LeveLine Range

Water level - Temperature - Conductivity - Salinity

The LeveLine is a self-contained data-logging device that records water level and temperature continuously during its deployment. It features a highly accurate pressure sensor and a temperature thermistor. LeveLine comes with a confident 5-year warranty.

In addition to the LeveLine datalogger-probe, the LeveLine range includes three other products:

LeveLine-Mini, a water level and temperature sensor that can be connected to a compatible datalogging, control or telemetry system;
LeveLine-CTD: a water level, temperature and conductivity sensor with integrated datalogger, which also calculates water salinity in real time;
LeveLine-Mini-CTD: adds conductivity and salinity measurements to the LeveLine-Mini.

These four probes from the LeveLine range can be deployed to measure absolute pressure (ABS, non-vented sensor) or relative pressure (GAUGE, vented sensor) at depths of up to 100 meters.
A fifth probe, the LeveLine-Baro, is used to capture changes in atmospheric pressure that are useful to compensate measurements from multiple absolute LeveLine loggers to give highly accurate level data.

The main features of this range of probes are:

a rugged titanium body for corrosion resistance
high-precision sensors for different depths
various configuration and communication options (SDI-12, Modbus, USB cable, telemetry, QuickDeploy key...)
an internal lithium battery providing up to 10 years of autonomy (excluding Mini models)
memory for up to 500,000 data (excluding Mini models)

Applications

The LeveLine range of water level sensors and water quality probes is suitable for a wide variety of applications:

Surface water: lakes, rivers, coastal waters, reservoirs
Groundwater: characterization of "aquifer" lakes
Drilling, observation wells, pumping tests, piezometers
Flood monitoring
Mining operations
Coastal applications: sea level, saltwater intrusion, tide monitoring
Other applications (LeveLine CTD device): tracer tests, routine chemical measurements...

Main benefits

Robust, reliable equipment, highest quality to efficiently meet the required standards
Can be used in harsh environments, thanks to titanium construction
High accuracy for all water level monitoring applications, whatever the environment
Low maintenance thanks to lifetime factory calibration of all equipment
Modbus (RS485) and SDI-12 digital communications, enabling direct connection to telemetry systems, SCADA systems and various dataloggers
A wide range of accessories for a variety of applications:
— LeveLine USB PC-KIT and LeveLink software for configuring, calibrating, reading, displaying and exporting measurements from a PC
— GPS LeveLine Meter: portable system for configuration, geolocation, measurement acquisition and calibration
— BlueLink - Bluetooth module: system for configuring LeveLine probes and reading measurements from a wireless terminal (cell phone, etc.)
— QuickDeploy key: to start recording and check memory and battery levels
— Aquatel telemetry: 4G cellular telemetry device with GPS location
— LeveLine-EWS: flood warning system
LeveLine Meter, BlueLink and Aquatel equipment incorporate an atmospheric pressure sensor for barometric data compensations.

Specifications

GENERAL

Temperature ranges: storage: -40/80°C (-40/176°F), operation: -20/80°C (-4/176°F)
Diameter: 22.2mm (22mm if CTD)
Length: 87mm or 186mm depending on model (146mm or 260mm if CTD)
Weight: 120/160g depending on model (210g or 250g if CTD)
Materials: titanium body, Delrin tip (LeveLine-Mini: carbon body)
Communication options: Modbus/RS485, SDI-12, Aquaread proprietary protocol
Internal power supply: 3.6V lithium battery, up to 10 years (excluding Mini models)
External power supply: 6/24 VDC

MEMORY (excluding Mini models)

Capacity: 150,000 (LeveLine-Baro), 500,000 (LeveLine), recorded measurements
Recording types: fixed, event-controlled and user-selectable
with programmed start, programmed stop,
deployment start and real-time visualization
Configurable recording frequency: up to 1/sec, depending on model

LEVEL MEASUREMENT

Type/material: piezoresistive, ceramic
Range (absolute pressure): 10.0m (32.8ft), 20.0m (65.6ft), 50.0m (164ft), 100m (326ft)
Accuracy: ± 0.05% FS, ± 0.1 FS (Baro)
Resolution: 0.002% FS or 1mm (whichever is greater), 0.1mBar (Baro)

TEMPERATURE MEASUREMENT