Solinst

3001 Levelogger 6 LTC

Water level, temperature and conductivity datalogger with a 4-electrode platinum conductivity sensor and an 8-year battery.

Conductivity calibrated range of 50 - 80,000 µS/cm with autoranging
±0.05% FS level accuracy with a Hastelloy® pressure sensor
100,000 sets of data plus a dedicated 15,000-set backup memory, in a 22 mm x 208 mm (7/8" x 8.2") housing

Quantity

Overview

The Levelogger 6 LTC logs water level, temperature and conductivity. It combines a datalogger, 8-year battery, Hastelloy® pressure sensor, temperature detector and 4-electrode platinum conductivity sensor within a small waterproof housing, 22 mm x 208 mm (7/8" x 8.2"). The minimal-maintenance, sealed Levelogger 6 LTC is simple to clean and calibrate, even in the field.

Typical applications

Salt water intrusion and soil salination monitoring
Plume remediation monitoring and studies
Leachate monitoring at landfills, mine tailings, waste disposal storage sites, and more
Agricultural and stormwater runoff monitoring
Creating a historical database for potable water supply monitoring
Tracer tests

Key Features

Logs water level, temperature and conductivity
4-electrode platinum conductivity sensor with autoranging
Twice the previous PC interface download speed using the Mk3 USB-C PC Interface Cable
Enhanced electronics: increased stability, sensitivity and accuracy across temperature ranges
Large memory: 100,000 sets of data, with dedicated backup memory for 15,000 sets
Baked-on coating using polymerization technology and double o-ring seals
Improved time tracking: stores time stamps and supports multiple time zone displays
Software Calibration and Data Wizards for conductivity calibration and barometric compensation
Data Wizard converts conductivity readings to Specific Conductance (@ 25°C)
Real Time View of live water level, conductivity and temperature readings
SDI-12 and MODBUS compatible using an Interface Cable

Benefits

Faster Downloads: the Mk3 USB-C PC Interface Cable gives twice the previous PC interface download speed.
Enhanced Electronics: increased stability, sensitivity and accuracy across temperature ranges.
Large Memory: stores 100,000 sets of data, with dedicated backup memory for 15,000 sets.
Superior Protection in Harsh Conditions: a baked-on coating using polymerization technology and double o-ring seals protect against corrosion, abrasion, high temperatures and leaks.
Easy Calibration and Compensation: the Software Calibration and Data Wizards guide you through conductivity calibration and barometric compensation, and the sealed Levelogger 6 LTC is simple to clean and calibrate, even in the field.
Longer Deployments: the optional Biofoul Screen uses the natural anti-fouling characteristics of copper to lengthen the time a Levelogger 6 LTC can be deployed, reducing site visits and cleaning time.

Specifications

LEVEL SENSOR
Sensor	Piezoresistive silicon with Hastelloy® sensor
Ranges	5, 10, 20, 30, 100 and 200 m
Accuracy	±0.05% FS
Resolution	0.001% FS to 0.0006% FS
Over-pressurization	2 times over-pressure without permanent damage
Units of measure	cm, m, ft, psi, kPa, bar, °C, °F
Normalization	Automatic temperature compensation
Temperature compensation range	0°C to 50°C

TEMPERATURE SENSOR
Sensor	Platinum Resistance Temperature Detector (RTD)
Accuracy	±0.05°C
Resolution	0.003°C

CONDUCTIVITY SENSOR
Sensor	4-electrode platinum, with autoranging
Full range	0 - 100,000 µS/cm
Calibrated range	50 - 80,000 µS/cm
Accuracy	±1%: 5,000 µS/cm - 80,000 µS/cm Greater of ±2% or 15 µS/cm: 50 µS/cm - 5,000 µS/cm
Resolution	0.1 µS/cm
Temperature compensation range	0°C - 50°C
Normalization	Specific Conductance @ 25°C

GENERAL
Battery life	8 years (1 reading every 5 minutes)
Clock accuracy (typical)	±1 minute/year (-20°C to 80°C)
Operating temperature	-20°C to 80°C
Size	22 mm x 208 mm (7/8" x 8.2")
Weight	200 g (7.05 oz)
Corrosion resistance	Baked-on coating using polymerization technology (inside and out)
Other wetted materials	Delrin®, Viton®, 316L stainless steel, Hastelloy®, PFAS-free polymerization coating, platinum coated sensors

DATA LOGGING
Maximum readings	100,000 sets of readings
Dedicated backup memory	15,000 sets of most recent readings
Memory mode	Slate or Continuous
Sampling modes	Linear, Event & User-Selectable Schedule with Repeat & Pause Modes, Future Start, Future Stop, Real-Time View
Measurement rates	2 seconds to 99 hours
Communication	Optical high-speed: 9600 bps; 57600 bps with USB Desktop/Field Reader; 19.2k baud with Mk3 USB-C PC Interface Cable SDI-12 and MODBUS compatible using an Interface Cable
Barometric compensation	Software Wizard and Barologger 6
Deployment	Direct read cables or wireline/cord suspension

MODELS
M5, C80	Full scale: 5 m (16.4 ft) Accuracy: ±0.3 cm (0.010 ft) Resolution: 0.001% FS
M10, C80	Full scale: 10 m (32.8 ft) Accuracy: ±0.5 cm (0.016 ft) Resolution: 0.0006% FS
M20, C80	Full scale: 20 m (65.6 ft) Accuracy: ±1 cm (0.033 ft) Resolution: 0.0006% FS
M30, C80	Full scale: 30 m (98.4 ft) Accuracy: ±1.5 cm (0.049 ft) Resolution: 0.0006% FS
M100, C80	Full scale: 100 m (328.1 ft) Accuracy: ±5 cm (0.164 ft) Resolution: 0.0006% FS
M200, C80	Full scale: 200 m (656.2 ft) Accuracy: ±10 cm (0.328 ft) Resolution: 0.0006% FS

OPTIONS AND ACCESSORIES
Biofoul Screen	Delrin® sleeve wrapped with copper wire; slips onto the sensor end of the Levelogger 6 LTC and is held in place by compression fit; reduces unwanted buildup of microorganisms, plants, algae, barnacles and mussels on the sensors
Mk3 USB-C PC Interface Cable	Twice the previous PC interface download speed (19.2k baud)
Levelogger App Interface	Bluetooth® connection to the Solinst Levelogger App on a smart device; start/stop, data downloading, linear and real-time sampling, future start/stop and GPS coordinates
Solinst Readout Unit (SRU)	Downloads data in the field
DataGrabber	USB data transfer device for downloading data in the field
LevelSender (Model 9500)	Cellular telemetry; sends data to the Solinst Cloud or via FTP to a location of your choice
SolSat (Model 9700)	Iridium satellite telemetry with built-in barometer, solar panel and weatherproof enclosure

Downloads

Levelogger 6 LTC Datasheet (EN)	DownloadLevelogger 6 LTC Datasheet (EN)
Levelogger 6 Series Quick Start Guide (EN)	DownloadLevelogger 6 Series Quick Start Guide (EN)