Abstract: Methods and systems for determining whether a measurement system is used in a valid state, includes: automatically reading out a plurality of information items; automatically obtaining information on current operating environmental conditions; automatically reading reference information items identifying the measurement system components and/or representing one or more characteristics of the measurement system components and information on reference operating environmental conditions; and comparing the read out information items identifying the measurement system components and/or representing one or more characteristics of the measurement system components with the reference information items identifying the measurement system components and/or representing one or more characteristics of the measurement system components, and checking whether the current operating environmental conditions comprise an allowable value or are within an allowable range defined by the information on the reference operating enviro

Abstract: The disclosure describes a method of protecting a measurement system from unauthorized changes. The method comprises automatically reading out a plurality of information items from the measurement system, wherein the measurement system comprises a plurality of measurement system components and at least one local storage device, wherein the plurality of information items include at least one of identity of the measurement system components or at least one characteristic of the measurement system components; automatically combining the read out information items of each of the plurality of the measurement system components into a data collection and generating a summary data which represents the data collection; creating a signature based on the summary data; and storing the summary data and the signature in the at least one local storage device of the measurement system. This method provides more efficient and secure protection of measurement system and its components from an unauthorized change.