Description
The LeveLine-EWS is an Early flood Warning System that includes the Aquatel telemetry device with a 10m Leveline-Mini Water Level and Temperature sensors. The Leveline-Mini is a reliable water depth sensor with an Absolute pressure sensor that is wired back to the Aquatel unit to record the depth readings and provide compensation for the current barometric pressure readings. The Aquatel telemetry device only require a SIM card to connect to the local mobile phone network and can store up to 50 numbers in its phone book to raise alarms on eight programmable alert levels. The Aquatel unit can also receive an SMS message and return the current readings to the sender, even those not in the unit.
The main power supply for the system is either one or two pairs of primary Lithium-thionyl chloride 3.6V D cells, or two pairs of alkaline 1.5V D cells (international size reference: UM1/R20/D). If you are planning to deploy the AquaTel unit in temperatures below 5°C, you should always use Lithium batteries. Two Lithium batteries will provide a slightly longer life than four alkaline batteries, especially in extremes of temperature, and four will provide double the life. The four Lithium batteries should last over 12 months with default logging rates and reasonable signal strength. Alkaline batteries should last 4-6 months, but may be half that in Winter.
Features
- Low cost of ownership.
- System consists of the AquaTel telemetry unit and the small LeveLine-Mini, suspended on a 10m rugged cable.
- Water level measurements are logged at regular intervals.
- Real time alerts can be sent to a number of contacts stored in the AquaTel’s phone book.
- Fully set up the device using simple SMS commands.
- Can provide the whole community with the phone number for the AquaTel, so anyone can text the device to get instant level readings.
Specifications
SENSOR | |
---|---|
Type / Material | Piezoresistive ceramic |
Range | 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 |
TEMPERATURE SENSOR | |
Accuracy & resolution | ±0.1 °C, 0.01 °C |
Units of measure | Celsius (Fahrenheit available in Levelink) |
WARRANTY | |
Standard | 2 years |
Extended | Options Available |