Solinst Levelogger Series User manual

User Guide
Levelogger Series
September 1, 2020

© 2020 Solinst Canada Ltd. All rights reserved. Printed in Canada.
Solinst and Levelogger are registered trademarks of Solinst Canada Ltd.
All other trademarks and registered trademarks are the property of their respective owners.

Levelogger Series User Guide - Table of Contents
1 Introduction 5
1.1 Levelogger Series 6
1.1.1 Levelogger 5 6
1.1.2 Barologger 5 7
1.1.3 Levelogger 5 Junior 8
1.1.4 Levelogger 5 LTC 9
1.1.5 Rainlogger 5 10
1.1.6 Levelogger Edge 11
1.1.7 Barologger Edge 12
1.1.8 Levelogger Junior Edge 13
1.1.9 LTC Levelogger Edge 14
1.1.10 Rainlogger Edge 15
1.2 Measurement Parameters 16
1.2.1 Level 16
1.2.1.1 Pressure Calibration 16
1.2.2 Barometric Pressure 16
1.2.3 Temperature 17
1.2.4 Conductivity 17
1.2.4.1 Calibration of the Conductivity Sensor 17
1.2.5 Total Rainfall 17
2 Communicating with Solinst Dataloggers 18
2.1 Optical Readers 18
2.2 PC Interface Cable 21
2.3 Backwards Compatibility 22
3 System Requirements and Software Installation 23
3.1 System Requirements 23
3.2 Software Installation 23
4 Startup, Configurations and Settings 24
4.1 Startup 24
4.1.1 Software/Firmware Update Checks 24
4.1.2 Communicating with a USB Port 24
4.1.2.1 HID-Compliant USB Devices 24
4.1.2.2 Older Style USB Devices 25
4.2 Configuration and Settings 26
4.2.1 Data Directory 26
4.2.2 File Name Settings 26
4.2.3 Default File Type 26
5 Levelogger Series Setup 27
5.1 Datalogger Settings 28
5.1.1 Setting Up Channel Information 29
5.1.1.1 Level Channel (Ch1) 29
5.1.1.2 Temperature Channel (Ch2) 29
5.1.1.3 Conductivity Channel (Ch3) 30
5.1.1.4 Rainloggers 31
5.2 Datalogger Information 32
5.3 Datalogger Memory 32
5.4 Datalogger Time 32
5.5 Datalogger Sampling Mode 33
5.6 Datalogger Memory Mode 34
5.7 Saving and Retrieving Levelogger Settings Files 35
5.8 Starting and Stopping the Datalogger 36

Levelogger Series User Guide - Table of Contents
6 Conductivity Calibration 38
6.1 Restore Factory LTC Levelogger Calibration 43
7 Data Control 44
7.1 Downloading Options and Saving Data Files 45
7.1.1 Default File Format 45
7.1.2 Downloading Data 46
7.1.3 Saving Data 47
7.2 Graph Manipulation and Zoom Function 48
7.3 File Export and Print Function 51
8 Data Compensation 52
8.1 Data Wizard 52
8.1.1 Basic Compensation 54
8.1.2 Advanced Compensation 56
8.2 Manual Barometric Compensation 63
9 Real Time View 64
10 Installation and Maintenance of Leveloggers 65
10.1 Installation 65
10.1.1 Free Suspended Installations 66
10.1.1.1 Suspension Wire/Cord Installation 66
10.1.1.2 Direct Read Cable Assembly Installation 68
10.1.1.3 Model 3001 Well Cap Assembly 71
10.1.2 Fixed Installations 72
10.1.2.1 Flowing Artesian Monitoring 72
10.1.2.2 Vacuum Monitoring 72
10.1.3 Barologger Installation 73
10.1.3.1 Barometric Efficiency 73
10.1.4 Rainlogger Installation 74
10.1.5 Installation in Extreme Environments 75
10.1.5.1 Freezing or High Temperature Conditions 75
10.1.5.2 Marine or Brackish Installations 76
10.1.5.3 Biofouling Conditions 76
10.2 Levelogger Maintenance 77
11 Diagnostics Utility 79
11.1 Run Diagnostics 79
11.2 Read Memory Dump 80
11.3 Create Report 80
11.4 Email Report 81
11.5 LTC Calibration History Report 82
11.6 Software/Firmware Updates 82
12 Firmware Upgrade Utility 83
13 Troubleshooting 84
13.1 Problems During Installation of Levelogger Software 84
13.2 Error During Software Uninstall Process 84
13.3 Data Has Been Erased Accidentally 84
13.4 Error Messages During Use of Software 84
Appendix I

Levelogger Series User Guide
Page 5
1 Introduction
This User Guide focuses on the current Levelogger 4.5 Software and Levelogger 5 Series of dataloggers,
which includes:
• Levelogger 5
• Barologger 5
• Levelogger 5 Junior
• Levelogger 5 LTC
• Rainlogger 5
Levelogger Software 4.5 is also compatible with the Levelogger Edge and Gold Series of dataloggers.
Note: For full specifications on Gold Series dataloggers, see the Appendix.
In addition, Levelogger Software 4.5 is compatible with LevelVent 5 and AquaVent 5 vented dataloggers, which
have a separate User Guide.
Note: For further information about Solinst product compatibility, please refer to the Levelogger Series:
Hardware Compatibility chart at www.solinst.com/downloads/
Levelogger Software is Windows®based and provides many convenient features. You can view and program
datalogger settings, begin logging sessions, monitor real-time readings, download data, manage data files,
perform data compensations, and save and export data files.
Solinst dataloggers can also be used with the Solinst Levelogger App, which shares most of the features of
Solinst Levelogger 4.5 Software, on your smart device. To use the Solinst Levelogger 5 App Interface, see
the separate User Guide. Also, see separate instructions for use with the DataGrabber 5 simple USB data
transfer device.
Note: Let Solinst keep you up-to-date with each new software and firmware release. Register your software
at: www.solinst.com/Registration/ to receive these updates.
A significant physical difference between Levelogger 5 Series of dataloggers compared to all
previous versions (including the Edge and Gold Series), is one large optical eye (lens) versus two
smaller optical eyes and a connection pin at the communication interface.
Section 2 discusses the different hardware options to communicate with each type of datalogger.
Section 10.1.1.2 discusses Direct Read Cable installation options.
Levelogger 5 Optical Eye Levelogger Edge Optical Eyes

Levelogger Series User Guide
Page 6
1.1 Levelogger Series
1.1.1 Levelogger 5
The Levelogger 5 is an absolute (non-vented) datalogger, 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 5.
Note: Solinst recommends using the most recent Levelogger 5 firmware version with the latest Levelogger Software
version. See Section 2.3.
Models Full Scale Accuracy Resolution
M5 5 m (16.4 ft.) ± 0.3 cm (0.010 ft.) 0.001% FS
M10 10 m (32.8 ft.) ± 0.5 cm (0.016 ft.) 0.0006% FS
M20 20 m (65.6 ft.) ± 1 cm (0.032 ft.) 0.0006% FS
M30 30 m (98.4 ft.) ± 1.5 cm (0.064 ft.) 0.0006% FS
M100 100 m (328.1 ft.) ± 5 cm (0.164 ft.) 0.0006% FS
M200 200 m (656.2 ft.) ± 10 cm (0.328 ft.) 0.0006% FS
Levelogger 5 Technical Specifications
Level Sensor: Piezoresistive Silicon with Hastelloy® Sensor
Ranges: 5, 10, 20, 30, 100, 200 m
Accuracy ± 0.05% FS
Resolution:: 0.001% FS, 0.0006% FS
Normalization: Automatic Temperature Compensation
Temp. Comp. Range: 0ºC to 50ºC
Temperature Sensor: Platinum Resistance Temperature Detector (RTD)
Temp. Sensor Accuracy: ± 0.05ºC
Temp. Sensor Resolution: 0.003ºC
Battery Life: 10 years (based on 1 reading/minute)
Clock Accuracy (typical): ± 1 minute/year (-40ºC to 80ºC)
Operating Temperature: -20ºC to 80ºC
Maximum # Readings: 150,000 sets of readings
Memory: Continuous or Slate mode
Communication Speed: 9600 bps, 57,000 bps with USB
Com Interface: Optical high-speed: USB, SDI-12
Size: 22 mm x 160 mm (7/8" x 6.3")
Weight: 166 grams (5.9 oz.)
Corrosion Resistance: Baked-on coating using polymerization technology (inside and out)
and superior corrosion resistant Hastelloy pressure sensor
Wetted Materials: Delrin®, Viton®, 316L Stainless Steel, Hastelloy, Regulator approved
PFAS-free PTFE
Sampling Modes: Linear, Event & User-Selectable Schedule with Repeat Mode,
Future Start, Future Stop, Real Time View
Measurement Rates: 0.125 second to 99 hours
Barometric Compensation: High accuracy, air-only, Barologger
Note: The Model number refers to the depth of submergence below water level that the pressure sensor can
withstand. i.e.: The Levelogger 5, which is available in M5, M10, M20, M30, M100, and M200 ranges has actual water
level ranges of 5 m (16.40 ft), 10 m (32.80 ft), 20 m (65.60 ft), 30 m (98.40 ft), 100 m (328.0 ft), and 200 m (656.2 ft),
respectively.

Levelogger Series User Guide
Page 7
1.1.2 Barologger 5
The Barologger 5 uses algorithms based on air pressure only. It measures and logs changes in atmospheric
pressure and temperature, which are then used to compensate water level readings recorded by a Levelogger.
Note: Solinst recommends using the most recent Barologger 5 firmware version with the latest Levelogger Software
version. See Section 2.3.
Barologger 5 Technical Specifications
Level Sensor: Piezoresistive Silicon with Hastelloy Sensor
Accuracy: ± 0.05 kPa
Resolution: 0.002% FS
Normalization: Automatic Temperature Compensation
Temp. Comp. Range: -10ºC to 50ºC
Temperature Sensor: Platinum Resistance Temperature Detector (RTD)
Temp. Sensor Accuracy: ± 0.05ºC
Temp. Sensor Resolution: 0.003ºC
Battery Life: 10 years (based on 1 reading/minute)
Clock Accuracy (typical): ±1 minute/year (-20ºC to 80ºC)
Operating Temperature: -20ºC to 80ºC
Maximum # Readings: 150,000 sets of readings
Memory: Continuous or Slate mode
Communication Speed: 9600 bps, 57,600 bps with USB
Com Interface: Optical high-speed: USB, SDI-12
Size: 22 mm x 160 mm (7/8”x 6.3” )
Weight: 166 grams (5.9 oz.)
Corrosion Resistance: Baked-on coating using polymerization technology (inside and out)
and superior corrosion resistant Hastelloy pressure sensor
Sampling Modes: Linear, Event & User-Selectable Schedule with Repeat Mode,
Future Start, Future Stop, Real Time View
Measurement Rates: 0.125 second to 99 hours
Model Full Scale (FS) Accuracy Resolution
Barologger Air Only ±0.05 kPa 0.002% FS

Levelogger Series User Guide
Page 8
Levelogger 5 Junior Technical Specifications
Level Sensor: Piezoresistive Silicon with Hastelloy Sensor
Ranges: 5, 10 m
Accuracy: ± 0.1% FS
Resolution: 0.02% FS, 0.01% FS
Normalization: Automatic Temperature Compensation
Temp Comp. Range: 0ºC to 40ºC
Temperature Sensor: Platinum Resistance Temperature Detector (RTD)
Accuracy: ± 0.1ºC
Resolution: 0.1ºC
Battery life: 5 years (based on 1 reading/minute)
Clock Accuracy (typical): ± 1 minute / year (-20ºC to 80ºC)
Operating Temperature: -20ºC to 80ºC
Memory: Continuous or Slate mode
Maximum # Readings 75,000 sets of readings
Com Interface: Optical high-speed: USB, SDI-12
Communication Speed: 9600 bps, 57,600 bps with USB
Size: 22 mm x 160 mm (7/8" x 6.3")
Weight: 166 grams (5.9 oz)
Wetted Materials: Delrin, Viton, 316L Stainless Steel, Hastelloy
Sampling Mode: Linear, Future Start, Real Time View
Measurement Rates: 0.5 seconds to 99 hours
Barometric Compensation: High accuracy, air-only, Barologger
Models Full Scale (FS) Accuracy Resolution
M5 5 m (16.4 ft.) ± 0.6 cm (0.020 ft.) 0.02% FS
M10 10 m (32.8 ft.) ± 1.0 cm (0.032 ft.) 0.01% FS
1.1.3 Levelogger 5 Junior
The Levelogger 5 Junior provides an inexpensive alternative for measuring groundwater and surface water
levels and temperature.
Note: Solinst recommends using the most recent Levelogger 5 Junior firmware version with the latest Levelogger
Software version. See Section 2.3.

Levelogger Series User Guide
Page 9
Levelogger 5 LTC Technical Specifications
Level Sensor: Piezoresistive Silicon Pressure Sensor
Ranges: 5, 10, 20, 30, 100, and 200 m
Accuracy: ± 0.05% FS
Resolution: 0.001% FS, 0.0006% FS
Normalization: Automatic Temperature Compensation
Temp Comp. Range: 0ºC to 50ºC
Temperature Sensor: Platinum Resistance Temperature Detector (RTD)
Accuracy: ± 0.05ºC
Resolution: 0.003ºC
Conductivity Sensor: 4-Electrode Platinum
Full Range: 0 to 100,000 µS/cm
Calibrated Range: 50 to 80,000 µS/cm
Accuracy: ±1% 5,000 µS/cm - 80,000 µS/cm;
greater of ±2% or 15 µS/cm from 50 µS/cm - 5,000 µS/cm
Resolution: ± 0.1 µS/cm
Normalization: Specific Conductance normalized to 25ºC for full range
User Calibration Points: 1413, 5000, 12,880, 80,000 µS
Battery Life: 8 years (based on 1 reading every 5 minutes)
Clock Accuracy (typical): ± 1 minute / year
Operating Temperature: -20ºC to 80ºC
Memory: Continuous or Slate Mode
Maximum Readings: 100,000 sets of readings
Communication Speed: 9600 bps, 57,600 bps with USB
Com Interface: Optical high-speed: USB, SDI-12
Size: 22 mm x 208 mm (7/8" x 8.2")
Weight: 6.9 oz (197 g)
Corrosion Resistance: Baked-on coating using polymerization technology (inside and out)
and superior corrosion resistant Hastelloy pressure sensor
Wetted Materials: Delrin, Viton, 316L Stainless Steel, Hastelloy, Platinum, Regulator
approved PFAS-free PTFE
Sampling Mode: Linear, Event & User-Selectable Schedule with Repeat Mode,
Future Start, Future Stop, Real Time View
Measurement Rates: 2 seconds to 99 hours
Barometric Compensation: High accuracy, air-only, Barologger
1.1.4 Levelogger 5 LTC
The Levelogger 5 LTC provides an accurate and convenient method to measure water level, temperature and
conductivity all in one probe.
Note: Solinst recommends using the most recent Levelogger 5 LTC firmware version with the latest Levelogger
Software version. See Section 2.3.
Models Full Scale Accuracy Resolution
M5 C80 5 m (16.4 ft.) ± 0.3 cm (0.010 ft.) 0.001% FS
M10 C80 10 m (32.8 ft.) ± 0.5 cm (0.016 ft.) 0.0006% FS
M20 C80 20 m (65.6 ft.) ± 1 cm (0.032 ft.) 0.0006% FS
M30 C80 30 m (98.4 ft.) ± 1.5 cm (0.064 ft.) 0.0006% FS
M100 C80 100 m (328.1 ft.) ± 5 cm (0.164 ft.) 0.0006% FS
M200 C80 200 m (656.2 ft.) ± 10 cm (0.328 ft.) 0.0006% FS

Levelogger Series User Guide
Page 10
1.1.5 Rainlogger 5
The Rainlogger 5 is designed for use with most standard tipping-bucket rain gauges. It records each tip time
from the tipping-bucket, and outputs the amount of rainfall per programmed time period based on rainfall
calibration constant shown on the tipping-bucket.
Note: Solinst recommends using the most recent Rainlogger 5 firmware version with the latest Levelogger Software
version. See Section 2.3.
Rainlogger 5 Technical Specifications
Battery Life: 10 years (logging 2 parameters/10 minutes)
Clock Accuracy (typical): ± 1 minute/year
Operating Temperature: -20˚C to 80˚C
Maximum # Readings: Up to 100,000 tip times
Memory: Continuous or Slate mode
Com Interface: Optical high-speed: USB, SDI-12
Communication Speed: 9600 bps, 57,600 bps with USB
Measurement: Records each tip by the tipping-bucket rain gauge and outputs
the amount of rainfall
Sampling Mode: Event Based, Future Start, Real TIme View
Size: 22 mm x 160 mm (7/8" x 6.3")
Weight: 44 grams (1.6 oz)
Materials: ABS, Delrin, Viton
Tipping-Bucket
Connector Cable

Levelogger Series User Guide
Page 11
Levelogger Edge Technical Specifications
Level Sensor: Piezoresistive Silicon with Hastelloy Sensor
Ranges: 5, 10, 20, 30, 100, 200 m
Accuracy: ± 0.05% FS
Resolution: 0.001% FS to 0.0006% FS
Normalization: Automatic Temperature Compensation
Temp. Comp. Range: 0ºC to 50ºC
Temperature Sensor: Platinum Resistance Temperature Detector (RTD)
Temp. Sensor Accuracy: ± 0.05ºC
Temp. Sensor Resolution: 0.003ºC
Battery Life: 10 years (based on 1 reading/minute)
Clock Accuracy (typical): ± 1 minute/year (-20ºC to 80ºC)
Operating Temperature: -20ºC to 80ºC
Maximum # Readings: 40,000 sets of readings
Memory: Continuous or Slate mode
Communication Speed: 9600 bps, 38,400 bps with USB optical reader
Com Interface: Optical Infra-red: USB, RS-232, SDI-12
Size: 22 mm x 159 mm (7/8" x 6.25")
Weight: 129 grams (4.5 oz.)
Corrosion Resistance: Titanium based PVD coated body and superior corrosion resistant
Hastelloy sensor
Other Wetted Materials: Delrin, Viton, 316L Stainless Steel
Sampling Modes: Linear, Event & User-Selectable Schedule with Repeat Mode,
Future Start, Future Stop, Real Time View
Measurement Rates: 0.125 second to 99 hours
Barometric Compensation: High accuracy, air-only, Barologger Edge
1.1.6 Levelogger Edge
The Levelogger Edge is an absolute (non-vented) datalogger, 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.
Note: Solinst recommends using the most recent Levelogger Edge firmware version with the latest Levelogger
Software version. See Section 2.3.
Models Full Scale Accuracy Resolution
M5 5 m (16.4 ft.) ± 0.3 cm (0.010 ft.) 0.001% FS
M10 10 m (32.8 ft.) ± 0.5 cm (0.016 ft.) 0.0006% FS
M20 20 m (65.6 ft.) ± 1 cm (0.032 ft.) 0.0006% FS
M30 30 m (98.4 ft.) ± 1.5 cm (0.064 ft.) 0.0006% FS
M100 100 m (328.1 ft.) ± 5 cm (0.164 ft.) 0.0006% FS
M200 200 m (656.2 ft.) ± 10 cm (0.328 ft.) 0.0006% FS
For “5” series loggers, see “3001 5 Series Loggers.ai”

Levelogger Series User Guide
Page 12
Barologger Edge Technical Specifications
Level Sensor: Piezoresistive Silicon with Hastelloy Sensor
Accuracy: ± 0.05 kPa
Resolution: 0.002% FS
Normalization: Automatic Temperature Compensation
Temp. Comp. Range: -10ºC to 50ºC
Temperature Sensor: Platinum Resistance Temperature Detector (RTD)
Temp. Sensor Accuracy: ± 0.05ºC
Temp. Sensor Resolution: 0.003ºC
Battery Life: 10 years (based on 1 reading/minute)
Clock Accuracy (typical): ±1 minute/year (-20ºC to 80ºC)
Operating Temperature: -20ºC to 80ºC
Maximum # Readings: 40,000 sets of readings
Memory: Continuous or Slate mode
Communication Speed: 9600 bps, 38,400 bps with USB optical reader
Com Interface: Optical Infra-red: USB, RS-232, SDI-12
Size: 22 mm x 159 mm (7/8" x 6.25")
Weight: 129 grams (4.5 oz.)
Corrosion Resistance: Titanium based PVD coated body and superior corrosion resistant
Hastelloy sensor
Other Wetted Materials: Delrin, Viton, 316L Stainless Steel
Sampling Modes: Linear, Event & User-Selectable Schedule with Repeat Mode,
Future Start, Future Stop, Real Time View
Measurement Rates: 0.125 second to 99 hours
1.1.7 Barologger Edge
The Barologger Edge uses algorithms based on air pressure only. It measures and logs changes in atmospheric
pressure and temperature, which are then used to compensate water level readings recorded by a Levelogger.
Note: Solinst recommends using the most recent Barologger Edge firmware version with the latest Levelogger
Software version. See Section 2.3.
Model Full Scale (FS) Accuracy Resolution
Barologger (M1.5) Air Only ±0.05 kPa 0.002% FS
For “5” series loggers, see “3001 5 Series Loggers.ai”

Levelogger Series User Guide
Page 13
Levelogger Junior Edge Technical Specifications
Level Sensor: Piezoresistive Silicon with Hastelloy Sensor
Ranges: 5, 10 m
Accuracy: ± 0.1% FS
Resolution: 0.02% FS to 0.01% FS
Normalization: Automatic Temperature Compensation
Temp Comp. Range: 0ºC to 40ºC
Temperature Sensor: Platinum Resistance Temperature Detector (RTD)
Accuracy: ± 0.1ºC
Resolution: 0.1ºC
Battery life: 5 years (based on 1 reading/minute)
Clock Accuracy (typical): ± 1 minute / year (-20ºC to 80ºC)
Operating Temperature: -20ºC to 80ºC
Memory: Continuous or Slate mode
Maximum # Readings 40,000 sets of readings
Com Interface: Optical Infra-red: USB, RS-232, SDI-12
Communication Speed: 9600 bps
Size: 22 mm x 142 mm (7/8" x 5.6")
Weight: 119 grams (4.2 oz)
Wetted Materials: Delrin®, Viton®, 316L Stainless Steel, Hastelloy
Sampling Mode: Linear, Future Start, Real Time View
Measurement Rates: 0.5 seconds to 99 hours
Barometric Compensation: High accuracy, air-only, Barologger Edge
1.1.8 Levelogger Junior Edge
The Levelogger Junior Edge provides an inexpensive alternative for measuring groundwater and surface
water levels and temperature.
Note: Solinst recommends using the most recent Levelogger Junior Edge firmware version with the latest
Levelogger Software version. See Section 2.3.
Models Full Scale (FS) Accuracy Resolution
M5 5 m (16.4 ft.) ± 0.6 cm (0.020 ft.) 0.02% FS
M10 10 m (32.8 ft.) ± 1.0 cm (0.032 ft.) 0.01% FS
For “5” series loggers, see “3001 5 Series Loggers.ai”

Levelogger Series User Guide
Page 14
1.1.9 LTC Levelogger Edge
The LTC Levelogger Edge provides an accurate and convenient method to measure water level, temperature
and conductivity all in one probe.
Note: Solinst recommends using the most recent LTC Levelogger Edge firmware version with the latest Levelogger
Software version. See Section 2.3.
LTC Levelogger Edge Technical Specifications
Level Sensor: Piezoresistive Silicon with Hastelloy Sensor
Ranges: 15, 10, 20, 30, 100, and 200 m
Accuracy: ± 0.05% FS
Resolution: 0.001% FS to 0.0006% FS
Normalization: Automatic Temperature Compensation
Temp Comp. Range: 0ºC to 50ºC
Temperature Sensor: Platinum Resistance Temperature Detector (RTD)
Accuracy: ± 0.05ºC
Resolution: 0.003ºC
Conductivity Sensor: 4-Electrode Platinum
Full Range: 0 to 100,000 µS/cm
Calibrated Range: 50 to 80,000 µS/cm
Accuracy: ±1% 5,000 µS/cm - 80,000 µS/cm; greater of ±2% or 10 µS/cm from
50 µS/cm - 5,000 µS/cm
Resolution: ± 0.1 µS/cm
Normalization: Specific Conductance normalized to 25ºC for full range
User Calibration Points: 1413, 5000, 12,880, 80,000 µS
Battery Life: 8 years (based on 1 reading every 5 minutes)
Clock Accuracy (typical): ± 1 minute / year
Operating Temperature: -20ºC to 80ºC
Memory: Continuous or Slate Mode
Maximum # Readings: 27,000 sets of readings
Communication Speed: 9600 bps, 38,400 bps with USB optical reader
Com Interface: Optical Infrared: USB, RS-232, SDI-12
Size: 22 mm x 190 mm (7/8" x 7.5")
Weight: 200 g (7.05 oz.)
Corrosion Resistance: Titanium ceramic PVD coated body and superior corrosion
resistant Hastelloy pressure sensor
Other Wetted Materials: Hastelloy, Delrin®, Viton®, Platinum
Sampling Mode: Linear, Event & User-Selectable Schedule with Repeat Mode,
Future Start, Future Stop, Real Time View
Measurement Rates: 2 seconds to 99 hours
Barometric Compensation: High accuracy, air-only, Barologger
Models Full Scale Accuracy Resolution
M5 5 m (16.4 ft.) ± 0.3 cm (0.010 ft.) 0.001% FS
M10 10 m (32.8 ft.) ± 0.5 cm (0.016 ft.) 0.0006% FS
M20 20 m (65.6 ft.) ± 1 cm (0.032 ft.) 0.0006% FS
M30 30 m (98.4 ft.) ± 1.5 cm (0.064 ft.) 0.0006% FS
M100 100 m (328.1 ft.) ± 5 cm (0.164 ft.) 0.0006% FS
M200 200 m (656.2 ft.) ± 10 cm (0.328 ft.) 0.0006% FS

Levelogger Series User Guide
Page 15
1.1.10 Rainlogger Edge
The Rainlogger Edge is designed for use with most standard tipping-bucket rain gauges. It records each tip
time from the tipping-bucket, and outputs the amount of rainfall per programmed time period (based on
rainfall calibration constant).
Note: Solinst recommends using the most recent Rainlogger Edge firmware version with the latest Levelogger
Software version. See Section 2.3.
Rainlogger Edge Technical Specifications
Battery Life: 10 years (logging 2 parameters/10 minutes)
Clock Accuracy (typical): ± 1 minute/year
Operating Temperature: -20˚C to 80˚C
Maximum # Readings: Up to 60,000 tip times
Memory: Continuous or Slate mode
Communication: Optical infra-red: USB, RS-232, SDI-12
Measurement: Records each tip by the tipping-bucket rain gauge and outputs
the amount of rainfall
Sampling Mode: Event Based, Future Start, Real TIme View
Size: 22 mm x 140 mm (7/8" x 5.5")
Weight: 44 grams (1.6 oz)
Materials:ABS, Delrin®, Viton®
For “5” series loggers, see “3001 5 Series Loggers.ai”

Levelogger Series User Guide
Page 16
1.2 Measurement Parameters
1.2.1 Level
Figure 1-1
Levelogger Measurement Fundamentals
A = L - B
All Leveloggers measure total (absolute) pressure. When submerged,
the Levelogger is recording the combination of barometric pressure and
water pressure. The actual pressure of just water (A)above the sensor is
obtained by subtracting barometric pressure (B)from the total pressure (L)
(see Figure 1-1).
The best method to compensate for barometric pressure is to employ
a Barologger above the water level, to obtain records of barometric
pressure. The Levelogger Software includes a Data Wizard, which guides
you 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 Leveloggers are automatically
temperature-compensated.
A= Actual water column height
B= Barometric pressure
L= Levelogger total pressure readings
D= Depth to water level, below reference datum
Leveloggers measure the pressure of air plus water column above their
sensor (zero point). To adjust the level readings after data collection,
for example to water level depths below top of casing (D), refer to the
Advanced options within the software Data Wizard.
Note: The Levelogger Gold series convert pressure readings to the water level
equivalent above the datalogger’s pressure zero point of 950 cm (31.17 ft). The
Levelogger 5 and Edge Series have no zero point offset. As such, water level
data will appear different, although measuring the same amount of pressure
(i.e. Levelogger 5 data will appear to be reading 950 cm (31.17 ft) higher
than a Levelogger Gold). Barometric Compensation using the Data Wizard,
automatically considers this zero point offset difference when compensating a
mix of models.
1.2.1.1 Pressure Calibration
The Levelogger 5 is calibrated against a range of set reference points to an accuracy of 3 decimal places.
During the calibration procedure, the Levelogger is fully submerged in a highly accurate water bath, until
conditions are stable. The pressure is then calibrated to six separate pressure points covering the entire range
of pressure to check for any non-linearity. The process is repeated again at two different temperatures to
check for temperature effects. Once done, the Levelogger is approved after all specifications for accuracy,
precision, stability and hysteresis have been met. The Levelogger should be calibrated for the life-time of the
instrument as long as it is used within its given technical specifications, in compatible monitoring environments
with routine inspections, and is not physically, chemically or thermally damaged.
1.2.2 Barometric Pressure
The Barologger 5 is designed for use in air only. It has a specific 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 and air temperature measurements, which are then synchronized to the
Levelogger. The Data Wizard in the Levelogger Software simplifies the adjustment of the level measurements
for barometric pressure changes, by generating a compensated data file using the synchronized data from all
Leveloggers on site and the site Barologger.

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1.2.3 Temperature
Leveloggers record temperature compensated water levels. Groundwater and surface water temperature
measurements are particularly important in situations where temperatures may fluctuate significantly, and
where its accuracy is important 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 0 to +50ºC for the Levelogger 5 and Levelogger 5 LTC, -10ºC to +50ºC for the Barologger 5, and
0 to +40ºC for the Levelogger 5 Junior. The Levelogger will record temperature in its thermal range of
-20 to +80ºC, but outside the range, compensation will be less accurate.
1.2.4 Conductivity
The Levelogger LTC models provide the added feature of electrical conductivity measurement; they measure
the actual conductivity at the current temperature. Conductivity measurement is particularly useful in
monitoring saltwater intrusion, surface water infiltration and mixing, as well as being an indicator of certain
pollutants and contaminant parameters. Conductivity is measured via a platinum 4-electrode sensor, which
produces highly stable and consistent readings. Conductivity calibration is performed by using up to 4 specific
calibration solution ranges, and the Calibration Wizard in the Levelogger Windows Software.
The Data Wizard allows you to convert conductivity readings to Specific Conductance (at 25ºC), Salinity
expressed in Practical Salinity Units (PSU), or TDS. A Practical Salinity Unit (PSU) is a dimensionless descriptor
for the Practical Salinity Scale (PSS). The PSS defines salinity as the ratio of a water sample's conductivity
to that of a standard KCL solution. The Data Wizard uses the equation given in the UNESCO Technical
Paper "Algorithms for computation of fundamental properties of seawater", to convert Conductivity readings
to Salinity. For more information, see: Fofonoff, N. P. and R.C. Millard, Jr. Algorithms for computation
of fundamental properties of seawater, UNESCO, Tech. Pap. Mar. Sci.,44. The Data Wizard uses the
known equation “TDS=keEC” to convert Conductivity readings to TDS, where TDS is expressed in mg/L
or ppm and EC is the electrical conductivity in µS/cm at 25˚C. Correlation factor ke is between 0.55 -
0.8. For more information, see: Al Dahaan, S.A.M., Al-Ansari, N. and Knutsson, S. (2016) Influence of
Groundwater Hypothetical Salts on Electrical Conductivity Total Dissolved Solids. Engineering, 8, 823-830.
http://dx.doi.org/10.4236/eng.2016.811074
Note: For every degree change in temperature, there is approximately a 2% change in conductivity. To convert raw
conductivity measurements to Specific Conductance measurements, you can use the following equation:
Specific Conductance = Conductivity / (1 + 0.02 * (temp(C) - 25))
You can also perform this calculation automatically using the Data Wizard.
1.2.4.1 Calibration of the Conductivity Sensor
The conductivity sensor of a LTC Levelogger is a highly sensitive device requiring regular calibration by the
user. The conductivity calibration frequency is dependent on the water quality of the Levelogger’s monitoring
environment. To determine whether a LTC Levelogger should be re-calibrated, test the unit in a solution
with a known electrical conductivity value at a reference temperature. In Real Time View, observe current
readings by using the Read Now function. If this reading varies from the known Specific Conductance of the
solution by greater than the stated accuracy of the conductivity measurement, the unit should be re-calibrated
using the Conductivity Calibration Wizard procedure outlined in Section 6. As a minimum, calibrate your
LTC Levelogger at least twice a year. Ensure that a conductivity calibration is performed when the
LTC Levelogger is being set up for its initial use and after long periods of dry storage.
1.2.5 Total Rainfall
Solinst Rainloggers are designed to record the number of tips of an external tipping-bucket rain gauge, and
output the amount of rainfall per tip.

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2 Communicating with Solinst Dataloggers
Levelogger Software is Windows based, and is therefore used with a desktop or laptop PC. Dataloggers
connect to a PC with an Optical Reader or PC Interface Cable. The Optical Readers and PC Interface Cable
use an optical data reader/port connected to the datalogger and a USB (or RS-232 Serial Com Port) to
transfer information between the datalogger and computer.
Note: There is also the option to communicate with a DataGrabber 5 or Levelogger 5 App Interface (see separate
User Guides).
2.1 Optical Readers
If you are programming 5 Series dataloggers in the office, the Optical Reader most commonly used for
communication with a PC is a Desktop Reader 5.
Desktop Reader 5
Figure 2-1 Levelogger 5 Connected to a PC Using a Desktop Reader 5
Desktop Reader 5
Note: Always plug in the USB device before starting the Software. See Section 4.1.2 for more information on
communication with USB ports.
If you have deployed your Levelogger 5 in the field using wireline or cord (not on a L5 Direct Read Cable), a
Field Reader 5 is most commonly used for communication with a PC.
Field Reader 5
Figure 2-2 Levelogger 5 Connected to a PC Using a Field Reader 5
Field Reader 5

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You can also use an older style Optical Reader with an L5–Edge DRC Adaptor to communicate with a
5 Series datalogger.
Note: The L5–Edge DRC Adaptor contains a small, long-lasting battery (not user-replaceable). The Adaptor should
always be stored above freezing temperatures and with caps on to prevent unnecessary battery drainage and
protect the optical eyes.
Note: The L5–Edge DRC Adaptor also allows the connection of a Levelogger 5 to an older style Direct Read Cable.
See Section 10.1.1.2.
Older Style
Optical Reader
and Adaptor
Figure 2-3 Levelogger 5 Connected to a PC Using an Older Style Optical Reader and L5–Edge DRC Adaptor
L5–Edge DRC Adaptor
Older Style
Optical Reader
If you are programming an Edge or Gold Series datalogger, you will require an Edge–L5 DRC Adaptor to
connect to a Desktop Reader 5 or Field Reader 5, or you can use an older style Optical Reader.
Note: The Edge–L5 DRC Adaptor contains a small, long-lasting battery (not user-replaceable). The Adaptor should
always be stored above freezing temperatures and with caps on to prevent unnecessary battery drainage and
protect the optical eyes.
Note: The Edge–L5 DRC Adaptor also allows the connection of a Levelogger Edge or Gold to a L5 Direct Read Cable.
See Section 10.1.1.2.
Note: When connecting an Edge–L5 DRC Adaptor, only turn the coupling on the Adaptor and hold the
datalogger still.
Desktop Reader 5
and Adaptor
Figure 2-4 Levelogger Edge Connected to a PC Using an Edge–L5 DRC Adaptor and Desktop Reader 5
Edge–L5 DRC
Adaptor

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Older Style
Optical Reader
Figure 2-6 Levelogger Edge Connected to a PC Using an Older Style Optical Reader
Field Reader 5
and Adaptor
Figure 2-5 Levelogger Edge Connected to a PC Using an Edge–L5 DRC Adaptor and Field Reader 5
Edge–L5 DRC
Adaptor