Description
The LL-MINI-CTD-GAUGE-010 is a 10m water level sensor with conductivity, temperature and salinity measurements. The sensor incorporates a vented piezoresistive sensor to monitor depth. This sensor does require a vent tube to the surface and actively compensated for barometric pressure readings. The sensor includes the same 4 ring stainless steel to measure conductivity and salinity measurements with an integral temperature sensor to provide temperature compensated values. This ensuring accurate readings across the full operational temperature range of -20 to +80°C. Users can select from a range of vented cables and AquaConn connectors.
The sensor housing is constructed from a carbon fibre and titanium composite. This material selection provides a high strength-to-weight ratio and enhanced corrosion resistance, critical for reliable long-term deployment in challenging environmental conditions, including saline solutions.
Features
- 0.05% FS accuracy.
- Carbon fibre and titanium body.
- 2 year warranty.
- SDI-12, RS485/MODBUS direct out communications.
- Can be connected to the AquaTel for complete remote monitoring system.
- Can be connected with the BlueLink adaptor for short-term monitoring.
- Vented option available
Applications
- Groundwater level monitoring, pump tests, slug tests etc.
- Stream, lake and reservoir water level measurement.
- Wetland and flood water monitoring.
- Coastal monitoring.
- Tank level measurement.
- Long term continuous monitoring in boreholes, surface water and seawater applications.
- Process applications.
- Flood warning systems.
Specifications
GENERAL | |
---|---|
Temperature ranges | Operational: -20-80°C, Storage: -40-80°C, Compensated: -20-80°C |
Diameter | 22mm |
Length | 146mm |
Weight | 210g |
Materials | Titanium body, Delrin nose cone |
Output options | Modbus/RS485, SDI-12, Aquaread proprietary |
External power | 6-24vDC |
OUTPUT RATE | |
Fastest Modbus output rate | 1 per second |
Fastest SDI-12 output rate | 1 per second |
SENSOR | |
Type / Material | Piezoresistive ceramic |
Range (Gauge) | 10.0M (32.8 ft) |
Maximum pressure | Max 2x range, Burst 2.5x range |
Accuracy (FS) | ±0.05% FS |
Resolution | 0.002% FS or 1mm whichever is greater |
Units of measure | Pressure: mbar (psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O), Level: m, ft, mm, cm and mm available in Levelink |
ELECTRICAL CONDUCTIVITY | |
Range | 0 – 200mS/cm (0 – 200,000μS/cm) |
Resolution | 1μS |
Accuracy | ±1% reading or ±1μS whichever is greater |
SALINITY | |
Range | 0-70 PSU / 0-70 ppt (g/Kg) |
Resolution | 0.01PSU / 0.01 ppt |
Accuracy | ±1% reading or ±0.1 unit, if greater |
TEMPERATURE SENSOR | |
Accuracy & resolution | ±0.1°C, 0.01°C |
Units of measure | Celsius (fahrenheit available in Levelink) |
WARRANTY | |
Standard | 2 years on all LeveLine-Mini versions |
Extended | Options Available |