SFAW
10
Festo – SFAW – 1602a English
2.2.3
Volume pulse
A threshold value for the volume can be set in the accumulated volume measurement. If the configured
threshold value is reached, a switching impulse is emitted at the output OutC for an adjustable period
of time. With each switching impulse, the volume measurement is started again
(
è
Fig. 4).
Volume pulse with accumulated volume measurement
Setting NO (normally open)
Setting NC (normally closed)
t
t
0
OUT C
1
0
Pulse
V
SP
t
t
0
OUT C
1
0
SP
Pulse
V
Fig. 4
Volume pulse
2.3
Analogue output
Analogue signal
The signal of the analogue output can be assigned the physical measured variables of flow rate or tem
perature. The physical measured value of flow rate is configured as standard.
Output signal
The analogue output can be operated either as a voltage output 0 … 10 V or 1 … 5 V or as a current
output 4 … 20 mA. The voltage output 0 … 10 V is set at the factory.
Scaling of the analogue signal
The analogue output signal 0 … 10
V, 1 … 5 V or 4 … 20 mA is assigned to the complete sensing range at
the factory. If only part of the sensing range is to be used, the analogue value output can be scaled to
this partial range.
