Electrical Conductivity (Salinity) Sensor EC-2500L

EC-2500L Electrical Conductivity Sensor
  • Low power usage enables long term remote operation
  • Internal data logger for collection of data during critical events
  • Optional sheath for wastewater applications
  • SDI12 cable adaptor unit for connection into data logger or controller
  • Modbus RTU, ASCII RS232 or RS485/422
  • Non-logging versions available with SDI-12 and/or 4-20mA output


EC-2500L – Logging Electrical conductivity sensor

The EC-2500L is a logging electrical conductivity sensor is designed and made in Australia, for long-term deployment in the field. Featuring both a digital conductivity and temp sensor it is well suited for low power operations where access and site visits are limited.

Unlike conventional electrode-based cells, the encapsulated toroid design requires very little maintenance, ensuring many years of accurate data collection without recalibration, and the delrin-tube design and embedded temperature sensors avoid issues of degradation due to corrosion.

The full-scale range of the sensor is specified and calibrated from the factory (choose a full-scale range from 500 to 75,000µS/cm) and the temperature sensor can be factory set to compensate the EC output reading.

The sensor is available with a sealed cable of customer-specified length as standard, or it can be optionally fitted with a waterproof socket, and a matching cable plug can be supplied.

The EC-2500L has an integrated data logger that can be programmed to record at intervals which suit your requirements. The recorded measurements can be extracted via an optional SDI-12 adaptor.  For clandestine monitoring, it is possible to integrate batteries to power the logger (negating the need for solar panels) for long-term, discrete deployment.

Optional Extras for EC-2500L

Features include:
  • Digital Logging electrical conductivity sensor which can be installed in active waters (acidic or salty conditions)
  • A reliable and robust sensor ensures minimal servicing visits
  • Suitable for marine applications and waterways with high sediment loads
  • Easy to configure logger – quick retrieval of data using SensorMate software
  • Graphical and tabular display – export to spreadsheet format
  • Standalone operation with onboard battery Pack
  • Various cable options for telemetry and integration applications

Optional Extras for EC-2500L


Measurement Technique: Toroidal Conductivity

Ranges Available: 0–5000 μS/cm, 0–10000 μS/cm, 0–20000 μS/cm, 0–60000 μS/cm & 0–70000 μS/cm. Other ranges are available to order.

Accuracy: ±1% Full Scale range

EC Head Options: flat-side head with slimline shroud (47mm OD) or standard head with large shroud (65mm OD)

Temperature sensor options: standard side-button sensor, optional tip-end fast-response sensor (shown in image)

Sensor Outputs: Internal Data Logger – serial data via SensorMate software optional adaptor provides SDI12 serial output (3 wire)

Power supply: 8 to 30 V DC (at sensor), or on-board battery pack (option)

Current consumption: Sleep <0.2 mA, logging 20 mA, communicating 30 mA (consumption rates vary depending on parameters selected)

Internal data logger: Non-volatile, battery backed RAM with real time clock

Memory size: 4 Mb capacity, with user-selectable wrap function, typically 250,000 readings. (At 5-minute data for >12 months)

Dimensions: (L x OD): 503.5 mm x 47 mm (Slimline), 466 mm x 47 mm (Short Flow), 536 mm x 47 mm (Inline with Fast Response Temp)

Additional information

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