Cortalk uDL2 Quick guide

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uDL2 Data Logger for
CP Coupons
Configuration and Operation Guide
Print Date:
March 26, 2018

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RESTRICTED PROPRIETARY INFORMATION
This information disclosed herein is the exclusive property of Mobiltex®Data Ltd. And is not to be disclosed without
the written consent of Mobiltex®Data Ltd. No part of this publication may be reproduced or transmitted in any form or
by any means including electronic storage, reproduction, execution or transmission without the prior written consent of
Mobiltex®Data Ltd. The recipient of this document by its retention and use, agrees to respect the security status of the
information contained herein.
This document is intended for limited circulation.
The information contained in this document is subject to change without notice and should not be construed as a
commitment by Mobiltex®Data Ltd. unless such commitment is expressly given in a covering document. Mobiltex®
and corTalk®are registered trademarks of Mobiltex®Data Ltd.
© Copyright Mobiltex®Data Ltd. (2013-2018). All rights reserved.
CURRENT REVISION APPROVALS (Revision 1.07)
Name
Location
Job Function
Signature
Date
Tony da Costa
Calgary
Engineering Manager
Jerry Chilibecki
Calgary
Director of Engineering
REVISION HISTORY
Rev
Start Date
Approval
Date
Description
Prepared By
Draft
0.01
Feb 19, 2013
First draft.
Tony da Costa
1.00
Feb 20, 2013
Initial release.
Tony da Costa
1.01
April 9, 2013
Added coupon test station connection picture.
Added CC Tech coupon test station optional cable and install picture.
Updated software install procedures.
Tony da Costa
1.02
June 14, 2013
Added disconnect delay parameter and screen shot of updated
configuration application.
Tony da costa
1.03
June 21, 2013
Renamed disconnect delay parameter to disconnect holdoff. Added
polarity inversion parameters.
Tony da Costa
1.04
Jan 6, 2015
Added information on new features in v1.06 firmware. Added additional
accessories pictures.
Tony da Costa
1.05
Jan 13, 2015
Updated uDL2-G2 range specifications.
Updated screen shots of config software for v1.07 firmware.
Added information for new dual-potential mode.
Tony da Costa
1.06
May 12, 2015
Updated specifications.
Added information on overcurrent detector retries for v1.09 firmware.
Added generic connection diagrams for coupon and dual potential mode.
Tony da Costa
1.07
Mar 26, 2018
Added uGL2-G3 to specifications table.
Tony da Costa

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Table of Contents
1Introduction ..............................................................................................................................................................5
2General Safety Information ......................................................................................................................................6
3uDL2 Kit Contents....................................................................................................................................................7
4Configuration..........................................................................................................................................................10
4.1 Configuration Equipment Requirements ........................................................................................................10
4.2 Software Installation.......................................................................................................................................10
4.2.1 Configuration Application Installation ...................................................................................................10
4.2.2 Driver Installation...................................................................................................................................12
4.2.3 Adobe Acrobat Reader XI ......................................................................................................................12
4.3 uDL2 Configuration and Extraction ...............................................................................................................13
4.3.1 uDL2 Communications and Status .........................................................................................................13
4.3.1.1 Read Config From uDL2 ....................................................................................................................13
4.3.1.2 Write Config To uDL2 .......................................................................................................................13
4.3.1.3 Link Status..........................................................................................................................................13
4.3.1.4 Factory Options...................................................................................................................................13
4.3.1.5 Firmware.............................................................................................................................................14
4.3.1.6 Serial#.................................................................................................................................................14
4.3.1.7 Read/Write Config File.......................................................................................................................14
4.3.1.8 Set uDL2 Clock ..................................................................................................................................14
4.3.1.9 Read Faults .........................................................................................................................................14
4.3.1.10 Detailed Status................................................................................................................................14
4.3.1.11 Reboot uDL2 ..................................................................................................................................15
4.3.2 Configuration Group...............................................................................................................................15
4.3.2.1 Timing.................................................................................................................................................15
4.3.2.2 Coupon Potential Sampling (CH1) or Potential Sampling (CH1) ......................................................16
4.3.2.3 Coupon Current Sampling (CH2) or Potential Sampling (CH2) ........................................................16
4.3.2.3.1 CH2 Coupon Current Mode .........................................................................................................16
4.3.2.3.2 CH2 Potential Mode.....................................................................................................................17
4.3.2.4 Temperature Sampling........................................................................................................................17
4.3.2.5 Time Display ......................................................................................................................................17
4.3.2.6 Notes...................................................................................................................................................17
4.3.2.7 GPS.....................................................................................................................................................17
4.3.3 Data Memory Group...............................................................................................................................18
5Operation................................................................................................................................................................22
6Firmware Updates...................................................................................................................................................26
uDL Registration ........................................................................................................................................................27
A. uDL2 Equipment Specifications.........................................................................................................................28

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Figures
Figure 1 uDL2 Micro Data Logger...................................................................................................................................5
Figure 2 uDL2 Installed In a Test Station.........................................................................................................................5
Figure 3 uDL2 Front View ...............................................................................................................................................7
Figure 4 uDL2 USB Cable ...............................................................................................................................................7
Figure 5 uDL Black Fabric Case ......................................................................................................................................7
Figure 6 uDL2 Analog Cable and Extension Clip Adapters.............................................................................................8
Figure 7 Large Alligator Clips..........................................................................................................................................8
Figure 8 Programming Application and Driver USB Flash Drive....................................................................................8
Figure 9 CC Technologies Coupon Test Station Direct Interface Cable ..........................................................................9
Figure 10 USA/Canada AC USB Wall Charger...............................................................................................................9
Figure 11 DC USB Vehicle Charger ................................................................................................................................9
Figure 12 Test Station Spacer Rings.................................................................................................................................9
Figure 13 uDLInstaller Dialog........................................................................................................................................10
Figure 14 uDL2 Configuration Application Installation Dialog.....................................................................................11
Figure 15 uDL2 Configuration Application Installation Complete ................................................................................11
Figure 16 Driver Installation Screen...............................................................................................................................12
Figure 17 uDL2CONFIG Main Screen ..........................................................................................................................13
Figure 18 Faults Dialog..................................................................................................................................................14
Figure 19 Detailed Status Dialog....................................................................................................................................15
Figure 20 Channel 2 Mode Selection .............................................................................................................................16
Figure 21 Coupon Area Converter .................................................................................................................................16
Figure 22 Overcurrent Detector Retries Configuration Dialog.......................................................................................17
Figure 23 Extract To Master Data File Dialog ...............................................................................................................18
Figure 24 Sample Master Data File ................................................................................................................................19
Figure 25 Master Data File Split Utility .........................................................................................................................20
Figure 26 Data Preview Charts Selection.......................................................................................................................21
Figure 27 Sample Data Preview Chart ...........................................................................................................................21
Figure 28 Sample Cable Attachment to a Coupon Test Station......................................................................................22
Figure 29 Dual Potential Analog Cable Attachment to a Test Station ...........................................................................23
Figure 30 uDL2 Back View............................................................................................................................................24
Figure 31 uDL2 LCD Display ........................................................................................................................................24
Figure 32 uDL2 Front Face ............................................................................................................................................25
Figure 33 uDL2 Firmware Update Application Dialog..................................................................................................26
Figure 34 uDL2 Firmware Update Application Progress ...............................................................................................27

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1Introduction
The uDL2 is a high accuracy, two channel data logger designed for use with CP coupons. An integral current detector
with interruption relay allow direct measurement of coupon AC current density and coupon DC current. A reference cell
input provides DC potential, AC voltage and Instant-disconnect DC potential measurements. The unit may also be
operated in dual potential mode where the potential of two structures may be measured relative to a common reference
point.
A large LCD can be used to locally verify the readings. Measurement storage capacity of 2,000,000 readings and
rechargeable battery allow the device to capture readings for over 4 months. An internal GPS receiver provides an
accurate time reference and site geo-location coordinates. The small physical size and water resistant (non-submersible)
enclosure allow the device to be utilized in a wide range of field environments including within common CP test stations.
This document details the configuration and operation of the uDL2 product.
Figure 1 uDL2 Micro Data Logger
Figure 2 uDL2 Installed In a Test Station

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2General Safety Information
The following safety precautions must be reviewed to avoid injury and prevent damage to this product or any products
connected to it. To avoid potential hazards, use this product only as specified. If the equipment is used in a manner not
specified by the manufacturer, the protection provided by the equipment may be impaired.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of a larger system. Read the safety sections of the other
component’s manuals for warnings and cautions related to operating the system.
To Avoid Fire or Personal Injury
Connect and Disconnect Properly. Do not connect or disconnect terminal wiring while the wires are connected to a
voltage source.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings and markings on the product. Consult
the product manual for further ratings information before making connections to the product. Do not use an input marked
with measurement category I for measurements within measurement categories II, III or IV. Do not connect category II
inputs directly to mains—a Class 2 CSA/UL transformer must be used for isolation.
Do Not Operate Without Covers. Do not operate this product with covers or panels removed.
Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present.
Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified
service personnel.
Symbols and Terms
Terms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other
property.
Terms on the Product. These terms may appear on the product:
DANGER. Danger indicates an injury hazard immediately accessible as you read the marking.
WARNING. Warning indicates an injury hazard not immediately accessible as you read the marking.
CAUTION. Caution indicates a hazard to property including the product.

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3uDL2 Kit Contents
The Mobiltex part number for the uDL2 kit is A20A03UDL20 (non-USA) or A20A03UDL21 (USA). The following
items are included in each kit:
uDL2 Data Logger for CP Coupons Unit (A15000UDL20 non-USA, A15000UDL21 USA)
Figure 3 uDL2 Front View
uDL2 USB Cable (W164IFUDL01)
Figure 4 uDL2 USB Cable
uDL Black Fabric Case (H20712UDL01)
Figure 5 uDL Black Fabric Case

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uDL2 Analog Cable (W164I0UDL02)
Extension Banana Plug To Clip Adapters (H27404UDL01/H27404UDL02/H27404UDL03)
Figure 6 uDL2 Analog Cable and Extension Clip Adapters
Large Alligator Clips (H27400112BK/H27400112RD/H27400112BU)
Figure 7 Large Alligator Clips
Programming Application and Driver Media (CD or USB flash drive)
Figure 8 Programming Application and Driver USB Flash Drive
To use a PC to communicate with the uDL2, you will require the media (CD or USB flash drive) that shipped
with the uDL2. The media contains drivers and the uDL2 configuration application. If you do not have the
media, the contents can be downloaded from the Mobiltex web site at the following URL.
http://www.mobiltex.com/cathodic/udl2

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The following optional items are also available separately:
CC Technologies Coupon Test Station Direct Interface Cable (Mobiltex P/N W164I0UDL03)
Figure 9 CC Technologies Coupon Test Station Direct Interface Cable
USA/Canada AC USB Wall Charger (P11606UDL01)
Figure 10 USA/Canada AC USB Wall Charger
DC USB Vehicle Charger (P11606UDL02)
Figure 11 DC USB Vehicle Charger
Test Station Spacer Rings (Provide More Height Inside Standard Test Station)
H23510RMU01 (Black)
H23530RMU01 (Orange)
H23540RMU01 (Yellow)
H23550RMU01 (Green)
Figure 12 Test Station Spacer Rings

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4Configuration
4.1 Configuration Equipment Requirements
The following items will be needed when configuring a uDL2.
uDL2 USB Cable (W164IFUDL01)
Programming Application and Driver Media (CD or USB flash drive)
To use a PC to communicate with the uDL2, you will require the media (CD or USB flash drive) that shipped
with the uDL2. The media contains drivers and the uDL2 configuration application. If you do not have the
media, the contents can be downloaded from the Mobiltex web site at the following URL.
http://www.mobiltex.com/cathodic/udl2
The installation media contains configuration applications for both the uDL1 and the uDL2.
Personal Computer (PC)
The application software and drivers require that the PC be running Windows XP SP3 or higher for an operating
system. The PC must have an available USB port.
4.2 Software Installation
To install the configuration application and driver software, insert the media (CD or USB flash drive) that came with
the configuration interface into the appropriate drive or USB port on the PC. If “autorun” is enabled on the PC, the
screen in Figure 13 will appear.
If “autorun” is not enabled, or the contents of the media have been copied to a local directory, use Windows Explorer to
navigate to the media drive or the directory containing the installation software. Double-click on the
“uDLINSTALLER.exe” application. The dialog on Figure 13 will appear.
Figure 13 uDLInstaller Dialog
4.2.1 Configuration Application Installation
Click on the “Install uDL2 Data Logger for CP Coupons Configuration Application” button to start the application
installer. A security warning dialog may appear. Click the “Run” button to continue.

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The following dialog should now appear:
Figure 14 uDL2 Configuration Application Installation Dialog
Follow the instructions presented in the installation screens, clicking “Next” to move to the next screen each time. Some
screens may pause for tens of seconds as the Windows installation procedure is processing. The final screen should
show the dialog in Figure 15. Click “Close” to complete the installation.
Figure 15 uDL2 Configuration Application Installation Complete
A shortcut to theconfiguration application and the uDL2 manual are created in the Windows start menu under the “uDL2
Configuration Application” folder.

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4.2.2 Driver Installation
To prevent potential hardware driver issues in Windows, do not attach the uDL2 to the PC USB port before
installing the device drivers.
From the uDL Installer screen, click the “Install uDL1/2 USB Interface Drivers” button. Note that to install drivers,
you must be logged into the PC with an account that has administrative privileges. The following screen should
display. Follow the installation instructions presented by the driver installer application.
Figure 16 Driver Installation Screen
Once the driver installer completes, you may then plug in the uDL2 through the USB cable into an available USB port
on the PC.
4.2.3 Adobe Acrobat Reader XI
Adobe Acrobat Reader XI is provided on the installation media to allow viewing of the PDF version of the uDL2 manual.
If Acrobat Reader is already installed on the PC, it is not necessary to re-install it. To install Acrobat Reader, click on
the “Install Adobe Acrobat Reader XI” button on the uDL Installer dialog, and follow the instructions provided by the
Acrobat Reader installation application.

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4.3 uDL2 Configuration and Extraction
Attach the supplied USB cable between the PC and the uDL2.
Start the configuration software by clicking on “uDL2 Configuration”shortcut in Windows start menu, under the “uDL2
Configuration Application” folder. The following screen will appear.
Figure 17 uDL2CONFIG Main Screen
4.3.1 uDL2 Communications and Status
4.3.1.1 Read Config From uDL2
The first step in configuring a device is to read in the current settings from the unit. Click on “Read Config From uDL2”.
The “Link Status” field will briefly show “Busy” as the current configuration parameters are read from the uDL2. After
the link status returns to “Idle”, you will see the configuration settings currently in the uDL2. If the uDL2 is not
responding or not connected, an error dialog will pop up. If it is not connected, simply connect the USB cable to the
computer and try again. If the uDL2 LCD display is showing ‘bSY’, wait until ‘USb’ is shown before attempting to
read the configuration from the uDL2.
Once communications have been established with the uDL2, the operational parameters can be configured for the
requirements of a particular measurement session.
4.3.1.2 Write Config To uDL2
Once all configuration items have been set as desired, click the “Write Config to uDL2” button to write the configuration
to the uDL2 and activate it.
4.3.1.3 Link Status
The “Link Status” field will indicate “Disabled”, “Busy” or “Idle”. While “Busy” is shown, the application is actively
communicating with the uDL2 hardware. The application will not respond to further actions while “Busy” is displayed.
The uDL2 can be unplugged at any time from the USB port. However if you have changed any parameters, be sure to
write them to the uDL2 before unplugging the device.
4.3.1.4 Factory Options
The “Factory Options” box will display any factory configured options.

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4.3.1.5 Firmware
The “Firmware” box will show the firmware version of the uDL2 that was last read.
4.3.1.6 Serial#
The “Serial#” box will show the electronic serial number of the uDL2 that was last read.
4.3.1.7 Read/Write Config File
The “Write Config To File” button may be used to store a copy of the current configuration to a file on the PC. The
configuration may be retrieved by using the “Read Config From File” button. After loading the configuration from a
file, it must still be written to the uDL2 before the changes become effective.
4.3.1.8 Set uDL2 Clock
The “Set uDL2 Clock” is used to set the clock of the uDL2 from the PC clock. Note that in GPS equipped units, the
uDL2 clock will automatically be set from the GPS receiver as soon as a valid GPS time fix is detected.
If the GPS receiver is disabled in the configuration, the uDL2 clock should be set at least once before data acquisition
is attempted. Beyond that, the clock should be updated periodically to resynchronize the clock to actual time. The
internal clock of the uDL2 model can be expected to drift as much as +/-10s each month without GPS synchronization.
The uDL2 will maintain the real time clock as long as the battery is not fully depleted.
4.3.1.9 Read Faults
The “Read Faults” button is used to read out any faults that might be present within the uDL2. The information present
in this box should be sent to Mobiltex for analysis when faults are encountered. A history of faults and their associated
time stamps is maintained. To clear the fault history, click the “Clear Fault History” button.
Figure 18 Faults Dialog
4.3.1.10 Detailed Status
The “Detailed Status” button causes a pop-up window to appear. The window includes detailed information about
several items used by the uDL2.
The GPS Status information may be used to diagnose GPS satellite signal reception issues that may prevent time lock
from occurring. Ideally, more than 3 satellites should be in the fix for a reliable lock.

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Figure 19 Detailed Status Dialog
4.3.1.11 Reboot uDL2
The “Reboot uDL2” is used to restart the uDL2 application.
4.3.2 Configuration Group
All items in the configuration group may be reset back to factory defaults by clicking on the “Defaults” button.
4.3.2.1 Timing
The “Timing” section allows you to select various timing parameters. The “Sampling interval” (1 second to 12 hours)
determines how often the uDL2 takes a sample for each enabled measurement type. Between samples, the uDL2 enters
a low power sleep mode to conserve battery power.
The “Disconnect Cycle Period” determines how often the coupon interruption relay will be opened for instant-off and
de-polarization measurements. The “Disconnect Duration” value is how long the relay is left open for each disconnect
event. After each relay transition, the uDL2 will wait before taking the next DC potential measurement; this wait time
is determined by one of the two “Sampling Delay” parameters.
“Disconnect Holdoff” sets how long the uDL2 will wait after the analog acquisition starts before the first coupon
disconnect cycle will occur. After the initial disconnect event, disconnect events will repeat at the “Disconnect Cycle
Period” setting.
When the uDL2 is operated in dual-potential channel mode, only the “Sampling interval” timing parameters apply. All
other timing parameters only apply to coupon mode.

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4.3.2.2 Coupon Potential Sampling (CH1) or Potential Sampling (CH1)
The uDL2 may be configured to read the coupon to reference cell potential. Both DC and AC values may be recorded
by checking the appropriate boxes.
The “Inv. Polarity” checkbox can be set if it is desirable for data to be recorded with opposite signs. This option only
affects the DC readings.
4.3.2.3 Coupon Current Sampling (CH2) or Potential Sampling (CH2)
The second channel on the uDL2 may be used for measuring coupon current, or it may be used to measure a second
potential point. The measurement type is selected by clicking on the appropriate radio button under the mode heading
(see Figure 20). In addition, the physical lead connections are shown in the area below the “Connections” heading.
***Note that the reference lead color differs between coupon current and dual potential modes.***
Figure 20 Channel 2 Mode Selection
4.3.2.3.1 CH2 Coupon Current Mode
Coupon current can be measured for both DC and AC values by checking the appropriate boxes. The uDL2 is capable
of measuring current in one of two(three for the uDL2-G2/G3) ranges. Select the range based on the expected maximum
coupon current and the range specifications from Appendix A. Note that only the uDL2-G2 and uGL2-G3 models
supports all three ranges—earlier versions of the hardware only support the medium and high ranges. The low range
radio button will be disabled for units that do not support that range.
The “Inv. Polarity” checkbox can be set if it is desirable for data to be recorded with opposite signs. This option only
affects the DC readings.
Coupon current may be recorded as raw amps, or it may be recorded as amps per square meter by selecting the A/m2
radio button. When recording in A/m2, the surface area of the test coupon must be entered in square meter units. A
coupon area converter calculator (see Figure 21) is provided for simple conversion from other units.
Figure 21 Coupon Area Converter
The uDL2 contains a hardware overcurrent protection circuit that disconnects the current path relay when an excessive
amount of current is flowing. With firmware versions prior to v1.09, the uDL2 would remain in the relay-open state
until the analog cable was removed and then plugged in. With v1.09 firmware, it is possible to configure automatic
reconnection of the current path at predetermined retry intervals. Up to four reconnect retries can be made. Click on
the ‘Overcurrent’ button to configure operation of this new feature. The following dialog is shown:

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Figure 22 Overcurrent Detector Retries Configuration Dialog
To enable automatic reconnect retries, set the ‘Overcurrent Reconnect Retries Enabled’ check box. The four values
shown set the delay between retries, in seconds. If a delay entry is set to a value of 0, that retry delay is skipped.
Care should be taken in using this capability as the current path relay and sense resistor will degrade with each over-
current disconnection event. The number of retries and the delays should be tailored to minimize the number of over-
current events. By default, the unit is set to 300s (5min), 900s (15min), 1800s (30min), and 3600s (1hour) between
reconnection attempts. Also by default, the reconnect retries feature is disabled.
For each automatic reconnection attempt that fails due to overcurrent still being present, a marker will be placed in the
datalogger memory. If a reconnect attempt is successful (i.e. current back to normal levels), the retry counter is reset.
4.3.2.3.2 CH2 Potential Mode
When in potential mode, the second potential point can be measured for both DC and AC values by checking the
appropriate boxes. The “Inv. Polarity” checkbox can be set if it is desirable for data to be recorded with opposite signs.
This option only affects the DC readings. Potential readings are always made in volts.
4.3.2.4 Temperature Sampling
The uDL2 may be configured to measure temperature at the configured sampling interval. Temperature may be logged
in either Celsius or Fahrenheit units.
4.3.2.5 Time Display
The uDL2 can be configured to display the current time during the initial 60 seconds after the analog cable is attached
and for 5 seconds after the analog cable is removed. After the analog cable is attached, the display will cycle through
the measurement data and the time for 60 seconds. Time is shown in 12 hour format with an ‘A’ in the lower right of
the display indicating AM times. To enable this feature, check the ‘Enabled’ box.
The time may be displayed in UTC or local time. Click on the corresponding radio button to select the display time
type. For local time, the time zone of the configuration PC is used to select time zone offset for the uDL2 display.
4.3.2.6 Notes
The “Notes” section allows the user to enter freeform text. This text is inserted into the start of the exported CSV file.
A maximum of 100 characters can be entered into this field.
4.3.2.7 GPS
The “GPS”section allows setting GPS synchronization. The “Require GPS Time Lock To Start Sampling” forces the
uDL2 to wait until accurate time is received from the GPS satellites before starting data recording after the analog cable
is inserted. This option would be checked when high accuracy time stamps are needed on the measurement points.
When checked, the “Disable Long Term GPS Time Synchronization” option stops the uDL2 from periodically turning
on the GPS receiver to maintain accurate time. This option would be enabled to save power when high accuracy timing
is not required for a particular measurement session. The uDL2 will attempt to synchronize the internal clock to the
GPS signal every hour if this option is not enabled.
In addition, with firmware v1.06 and higher, it is also possible to apply a limit check to the position accuracy of the GPS
receiver before a latitude/longitude position is logged by the uDL2. To enable this functionality, check the box labelled
“Enabled Minimum EHPE Validation For Position”. The minimum estimated horizontal position estimate (EHPE) limit
can then be entered, in meters, in the box labelled “Min EHPE (m)”. The limit must be between 3.0 and 200.0 meters.

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A timeout is specified in the “EHPE Timeout (min)” box in minutes. If the minimum EHPE limit is not met within this
timeout period, the current position is logged anyway and the unit continues with data acquisition. The EHPE timeout
can be set between 1 and 3600 minutes.
V1.06+ firmware will also place the EHPE at the time of position logging into the datalog memory. The EHPE value
will be included in the output master data file.
4.3.3 Data Memory Group
The data memory group is used to extract and preview measurement data.
The “Mem Used” section provides a bar graph of the measurement memory usage within the connected uDL2. The
larger the bar graph, the more memory that is used in the device. The color of the bar graph changes from blue to red as
the memory fills.
The “Extract To Master Data File” button allows extraction of the measurement data from the uDL2 into a CSV file.
Prior to clicking this button, ensure that the desired time format is selected. Data may be extracted in UTC (GMT) time,
or in local time. Local time is based on the time zone selected in the operating system of the computer being used to
extract the data. When the “Extract To Master Data File” button is clicked the following save as screen will prompt the
user for the storage filename.
Figure 23 Extract To Master Data File Dialog
The stored file is saved in a comma separated value (CSV) format that can be imported into spreadsheets (i.e. Excel)
and other applications that support CSV import. Note that older versions of Excel support a maximum of 65,000 lines
so large measurement files may not be completely displayed when using those Excel versions. Excel versions prior to
and including version 2003 will have this limitation.
The CSV file is arranged as indicated in the following Excel screen capture. The first line contains header information
which identifies the contents of each column. Each row contains a time stamped event which can include cable insertion
(unit turned on), cable removal (unit turned off), device battery voltage level, GPS location, number of GPS satellites,
potential DC reading, potential DC instant off reading, potential AC reading, current DC reading, current AC reading,
device temperature, user notes, time-base lock status, interruption relay status, EHPE, EHPE limit, potential 2 DC
reading and potential 2 AC reading.

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Figure 24 Sample Master Data File

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The “Master Data File Split Utility” button invokes a utility function that is used to further process the data from the
uDL2 for use in other analysis applications. The function allows a master data file to be split into separate output files
for DC, AC, temperature, and DC wave readings. As well, separate files can be created for different recording sessions.
Click the “Select Source Master File(s)” button to select the master files to be converted. Next, set the output file options
check boxes as required. Finally, click the “Convert” button. The utility function will create the new output files in the
same directory as the source, but with new extensions to the source file name.
The utility may also be used for splitting master data files into smaller files. This can be useful when row limit counts
with processing applications are encountered. For example, Microsoft Excel 2003 has a limit of 65,536 rows, while
newer versions have a limit of 1,048,676 rows. Enter the maximum number of lines (rows) desired in the output files
and then click the “Split” button to break the input files into smaller files. The output files will have the same names as
the input files, but suffixed with an incrementing number for each smaller output file generated.
Figure 25 Master Data File Split Utility
Once the data has been extracted, it may be previewed in a chart. Under the “Data Preview Charts” grouping, click the
“Potential DC”, “Potential AC”, “Potential 2 DC”, “Potential 2 AC”, “Current DC”, “Current AC”, “Potential DC Disc”,
“Temperature”, or “All” buttons to bring up a zoom-able chart of the associated data. Note that this function is intended
to provide quick previews of captured measurement data and not intended as a data analysis tool. The PC mouse can be
used to hover over the graph to display the actual values associated with that measurement point. Detailed data analysis
will need to be done using a third party tool such as Excel or specialized data analysis program.