 ECH2O Loggers are 5-channel data collection stations that are designed to monitor Decagon's sensors over an extended period of time. There are two ECH2O Logger models: model Em50, and model Em50R. Below are the general specifications and a description of the two types. Model Em50 The Em50 is the non-radio enabled data collection system. It interfaces with up to five inputs, and uses an RS-232 cable connected to the comm port in order to set the station id, time, date, scan interval, and to collect data.
Model Em50R The Em50R system has an added radio transceiver module, which you can use to set the station id, time, date, scan interval, and to collect data via telemetry. One Rm1 can collect data from different EM50Rs. The radio module has 900MHz, 916MHz or 2.4GHz spread spectrum RF communication (depending on individual country regulations)and a 5-mile line of sight range under most conditions. | Specifications
- Input Channels: 5, with 32-bit digital resolution and 2.5V excitation on each channel.
- Port Type: 3.5mm “stereo-plug” style connector.
- Data Storage: 1MB (36,800 scans on all 5 ports)
- Memory Type: Non-Volatile Flash Data
- Battery Capacity: 5 AA alkaline or Lithium batteries
- Enclosure: Weatherproof, impact and UV-resistant Polymer
- Enclosure rating: IP45, NEMA4X
- Operational Environment: 45°C to -40 °C, up to 100% RH
- Communication: Dedicated RS232 port on all models, 900MHz-2.4GHz spread spectrum RF on radio-equiped models
- Software interface: DataTrac Lite (Supplied with Em50)
For additional technical information and user manual see: http://www.decagon.com/soil_moisture/
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