Data Loggers are electronic instruments which capture and record data related to physical parameters like temperature, humidity, pressure, liquid flow etc. as well as electrical parameters like voltage, current etc. and reproduce them in a form suitable to the user. The reading of information, storage and reproducibility are the important parameters that define a data logger.
Depending on how each of these parameters are handled data loggers can be classified in various categories and have various nomenclatures.
Here are the various parameters that user can select from to choose a data logger
7 segment LED display / Alphanumeric LCD display / Graphic LCD display
Sensor Inputs :
RTD / Thermocouple / mV / mA / load cell / Universal etc
Number of channels :
1/ 2/4/8/16/32 etc.
32k / 64k / 2MB / USB Flash etc
RS232 / USB / RS485 / Ethernet TCP/IP etc
Mod bus / Text etc.
SMS alarm / Centronics Printer interface / Grouping of channels etc
Log interval :
Minute. Seconds / Hours.Minutes etc
High/ Low / Very High / Very Low / Common relay/ Two relays/ Individual Channel Relays
Battery Operated / AC Mains operated / DC Operated
Panel Mount / DIN Size / Wall mount / Hand held / Table Top / Flameproof