ES-2
Electrical Conductivity and Temperature Sensor

ES-2

The ES-2 Electrical Conductivity and Temperature Sensor is designed to measure the electrical conductivity of water in a pipe or tank.  When you pair the new ES-2 with a TEROS 12 soil moisture sensor in the soil, you’ll begin to develop a complete picture of the salts that are going into your system, as well as the salts remaining in your soil or substrate.

METER is trusted by

University of Idaho
Brigham Young University
Temple University
Campbell Scientific

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Specifications
GSA View GSA details
Measurement Specifications
Temperature Range: –40 to 60 °C

Resolution: 0.1 °C

Accuracy: ±1 °C

Bulk EC Range: 0 to 120 dS/m

Resolution: 0.001 dS/m

Accuracy: ±0.01 dS/m or ±10% (whichever is greater)

Communication Specifications
Output DDI serial or SDI-12 communication protocol
Data logger compatibility METER ZL6 data loggers and any data acquisition system capable of 3.6- to 15-VDC power and serial or SDI-12 communication
Physical Specifications
Dimensions Length: 10.9 cm (4.30 in)

Width: 2.4 cm (0.95 in)

Thread: 1/2-in National Pipe Thread

Operating temperature range Minimum: –40 °C
Maximum: 60 °CNOTE: Sensors may be used at higher temperatures under certain conditions; contact Customer Support for assistance.
In-line pipe connector type 1-in Tee socket pipe fitting
Cable length 5 m (standard)

75 m (maximum custom cable length)NOTE: Contact Customer Support if a nonstandard cable length is needed.

Prop 65 warning

Connector types 3.5-mm stereo plug connector or stripped and tinned wires
Electrical and Timing Characteristics
Supply voltage (VCC to GND) Minimum: 3.6 V

Maximum: 15.0 V

Digital input voltage (logic high) Minimum: 2.8 V

Typical: 3.6 V

Maximum: 5.0 V

Digital input voltage (logic low) Minimum: –0.3 V

Typical: 0.0 V

Maximum: 0.8 V

Digital output voltage (logic high) Typical: 3.6 V
Power line slew rate Minimum: 1.0 V/ms
Current drain (during measurement) Minimum: 20 mA

Typical: 20 mA

Maximum: 28 mA

Current drain (while asleep) Typical: 0.03 mA
Power up time (DDI serial) Maximum: 100 ms
Power up time (SDI-12) Minimum: 100 ms

Typical: 200 ms

Maximum: 250 ms

Power up time (SDI-12, DDI disabled) Typical: 125 ms
Measurement duration Typical: 25 ms

Maximum: 50 ms

COMPLIANCE EM ISO/IEC 17050:2010 (CE Mark)

Prop 65 warning

A photo of ES-2 electrical conductivity and temperature sensor

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