see also Beta version Palm Operating System based data recorder developed by EIT
| The eTech f(t) series
data recorders are the heart of the EIT environmental monitoring systems.
These recorders are monitoring and processing environmental information
in climates ranging from the temperate zones of China, the humid tropics
of Sumatra - Indonesia and the searing heat of the Australian interior.
The eTech data recorder is designed for ease of use. All sensors connect to the recorder using environmental plugs. There are no terminal strips to worry about. All recorders are supplied standard with solar panel power inputs and RS 232 communication port. Real time sensor data can be displayed by pressing the display button. |
 |
Measuring
:
ambient temperature - relative
humidity - solar radiation - soil temperature - wind speed - wind direction
- rainfall - reference crop evapotranspiration -barometric pressure - soil
moisture- water table monitoring - voltage - digital and counter inputs
- water quality - water depth - pH - EC - Dissolved oxygen
General
specifications
| Operating temperature | 10 to 70 Deg C |
| Operating humidity | 0 - 100 % non condensing |
| Communication | RS 232 , RS 485 |
| Communication protocol | Modbus |
| Communication methods | Direct, radio, land line modem, GSM |
| Data storage | EPROM up to 128 Kbytes |
| Power consumption | 1 milliamperes in sleep mode, 20 milliamperes in scan mode |
| Power supply | 9- 16 Volts DC |
| Recorder display | Liquid crystal |
| Sensor inputs | Analogue, digital, counter and serial peripheral |
| Calendar | dd-mm-yyyy (Y2K) |
| Real time clock | hh: mm: ss (Y2K) |
| Scan intervals | Minimum 3 seconds |
| Log period: | 1 minute to 1 day (user defined) |
| Data transfer: | 1200 - 19.2 k baud |
| Input Six channels standard | 6 standard with expansion is modules of six |
| Data reporting | Text and graphical |
| Electronic data interchange | *.db, *.dbf, *.txt |
| Calculations |
Evapotranspiration based on Penman / Monteith equation with user settable function for aerodynamic conductance, stomatal resistance and albedo. Degree day Degree day units Wind Vector reporting Sigma theta for wind speed direction |
| Operating software | Windows 3.1 / Windows 95
/ 98 /2000
Autopilot and auto dial multi station networking Remote real time sensor interrogation Remote real time graphical viewing of wind characteristics Database management Exporting data facility with user definable structure |