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Description
The LL-CTD-ABS-100 is a 100m water level, temperature, conductivity and salinity logger designed for long-term deployment in diverse aquatic environments, including harsh and saline conditions, thanks to its durable all-Titanium body and comes backed by a 5-year warranty. It precisely measures water levels up to 100m with a 50cm accuracy. The logger will also take conductivity (range 0-200,000 µS/cm), and salinity readings (range 0-70 PSU) with temperature (compensated across -20 to 80°C.
The LL-CTD-ABS-100 includes an integrated data logger, capable of storing 500,000 data points and powered by a 10-year lithium battery. The whole unit is housed within a 22 x 260mm all-Titanium body, ensuring resilience in demanding environments. Communication interfaces include SDI-12 and RS485 Modbus for retrieving data. The device is supported by LeveLink PC software for data processing and carries a 5-year warranty.
Features
- 0.05% FS accuracy for level.
- 1% of reading accuracy for conductivity and salinity.
- 500,000 data point memory.
- 10 Year Battery Life.
- Titanium Body.
- 5 Year Warranty.
- Included LeveLink PC Software for basic and advanced data compensation.
- SDI-12, RS485 Modbus direct out communications.
- 22mm x 260mm
- Vented option available.
Applications
- Saltwater Intrusion.
- Contaminant plume profiling.
- Tracer tests.
- Leachate monitoring.
- 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.
- Spot Measurements.
Specifications
| GENERAL | |
|---|---|
| Temperature ranges | Operational: -20-80°C, Storage: -40-80°C, Compensated: -20-80°C |
| Diameter | 22mm |
| Length | 260mm |
| Weight | 250g |
| Materials | Titanium body, Delrin nose cone |
| Output options | RS485 Modbus, SDI-12, Aquaread proprietary |
| Battery type & life | 3.6V Lithium, up to 10 years (Depending on logging rate) |
| External power | 6-24vDC |
| MEMORY & OUTPUT RATE | |
| Memory size | 8.0MB |
| Data records | 500,000 readings |
| Log types | Linear, Event & User-Selectable Schedule with Future Start, Future Stop, Deploy Start and Real Time View |
| Fastest Modbus output rate | 1 per second |
| Fastest SDI-12 output rate | 1 per second |
| Real-time clock | Accurate to 1 second/24-hr period (± 6 minutes/year) |
| SENSOR | |
| Type / Material | Piezoresistive ceramic |
| Range (Absolute) | 100.0M (328 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 | 5 years |
| Extended | Options Available |
The LL-BARO is designed to record the atmospheric pressure data. The collected readings can be used for compensating readings collected by any of the Absolute Leveline sensors in a 10Km radius. Click the image on the left to open a new tab, if you want me information on this Barometric Pressure Logger.
