OTT ecoLog 1000 - Self-Contained Groundwater Level Logger

An OTT ecoLog 1000 variant is available with an optional conductivity sensor. Monitor water quality conditions at your measuring site to gain awareness of not only your water’s temperature but the chemical make up as well. Easily calibrate the conductivity cell, view measurement data, and perform diagnostics from your mobile device with the LinkComm Operating Software application.

• Application: Surface water, Groundwater
• Measurement technology: Vented pressure cell
• Parameters measured: Waterlevel/pressure, water temperature
• Product Highlights: Integrated modem (4G / 2G), Bluetooth Low Energy (BLE), operation via APP, Lithium Powerpack with plug, exact battery level indicator, service life > 10 years, IP data transmission, cable can be shortened on site
• Measurement range: 0 … 4, 10, 20, 40, and 100 m
• Accuracy: ± 0.05 % FS
• Internal data logger: Yes

• Integrated cellular modem for 4G/2G EU-MEA or IoT LTE-M (CAT M1)
• Wireless local communication via Bluetooth Low Energy (BLE)
• Local communication via APP (Android, iOS, Mac, and Windows 10 devices)
• Remote access via mobile communication, network management capabilities
• Robust design – ceramic pressure cell for level measurement
• Intelligent power management
• Cable length can be easily adjusted on-site

Designed for

• Ground and surface water level monitoring
• Short-term and long term continuous monitoring to collect more data, more often
• Access the data  anytime and anywhere with internet or cell connection (in conjunction with a data hosting bundle)
• Monitor water level rises, drought, climate change, water availability, and water use over  time
• Precise and accurate water level data in near real-time

Used by

• Municipal, state, and federal government agencies
• Water resource managers, scientists, and technicians
• Universities and research centers
• Consultants and engineers

Locations

• Groundwater, in well solution
• Surface water, in pipe solution
• Urban to remote locations with mobile signal
• For fresh, brackish, or salt water

WATER LEVEL:

• Measurement Range: 0 ... 4 m (13 ft ), 0 ... 10 m (33 ft), 0 ... 20 m (66 ft), 0 ... 40 m (131), 0 ... 100 m (328 ft) water column
• Resolution: 0.001 m / 0.1 cm / 0.01 ft / 0.1 inch / 0.0001 bar / 0.001 psi
• Accuracy (linerarity + hysteresis): ± 0.05 % full scale
• Long-term stability (linearity + hysteresis): ± 0.1 %/a full scale
• Units: Water level m/cm/bar/ ft, inch, psi
• Pressure sensor: ceramic / temperature-compensated
• Temperature-compensated operating range: (compensated) -5 °C (ice-free) ... +45 °C

TEMPERATURE:

• Measuring range: -25 °C ... +70 °C
• Resolution: 0.01 °C / 0.02 °F
• Accuracy: ± 0.1 °C / 0.2 °F
• Units: °C/°F

CONDUCTIVITY (OPTIONAL):

• Measuring Range: 5 … 100 000 μS/cm
• Calibrated range: +5 °C … 45 °C
• +41 °F ... +113 °F
• Resolution: 1 μS/cm (5 …2000 μS/cm) · 0.01 mS/cm (0.10 …100.00 mS/cm)
• Accuracy: ±0.5 % of measured value (at least ± 1 μS/cm) (5 …2000 μS/cm)
• ±1.5 % of measured value (at least ±0.01 mS/cm) (0.10 …100.00 mS/cm)
• Units: mS/cm · μS/cm

POWER:

• Power supply: 3.6 V / 26 Ah - Lithium power pack with connector
• Battery life time - configuration depending: > 10 years @ average temperature of 20 °C/68 °F, 1 hour sampling and 1 transmission per day (> 5 years with conductivity variant)

RTC CLOCK:

• Accuracy: ± 26 s / month (at 25 °C / 77 °F) / < ± 3 s using SNTP

INTERFACE:

• Networks / Cellular Modem Frequency / Bands: 2G GSM, GPRS, EDGE; 900 MHz, 1800 MHz
• 4G LTE Cat-1 EU/MEA; B3 (1800 MHz), B8 (900 MHz), B20 (800 MHz)
• LTE-M / Cat M1; B1, B2, B3, B4, B5, B8, B9, B10, B12, B13, B17, B18, B19, B20, B25, B26, B27, B28, B66
• Local comunication: Bluetooth Low Energy (BLE) 5.0 - up to 10 m (free line of sight)
• Antennas: SMA connector with Penta Band Stubby Antenna / BLE built in Chip Antenna

MEASUREMENT:

• Measurement values:
• Water pressure & temperature
• RSSI / Signal strength
• Conductivity (optional)
• PBAT / Power consumption battery
• Supply voltage
• Logger Humidity
• Derived values
• Water level / depth to water
• Salinity & Total Dissolved Solids (optional)
• Sample/storage interval
• Sample/storage interval: 5 s ... 24 h

DATA TRANSIMISSION:

• Interval: 1 min ... 1/week
• IP COM:
• FTP / FTPS TLS 1.2
• HTTP / HTTPS TLS 1.2
• MQTT / MQTTS
• SMS: SMS data transmission / commands

DATA MEMORY:

• Measurement memory: 28 MB (approx. 1,000,000 values)
• Temperature range, operating: -30 °C ... +85 °C (-22 °F ... +185 °F)
• Temperature range, storage: -40 °C ... +85 °C (-40 °F ... +185 °F)
• Humidity: 5% ... 95 % (non-condensing)
• IP rating logger unit: Flood-proof up to 1 week / 1 m (3.3 ft) water column - similar IPx7
• IP rating senor: IP68

DIMENSIONS:

• Logger unit: LxD: 525 x 50 mm (2") / LxD: 20.7 x 2.0 inch
• Pressure probe: LxD: 195 x 22 mm (<1") / LxD: 7.7 x 0.9 inch
• System length: 0 ... 200 m (> 200 m on request) / 0 ... 656 ft (>656 ft on request)

WEIGHT:

• Logger unit incl. battery pack: ~ 900 g (~ 31.7 oz)
• Pressure probe: ~ 670 g (~23.6 oz)
• Pressure probe cable: ~42 g/m (~1.48 oz/m)

MATERIAL:

• Pressure probe housing: Stainless steel 1.4539 (904L)
• Logger housing: Aluminum / POM
• Cable jacket: PUR

REGULATORY:

• EU directives compliance: CE
• US directives compliance: FCC / IC
• PTCRB: According to NAPRD03
• Provider Certification: Verizon Open Development Certification, AT&T IoT Device Certification