The LHM/LHC range of probe-loggers offers an integrated, easy to implement solution, for continuous or temporary hydrometric monitoring of boreholes, as well as streams and rivers.
The unique characteristics of this range of probes with integrated data loggers is that it offers the following 5 useful measurements, in a unique and compact product: water pressure, air pressure, water level, water temperature, air temperature.
The LHM model works in manual mode (linked through USB PC/logger).
For a model with telemetry, which allows for automatic data transmission through cellular communication, see the LHC model.
Applications
- Level and temperature monitoring in boreholes, piezometers, watercourses...
- Isolated sites with no power supply
Main benefits
- Compact and easy to implement
- Direct integration in piezometers and wellheads (discrete and fast installation)
- Integrated air pressure compensation and direct water level calculation
- High accuracy of digital pressure sensors
- Ease of data reading since the immersed sensors can remain in place while the data logger is on the outside and directly accessible to the operators.
- Ease of battery change for the same reason as the batteries are in the data logger
- Battery life (up to 10 years)
Specifications
DATA LOGGER
- Capacity: >= 500,000 measurements
- Power supply: 6.0V 12.5Ah lithium battery user changeable
- Autonomy: > 10 years (1 measurement/hour, 1 transmission/week)
- Operating Temperatures: - 20°C to + 60°C
- Housing watertightness: IP67
- Material: Stainless steel 304
- Dimensions: L=403 mm (without antenna), ɸ=50/79 mm (body/head)
- Weight: 1490 g
- Micro USB port for PC connection
WATER PRESSURE SENSOR (SFP RANGE)
- Measuring ranges: 0 - 10m, 0 - 40m, 0 - 90m, 0 - 150m
- Accuracy: +/-0.05% of full scale
- Resolution: 1 mm
- Material: Stainless steel 316
TEMPERATURE SENSOR (INTEGRATED)
- Accuracy: +/-0.5°C
- Resolution: 0.1°C
AIR PRESSURE SENSOR (INTEGRATED)
- Accuracy: 0.1 mBar
Related products
- Installation accessories
