Alstom iSTAT M355, Manual, Page: 68 / 154

M3x5/EN M/B User Manual
Page 66
iSTAT M3x5
10.14 Internal Memory
Measurements, alarms, reports and details of supply voltage quality can be stored in the
8MB of internal memory on the
M3x5 . 2MB of the memory is reserved for the storing of EN
50160 compliant PQ reports with details, with capacity to store records for a period greater
than 12 months. All records stored in memory are accessible by communication or memory
card and can be displayed with the
QDSP2 software.
FIGURE 10-15: MEMORY SETTINGS
10.14.1 Memory division
The M3x5 internal memory has 8MB of total memory space. It is divided into 5 partitions
whose size is defined by the user and 2 fixed partitions.
User defined partitions are A, B, C and D recorders that are intended for recording of
measurements (each recorder can store up to 32 parameters), while all alarms that occur
are recorded in an alarm partition. The size of the user defined partitions can be changed as
shown in Figure 10-15.
The 2 fixed partitions are dedicated for recording PQ reports and details.
10.14.2 Memory operation
The memory functions in a cyclic mode in compliance with the FIFO method. This means
that if necessary the oldest records will be deleted to allow the latest records to be stored.
The length of time that data can be stored in each of the recorders depends on the amount
of memory allocated, the storage period and the number of channels enabled in the
recorder.
The storage available in the recorders can be viewed (Memory Info button) as below.