Data logger: All You Need to Know About It

A data logger is an electronic device that monitors and records environmental parameters through its sensor that receives the information and later will store it in a computer chip. Different data loggers capture various measurements that include humidity, temperature, co2, voltage, light intensity, room occupancy, rainfall, soil moisture, wind speed and direction etc. These loggers run on a battery and contain a microprocessor as they are regularly controlled with an external source. They also deal with digital signals. If we see in the current times three types of instruments are in demand:

  1. Data Loggers
  2. Real-Time Data Acquisition System
  3. Chart Recorders

But data loggers usually have a huge demand in drawing and calculation measurements and temperature.

They are used by connecting a graphing software to the logger, which lets the person know-how and when it should be started and what sensors must be used and provides all other instructions that must be followed. But the sensors must be carefully calibrated. Otherwise, they could be taking the wrong readings, and if something unexpected happens in between readings, the data will not be calculated. After drawing the complete information, the loggers can be connected to the PC, and the information can be transmitted into the monitor. The data can also be directly calculated in the loggers and can be printed immediately. These loggers can also be ‘wireless’ which are always connected to the PC through Bluetooth, and the information can be sent into the computer anytime and anywhere. Data loggers are available in many varieties and different inputs as well. If we go through all these types and inputs, we can say that the process is not time-consuming and can collect the readings within no time. The main functions of these loggers include several inputs as few of the loggers accept only single sensor input, size, speed/memory, real-time operation and data download. One of the best advantages of these loggers is that the measurement can be collected or recorded within a day.

Uses of Data Loggers

  • Calculates and verifies the humidity level and temperature
  • Gives the perfect readings of maintenance information on heating, ventilation, and air conditioning operations to assist energy conservation.
  • Helps in the agricultural industry.
  • Helps in the maintenance of vaccine storage in medical institutions.

Measurement accuracy

The accuracy usually changes widely among different loggers but again, the perfect readings of different loggers usually help one to avoid errors in the readings. But while recording the readings, one must always go through the charts many times and must not make the conclusions with a single value as the measurements can vary at a huge range.

Types of Data Loggers

They can be single-channel units, Multi-channel data connection units or stand-alone devices with a local interface. The wireless loggers usually have a temperature range from -90 to 140-degree Celcius with an accuracy of 0.1 degrees Celsius. These loggers are of different types, which include general purpose data loggers, temperature/humidity loggers, electrical power loggers and specific purpose data loggers. Most of the loggers under general purpose are multi-channel data loggers, which can take various sensor types such as voltage, pulse, 4-20mA current loop etc.


Benefits of Using Data Loggers

They are the most supportive and are easy devices to draw the temperature manually compared to other simple tools such as a thermometer, timer, pen and paper. Other than all these using an electronic data logger can make the work easy, reliable and effective. This process can also save one time in calculating and recording the temperature at different times and localities also during emergency and dangerous situations. The cost of data loggers is budget-friendly as the demand for them is increasing in recent times, and as the demand increases, the costs do reduce.

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