ES-2 Electrical Conductivity Sensor
The ES-2 Electrical Conductivity & Temperature Sensor is designed to measure the electrical conductivity (EC) and temperature of water in a pipe or tank. EC is useful for measuring salinity levels or quality of irrigation water.
The ES-2 can be installed in line with an irrigation pipe, in a water body, or in a tank.
SPECIFICATIONS
| 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. |
| 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 |
| Measurement duration | Typical: 25 ms Maximum: 50 ms |
| COMPLIANCE | Manufactured under ISO 9001:2015 EM ISO/IEC 17050:2010 (CE Mark) |
California requires the following notice
⚠️ WARNING:
This product may contain chemicals including ethylene glycol, lead, nickel, styrene and cadmium, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov