Dejan,
If these equipments are like these, then
Calibration process through Calibration Orders on these equipments is inevitable. Here these Safety Equipments are mapped as EQ as you said and then Maintenance Plans are created on these Equipments which trigger periodical Calibration Orders. Here you enter the QM module for MICs (Master Inspection Characteristics) which specify what you inspect duting the calibration. Rest is self explanatory.
KJogeswaraRao