ES-2

Electrical Conductivity and Temperature Sensor

The ES-2 is designed to measure the electrical conductivity of water in a pipe or tank.

Measure the electrical conductivity of water in a pipe or tank
Pair it with a TEROS 12 soil moisture sensor
Understand the salts remaining in your soil or substrate.

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Overview / Features: Complete your water data

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.

Specifications: TECHNICAL SPECIFICATIONS

Measurement Specifications

Temperature

Range: –40 to 60 °C

Resolution: 0.1 °C

Accuracy: ±1 °C

Bulk Electrical Conductivity (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

In-line pipe connector type: 1-in Tee socket pipe fitting

Operating Temperature Range

Minimum: –-40 °C

Maximum: 60 °C

NOTE: Sensors may be used at higher temperatures under certain conditions; contact Customer Support for assistance.

Cable Length

5 m (standard)

75 m (maximum custom cable length)

NOTE: Contact Customer Support if a nonstandard cable length is needed.

Connector Types

3.5-mm stereo plug connector or stripped and tinned wires

Electrical and Timing Characteristics

Supply Voltage

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

Other

GSA

View GSA details

Compliance

EM ISO/IEC 17050:2010 (CE Mark)

Prop 65 warning