by Ajinkya Electronics Systems

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

Display :

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.

Memory :

32k / 64k / 2MB / USB Flash etc

Connectivity :

RS232 / USB / RS485 / Ethernet TCP/IP etc

Protocol :

Mod bus / Text etc.

Options :

SMS alarm / Centronics Printer interface / Grouping of channels etc

Log interval :

Minute. Seconds / Hours.Minutes etc

Alarm :

High/ Low / Very High / Very Low / Common relay/ Two relays/ Individual Channel Relays

Supply :

Battery Operated / AC Mains operated / DC Operated

Enclosure :

Panel Mount / DIN Size / Wall mount / Hand held / Table Top / Flameproof