Siemens SITRANS F M MAG 8000, Руководство по эксплуатации, Страница: 161 / 164

Data protection
● All data stored in an EEPROM. Totalizers 1 and 2 are backed up every 10 min., statistic
every hour and power consumption and temperature measurement every 4 hours.
● Password protection of all parameters and hardware protection of calibration and revenue
parameters.
Battery power management
● Optimal battery information on remaining capacity.
● Calculated capacity includes all consuming elements and available battery capacity is
adjusted related to change in ambient temperature.
Diagnostic
● Continuous self test including
– Coil current to drive the magnetic field
– Signal input circuit
– Data calculation, handling and storing
● Features
– Alarm statistics and logging for fault analyzing
– Electrode impedance to check actual media contact
– Flow simulation to check pulse and communication signal chain for correct scaling
– Number of sensor measurements (excitations)
– Transmitter temperature (battery capacity calculation)
– Low impedance alarm for change in media
– Flow alarm when defined high flow exceeds
– Verification mode for fast measure performance check
● Advanced version includes
– Insulation "Cross-Talk" test
– Meter utilization
– Consumption profile
– Statistical flow and consumption data
Insulation test (Advanced version only)
Test of signal immunity against disturbances and poor installations. Test interval is selectable
and measurement is interrupted during the test period of 4 min.
Leakage detection (Advanced version only)
Monitoring the lowest flow or volume during selected time window within 24 hours. Leakage
is detected over a selectable period during which monitored values exceed the possible
leakage level. Min. and max. values are stored with date registration. Last store value visible
on the display.
Appendix
C.6 Features
SITRANS MAG 8000
Operating Instructions, 11/2018, A5E03071515-AE
161