Siemens SITRANS F Series Operating Instructions Manual page 102

Technical data
10.6 Output characteristics
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
102
Net totalizer in Pulse output forward Uni-directional
meter display
(Bi-directional)
Volume [m ] Internal calcula‐
3
0 -
10 -
−2 -
mode
Volume [m ]
3
Delivered volume Internal calcula‐
tion
0
10
0
Operating Instructions, 03/2020, A5E03071515-AH
Pulse output net forward Bi-direction‐
al mode
Volume [m ]
3
Delivered volume
tion
0 0
0 10
-12 0
SITRANS FM MAG 8000