RD55 Data Logger


RD55 is a data logger - transmitter designed to satisfy the needs of data processing, logging and transmitting environmental data from any setting.

Conceived mainly for the acquisition of serial digital inputs, has the option of installing an interface board for data acquisition from: frequency, pulses and analog sensors.


- Serial inputs can be: SDI-12, RS232, RS485; the built in protocols satisfy most manufacturers.
- The kind of hardware and embedded operating system let the RD55 incorporate any other proprietary protocol as well as any processing algorithm to satisfy the customer needs.
- The collected data are stored in an internal memory of 8 GB corresponding to intervals from 1 second to 24 hours.
- RD55 has Ethernet interface to be connected to the user IP network.
- Built in 3G/GPRS modem for transmitting from most remote locations without infrastructure.
- A serial RS232 output is supplied for any other way of transmission (radio, satellite, etc.)
- Built in GPS for time synchronization.
- A 4.3” touch screen colour display is supplied for parameter visualization and set up and maintenance tasks.


RD55 Technical Data

Optional Inputs
Analog Voltage Mode
     - 4 single-ended
     - 2 differential
  Resistor mode
     - 2 inputs (e.g. PT100)
  Current Mode
     - 4 inputs (e.g. 4-20 mA)
Digital 3 Inputs:
  - 2 frequency/counter
  - 1 8-bits parallel / synchronous serial
Range, Resolution and Accuracy
  Range Resolution Accuracy
Analog 0¸2.4 V 50 µV 500 µV
0¸70 mV 10 µV 100 µV
Digital frequency 10 KHz 1 Hz 1 Hz
Counter 65535 1 pulse 1 pulse
Measurement Processing
Processing time levels Capture, Sampling and Integration
Range 1 second~24 hours
Data presentation E.g. -30ºC~70ºC, 4-20mA, etc.
Real-Time Clock
Type dd/mm/yyyy - hh:mm:ss
Resolution & Drift 1 second - 10 ppm
Synchronization By internal GPS or SNTP (IP)
The analog interface card, the display and the 3G / GPRS modem are optional elements.
Serial Communication
Ethernet 1 port
RS232 2 ports
RS485 2 ports
SDI-12 1 port
Modem 3G/GPRS
Display & Keypad
Display 4.3” touch screen display
Power Supply Features
Power supply 8~32VDC
Max power consumption 1.5W  
Operating temperature range -40ºC ~60ºC
Processor & OS
Processor ARM Cortex A5
Operating System Windows embedded
Case Painted Aluminium
Length 170 mm
Width 130 mm
Height 60 mm
Weight: 560 gr