: nn represents the gauge type, or the configuration of the datalogger’s input channel (see Table 2 and Table 3 in this section), szzzz represents the zero reading for the transducer being read, smmmm represents the multiplier (calibration or gauge factor) that will be applied to the reading to convert to engineering units and soooo is the offset that will be applied to the gauge reading.
  • Page 33 10 To adjust for this discrepancy between LC-2 expected units and calibration units multiply the A coefficient by 1,000,000 and the B coefficient by 1000. The A and B coefficients can be found on the supplied calibration certificate.

  • Page 34: Iddddddddddddddddd" - Display Or Set Datalogger Id

    The "Digits" calculation for the Vibrating Wire transducer output when using linear conversion is based on this equation: Digits = frequency × 10 Equation 3 - Digits Calculation using Linear Conversion The "Digits" calculation for the Vibrating Wire transducer output when using polynomial conversion is based on this equation: Digits = frequency ×...

  • Page 35: Lc" - Linear Conversion

    Datalogger#1,2009,94,0939,30,3.22,23.44,9985.479,25.0,3 Datalogger#1,2009,94,0939,35,3.22,23.53,9985.686,25.0,4 To clear the ID enter a <SPACE> character as the ID. When the ID is cleared the arrays from the logger will display beginning with the year. To display the current ID enter ID <ENTER>. 4.10 “LC” - Linear Conversion Selects the linear conversion method for the instrument reading.

  • Page 36: Ln/Lllll/Iii" - Define Length And Iteration Of Interval

    Interval #4 Length: 40 Iterations: 70/70 Interval #5 Length: 50 Iterations: 60/60 Interval #6 Length: 60 Iterations: 0/0 The above list indicates that there are 42 iterations of interval #1 left before interval #2 begins execution. See Section 4.12 to modify intervals. 4.12 “Ln/lllll/iii”...

  • Page 37: Le" - Enable Log Intervals

    4.14 “LE” - Enable Log Intervals If logging is started (ST command) it will continue based on the interval lengths and iterations of the log list (SC command). Log intervals enabled. *Datalogger#1,2009,94,1004,35,3.22,23.36,9986.394,25.0,1 4.15 “M” - Display Current Monitor Mode Setting The monitor mode will display arrays as they are stored in memory in the course of logging.

  • Page 38: N" - Display Next Measurement Cycle

    4.19 “N” - Display Next Measurement Cycle Displays the next time the datalogger will initiate a measurement cycle. If the start time (ST command) has been set this command will display when logging will begin. *ST10:48 Logging will start at: 10:48:00 Next time to read: 10:48:00...

  • Page 39: Nd" - Network Disable

    Enables networking of two or more LC-2 dataloggers. Network recognition enabled. NOTE: If the LC-2 is connected via the USB port, connection to a network enabled datalogger can be made directly without the need to enter the correct datalogger address. This can be helpful...

  • Page 40: Ns" - Display Network Status

    4.24 “NS” - Display Network Status Displays the current network status. Network recognition disabled. Network recognition enabled. 4.25 “PC” - Polynomial Conversion Selects the polynomial conversion method for the instrument reading. See Section 4.8, “Gauge Settings” for more information. Polynomial conversion selected. 4.26 “Pnnnn”...

  • Page 41: Reset" - Reboot The Lc-2 Microprocessor

    4.28 “RESET” - Reboot the LC-2 Microprocessor All stored readings and settings, as well as the ID and real-time clock settings are not affected by this command. *RESET Resetting... RESET COMPLETE 4.29 “RT” - Display Total Number of Readings Displays the total number of readings that the datalogger will take (8000 or 16000) before either overwriting data memory or stopping logging (depending on the Wrap Format status).

  • Page 42: Sr1" - Readings Will Synchronize With The Hour

    4.32 “SR1” - Readings will Synchronize with the Hour (Default) Readings will be synchronized to the top of the hour. All subsequent readings will occur at the specified scan interval while evenly divisible into the top of the hour. *SR1 Readings are synchronized to the top of the hour.

  • Page 43: Scnnnnn" - Set Scan Interval

    Line Description Manual Sections Status of memory pointers 4.6, 4.26 Gauge information Scan interval setting 4.36 Start/Stop status 4.38, 4.39 Stop time (optional) 4.38 Log interval status 4.13, 4.14 Monitor mode status 4.15 Table 6 - S Command Information 4.36 “SCnnnnn” - Set Scan Interval Enter the scan interval, in seconds.

  • Page 44: Sphh:mm" - Stop Logging

    Line Description Signature of RAM bank one. (checksum) Signature of RAM bank two. (checksum) Signature of RAM bank three. (checksum) Signature of RAM bank four. (checksum) Signature of ROM (checksum) Communication errors counter. Current network address. Current network status. Current time format configuration. Current date format configuration.

  • Page 45: Sv" - Display Software Version

    Software version: 4.17.0 4.41 “TEST” - Perform Internal Self-Tests Initiates a set of internal self-tests that are performed at the factory during final testing. *TEST LC-2 TEST MENU: SELECTION TEST INTERNAL EEPROM EXTERNAL EEPROM BANK 1...

  • Page 46: Tf" - Display Or Set Time Format

    ENTER SELECTION: Selection Description Test the Configuration memory bank Test Readings 1-3200 memory bank Test Readings 3201-6400 memory bank Test Readings 6401-9600 memory bank Test Readings 9601-12800 memory bank Test Readings 12801-16000 memory bank Test Readings 16001-19200 memory bank Test all memory banks Turn on system power supplies Test the 32.768 RTC timebase External test input configuration: gauge type 1...

  • Page 47: T" - Display Current Thermistor Setting

    4.43 “T” - Display Current Thermistor Setting This setting determines the type of external thermistor that is incorporated into the VW gauge. Entering T alone returns the current thermistor setting. Entering T0 sets the external thermistor type to standard 3KΩ@25ºC NTC (default). Entering T1 sets the external thermistor type to high temperature BR55KA822J 8.22KΩ@25ºC NTC.

  • Page 48: X" - Take Immediate Reading

    4.47 “X” - Take Immediate Reading Takes and displays one reading, but does not store this reading in memory. This is useful if interested in obtaining a reading at the moment, without interrupting or affecting the current logging schedule. The User Position is not displayed with the array data. There are no arrays to display.

  • Page 49: Maintenance

    5.1 Keeping the Inside of the Box Dry The LC-2 datalogger is designed to be splash proof and rain proof but is not designed to be submersible under water. The LC-2 enclosure lid is sealed by a gasket, which will remain sealed so long as the lid screws are kept tight.
  • Page 50 Battery Battery Battery Chemistry Pack Capacity Second Minute Hour (Two D cells) Voltage Scan Scan Scan Scan Rate Rate Rate Rate Lithium 7.2V 19 AHr 10.4 days 613 days ≥Two ≥Two years years Alkaline 3.0V 14 AHr 3.2 days 188 days ≥Two ≥Two years...

  • Page 51: Troubleshooting

    6. TROUBLESHOOTING Listed below are a few commonly experienced problems and remedial action. Contact the factory should a problem arise not explained herein or additional information be needed. Symptom: Unit will not respond to communications:  Wrong COM port selected in LogView. See LogView manual ...

  • Page 52: Appendix A. Specifications

    APPENDIX A. SPECIFICATIONS A.1 Measurement Capability Vibrating Wire (all types). • External temperature (thermistor). • Internal temperature (thermistor). • Main battery voltage (3V and 12V) • RTC lithium battery voltage. • A.2 Power Power supply: Internal 3 VDC (7.5Vmax) or External 12 VDC (15Vmax) Processing/communication current: <100 mA VW measurement current:...

  • Page 53: Serial Interface (All Lc-2 Models)

    A.5 Serial Interface (All LC-2 Models) Speed: 9600 and 115,200 bps (version 5.2.X and later) Parameters: Eight Data bits One Stop bit No Parity No Flow Control Data output format: ASCII text A.6 RS-485 Network Maximum nodes: Maximum cable length: 4000', 1.22 km A.7 Vibrating Wire Measurement...

  • Page 54: Appendix B. Connector Pinouts

    APPENDIX B. CONNECTOR PINOUTS B.1 Transducer Connections B.1.1 Transducer Cable Connections (8002-1-2) Terminal block Internal PCB connector Description Cable Wire Position Wire Color J7 pin Color Brown Vibrating Wire + Vibrating Wire - BLACK Orange Thermistor + WHITE Yellow Thermistor - GREEN Green Analog Ground (shields)

  • Page 55: Com Connector Pin-Out

    B.3 COM Connector Pin-out The mating 10 pin Bendix plug is part number PT06F-12-10P. 10 Pin Internal Wire PCB connector J5 Description Bendix Color RS-232 Brown USB VCC Digital Ground USB DM Orange USB DP Yellow Digital Ground Green RS-485 RX Blue RS-485 /RX n.c.

  • Page 56: Appendix C. Data File Transfer To A Windows Pc

    APPENDIX C. DATA FILE TRANSFER TO A WINDOWS PC Data can be downloaded to the PC either via LogView software (refer to the LogView Online Help) or Windows HyperTerminal, which, prior to Windows Vista, was supplied with most personal computers. The steps to download the data using LogView are as follows: C.1 Downloading Data Using LogView The steps below assume that a successful connection has been previously established between LogView and the datalogger.

  • Page 57: Figure 19 - Data Collection Progress Bar

    If the datalogger configuration is set for “Collect new data since last download” in “Datalogger Settings->Data Collection Options” then LogView will issue commands to the datalogger to initiate a download of all arrays since the last time data was downloaded. Once the data collection has been initiated, the following progress bar (see Figure 19) will be displayed until the collection has completed: Figure 19 - Data Collection Progress Bar...

  • Page 58: Downloading Data Using Hyperterminal (Or Equivalent)

    C.2 Downloading Data Using HyperTerminal (or Equivalent) The steps to download the data using HyperTerminal are as follows: Launch HyperTerminal: Start → Programs → Accessories → Communications → Hyper- Terminal 1) Enter a name for the New Connection – Select OK. Figure 21 - HyperTerminal Connection Description 2) Change the “Connect using”...

  • Page 59: Com Port Settings

    3) In the COM Properties Dialog, enter the “Port Settings”. Select Apply. Select OK. Figure 23 - COM Port Settings 4) With the cursor in the display screen, press the Enter key a few times to verify that communications has been established. The datalogger should return the power up prompt: Hello.

  • Page 60: Figure 25 - Specify Data Capture File

    Figure 25 - Specify Data Capture File 7) With the cursor in the display screen, push the <Enter> key a few times to wake up the datalogger Type “S” to get the Status of the datalogger. Type “P1” to position the data array Pointer at location 1. Type “D11”...

  • Page 61: Appendix D. Sample Data Files

    APPENDIX D. SAMPLE DATA FILES D.1 Sample Raw Data File Note: the datalogger ID feature (see ID command) is not being used. 2009,94,1401,30,3.22,24.02,10010.198,25.0,1 2009,94,1401,35,3.22,24.10,10010.213,25.0,2 2009,94,1401,40,3.22,24.13,10009.919,25.0,3 2009,94,1401,45,3.22,24.22,10010.012,25.0,4 2009,94,1401,50,3.22,24.25,10010.125,25.0,5 2009,94,1401,55,3.22,24.25,10010.165,25.0,6 2009,94,1402,0,3.22,24.13,10010.205,25.0,7 2009,94,1402,5,3.22,24.05,10010.031,25.0,8 2009,94,1402,10,3.22,23.99,10010.158,25.0,9 2009,94,1402,15,3.22,23.96,10010.052,25.0,10 2009,94,1402,20,3.22,23.90,10010.140,25.0,11 2009,94,1402,25,3.22,23.87,10010.313,25.0,12 2009,94,1402,30,3.22,23.87,10009.919,25.0,13 2009,94,1402,35,3.22,23.84,10010.146,25.0,14 2009,94,1402,40,3.22,23.84,10010.454,25.0,15 2009,94,1402,45,3.22,23.84,10010.227,25.0,16 2009,94,1402,50,3.22,23.82,10010.280,25.0,17 The comma delineated columns above represent the following: Column 1 represents the year when the array was stored.
  • Page 62 D.2 Sample Formatted Data File Year Time Secs Battery D_Temp Digits S_Temp Array --------------------------------------------------------------- 2009 1401 3.22 24.02 10010.198 25.0 2009 1401 3.22 24.10 10010.213 25.0 2009 1401 3.22 24.13 10009.919 25.0 2009 1401 3.22 24.22 10010.012 25.0 2009 1401 3.22 24.25 10010.125...

  • Page 63: Appendix E. Thermistor Temperature Derivation

    APPENDIX E. THERMISTOR TEMPERATURE DERIVATION E.1 Standard Thermistor Thermistor Type: YSI 44005, Dale #1C3001-B3, Alpha #13A3001-B3 Resistance to Temperature Equation: A+B ( LnR ) +C(LnR) -273.2 Equation 5 - Resistance to Temperature Where; T = Temperature in °C. LnR = Natural Log of Thermistor Resistance. A = 1.4051 ×...

  • Page 64: High Temperature Thermistor

    E.2 High Temperature Thermistor Resistance to Temperature Equation for US Sensor 103JL1A: A+B ( LnR ) +C(LnR) -273.2 +D(LnR) Equation 6 - High Temperature Resistance to Temperature Where; T = Temperature in °C. LnR = Natural Log of Thermistor Resistance. A = 1.127670 ×...

  • Page 65: Appendix F. Networking

    RS-485 network cables to connect the “Network Out” of the first LC-2 to “Network In” of the second LC-2, “Network Out” of the second LC-2 to “Network In” of the third LC-2 and so On the last networked LC-2 (the one physically furthest from the 8001-5 or 8002-5 RS-485 interface), set the TERMINATION JUMPER across pins one and two of PCB connector JP1.
  • Page 66 F.2 Example of a Four Datalogger Networking Session 1) This session assumes that there are four dataloggers running at five second scan intervals. 2) Press <ENTER> to wake the dataloggers from sleep. At this point, each datalogger is “listening” for its network address to be transmitted down the RS-485 bus. 3) To communicate with Datalogger #1 and observe several readings, type #1<ENTER>.

  • Page 67: Appendix G. Logware Compatibility

    APPENDIX G. LOGWARE COMPATIBILITY G.1 Battery Gauge The battery gauge display in Logware is inaccurate when used with the LC-2 datalogger and alkaline D cell batteries. Refer to the table below for the actual remaining battery life: Battery Voltage Display...

  • Page 68: Appendix H. Lithium Coin Cell

    Under normal operating conditions, the 1.5V D cells provide all the power required to operate the LC-2 datalogger. In order to maintain the correct date and time settings for those periods when the D cells are removed, the LC-2 datalogger incorporates a 3V lithium coin cell (Panasonic CR2032) to supply operating current to the internal Real Time Clock.
  • Page 69 8) Using the 1/4” nut driver, remove the four standoffs securing the printed circuit board to the case. 9) Lift the main PCB up to expose the bottom of the board. 10) Using the 1/8” slotted screwdriver, gently pry the lithium coin cell battery from the battery holder.

  • Page 70: Appendix I. Battery Replacement Instructions For Units Manufactured Before September 2018

    APPENDIX I. BATTERY REPLACEMENT INSTRUCTIONS FOR UNITS MANUFACTURED BEFORE SEPTEMBER 2018 1) Remove the four captive lock regular head screws on the top of the case and lift the cover off. Underneath the cover is the 'D' cell battery holder. 2) Remove the two batteries from the holder being careful not to bend the sides outward.

  • Page 71: Appendix J. Waterproof Lc-2

    APPENDIX J. WATERPROOF LC-2 J.1 Initial Deployment 1) Remove the brass Swagelok nut from the Swagelok bulkhead using a 9/16” wrench. A second 9/16” wrench should be used on the bulkhead to prevent it from rotating while loosening or tightening the Swagelok nut. (Note: The white plastic dowel can be placed inside the logger for future use if the cable is removed and the logger needs to be stored.

  • Page 72: Igure Atteries And Able Nstalled

    5) Insert the two D cells straight down into the battery holder. Ensure that the polarity of the batteries matches the diagram on the battery holder. Figure 29 - Batteries and Cable Installed 6) After installing the batteries and wiring the cable into the terminal block (Figure 29), gently close the lid making sure no cables are pinched.

  • Page 73: Changing Batteries

    11) While holding the bulkhead with one wrench, rotate the Swagelok nut with the second wrench 1-1/4 turns using the marks as a reference point. Figure 31 - Nut Position After Tightening J.2 Changing Batteries It is only necessary to remove the screws holding the lid in place. Do not loosen the Swagelok fitting.

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