subject: Data Loggers Functions And Specifications [print this page] A data logger (also data logger or data recorder or data acquisition system) is an electronic device that records data over time either with a built in instrument or sensor or via external instruments and sensors. Increasingly, they are based on a digital processor (or computer).Some data loggers interface with a personal computer and utilize software to activate the data logger and view and analyze the collected data, while others have a local interface device (keypad, LCD) and can be used as a stand-alone device.
It is common for general purpose types to be programmable; however, many remain as static machines with only a limited number or no changeable parameters. Electronic data loggers have replaced chart recorders in many applications.
One of the primary benefits of using data loggers is the ability to automatically collect data on a 24-hour basis. Upon activation, data loggers are typically deployed and left unattended to measure and record information for the duration of the monitoring period. This allows for a comprehensive, accurate picture of the environmental conditions being monitored, such as air temperature and relative humidity.
In the present times, a digital data logger is used in place traditional ones. These digital data loggers are very compact in size, battery operated and hence highly portable. They come laced with a microprocessor, contains internal memory for data storage and of course the sensors that would help it record the data. Some of the data loggers are also interfaced with a personal computer and with the help of software that would activate the data logger and would make it really easy for the operators to analyze and work on the data collected thus far. Other devices, which are not interfaced with the computer, have other devices such as an LCD or keypad, in order to represent the data and facilitate computations etc.
The specification of the data logger to be used for various tasks, especially environment conservation, calculation of heat generated etc is:
Multi channel input device the device should be able to accept the inputs from a given number of channels or sensors.
The data logger must be able to calculate the input from different sources like thermocouples, kilowatt hour meters, 4 20 mA signals from flow meters, PT100 sensors, pulse output from flow meters etc.
Data loggers are now available at highly affordable rates. Technology has evolved and with the availability of high end machinery, it is very easy to manufacture data loggers that would provide high end precision. And considering what a data logger can do, the cost should hardly be an issue. Data is always important for a company. Any deviation in the actual performance as against the expected performance can be pin pointed with the help of precise data. Thus, data recorder helps in assuring optimum performance and weeding out the factors that has caused down fall in the performance.
Perform an internet search regarding data loggers and you will be able to browse through various specifications of the data loggers. You may get yourself handsome deals and discounts if you shop for the data loggers online.
