R tech series data sheet

.Applications : agricultural research - soil moisture monitoring - plant disease forecasting - hydrological investigations - catchment management research - range land research - aerodynamic modeling - natural resource project management - environmental statutory reporting

Measuring :

The R tech series data recorder supports a very large range of analogue, digital and counter sensors. The R tech series data recorder also seamlessly links with the EIT telemerty devices to provide wireless connection to remotely located sensors.

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

Product description	R 20, R 50 , R 100
Total number of channels	20, 50 , 100
Radio input channels	14, 44, 94
Physical input channels	6
Analogue input	4 or 5 analogue  (0-1 VDC) or digital (user defined) Optional analogue input  0 – 2.5 and 0 - 5 VDC
Counter input	1 or 2 digital inputs (user selectable)
Microprocessor type	Rabbit 2000 (Rabbit Semiconductors USA)
Memory capacity std	30,000 records (28 days of data for 20 channels)  Upgradeable for R 50, R 100.
Memory expansion (opt)	Factory upgadeable
Program memory type	Flash
Data storage	NVRAM
Minimum log period	3 seconds
Minimum scan period	3 seconds
Power	Nominal 12 VDC (9 - 15)
Operating current	4 mAmps in sleep mode, 60 mA  in wake mode
On board display	2 line 16 alphanumeric LCD with back light
Communications (COM 1)	Serial RS 232 Modbus ASCII (std)
Communications (COM 2)	RS 232, SDI-12, RS 485 (Com 2 optional extra)
Communication (COM 3)	EIT Radio and Sensor Expansion port (std)
PC - communication baud rate	1200, 2400, 4800,9600,19200,32000
Communications options	Landline modem, GSM, EIT 433 radio modems, UHF  450,  Spread Sprectrum 900 MHz  radio
Operating software	Windows 95 an later
Data storage format	dBase IV / Paradox
Export functions	dBase, Paradox, ASCII text, Excel, EnviroSCAN ES 4.0, Ausvit
Daily summary	On board daily summaries of physical input channels
Period summary	Instantaneous or averaging of period values
On board calculations	Evapotranspiration
Sensors supported	air temp, soil temp, water temp, RH %, solar radiation, wind speed, wind direction, leaf wetness, rainfall, soil moisture Sentek SDI -12 soil moisture sensor (via radio input) SDI-12 , RS 485 sensor protocol (via radio input)