Siemens SITRANS F M MAG 8000, Руководство по эксплуатации, Страница: 159 / 164

Measurement (parameters 300 and 334)
● Freely selectable volume and flow unit, where m
3
and m
3
/h is default in display. All other
units are displayed with a display label.
● Excitation frequency in battery operation (manually selected):
– Basic, max. selectable excitation frequency of 1/15 Hz
– Advanced, max. selectable excitation frequency of 6.25 Hz and sensor related
– MAG 8000 default excitation frequency with 2 D-cell battery pack is selected for typically
6 years of operation for MAG 8000 Standard (7ME6810) and MAG 8000 CT (7ME6820),
and 4 years of operation for MAG 8000 Irrigation (7ME6880).
Size Default excitation frequency
MAG 8000 Standard (7ME6810)
MAG 8000 CT (7ME6820)
MAG 8000 Irrigation (7ME6880)
DN 25 to DN 15
(1" to 6")
1/15 Hz 1/15 Hz
DN 200 to DN 600
(8" to 24")
1/30 Hz 1/15 Hz
DN 700 to DN 1200
(28" to 48")
1/60 Hz NA
● Excitation frequency with mains power follows maximum sensor excitation frequency
● Filter constant as numbers of excitations
● Low flow cut off, % of Qn (Q3)
● Empty pipe detection (active symbol on display when active)
● Filter selection for mains power frequency (50/60 Hz)
● Correction factor for change of flow direction or to adjust flow measurement
Data logger (Parameters 600 to 739)
● Logging of 26 records: selectable as daily, weekly or monthly logging
● Each logging includes:
– Consumption on totalizer 1
– Consumption on totalizer 2
– Alarm in current period (13 alarms)
– Meter status (8 values)
– Alarm on high or low consumption for selected logging period
– Totalizer 1 values for all 26 periods can be read on the display
Appendix
C.6 Features
SITRANS MAG 8000
Operating Instructions, 11/2018, A5E03071515-AE
159