Siemens SITRANS F M MAG 8000, Руководство по эксплуатации, Страница: 100 / 164

PW = pulse width
Note
The calculated numbers of pulses are an average of the measuring period.
The factory value of pulse width shall be 10ms by if Z option L70-L74 for pulse A or L90-L94
for pulse B selected.
For MAG 8000 CT please see definition of Q3 flow rates in the certificates for OIML R 49 or
MI 001.
Net flow output
The MAG 8000 has a special net pulse output that includes bi-directional flow calculations.
The example shows that over time, the net pulse output indicates the bi-directional totalizer
as calculated internally. The same principle applies for forward and reverse flow calculation.
By changing the status of the pulse output, the internal pulse calculator will be reset.
Flow Net totalizer in
meter display
(Bi-directional)
Pulse output forward Uni-directional
mode
Volume [m
3
]
Pulse output net forward Bi-direction‐
al mode
Volume [m
3
]
Volume [m
3
] Internal calcula‐
tion
Delivered volume Internal calcula‐
tion
Delivered volume
0 - 0 0 0
10 - 10 0 10
−2 - 0 -12 0
Technical data
10.6 Output characteristics
SITRANS MAG 8000
100
Operating Instructions, 11/2018, A5E03071515-AE