From thermohygrometer to monitoring system: The measurement methods available
Three methods have become established for monitoring quality-relevant environmental parameters, all of which have their individual advantages and disadvantages: Thermohygrometers, stand-alone data loggers and automated monitoring systems.
Min./max. thermometers / thermohygrometers: The inexpensive entry-level option
Thermohygrometers are an inexpensive and uncomplicated method of monitoring temperature and humidity. You can use them to measure temperature and humidity, without having to put much effort or expense into their installation or maintenance. Only the current ambient value of the two measurement parameters is calculated and shown on a (usually large) display. Measuring intervals of a thermohygrometer can be customized and, depending on the model, the instrument stores the measuring data of a time period of up to 90 days.
Stand-alone data loggers: Compact and efficient
Stand-alone data loggers are small, independent measuring units for measuring and documenting environmental values such as temperature, humidity or pressure. They usually feature a screen with the current readings and an LED display for any limit value violations. Data loggers have to be read out manually; this is usually done via USB cable or SD card.
With an automated environmental monitoring system, you can monitor temperature and humidity, among other things, reliably and without any gaps. This kind of system consists of multiple data loggers, records measurement data automatically and documents it reliably. A high level of data security is achieved via intermediate storage of the readings on multiple levels. Your readings are stored in the loggers as well as in the system, and you can access them at any time and from anywhere. In the event of any limit value violations, various alarm options are available to enable you to react promptly to system-critical incidents.
In our free brochure, you will find a detailed comparison of our measurement and monitoring solutions.
Data security vs. degree of automation: What you need to know
When monitoring quality-relevant environmental parameters, two rules of thumb apply:
The more measuring points to be monitored, the higher degree of automation you should be looking for in a measurement solution. The reason for this is simple: Potential errors that occur during manual measurement data recording and documentation are minimized.
The more stringent the regulatory requirements for documentation, evaluation and archiving of data, the more sensible it is to have a high degree of automation. The reason: An automated system takes care of the prescribed storage and documentation for you. Data integrity is also ensured: Automated solutions make tampering with the data virtually impossible.
Conclusion: Challenging measuring tasks with stringent data security requirements are best accomplished with an automated monitoring solution.