A quick introduction to the LeveLine-EWS system
This cost effective and extremely simple system requires no regular maintenance and no annual subscriptions. The water level sensor records changes in water level and temperature and will send SMS / email alerts when preset alert levels are reached. You can also send the device an SMS message requesting the current level so you can check the level at any time of day for added peace of mind.
The logging regime can be configured through SMS and Email messages using predefined commands or a complete settings email can be sent from the included PC application direct to the device. Daily logs are then sent direct to your email address and are automatically added to historical data in the PC application meaning you can see the historic trends over time.
Flood prevention may not be possible but with an early flood warning system you can help to alert your household / community / business of rising water levels giving you the chance to protect your assets from flood damage.
In recent years, the weather is becoming more erratic and less predictable. Many areas are suffering from regular flooding. The early flood warning system will give householders, business owners, and local authorities more warning before a flood so that they have more time to act. An early warning system could give you sufficient time to put measures in place to protect your property and possessions. For example, you could turn off your power and gas, move your car to higher ground, and ensure your most treasured possessions are stored above the highest possible flood line.
Can you spot the early warning system? It is both subtle and secure.
The LeveLine-EWS uses the LeveLine-Mini water level sensor to record small changes in the water level as well as temperature. The instrument constantly measures and records the water level and temperature using a highly sensitive pressure sensor and temperature thermistor, data is then stored in the AquaTelemetry unit between data uploads. The AquaTelemetry unit features a barometric pressure sensor to fully compensate the data recorded by the LeveLine-Mini against changes in air pressure allowing it to measure changes as small as 1cm.
There are many different applications where an early flood warning system can be beneficial, triggering warnings or calls to action.
Install a LeveLine-EWS on the bank of a river known for regular flooding:
Install a LeveLine-EWS in boreholes, often used for borehole water testing, to monitor groundwater levels:
Install the LeveLine-EWS at households that regularly get flooded:
Install the LeveLine-EWS in a basement or low-level garage liable to flooding:
| LEVELINE – (Abs & Gauge) | LEVELINE – BARO | LEVELINE- MINI | LeveLine-CTD | LeveLine-Mini-CTD | |
| Temperature ranges | Operational: -20-80° C (-4-176° F) Storage: -40-80° C (-40-176° F) Compensated: -20-80° C (-4-176° F) |
Operational: -20-80° C (-4-176° F) Storage: -40-80° C (-40-176° F) Compensated: -20-80° C (-4-176° F) |
Operational: -20-80° C (-4-176° F) Storage: -40-80° C (-40-176° F) Compensated: -20-80° C (-4-176° F) |
Operational: -20-80° C (-4-176° F) Storage: -40-80° C (-40-176° F) Compensated: -20-80° C (-4-176° F) |
Operational: -20-80° C (-4-176° F) Storage: -40-80° C (-40-176° F) Compensated: -20-80° C (-4-176° F) |
| Diameter | 22.2mm (0.875 in) | 22.2mm (0.875 in) | 22.2mm (0.875 in) | 22mm | 22mm |
| Length | 186mm (7.32 in) | 186mm (7.32 in) | 87mm (3.43 in) | 260mm | 146mm |
| Weight | 150g (5.3oz) | 160g (5.6oz) | 120g (4.2oz) | 250g | 210g |
| Materials | Titanium body, Delrin nose cone | Stainless Steel body, Delrin nose cone | Stainless Steel body, Delrin nose cone | Titanium body, Delrin nose cone | Titanium body, Delrin nose cone |
| Output options | Modbus/RS485, SDI-12, Aquaread proprietary | Modbus/RS485, SDI-12, Aquaread proprietary | Modbus/RS485, SDI-12, Aquaread proprietary | Modbus/RS485, SDI-12, Aquaread proprietary | Modbus/RS485, SDI-12, Aquaread proprietary |
| Battery type & life | 3.6V lithium; up to 10 years (see note 1) | 3.6V lithium; up to 10 years (see note 1) | N/A | 3.6V lithium; up to 10 years (see note 1) | N/A |
| External power | 6 – 30 VDC | 6 – 30 VDC | 6 – 30 VDC | 6 – 24 VDC | 6 – 24 VDC |
| LEVELINE – (Abs & Gauge) | LEVELINE – BARO | LEVELINE- MINI | LeveLine-CTD | LeveLine-Mini-CTD | |
| Size | 8.0 MB | 2.0 MB | N/A | 8.0 MB | N/A |
| Data records | 500,000 | 150,000 | N/A | 500,000 | N/A |
| Log types | Linear, Event & User-Selectable Schedule with Future Start, Future Stop, Deploy Start and Real Time View |
Linear, Event & User-Selectable Schedule with Future Start, Future Stop, Deploy Start and Real Time View |
N/A | Linear, Event & User-Selectable Schedule with Future Start, Future Stop, Deploy Start and Real Time View |
N/A |
| Fastest logging rate & Modbus rate | 10 per second | 1 per minute (logging) 5 per second (Modbus) |
10 per second (Modbus Rate) | 1 per second | 1 per second |
| Fastest SDI-12 output rate | 1 per second | 1 per second | 1 per second | 1 per second | 1 per second |
| Real-time clock | Accurate to 1 second/24-hr period (± 6 minutes/year) | Accurate to 1 second/24-hr period (± 6 minutes/year) | N/A | Accurate to 1 second/24-hr period (± 6 minutes/year) | N/A |
| LEVELINE – (Abs & Gauge) | LEVELINE – BARO | LEVELINE- MINI | LeveLine-CTD | LeveLine-Mini-CTD | |
| Type / Material | Piezoresistive; ceramic | Piezoresistive; ceramic | Piezoresistive; ceramic | Piezoresistive; ceramic | Piezoresistive; ceramic |
| Range (Absolute) | 10.0m (32.8 ft), 20.0m (65.6 ft), 50.0m (164 ft), 100m (326 ft), 200m (656 ft) | 0 to 16.7 psi; 0 to 1.15 bar | 10.0m (32.8 ft), 20.0m (65.6 ft), 50.0m (164 ft), 100m (326 ft), 200m (656 ft) | 10.0M (32.8 ft), 50.0M (164 ft), 20.0M (65.6 ft), 100M (326 ft) | 10.0M (32.8 ft), 50.0M (164 ft), 20.0M (65.6 ft), 100M (326 ft) |
| Range (Gauge) | 10.0m (32.8 ft), 20.0m (65.6 ft), 50.0m (164 ft), 100m (326 ft), 200m (656 ft) | N/A | N/A | 10.0M (32.8 ft), 50.0M (164 ft), 20.0M (65.6 ft), 100M (326 ft) | 10.0M (32.8 ft), 50.0M (164 ft), 20.0M (65.6 ft), 100M (326 ft) |
| Maximum pressure | Max 2x range, Burst 2.5x range | Max 2x range, Burst 2.5x range | Max 2x range, Burst 2.5x range | Max 2x range, Burst 2.5x range | Max 2x range, Burst 2.5x range |
| Accuracy (FS) (see note 3) | ±0.05% FS | ±0.1% FS | ±0.05% FS | ±0.05% FS | ±0.05% FS |
| Accuracy (FS) (See note 2) | ±0.1% FS | ±0.2% FS | ±0.1% FS | ±0.1% FS | ±0.1% FS |
| Resolution | 0.005% FS or 1mm whichever is greater | 0.1mb | 0.005% FS or 1mm whichever is greater | 0.002% FS or 1mm whichever is greater | 0.002% FS or 1mm whichever is greater |
| Units of measure | Pressure: psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O, Level: in, ft, mm, cm, m | Pressure: psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O | Pressure: psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O, Level: in, ft, mm, cm, m | Pressure: mbar (psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O, Level: in, ft, mm, cm and m available in LeveLink | Pressure: mbar (psi, kPa, bar, mbar, mmHg, inHg, cmH2O, inH2O, Level: in, ft, mm, cm and m available in LeveLink |
| LEVELINE – (Abs & Gauge) | LEVELINE – BARO | LEVELINE- MINI | LeveLine-CTD | LeveLine-Mini-CTD | |
| Range | N/A | N/A | N/A | 0 – 200mS/cm (0 – 200,000µS/cm) | 0 – 200mS/cm (0 – 200,000µS/cm) |
| Resolution | N/A | N/A | N/A | 1µS | 1µS |
| Accuracy | N/A | N/A | N/A | ± 1% reading or ±1µS whichever is greater (see note 5) | ± 1% reading or ±1µS whichever is greater (see note 5) |
| LEVELINE – (Abs & Gauge) | LEVELINE – BARO | LEVELINE- MINI | LeveLine-CTD | LeveLine-Mini-CTD | |
| Range | N/A | N/A | N/A | 0 – 70 PSU / 0 – 70 ppt (g/Kg) | 0 – 70 PSU / 0 – 70 ppt (g/Kg) |
| Resolution | N/A | N/A | N/A | 0.01PSU / 0.01 ppt | 0.01PSU / 0.01 ppt |
| Accuracy | N/A | N/A | N/A | ±1% reading or ± 0.1 unit if greater | ±1% reading or ± 0.1 unit if greater |
| LEVELINE – (Abs & Gauge) | LEVELINE – BARO | LEVELINE- MINI | LeveLine-CTD | LeveLine-Mini-CTD | |
| Accuracy Resolution | ±0.1° C 0.01° C |
±0.1° C 0.01° C |
±0.1° C 0.01° C |
±0.1° C; 0.01° C | ±0.1° C; 0.01° C |
| Units of measure | Celsius | Celsius | Celsius | Celsius (fahrenheit available in LeveLink) | Celsius (fahrenheit available in LeveLink) |
| LEVELINE – (Abs & Gauge) | LEVELINE – BARO | LEVELINE- MINI | LeveLine-CTD | LeveLine-Mini-CTD | |
| Standard | N/A | N/A | N/A | 2 years | 2 years |
| Extended | N/A | N/A | N/A | Options Available | Options Available |
Notes: 1) Dependent on logging rate. 2) Across factory-calibrated pressure range at a constant temperature. 3) Across factory-calibrated pressure and temperature ranges. 4) Readings calculated from EC and temperature values. 5) At the calibration point at 25°C
Hiện tại chưa có ý kiến đánh giá nào về sản phẩm. Hãy là người đầu tiên chia sẻ cảm nhận của bạn.
