Method for operating a gas concentration monitoring system, gas-measuring device, central unit, gas concentration monitoring system as well as computer program product

A gas measuring arrangement comprising:

• a plurality of mounting sites configured to perform one of a calibration test and a bump test with a test gas, the calibration test with the test gas determining calibration parameters, the bump test being more rapid than the calibration test, said mounting sites being spaced from each other;
• a plurality of portable gas measuring devices, each of said plurality of portable gas measuring device being portable relative to each other and said plurality of mounting sites, said plurality of gas measuring devices being selectively movable into different parts of an operating area, said each gas measuring device including a gas sensor measuring a gas concentration in the respective parts of the operating area surrounding a respective said gas measuring device, said each gas measuring device storing measured values of the gas concentration, said each gas measuring device being configured to be selectively docked in one of said plurality of mounting sites and configured to be selectively removable from a respective said mounting site, said each gas measuring device being configured to be movable around a predetermined part of the operating area relative to said central unit and other said gas measuring devices;
• said each gas measuring device being configured to cooperate with the test gas of a respective one of said mounting sites to perform the one test, said each gas measuring device having a desired interval between the one test, said each gas measuring device recording test data indicating performance or nonperformance of the one test at one of the desired intervals;
• a central unit connected to said mounting sites, and receiving the stored measured values and the test results for each of said gas measuring devices when the gas measuring devices are arranged in said mounting sites, said central unit generating a safety code based on the stored measured values, and performance or nonperformance of the one test, from all of the plurality of gas measuring devices, said safety code identifying a safety situation of the different parts of the operating area;
• an output device connected to said central unit, said output device receiving and displaying the safety code and informing an operator of the safety situation in the predetermined operating area.