Page 15 - GuardII+ Series 4208 Platform SM User Manual
P. 15

GuardII+ SM Card Operation




                      Operating Condition      Units                 Acquired Using:
                      Line Voltage             Vac, kVac             Modbus, Remote I/O
                                               psi-g,  psi-a,  kPa-g,
                                                  kPa-a,     bar-g,
                      Gas Pressure                                   Modbus, Remote I/O
                                                               2
                                                  bar-a,  kg/cm -g,
                                                        2
                                                  kg/cm -a
                      Asset Temperature        °C, °F                Modbus, Remote I/O
                      Ambient Humidity         %R.H.                 Modbus, Remote I/O, ambient sensor

              4.4.  SM Measurement Archive

                        The GuardII+ can store up to 2 years of measurement data; this storage is referred to as
                     the  Archive.    GuardII+  SM  monitoring  uses  an  analysis  algorithm  to  decide  when
                     measurement data should be saved in the Archive.
                        The Archive stores the following data every day.

                        •  The measurement that had the largest peak value for each enabled input.
                        •  The measurement taken after the first peak of the day.

                        •  Each measurement contains data from each enabled input.
                                     NOTE:
                                     If a measurement satisfies multiple Archiving conditions (for example, it
                                     has the peak value for 2 inputs), it is only saved once.


              4.4.1.  Archive Example #1
                        A monitor is configured to have the G1 and TV inputs enabled.  Suppose that the following
                     occurs:
                        •  The  monitor  is  turned  on  at  9:15  am;  data  will  be first  collected  every 30  minutes
                            starting at 9:30 am.
                        •  The peak value for the G1 input occurs at 1:00 pm.
                        •  The peak value for the TV input occurs at 10:00 pm.

                        The Archive for this day will contain the following measurements:
                        •  The measurement collected at 1:00 pm (the measurement with the peak G1 value).

                        •  The measurement collected at 1:30 pm (the measurement after the first peak of the
                            day).

                        •  The measurement collected at 10:00 pm (the measurement with the peak TV value).

              4.4.2.  Archive Example #2
                        A monitor is configured to have the all inputs enabled.  Suppose that the following occurs:

                        •  The monitor has been running all day without interruption; data will be first collected
                            every 30 minutes starting at 12:00 am.




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