MSA SUPREMA - Figure 4-31: Calibration History

REV 0, June 2005 Page 85
Operation Manual SUPREMA
4. Operation of the System
Figure 4-31: Calibration history
When an input is selected, the appropriate calibration history is displayed in the corresponding
field, if the input has already been calibrated. The entry for a calibration process consists of
two rows, listing first the test gas measurement and then the zero gas measurement. The
first
calibration entry is designated by a “*” at the beginning of the zero gas measurement row.
Each entry includes the following data:
• Date/Time of accepting and closing the calibration menu
• Gas types for the zero and test gases
• Gas concentrations for the zero and test gases
• Measured values for the zero and test gases
• Difference signal Ux for the zero and test gases (scroll to the right)
Events (System error, signal problem, and alarm history)
This history stores the system errors, signal problems, and alarms for the individual inputs.
Each entry includes the following data:
• Date/Time that the event occurred
• Brief description of the event
• Measuring point number (input)
• Additionally, system events are logged (e.g. BUS failures or similar) for service
purposes. They serve as a source of information for the MSA service staff.
Configuration change history
This history stores changes to input parameters.
Each entry includes the following data:
• Date/Time of accepting and closing the inputs menu
• Measuring point number
• Designation of the changed parameter
• New value for the changed parameter