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ES-2
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ES-2
Electrical Conductivity and Temperature Sensor

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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

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 °C

NOTE: 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.
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 Manufactured under ISO 9001:2015
EM ISO/IEC 17050:2010 (CE Mark)

Downloads

ES-2 Electrical Conductivity and Temperature Sensor Manual Manual PDF, 1.053MB
ES-2 Quick Start Quickstart Guide PDF, 5.6MB
ES-2 Integrator Guide Quickstart Guide PDF, 0.277MB
ES-2 Firmware Updater Firmware EXE, 1.3MB

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