Solinst Levelogger Series User manual

User Guide - Software Version 3.2.3
June 5, 2008
Levelogger Series
(Levelogger Gold, Barologger Gold, Levelogger Junior, and Rainlogger)

Levelogger User Guide - Table of Contents
1 Introduction to Solinst Levelogger Series and Software 4
1.1 Level 9
1.1.1 Pressure Calibration 9
1.2 Barologger 9
1.3 Temperature 10
1.4 Total Precipitation 10
1.5 Backwards Compatibility 10
2 System Requirements 11
3 Software Installation 11
3.1 Installing USB Drivers for Software V3.2.3 or Higher 12-15
- USB Installation for Windows 98 12
- USB Installation for Windows 2000 13
- USB Installation for Windows XP (Service Pack 2 or less) 14-15
4 Startup, Configuration and Settings 16
4.1 Communicating with a USB Port 16-17
4.2 Com Port Designation Setup 17
4.3 Data Directory 17
5 Levelogger Settings 18
5.1 Levelogger Information Settings 17-20
- Project ID 18
- Location, input specific site / location information 18
- Altitude 18
- Density Adjustment 19
- Sample Mode 19
- Memory Mode Selection 19
- Linear 19
- Event-based Sample Collection 19
- Schedule Sampling 19
5.2 Setting up Channel Information 20
- For Channel 1: ‘Level’... 21
- Identification 21
- Units 21
- Offset 21
- Range 21
- For Channel 2: ‘Temperature’... 21
5.3 Levelogger Status 22
5.4 Setting up the Levelogger Time 22
5.5 Program Levelogger Settings 22
5.6 Starting and Stopping the Levelogger 22-23
5.7 Saving and Retrieving Levelogger Settings Files 23
6 Rainlogger 24
6.1 Rainlogger Communication Interface 24
- Rainlogger Gauge Connector 24
6.2 Rainlogger Setup 25-26
7 Data Control Window (Downloading and Compensating Data) 27
7.1 Downloading Options 27-29
7.2 Graph Manipulation and Zoom Function 29-30
7.3 Data Compensation 31-32
- Barometric Compensation 32
- Manual Data Adjustment 32
- Density Adjustment 32
- Barometric Efficiency Adjustment 32

Levelogger User Guide - Table of Contents
8 Real Time View Window 33
9 File Export and Print Function 34
10 Installation and Maintenance of Levelogger 35-50
10.1 Installation 35
10.1.1 Free Suspended Installations 36-37
- Suspension Wire Installation 36
- Direct Read Cable Assembly Installation 37
10.1.2 Fixed Installation 37-45
- Open Channel Installations 37-39
- Installation at Weirs 40-41
- Installation in Flumes 41-42
- The California Pipe Method 42
- Orifice Discharge Monitoring 43
- Artesian Monitoring 43-44
- Vacuum/Vapor Monitoring 44-45
10.1.3 Barologger Installation 45
- Barometric Efficiency 45-46
10.1.4 Installation in Extreme Thermal and Marine
Environments 47-48
- Freezing or High Temperature Conditions 47
- Marine or Brackish Installations 48
10.1.5 References 49
10.2 Levelogger Maintenance 50
11 Manual Barometric Compensation 51-54
12 Diagnostic Utility 54
12.1 Read Levelogger Information 54-55
12.2 Run Self-Test 55
12.3 Read Memory Dump 56
12.4 Create Report 57
13 Firmware Upload Utility 58
14 Trouble Shooting Guide 59-62
14.1 Problems During Installation of Levelogger Gold Software 59
14.2 Error During Software Uninstall Process 59
14.3 Problems During Installation of RS232 to USB Converter 59
14.4 Data Has Been Erased Accidentally 60
14.5 Error Messages During Use of Software 60-62
Appendix
i) 3001 Levelogger Gold Quick Start Guide
ii) 3001 Leveloader Gold User Guide
iii) 3001 Leveloader Gold Quick Start Guide

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 4
1 Introduction to Solinst Levelogger Series and Software
Levelogger Gold Software Version 3.2.3 is intuitive and easy-to-use. It is
designed to support the Levelogger Gold Series of products.
Levelogger Gold
The Levelogger Gold is an absolute (non-vented) data logger, which measures
groundwater and surface water levels and temperature. Water levels are
displayed as temperature compensated pressure readings, and can be
barometrically compensated with the aid of a Barologger Gold.
- Solinst recommends customers use Version 3.2.3 Software using with
V2.000 firmware or higher
Levelogger Gold Technical Specifications
Level Sensor: Piezoresistive Silicon in 316L Stainless Steel
Accuracy (Typical): 0.05% FS
Stability of Readings: Superior, low noise, 6 times better than previously
Resolution: 0.002 to 0.0006% FS
Normalization: Automatic Temp Compensation
Temperature Sensor: Platinum Resistance Temperature Detector
Temp. Sensor Accuracy: ± 0.05°C
Temp. Sensor Resolution: 0.003°C
Temp. Comp. Range: -10 to +40°C
Response Time: < 1 minute
Battery Life: 10 Years - based on one reading/min
Clock Accuracy: ± 1 minute /year
Operating Temperature: -20°C to 80°C
Maximum # Readings: 40,000 of level and temperature
Memory: Superior reliability EEPROM Slate, rollover
and redundant backup of last 1200 readings
Communication: Optical Infra-Red Interface, Serial at 9600 Baud,
Conversion to RS232 or USB Computer Connection
Size: 7/8" x 6" (22 mm x 154 mm)
Weight: 6.3 oz (179 grams)
Backwards Compatibility: Full
Corrosion Resistance: Zirconium Nitride (ZrN) Coating
Other Wetted Materials: 316-L Stainless Steel, Delrin, Viton
Sampling Modes: Linear, Event and User-Selectable with
30 separate line items
Measurement Rates: 0.5 sec to 99 hrs
Barometric Compensation: Software Wizard and one Barologger in local area
(approx. 20 miles/30 km) radius
LT Models Full Scale
(FS)
Water Fluctuation
Range
Accuracy
(typical) Resolution
F15, M5 16.4 ft., 5 m 13.1 ft., 4 m ± 0.010 ft., 0.3 cm 0.001% FS
F30, M10 32.8 ft., 10 m 29.5 ft., 9 m ± 0.016 ft., 0.5 cm 0.0006% FS
F60, M20 65.6 ft., 20 m 62.3 ft., 19 m ± 0.032 ft., 1 cm 0.0006% FS
F100, M30 98.4 ft., 30 m 95.1 ft., 29 m ± 0.064 ft., 1.5 cm 0.0006% FS
F300, M100 328.1 ft., 100 m 325 ft., 99 m ± 0.164 ft., 5 cm 0.0006% FS
Note:
This version of software
is not compatible with
older models of the
Levelogger (Silver LT
and LTC, Black LTC and old Rain
Loggers). To program and use
the old versions, Levelogger
3.1.1 or 2.0.3 Software and
User Guides can still be
accessed at:
www.solinst.com/Downloads/

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 5
Barologger Gold
The Barologger Gold uses algorithms based on air pressure only. It measures
and logs changes in atmospheric pressure, which are then used to compensate
water level readings recorded by a Levelogger Gold, or a Levelogger Junior.
Models Full Scale
(FS)
Water Fluctuation
Range
Accuracy
(typical) Resolution
Barologger Air Only ± 0.003 ft., 0.1 cm 0.002% FS

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 6
Levelogger Junior
The Levelogger Junior provides an inexpensive alternative for measuring
groundwater and surface water levels and temperature. The Levelogger Junior
is compatible with all Levelogger Gold accessories.
- Solinst recommends customers use Version 3.2.3 Software with V2.000
firmware or higher
A comparison between Levelogger Gold and Levelogger Junior technical
specifications can be found in the appendix of this User Guide.
3001 Junior - Technical Specifications
Level Sensor: Piezoresistive Silicon in 316L SS
Ranges: F15/M5, F30/M10
Accuracy (typical): 0.1% FS
Resolution: 0.028%, 0.021%
Normalization: Automatic Temp Compensation
Temperature Sensor: Platinum RTD
Accuracy: ± 0.1˚C
Resolution: 0.1˚C
Temp Compensation Range: - 10˚C to 40˚C
Response Time: 3 to 5 minutes
Battery life: 5 Years
Clock Accuracy: ± 1 minute/year
Operating Temperature: - 20˚C to 80˚C
Memory: Non-volatile EEPROM, FRAM back-up
Maximum # Readings 32,000 sets of readings
Communication: Optical Infra-Red to USB or RS232
Size: 7/8” x 5.5” (22 mm x 140 mm)
Weight: 154 g (5.4 oz)
Wetted Materials: 316L Stainless Steel, Delrin®, Viton®
Sampling Mode: Linear, SDI-12, Real Time View
(from 0.5 sec to 99 hrs)
Barometric Compensation: Software Wizard and Barologger Gold
Junior
Models
Full Scale
(FS)
Water Fluctuation
Range
Accuracy
(typical) Resolution
F15, M5 16.4 ft., 5 m 13.1 ft., 4 m ± 0.010 ft., 0.3 cm 0.001% FS
F30, M10 32.8 ft., 10 m 29.5 ft., 9 m ± 0.016 ft., 0.5 cm 0.0006% FS

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 7
Rainlogger
The Rainlogger is designed for use with most standard tipping-bucket rain
gauges with a reed switch output. It measures rainfall level per sampling period
and a five-minute maximum rainfall. Now users can add precipitation data to
their Levelogger network.
- Compatible with Version 3.2.3 Software using V1.000 firmware or higher
Rainlogger Technical Specifications
Battery Life: 10 years (logging two parameters/10 minutes)
Clock Accuracy: ± 1 minute/year
Operating Temperature: -20˚C to 80˚C
Resolution: 0.004 to 0.008" (100 to 200 mm) (dependent on rain gauge type)
Maximum # Readings: 40,000 sets of readings
Memory: Non-volatile EEPROM / FRAM back-up
Communication: Optical infra-red to RS232 or USB
Sampling Mode: Linear
Sampling Rate: 5 minutes to 99 hours
Size: 7/8" x 7" (22 mm x 175 mm)
Weight: 4.8 oz (135 grams)
Materials: Stainless Steel

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 8
Leveloader Gold
The Leveloader Gold is a data transfer device for use with all versions of
Leveloggers. It can be used to download, store, and transfer data from
Levelogger to PC, as well as, save settings files for transfer to a Levelogger.
Also allows real-time viewing of Levelogger readings.
- Compatible with Version 3.2.3 Software or higher using V1.000 firmware
or higher
Software Communication
Leveloggers connect to a laptop or desktop PC with an optical reader cable.
The optical reader cable uses an infrared data reader/port connected to the
Levelogger and an RS232 or USB Com Port to transfer information between
the Levelogger and computer.
Version 3.2.3 Software provides Levelogger Gold users with many convenient
features. Users can view and program Levelogger settings, begin logging
sessions, monitor real-time readings, download data, manage data files, perform
compensations, and save and export files, with this software version.

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 9
1.1 Level
The Levelogger Gold and Levelogger Junior use a high quality piezoresistive silicon
pressure transducer packaged in 316L stainless steel housing. It gives high accuracy
and high stability. The Levelogger Gold body is coated with Zirconium Nitride (ZrN) to
give corrosion resistance. All Leveloggers measure total or absolute pressure. When
the Levelogger is operating in open air, it is recording barometric pressure and
converting that pressure reading to its water level equivalent above the datalogger’s
pressure zero point of 950cm (31.17ft). When submerged, it is recording the
combination of barometric pressure and water pressure. The Levelogger converts the
total pressure reading to its corresponding water level equivalent. Actual water level is
obtained by compensating for barometric pressure. The best method to compensate
for barometric pressure is to employ a Barologger above the water level, somewhere
on site, to obtain records of barometric pressure. The Levelogger Software includes
a Barometric Compensation Wizard, which guides the user through the automated
process of barometric compensation. Manual methods can be employed to determine
the absolute water level using barometric records collected on-site or available from a
local weather station (i.e. Airport). Water level readings from the Levelogger Gold and
Levelogger Junior models are temperature-compensated.
1.1.1 Pressure Calibration
The Levelogger Gold and Levelogger Junior are calibrated against a range of set
reference points to an accuracy of 3 decimal places. The units of pressure are in
pounds per square inch. The conversion factor for pounds per square inch relates to
pressure as follows:
1 pound per square inch = 0.0689476 bar
= 0.703070 m
= 6.895 kPa
= 2.31 ft. H20 @ 4°C.
During the calibration procedure, the Levelogger is fully submerged in a highly
accurate water bath. The bath is set to 15°C and allowed to stabilize.
The pressure is then calibrated to six separate pressure points covering the
entire range of pressure for that particular Levelogger to check for any
non-linearity. The process is repeated again at 35°C to check for temperature
effects. Once done, the Levelogger is approved after all specifications for
accuracy, precision, stability and hysteresis have been met.
1.2 Barologger
The Barologger Gold is designed for use in air only. It has a small range and firmware
algorithms based on air pressure rather than water pressure. This makes the
Barologger less accurate if used in water, but more accurate if used as intended, in air.
Using a Barologger is the most accurate and convenient method of obtaining
atmospheric pressure. When programmed with the same sampling parameters as the
Leveloggers on site, a Barologger can avoid barometric data time lags and any errors
introduced due to moisture buildup, kinking or damage to vented cable.
The Barometric Compensation Wizard in the Levelogger Software simplifies the
adjustment of the level measurements for barometric pressure changes, by using the
synchronized data from all Leveloggers on site and the site Barologger.

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 10
1.3 Temperature
Levelogger Gold and Levelogger Junior, record temperature compensated water
levels. Groundwater and surface water temperature measurements are
particularly important in situations where temperatures may fluctuate
significantly, and when temperature is used in determining liquid level, viscosity
and hydraulic conductivity. Temperature monitoring is vital in the calculation of
certain temperature dependent contaminant reaction rates.
A Platinum Resistance Temperature Detector is used to accurately compensate
for temperature changes within the range of -10 to +40˚C. The Leveloggers
will record temperature in its thermal range of -20 to +80˚C, but outside the
range of -10 to +40˚C compensation will be less accurate. The Levelogger
Gold reacts very quickly to changes in temperature (<1 minute) to give high
accuracy. The thermal response time of the Levelogger Junior is 3-5 minutes.
1.4 Total Precipitation
The Solinst Rainlogger is designed to count the tips of an external tipping-bucket rain
gauge within a user defined sample interval and output the total rainfall over that
sample interval. The Rainlogger can store 40,000 readings. The Rainlogger is
designed to be compatible with the Solinst Levelogger series of products. The
Rainlogger is programmed and data viewed and exported using the Levelogger
Software from a PC, it can be communicated with using a Leveloader and can be
integrated into an STS Telemetry System.
1.5 Backwards Compatibility
The Levelogger Gold and the Software Versions 3.2.3 or higher are backward
compatible, with limitations. If a Levelogger Gold is to be used with the Leveloader I,
Leveloader II, a Protocol Converter or an STS or RRL Telemetry System, the
data logger must be programmed with the old Levelogger Version 2.03 Software.
Programming Levelogger Gold loggers using Version 2.03 Software limits the
capabilities of the Gold unit, to be the same as the older stainless steel Levelogger units.
If the user has a mix of Levelogger Gold and older units, they can use the Levelogger
Gold Software to program and read all the loggers. They will get the accuracy and
features inherent in the older stainless steel loggers, but will obtain the higher accuracy
and enhanced features and functions of the Levelogger Gold loggers.

Page 11
Levelogger User Guide - Software Version 3.2.3 or Higher
2 System Requirements
The minimal hardware and software requirements for software installation
and operation are:
Communication Port Setting for Levelogger Communications:
3 Software Installation
• Place the Levelogger CD in the CD ROM drive or download the
software from www.solinst.com/Downloads/ and save to hard drive.
• Open Windows Explorer and double click the setup.exe icon.
• At this point Windows will prompt you through the remainder of the
installation process. Figure 3-1 shows the Levelogger Installation
Wizard.
• Restart the computer after installation is completed. Default Directory
is C:\Program Files\Solinst\Levelogger 3-2 (or higher)
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Hardware Software
Memory: 32MB or more OS: Windows 98, ME, 2000 or XP
Display: VGA: 800 x600 pixels, 256 colour
Ports: USB or RS232 Serial Port
Bits per second 9600
Data bits 8
Stop bits 1
Flow control None

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 12
3.1 Installing USB Drivers for
Levelogger Software V3.2.3 or Higher
Levelogger Software V3.2.3 or higher, for use with Solinst USB Optical Reader, PC
Interface Cable and Leveloader Gold, comes equipped with USB drivers for:
Windows 98, 2000, XP and Vista.
USB Installation for Windows 98
1) Plug the USB device into the computer, and Windows will automatically
detect the connected device and start the Hardware Installation Wizard.
2) A message may prompt the user that an ‘FTDI USB Drives Disk’ must
be inserted (Figure 3-2). A disk is not needed. Just click ‘OK’.
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3) On the next screen select ‘Display a list of all the drivers in a specific
location, so you can select the driver you want’ (Figure 3-3).
4) On the next screen use the ‘Browse’ function to select the appropriate
driver. The directory should be:
C:\Program Files\Solinst\Levelogger3_2\USB Drivers\win98_XP
Complete and finish the installation. Please note that a system restart may
be required.

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 13
USB Installation for Windows 2000
1) Plug the USB device into the PC and Windows will automatically detect
the connected unit.
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2) This will start the ‘Found New Hardware Wizard’, click next.
3) In the ‘Install Hardware Device Drivers’ window, select ‘Search for a
suitable driver for my device (recommended)’.
4) In the ‘Locate Driver File’ window (Figure 3-5), select ‘Specify a location’
and click ‘Next’.
5) In the next window point the browser to the USB driver folder located
in the Levelogger 3_2 folder. Default Destination:
C:\ProgramFiles\Solinst\Levelogger3_2\USB Drivers
6) Once the installation completes, a system restart may be required.

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 14
USB Installation for Windows XP (Service Pack 2 or less)
1) Plug the USB device into the computer, and Windows will automatically
detect the connected device. Click ‘Install’ from a list or specific location’,
then click the ‘Next’ Button. Start the Hardware Installation
Wizard (Figure 3-6).
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2) Select the installation option, ‘Include this location in the search’ (Figure3-7),
then click the ‘Browse’ Button to search for the appropriate directory:
C:\Program Files\Solinst\Levelogger3_2\USB Drivers\win98_XP

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 15
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3) A warning message will then prompt that the software has not passed
the Windows Logo Test. Select ‘Continue Anyway’ (Figures 3-10).
This will complete the installation process. A system restart may
be required.
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Page 16
Levelogger User Guide - Software Version 3.2.3 or Higher
4 Startup, Configurations and Settings
Startup
To start the Levelogger PC Software, click the icon, or click the Start
button and select:
Programs > Solinst > Levelogger > Levelogger 3.2.3 (or higher).
Communication Port Settings
Note that if using a USB port, plug in the USB cable before starting
the Levelogger Software. Once the user starts the program, they can set up
the parameters for the Software. Choose the Com Port Setting from the
Configuration menu to set up the RS232 or USB communication port for
the computer. Figure 4-1 shows the Application Setting Window.
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In the Com Port Selection field, select the communication port that is
connected to the Levelogger by clicking the drop down list. The program
automatically detects the available Com ports on your computer. If using an
RS232 serial port (9-pin male DB9 Com port), identify the Com port number
and select it in the Com Port Selection window.
Note that you may have to restart your computer after adding a new
USB device, before that port will be detected by the Levelogger Software.
4.1 Communicating with a USB Port
USB port communication requires the installation of USB driver software and
the setting up of a Virtual Com port. If communicating via a USB port, the
user will either:
1) connect a Levelogger Optical Reader or PC Interface Cable to the USB port
2) use a USB to RS232 Adapter
If 1) during the installation of Levelogger V3.2.3 or higher Software, the
virtual com port driver will be installed automatically. The Levelogger
Version 3.2.3 or higher Software Installation Wizard also copies a folder to
the Levelogger 3 folder containing all the Solinst USB drivers. When you
plug in the Solinst USB device, check the com port designation.

Page 17
Levelogger User Guide - Software Version 3.2.3 or Higher
Note:
Do not install generic
drivers that Windows
will locate.
Generic drivers are completely
incompatible with Solinst USB
devices.
If 2) Solinst strongly recommends the use of either Keyspan™ or IO Gear™
USB to RS232 Serial Adapters. These adapters have a sufficiently large buffer
to accommodate the size of data bundle and bit transfer rate of the Levelogger.
Follow the manufacturer's USB Driver and Com port setup installations found
on the CD accompanying the adapter.
If you have installed another brand-name adapter, but cannot communicate
with the Levelogger, in most cases the problem is that the adapter does not
have a large enough internal memory buffer. The minimum buffer size should
be 96 bytes.
4.2 Com Port Designation Set Up:
1) Click Start Settings Control Panel
2) Click Systems to open the System Properties
3) Click the Hardware tab and click ‘Device Manager’
4) Double Click the Ports Icon and select the ‘USB Serial Port’
5) Right click and select Properties
6) Click the ‘Port Settings’ tab and click ‘Advanced’
7) Select the Com Port Number and click ‘OK’
4.3 Data Directory
The program will save data downloaded to the following default directory:
<C:\Program Files\Solinst\Levelogger3.2\Data> unless otherwise specified
in the Default Directory field of the Application Settings Window.
After completing Application Settings, click the OK button to confirm and save
the settings.
Levelogger V3.2.3 or higher Software is based on 3 functional windows:
Levelogger Settings, used to set up, start and stop the Levelogger,
Data Control, used to download, view and compensate data and Real Time
View, used to actively view data as it is being collected by the logger.

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 18
5 Levelogger Settings
After the user starts the Levelogger V3.2.3 or higher Software, the Levelogger
settings window will open.
Click the button to retrieve the current settings from the connected Levelogger.
5.1 Levelogger Information Settings
The Levelogger Information Settings window includes Levelogger
identification, Project ID and Location fields, sampling settings, altitude and
fluid density input fields. The following is a description of each of the fields:
•Project ID, input your own Levelogger identification system.
The Project ID is limited to 32 characters.
•Location, input specific site / location information. The location
is limited to 32 characters.
•Altitude in feet or meters above sea level, at which the logger is actually
deployed, is input in the altitude field. Water column equivalent pressure
decreases with altitude at a rate of approximately 1.2:1000 in the lower
atmosphere below 5000 m. You can compensate for this by entering
an elevation between -1000 ft below sea level and 16,500 ft
(or -300 m and 5000 m) above sea level. The readings will then be
automatically compensated for elevation. See Section 11.1.3 for more
information on how the Levelogger and Barologger adjust for altitude.
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Page 19
Levelogger User Guide - Software Version 3.2.3 or Higher
•Sample Mode, allows you to choose the sampling measurement type.
Options are Linear, Event-based and Schedule.
•Memory Mode Selection will be grayed-out if not in Linear Mode
sampling. When using a Levelogger Gold in Linear Mode, there is a
choice of Continuous Logging (wrap around) or Slate Logging.
In Continuous Logging the new log is started at the end of any previous
log and continues logging, eventually recording over the first logged
data. As one of the download options is to ‘Append Data’, Continuous
Logging can be a preferred choice when logging long-term. In Slate
Logging the new log is also started at the end of any previous log, but
will stop recording after 40,000 readings, so that the beginning of the
current log will not be written over.
•Linear refers to a set time interval between collection of readings.
Sample Rate can be any number from 0.5 seconds to 99 hours. The
time unit and number of time unit intervals between each reading are set
up in the Sample rate fields. The Levelogger Gold and Barologger Gold
can store 40,000 readings of level and temperature. The Levelogger
Junior can store 32,000 readings.
•Event-based Sample Collection is the most memory efficient means
of data collection. In Event mode, the Levelogger will activate every
sampling interval defined in Sample rate and check if readings have
changed by the selected percentage (0.1 - 25% of Full Scale) from the
last recorded reading. For Levelogger Gold level is the selected
parameter where change is monitored. The Levelogger will record a
new reading only if the specified change in level has occurred. Note that
the percentage of change for sample collection is set in the Percentage
field beside the Sampling mode and that the threshold change is a
percentage of the Levelogger's Full Scale for that particular parameter.
An important reminder is that, although actual memory usage in stable
water level conditions may be relatively small, battery power
consumption is partially a function of the sample reading rate.
Therefore, a small sample reading interval will consume battery power at
a higher rate whether readings are stored or not. In Event-based sampling
mode, the Levelogger Gold has a total memory of 25,000 readings of level
and temperature.
•Density Adjustment is used to adjust the range of the Levelogger based
on the sample fluid density. The range for the density adjustment is from
0.9 kg/L to 1.1 kg/L. Uncheck the Density Adjustment field to
disable the Density Adjustment function.
Note:
The Levelogger Junior
records using the linear
samlping mode only.
Note:
The battery life of the
Levelogger Gold is 10
Years, based on 1
reading per minute. More rapid
readings will reduce the battery life.
For example, if a Levelogger Gold
is setup in Continuous Mode at a
sampling rate of 1 second, the
battery will be depleted in
approximately 4 months.

Levelogger User Guide - Software Version 3.2.3 or Higher
Page 20
•Schedule Sampling is set by selecting Schedule and clicking the Edit
button in the Levelogger Settings screen to bring up the Schedule Setup
Window. Buttons allow adding and deleting of lines, updating, opening
and saving of *.sci schedule files. The maximum number of line items in
a schedule is 30, each with its own sampling interval of seconds, minutes
or hours and duration of seconds, minutes, hours, days or weeks.
Running totals of the number of readings still available, from the total
possible 40,000, and the run time to date are shown. If the number of
readings selected exceeds 40,000 an error message appears. Schedule
sampling allows the user to select a logarithmic style sampling schedule
adapted to the needs of each application.
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