PDF data loggers are measuring devices that record different parameters, such as ambient temperatures and humidity, over a longer period of time. Data loggers are usually configured prior to the measurement in order to record the measurement parameters at the selected measurement points over several days, weeks or months according to the set recording rates. The PCE-HT 72 PDF data logger from PCE Instruments is a data logger for temperature and air humidity. The measuring range is between -30 … 60 °C and 0 … 100 % r.F. A memory of 20010 measured value sets permits the use of the PDF data logger for up to several months. Data logger PCE-HT 72 Report. The recording interval can be set in the range between 2 seconds and 24 hours. To configure the data logger, it can be connected to the computer's USB port and then set up via the software. The battery-operated PDF data logger is ready for immediate use after which it can be placed at the desired measuring point for several months self-sufficient. After the recording period, the PDF data logger can be connected directly to a PC. The PDF data logger automatically generates a measurement protocol that can be printed or saved directly.
The measurement protocol from the PDF data logger contains the maximum and minimum measurement values for temperature and humidity, as well as a graph that shows the measurement progress over the entire recording period. Thus, the measured values can be displayed in tabular form or without gaps using a graph. The PDF data logger stores the measured values in the internal memory until it is full or until a new measurement is started by the software. In the software, the user has additional options for analysis of the measurement data. Thus, with the help of the software it is also possible to export the measuring data as CSV file from the PDF data logger. Another advantage lies in the simplicity of use. Data logger PCE-HT 72 TRANSPORT.In the case of transport monitoring at the loading location, the PDF data logger can be configured using the software, at the point of arrival, for example, where goods are delivered and the receiver wants to check whether no limit values have been exceeded during transport, the PDF-data logger without special software can be read at almost every place in the world. When plugging into the USB port of the computer the PDF data logger is recognized as a mass storage device, which automatically creates the protocol in PDF format. Manipulation of the measured values at the destination is also made it more difficult for WAS to ensure the reliability of the data in the event of possible complaints.
To ensure that the user of the PDF data logger always has an overview of the measured values, even during measurement for temperature and humidity, the data logger is equipped with an LCD. The display continuously informs about the current measured values for temperature and humidity as well as the battery status and the memory status. Moreover, by pressing a button, the maximum and minimum measured value can be called up directly from the PDF data logger and displayed on the display.
PDF-data logger application areas
PDF data loggers are used whenever a long-term recording of one or more measurement parameters is to be carried out without the need for staff to be present on site at all times. The PDF data loggers are used, for example, in the monitoring of transports (e.g. truck transport), in tests in the food industry, in the monitoring of storage conditions, in the inspection of environmental conditions in production plants, in the real estate sector, in quality tests or in research and development. Furthermore, the use of this PDF data logger can also be of interest in the private sector. Due to its small and compact design, the PDF data logger can also be positioned at measuring points where space is limited, but the integrated display is also sufficiently large to use the PDF data logger as an alternative display unit. This way, for example, you can always keep an eye on the current temperatures and humidity values in offices, and at the same time record the measured values over the entire course of the day and night, in order to check, for example, whether the heating or air-conditioning systems work according to the specifications.
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